/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 05:29:51,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 05:29:51,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 05:29:51,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 05:29:51,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 05:29:51,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 05:29:51,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 05:29:51,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 05:29:51,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 05:29:51,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 05:29:51,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 05:29:51,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 05:29:51,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 05:29:51,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 05:29:51,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 05:29:51,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 05:29:51,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 05:29:51,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 05:29:51,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 05:29:51,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 05:29:51,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 05:29:51,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 05:29:51,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 05:29:51,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 05:29:51,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-28 05:29:51,225 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-28 05:29:51,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-28 05:29:51,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-28 05:29:51,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-28 05:29:51,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-28 05:29:51,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 05:29:51,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 05:29:51,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 05:29:51,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 05:29:51,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 05:29:51,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 05:29:51,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 05:29:51,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 05:29:51,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 05:29:51,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 05:29:51,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 05:29:51,238 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf [2019-12-28 05:29:51,267 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 05:29:51,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 05:29:51,268 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 05:29:51,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 05:29:51,270 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 05:29:51,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 05:29:51,271 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 05:29:51,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 05:29:51,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 05:29:51,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 05:29:51,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 05:29:51,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 05:29:51,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 05:29:51,273 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 05:29:51,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 05:29:51,273 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 05:29:51,274 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 05:29:51,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 05:29:51,274 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 05:29:51,274 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 05:29:51,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 05:29:51,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:29:51,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 05:29:51,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 05:29:51,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 05:29:51,275 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 05:29:51,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 05:29:51,276 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 05:29:51,276 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 05:29:51,276 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 05:29:51,277 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 05:29:51,277 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 05:29:51,557 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 05:29:51,575 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 05:29:51,578 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 05:29:51,579 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 05:29:51,580 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 05:29:51,580 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i [2019-12-28 05:29:51,656 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b27d00f2/a3b8fbb7dbde4ebebf6319264848dc6b/FLAG5c85c8156 [2019-12-28 05:29:52,141 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 05:29:52,144 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i [2019-12-28 05:29:52,164 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b27d00f2/a3b8fbb7dbde4ebebf6319264848dc6b/FLAG5c85c8156 [2019-12-28 05:29:52,470 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b27d00f2/a3b8fbb7dbde4ebebf6319264848dc6b [2019-12-28 05:29:52,478 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 05:29:52,480 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 05:29:52,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 05:29:52,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 05:29:52,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 05:29:52,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:29:52" (1/1) ... [2019-12-28 05:29:52,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cd32435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:52, skipping insertion in model container [2019-12-28 05:29:52,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:29:52" (1/1) ... [2019-12-28 05:29:52,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 05:29:52,549 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 05:29:53,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:29:53,072 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 05:29:53,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:29:53,219 INFO L208 MainTranslator]: Completed translation [2019-12-28 05:29:53,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:53 WrapperNode [2019-12-28 05:29:53,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 05:29:53,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 05:29:53,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 05:29:53,222 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 05:29:53,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:53" (1/1) ... [2019-12-28 05:29:53,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:53" (1/1) ... [2019-12-28 05:29:53,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 05:29:53,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 05:29:53,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 05:29:53,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 05:29:53,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:53" (1/1) ... [2019-12-28 05:29:53,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:53" (1/1) ... [2019-12-28 05:29:53,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:53" (1/1) ... [2019-12-28 05:29:53,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:53" (1/1) ... [2019-12-28 05:29:53,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:53" (1/1) ... [2019-12-28 05:29:53,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:53" (1/1) ... [2019-12-28 05:29:53,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:53" (1/1) ... [2019-12-28 05:29:53,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 05:29:53,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 05:29:53,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 05:29:53,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 05:29:53,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:29:53,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 05:29:53,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 05:29:53,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 05:29:53,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 05:29:53,429 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 05:29:53,429 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 05:29:53,429 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 05:29:53,429 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 05:29:53,429 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-28 05:29:53,430 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-28 05:29:53,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 05:29:53,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 05:29:53,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 05:29:53,432 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 05:29:53,776 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 05:29:53,777 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 05:29:53,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:29:53 BoogieIcfgContainer [2019-12-28 05:29:53,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 05:29:53,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 05:29:53,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 05:29:53,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 05:29:53,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:29:52" (1/3) ... [2019-12-28 05:29:53,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d5c131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:29:53, skipping insertion in model container [2019-12-28 05:29:53,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:53" (2/3) ... [2019-12-28 05:29:53,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d5c131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:29:53, skipping insertion in model container [2019-12-28 05:29:53,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:29:53" (3/3) ... [2019-12-28 05:29:53,788 INFO L109 eAbstractionObserver]: Analyzing ICFG safe034_tso.opt.i [2019-12-28 05:29:53,799 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 05:29:53,799 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 05:29:53,807 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 05:29:53,808 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 05:29:53,837 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,838 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,838 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,838 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,839 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,839 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,839 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,840 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,840 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,840 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,840 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,841 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,841 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,841 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,842 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,842 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,842 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,842 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,846 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,847 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,847 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,847 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,853 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,854 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,854 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,854 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,857 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,858 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,858 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,858 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:53,875 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-28 05:29:53,896 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:29:53,896 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:29:53,897 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:29:53,897 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:29:53,897 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:29:53,897 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:29:53,897 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:29:53,898 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:29:53,910 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-28 05:29:53,978 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-28 05:29:53,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-28 05:29:53,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-28 05:29:53,996 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:29:53,997 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:29:53,998 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:29:54,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:29:54,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1045891057, now seen corresponding path program 1 times [2019-12-28 05:29:54,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:29:54,016 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688649356] [2019-12-28 05:29:54,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:29:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:29:54,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:29:54,425 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688649356] [2019-12-28 05:29:54,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:29:54,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 05:29:54,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [706399908] [2019-12-28 05:29:54,429 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:29:54,444 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:29:54,475 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 32 states and 31 transitions. [2019-12-28 05:29:54,476 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:29:54,482 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:29:54,483 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 05:29:54,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:29:54,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 05:29:54,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 05:29:54,503 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-28 05:29:54,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:29:54,662 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-28 05:29:54,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 05:29:54,664 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-28 05:29:54,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:29:54,689 INFO L225 Difference]: With dead ends: 1295 [2019-12-28 05:29:54,689 INFO L226 Difference]: Without dead ends: 601 [2019-12-28 05:29:54,692 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:29:54,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-28 05:29:54,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-28 05:29:54,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-28 05:29:54,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-28 05:29:54,807 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-28 05:29:54,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:29:54,808 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-28 05:29:54,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 05:29:54,809 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-28 05:29:54,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-28 05:29:54,818 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:29:54,819 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:29:54,819 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:29:54,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:29:54,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1152838682, now seen corresponding path program 1 times [2019-12-28 05:29:54,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:29:54,821 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229376227] [2019-12-28 05:29:54,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:29:54,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:29:54,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:29:54,977 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229376227] [2019-12-28 05:29:54,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:29:54,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 05:29:54,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1160542583] [2019-12-28 05:29:54,979 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:29:54,984 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:29:54,989 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 37 states and 40 transitions. [2019-12-28 05:29:54,989 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:29:54,991 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:29:55,001 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 05:29:55,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:29:55,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 05:29:55,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:29:55,004 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-28 05:29:55,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:29:55,087 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-28 05:29:55,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 05:29:55,088 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-28 05:29:55,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:29:55,097 INFO L225 Difference]: With dead ends: 601 [2019-12-28 05:29:55,098 INFO L226 Difference]: Without dead ends: 538 [2019-12-28 05:29:55,099 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:29:55,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-28 05:29:55,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-28 05:29:55,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-28 05:29:55,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-28 05:29:55,156 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-28 05:29:55,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:29:55,156 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-28 05:29:55,156 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 05:29:55,157 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-28 05:29:55,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-28 05:29:55,159 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:29:55,159 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:29:55,159 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:29:55,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:29:55,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1131850048, now seen corresponding path program 1 times [2019-12-28 05:29:55,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:29:55,160 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560333775] [2019-12-28 05:29:55,160 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:29:55,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:29:55,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:29:55,332 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560333775] [2019-12-28 05:29:55,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:29:55,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 05:29:55,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [954579719] [2019-12-28 05:29:55,332 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:29:55,338 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:29:55,342 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 38 states and 41 transitions. [2019-12-28 05:29:55,342 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:29:55,343 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:29:55,343 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 05:29:55,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:29:55,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 05:29:55,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 05:29:55,344 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-28 05:29:55,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:29:55,439 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-28 05:29:55,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:29:55,440 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-28 05:29:55,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:29:55,443 INFO L225 Difference]: With dead ends: 403 [2019-12-28 05:29:55,443 INFO L226 Difference]: Without dead ends: 349 [2019-12-28 05:29:55,443 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-28 05:29:55,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-28 05:29:55,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-28 05:29:55,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-28 05:29:55,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-28 05:29:55,455 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-28 05:29:55,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:29:55,455 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-28 05:29:55,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 05:29:55,456 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-28 05:29:55,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 05:29:55,457 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:29:55,457 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:29:55,458 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:29:55,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:29:55,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1370796524, now seen corresponding path program 1 times [2019-12-28 05:29:55,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:29:55,459 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26115074] [2019-12-28 05:29:55,459 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:29:55,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:29:55,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:29:55,622 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26115074] [2019-12-28 05:29:55,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:29:55,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:29:55,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2001360521] [2019-12-28 05:29:55,623 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:29:55,630 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:29:55,641 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 39 states and 42 transitions. [2019-12-28 05:29:55,641 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:29:55,642 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:29:55,642 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:29:55,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:29:55,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:29:55,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:29:55,643 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-28 05:29:55,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:29:55,825 INFO L93 Difference]: Finished difference Result 574 states and 1521 transitions. [2019-12-28 05:29:55,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 05:29:55,827 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-28 05:29:55,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:29:55,829 INFO L225 Difference]: With dead ends: 574 [2019-12-28 05:29:55,830 INFO L226 Difference]: Without dead ends: 289 [2019-12-28 05:29:55,830 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-28 05:29:55,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2019-12-28 05:29:55,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 280. [2019-12-28 05:29:55,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2019-12-28 05:29:55,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 726 transitions. [2019-12-28 05:29:55,855 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 726 transitions. Word has length 34 [2019-12-28 05:29:55,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:29:55,855 INFO L462 AbstractCegarLoop]: Abstraction has 280 states and 726 transitions. [2019-12-28 05:29:55,855 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:29:55,856 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 726 transitions. [2019-12-28 05:29:55,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 05:29:55,857 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:29:55,857 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:29:55,857 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:29:55,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:29:55,857 INFO L82 PathProgramCache]: Analyzing trace with hash 332629140, now seen corresponding path program 2 times [2019-12-28 05:29:55,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:29:55,858 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914309781] [2019-12-28 05:29:55,858 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:29:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:29:56,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:29:56,014 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914309781] [2019-12-28 05:29:56,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:29:56,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:29:56,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [803385951] [2019-12-28 05:29:56,015 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:29:56,018 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:29:56,023 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 35 states and 34 transitions. [2019-12-28 05:29:56,023 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:29:56,024 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:29:56,024 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:29:56,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:29:56,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:29:56,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:29:56,025 INFO L87 Difference]: Start difference. First operand 280 states and 726 transitions. Second operand 7 states. [2019-12-28 05:29:56,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:29:56,171 INFO L93 Difference]: Finished difference Result 235 states and 585 transitions. [2019-12-28 05:29:56,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 05:29:56,171 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-28 05:29:56,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:29:56,172 INFO L225 Difference]: With dead ends: 235 [2019-12-28 05:29:56,172 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 05:29:56,173 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-28 05:29:56,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 05:29:56,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 05:29:56,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 05:29:56,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 05:29:56,174 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-28 05:29:56,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:29:56,174 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 05:29:56,174 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:29:56,174 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 05:29:56,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 05:29:56,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 05:29:56 BasicIcfg [2019-12-28 05:29:56,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 05:29:56,183 INFO L168 Benchmark]: Toolchain (without parser) took 3701.80 ms. Allocated memory was 144.7 MB in the beginning and 251.1 MB in the end (delta: 106.4 MB). Free memory was 99.9 MB in the beginning and 172.0 MB in the end (delta: -72.1 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2019-12-28 05:29:56,184 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-28 05:29:56,185 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.84 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 99.7 MB in the beginning and 158.7 MB in the end (delta: -59.1 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-28 05:29:56,186 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.31 ms. Allocated memory is still 201.9 MB. Free memory was 158.7 MB in the beginning and 156.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-28 05:29:56,186 INFO L168 Benchmark]: Boogie Preprocessor took 57.29 ms. Allocated memory is still 201.9 MB. Free memory was 156.7 MB in the beginning and 155.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-28 05:29:56,187 INFO L168 Benchmark]: RCFGBuilder took 414.64 ms. Allocated memory is still 201.9 MB. Free memory was 155.4 MB in the beginning and 134.5 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2019-12-28 05:29:56,188 INFO L168 Benchmark]: TraceAbstraction took 2400.15 ms. Allocated memory was 201.9 MB in the beginning and 251.1 MB in the end (delta: 49.3 MB). Free memory was 134.5 MB in the beginning and 172.0 MB in the end (delta: -37.4 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2019-12-28 05:29:56,192 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 738.84 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 99.7 MB in the beginning and 158.7 MB in the end (delta: -59.1 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 86.31 ms. Allocated memory is still 201.9 MB. Free memory was 158.7 MB in the beginning and 156.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 57.29 ms. Allocated memory is still 201.9 MB. Free memory was 156.7 MB in the beginning and 155.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 414.64 ms. Allocated memory is still 201.9 MB. Free memory was 155.4 MB in the beginning and 134.5 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2400.15 ms. Allocated memory was 201.9 MB in the beginning and 251.1 MB in the end (delta: 49.3 MB). Free memory was 134.5 MB in the beginning and 172.0 MB in the end (delta: -37.4 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 246 SDtfs, 324 SDslu, 613 SDs, 0 SdLazy, 92 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 14313 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...