/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-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 22:57:24,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 22:57:24,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 22:57:24,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 22:57:24,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 22:57:24,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 22:57:24,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 22:57:24,155 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 22:57:24,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 22:57:24,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 22:57:24,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 22:57:24,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 22:57:24,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 22:57:24,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 22:57:24,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 22:57:24,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 22:57:24,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 22:57:24,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 22:57:24,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 22:57:24,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 22:57:24,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 22:57:24,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 22:57:24,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 22:57:24,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 22:57:24,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 22:57:24,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 22:57:24,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 22:57:24,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 22:57:24,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 22:57:24,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 22:57:24,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 22:57:24,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 22:57:24,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 22:57:24,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 22:57:24,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 22:57:24,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 22:57:24,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 22:57:24,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 22:57:24,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 22:57:24,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 22:57:24,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 22:57:24,201 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-MCR.epf [2019-12-27 22:57:24,215 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 22:57:24,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 22:57:24,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 22:57:24,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 22:57:24,217 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 22:57:24,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 22:57:24,218 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 22:57:24,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 22:57:24,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 22:57:24,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 22:57:24,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 22:57:24,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 22:57:24,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 22:57:24,219 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 22:57:24,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 22:57:24,220 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 22:57:24,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 22:57:24,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 22:57:24,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 22:57:24,221 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 22:57:24,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 22:57:24,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 22:57:24,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 22:57:24,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 22:57:24,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 22:57:24,222 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 22:57:24,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 22:57:24,222 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 22:57:24,222 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 22:57:24,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 22:57:24,223 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 22:57:24,223 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 22:57:24,527 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 22:57:24,540 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 22:57:24,544 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 22:57:24,546 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 22:57:24,546 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 22:57:24,547 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2019-12-27 22:57:24,629 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c9a58314/3b8011ce5e5042adad3e70e14579cc19/FLAG49dbe19b6 [2019-12-27 22:57:25,153 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 22:57:25,154 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2019-12-27 22:57:25,181 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c9a58314/3b8011ce5e5042adad3e70e14579cc19/FLAG49dbe19b6 [2019-12-27 22:57:25,428 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c9a58314/3b8011ce5e5042adad3e70e14579cc19 [2019-12-27 22:57:25,439 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 22:57:25,441 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 22:57:25,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 22:57:25,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 22:57:25,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 22:57:25,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:57:25" (1/1) ... [2019-12-27 22:57:25,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65149110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:57:25, skipping insertion in model container [2019-12-27 22:57:25,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:57:25" (1/1) ... [2019-12-27 22:57:25,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 22:57:25,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 22:57:25,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:57:25,970 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 22:57:26,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:57:26,158 INFO L208 MainTranslator]: Completed translation [2019-12-27 22:57:26,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:57:26 WrapperNode [2019-12-27 22:57:26,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 22:57:26,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 22:57:26,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 22:57:26,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 22:57:26,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:57:26" (1/1) ... [2019-12-27 22:57:26,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:57:26" (1/1) ... [2019-12-27 22:57:26,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 22:57:26,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 22:57:26,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 22:57:26,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 22:57:26,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:57:26" (1/1) ... [2019-12-27 22:57:26,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:57:26" (1/1) ... [2019-12-27 22:57:26,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:57:26" (1/1) ... [2019-12-27 22:57:26,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:57:26" (1/1) ... [2019-12-27 22:57:26,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:57:26" (1/1) ... [2019-12-27 22:57:26,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:57:26" (1/1) ... [2019-12-27 22:57:26,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:57:26" (1/1) ... [2019-12-27 22:57:26,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 22:57:26,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 22:57:26,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 22:57:26,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 22:57:26,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:57:26" (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 22:57:26,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 22:57:26,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 22:57:26,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 22:57:26,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 22:57:26,359 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 22:57:26,360 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 22:57:26,360 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 22:57:26,361 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 22:57:26,361 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 22:57:26,361 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 22:57:26,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 22:57:26,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 22:57:26,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 22:57:26,363 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 22:57:26,751 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 22:57:26,751 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 22:57:26,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:57:26 BoogieIcfgContainer [2019-12-27 22:57:26,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 22:57:26,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 22:57:26,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 22:57:26,759 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 22:57:26,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 10:57:25" (1/3) ... [2019-12-27 22:57:26,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d5a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:57:26, skipping insertion in model container [2019-12-27 22:57:26,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:57:26" (2/3) ... [2019-12-27 22:57:26,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d5a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:57:26, skipping insertion in model container [2019-12-27 22:57:26,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:57:26" (3/3) ... [2019-12-27 22:57:26,763 INFO L109 eAbstractionObserver]: Analyzing ICFG safe030_tso.opt.i [2019-12-27 22:57:26,771 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 22:57:26,771 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 22:57:26,778 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 22:57:26,780 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 22:57:26,807 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,807 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,808 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,808 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,808 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,809 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,809 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,809 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,810 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,810 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,810 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,811 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,811 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,811 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,811 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,812 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,812 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,812 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,817 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,817 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,817 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,818 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,824 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,824 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,824 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,825 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,834 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,834 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,834 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,834 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:57:26,852 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 22:57:26,871 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 22:57:26,871 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 22:57:26,871 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 22:57:26,872 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 22:57:26,872 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 22:57:26,872 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 22:57:26,872 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 22:57:26,872 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 22:57:26,887 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 52 transitions [2019-12-27 22:57:26,889 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 61 places, 52 transitions [2019-12-27 22:57:26,964 INFO L132 PetriNetUnfolder]: 1/49 cut-off events. [2019-12-27 22:57:26,964 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:57:26,970 INFO L76 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 49 events. 1/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 23 event pairs. 0/47 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:57:26,972 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 61 places, 52 transitions [2019-12-27 22:57:27,001 INFO L132 PetriNetUnfolder]: 1/49 cut-off events. [2019-12-27 22:57:27,001 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:57:27,002 INFO L76 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 49 events. 1/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 23 event pairs. 0/47 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:57:27,004 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 22:57:27,005 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 22:57:28,326 INFO L206 etLargeBlockEncoding]: Checked pairs total: 473 [2019-12-27 22:57:28,327 INFO L214 etLargeBlockEncoding]: Total number of compositions: 43 [2019-12-27 22:57:28,331 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 22:57:28,347 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 22:57:28,349 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 22:57:28,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 22:57:28,357 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:57:28,358 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:57:28,359 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:57:28,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:57:28,365 INFO L82 PathProgramCache]: Analyzing trace with hash -375115777, now seen corresponding path program 1 times [2019-12-27 22:57:28,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:57:28,380 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317758941] [2019-12-27 22:57:28,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:57:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:57:28,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:57:28,747 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317758941] [2019-12-27 22:57:28,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:57:28,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:57:28,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1236336629] [2019-12-27 22:57:28,751 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:57:28,761 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:57:28,777 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 22:57:28,778 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:57:28,783 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:57:28,783 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:57:28,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:57:28,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:57:28,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:57:28,802 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 22:57:28,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:57:28,834 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-27 22:57:28,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:57:28,836 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 22:57:28,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:57:28,845 INFO L225 Difference]: With dead ends: 44 [2019-12-27 22:57:28,845 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 22:57:28,847 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 22:57:28,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 22:57:28,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 22:57:28,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 22:57:28,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 22:57:28,883 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 22:57:28,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:57:28,884 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 22:57:28,884 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:57:28,884 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 22:57:28,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 22:57:28,885 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:57:28,885 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:57:28,886 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:57:28,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:57:28,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1257240011, now seen corresponding path program 1 times [2019-12-27 22:57:28,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:57:28,887 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331104041] [2019-12-27 22:57:28,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:57:28,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:57:28,944 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 22:57:28,944 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331104041] [2019-12-27 22:57:28,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:57:28,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:57:28,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1408573401] [2019-12-27 22:57:28,947 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:57:28,949 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:57:28,955 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 13 transitions. [2019-12-27 22:57:28,958 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:57:29,002 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 22:57:29,003 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:57:29,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:57:29,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:57:29,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:57:29,004 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 4 states. [2019-12-27 22:57:29,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:57:29,033 INFO L93 Difference]: Finished difference Result 40 states and 69 transitions. [2019-12-27 22:57:29,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:57:29,034 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 22:57:29,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:57:29,035 INFO L225 Difference]: With dead ends: 40 [2019-12-27 22:57:29,035 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 22:57:29,036 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:57:29,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 22:57:29,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2019-12-27 22:57:29,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-12-27 22:57:29,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 61 transitions. [2019-12-27 22:57:29,043 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 61 transitions. Word has length 9 [2019-12-27 22:57:29,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:57:29,043 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 61 transitions. [2019-12-27 22:57:29,043 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:57:29,043 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 61 transitions. [2019-12-27 22:57:29,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 22:57:29,044 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:57:29,044 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:57:29,045 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:57:29,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:57:29,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1256312553, now seen corresponding path program 1 times [2019-12-27 22:57:29,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:57:29,046 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638914849] [2019-12-27 22:57:29,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:57:29,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:57:29,124 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 22:57:29,125 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638914849] [2019-12-27 22:57:29,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:57:29,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:57:29,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [787087236] [2019-12-27 22:57:29,126 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:57:29,127 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:57:29,129 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 9 transitions. [2019-12-27 22:57:29,129 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:57:29,129 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:57:29,132 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:57:29,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:57:29,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:57:29,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:57:29,133 INFO L87 Difference]: Start difference. First operand 35 states and 61 transitions. Second operand 3 states. [2019-12-27 22:57:29,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:57:29,147 INFO L93 Difference]: Finished difference Result 39 states and 61 transitions. [2019-12-27 22:57:29,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:57:29,148 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 22:57:29,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:57:29,149 INFO L225 Difference]: With dead ends: 39 [2019-12-27 22:57:29,149 INFO L226 Difference]: Without dead ends: 29 [2019-12-27 22:57:29,149 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 [2019-12-27 22:57:29,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-27 22:57:29,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2019-12-27 22:57:29,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 22:57:29,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 41 transitions. [2019-12-27 22:57:29,154 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 41 transitions. Word has length 9 [2019-12-27 22:57:29,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:57:29,154 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 41 transitions. [2019-12-27 22:57:29,154 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:57:29,154 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2019-12-27 22:57:29,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:57:29,155 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:57:29,155 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:57:29,155 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:57:29,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:57:29,156 INFO L82 PathProgramCache]: Analyzing trace with hash 319734646, now seen corresponding path program 1 times [2019-12-27 22:57:29,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:57:29,156 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014396376] [2019-12-27 22:57:29,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:57:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:57:29,221 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 22:57:29,221 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014396376] [2019-12-27 22:57:29,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:57:29,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:57:29,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1229961139] [2019-12-27 22:57:29,222 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:57:29,223 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:57:29,225 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 14 transitions. [2019-12-27 22:57:29,225 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:57:29,225 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:57:29,225 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:57:29,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:57:29,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:57:29,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:57:29,226 INFO L87 Difference]: Start difference. First operand 28 states and 41 transitions. Second operand 3 states. [2019-12-27 22:57:29,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:57:29,232 INFO L93 Difference]: Finished difference Result 26 states and 38 transitions. [2019-12-27 22:57:29,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:57:29,234 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 22:57:29,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:57:29,234 INFO L225 Difference]: With dead ends: 26 [2019-12-27 22:57:29,234 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 22:57:29,235 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 [2019-12-27 22:57:29,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 22:57:29,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 22:57:29,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 22:57:29,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 22:57:29,236 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-12-27 22:57:29,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:57:29,236 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 22:57:29,236 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:57:29,236 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 22:57:29,236 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 22:57:29,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 10:57:29 BasicIcfg [2019-12-27 22:57:29,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 22:57:29,242 INFO L168 Benchmark]: Toolchain (without parser) took 3801.24 ms. Allocated memory was 138.9 MB in the beginning and 246.9 MB in the end (delta: 108.0 MB). Free memory was 102.3 MB in the beginning and 179.3 MB in the end (delta: -77.1 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. [2019-12-27 22:57:29,244 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 22:57:29,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.64 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.1 MB in the beginning and 161.1 MB in the end (delta: -59.1 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2019-12-27 22:57:29,245 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.59 ms. Allocated memory is still 202.9 MB. Free memory was 161.1 MB in the beginning and 158.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-27 22:57:29,246 INFO L168 Benchmark]: Boogie Preprocessor took 51.01 ms. Allocated memory is still 202.9 MB. Free memory was 158.5 MB in the beginning and 157.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 22:57:29,247 INFO L168 Benchmark]: RCFGBuilder took 471.38 ms. Allocated memory is still 202.9 MB. Free memory was 157.2 MB in the beginning and 137.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-27 22:57:29,248 INFO L168 Benchmark]: TraceAbstraction took 2484.77 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 137.1 MB in the beginning and 179.3 MB in the end (delta: -42.2 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 22:57:29,253 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 716.64 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.1 MB in the beginning and 161.1 MB in the end (delta: -59.1 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 71.59 ms. Allocated memory is still 202.9 MB. Free memory was 161.1 MB in the beginning and 158.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 51.01 ms. Allocated memory is still 202.9 MB. Free memory was 158.5 MB in the beginning and 157.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 471.38 ms. Allocated memory is still 202.9 MB. Free memory was 157.2 MB in the beginning and 137.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2484.77 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 137.1 MB in the beginning and 179.3 MB in the end (delta: -42.2 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 61 ProgramPointsBefore, 21 ProgramPointsAfterwards, 52 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 12 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 234 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 473 CheckedPairsTotal, 43 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, 52 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 13 SDslu, 32 SDs, 0 SdLazy, 21 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 438 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...