/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 17:22:58,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 17:22:58,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 17:22:58,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-21 17:22:58,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-21 17:22:58,355 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-21 17:22:58,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-21 17:22:58,363 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-21 17:22:58,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-21 17:22:58,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-21 17:22:58,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-21 17:22:58,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-21 17:22:58,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-21 17:22:58,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-21 17:22:58,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-21 17:22:58,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-21 17:22:58,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-21 17:22:58,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-21 17:22:58,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-21 17:22:58,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-21 17:22:58,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-21 17:22:58,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-21 17:22:58,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-21 17:22:58,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-21 17:22:58,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-05-21 17:22:58,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-05-21 17:22:58,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-05-21 17:22:58,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-05-21 17:22:58,400 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-05-21 17:22:58,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-05-21 17:22:58,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-21 17:22:58,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-21 17:22:58,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-21 17:22:58,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-21 17:22:58,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-21 17:22:58,406 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-21 17:22:58,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-21 17:22:58,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-21 17:22:58,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 17:22:58,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 17:22:58,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 17:22:58,408 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.epf [2021-05-21 17:22:58,445 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 17:22:58,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 17:22:58,446 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 17:22:58,446 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 17:22:58,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 17:22:58,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 17:22:58,449 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 17:22:58,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 17:22:58,449 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 17:22:58,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 17:22:58,450 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 17:22:58,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 17:22:58,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 17:22:58,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 17:22:58,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 17:22:58,451 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 17:22:58,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 17:22:58,451 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 17:22:58,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 17:22:58,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 17:22:58,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 17:22:58,452 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 17:22:58,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 17:22:58,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 17:22:58,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 17:22:58,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 17:22:58,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 17:22:58,452 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 17:22:58,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 17:22:58,453 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 17:22:58,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 17:22:58,453 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 17:22:58,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 17:22:58,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 17:22:58,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 17:22:58,802 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 17:22:58,802 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 17:22:58,803 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2021-05-21 17:22:58,871 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b5f5c5a0/c6768eec97de45a9a4ab34d0642dfd7c/FLAGbe91aefc3 [2021-05-21 17:22:59,446 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 17:22:59,446 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2021-05-21 17:22:59,457 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b5f5c5a0/c6768eec97de45a9a4ab34d0642dfd7c/FLAGbe91aefc3 [2021-05-21 17:22:59,857 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b5f5c5a0/c6768eec97de45a9a4ab34d0642dfd7c [2021-05-21 17:22:59,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 17:22:59,861 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 17:22:59,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 17:22:59,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 17:22:59,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 17:22:59,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 05:22:59" (1/1) ... [2021-05-21 17:22:59,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f33ebb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:22:59, skipping insertion in model container [2021-05-21 17:22:59,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 05:22:59" (1/1) ... [2021-05-21 17:22:59,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 17:22:59,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 17:23:00,085 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i[949,962] [2021-05-21 17:23:00,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 17:23:00,206 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 17:23:00,216 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i[949,962] [2021-05-21 17:23:00,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 17:23:00,292 INFO L208 MainTranslator]: Completed translation [2021-05-21 17:23:00,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:00 WrapperNode [2021-05-21 17:23:00,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 17:23:00,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 17:23:00,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 17:23:00,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 17:23:00,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:00" (1/1) ... [2021-05-21 17:23:00,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:00" (1/1) ... [2021-05-21 17:23:00,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 17:23:00,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 17:23:00,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 17:23:00,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 17:23:00,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:00" (1/1) ... [2021-05-21 17:23:00,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:00" (1/1) ... [2021-05-21 17:23:00,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:00" (1/1) ... [2021-05-21 17:23:00,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:00" (1/1) ... [2021-05-21 17:23:00,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:00" (1/1) ... [2021-05-21 17:23:00,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:00" (1/1) ... [2021-05-21 17:23:00,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:00" (1/1) ... [2021-05-21 17:23:00,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 17:23:00,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 17:23:00,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 17:23:00,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 17:23:00,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:00" (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 [2021-05-21 17:23:00,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 17:23:00,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-05-21 17:23:00,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 17:23:00,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 17:23:00,429 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-05-21 17:23:00,431 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-05-21 17:23:00,431 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-05-21 17:23:00,431 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-05-21 17:23:00,431 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-05-21 17:23:00,431 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-05-21 17:23:00,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 17:23:00,431 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-05-21 17:23:00,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 17:23:00,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 17:23:00,433 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 17:23:00,899 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 17:23:00,900 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-05-21 17:23:00,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 05:23:00 BoogieIcfgContainer [2021-05-21 17:23:00,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 17:23:00,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 17:23:00,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 17:23:00,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 17:23:00,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 05:22:59" (1/3) ... [2021-05-21 17:23:00,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62527e75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 05:23:00, skipping insertion in model container [2021-05-21 17:23:00,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:00" (2/3) ... [2021-05-21 17:23:00,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62527e75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 05:23:00, skipping insertion in model container [2021-05-21 17:23:00,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 05:23:00" (3/3) ... [2021-05-21 17:23:00,909 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_pso.opt.i [2021-05-21 17:23:00,915 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 17:23:00,915 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 17:23:00,915 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-21 17:23:00,916 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 17:23:00,946 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,947 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,947 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,947 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,947 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,947 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,949 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,950 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,951 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,951 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,951 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,951 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,952 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,952 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,952 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,952 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,953 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,953 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,954 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,954 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,958 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,959 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,959 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,960 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,961 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,961 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,961 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,961 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,961 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,962 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,962 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,963 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,963 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,963 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,963 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,963 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,966 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,966 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,966 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,966 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,971 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,971 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,971 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,971 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,973 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,973 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,973 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,973 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:00,977 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-05-21 17:23:00,997 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-05-21 17:23:01,027 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 17:23:01,027 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 17:23:01,027 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 17:23:01,027 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 17:23:01,028 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 17:23:01,028 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 17:23:01,028 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 17:23:01,028 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 17:23:01,043 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 85 transitions, 185 flow [2021-05-21 17:23:01,568 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9333 states, 9331 states have (on average 3.562104811917265) internal successors, (33238), 9332 states have internal predecessors, (33238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:01,611 INFO L276 IsEmpty]: Start isEmpty. Operand has 9333 states, 9331 states have (on average 3.562104811917265) internal successors, (33238), 9332 states have internal predecessors, (33238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:01,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-05-21 17:23:01,661 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:23:01,662 INFO L521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 17:23:01,662 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:23:01,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:23:01,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1408065288, now seen corresponding path program 1 times [2021-05-21 17:23:01,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:23:01,675 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224922986] [2021-05-21 17:23:01,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:23:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:23:02,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:23:02,034 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:23:02,034 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224922986] [2021-05-21 17:23:02,035 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224922986] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:23:02,035 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:23:02,035 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 17:23:02,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481100074] [2021-05-21 17:23:02,039 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 17:23:02,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:23:02,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 17:23:02,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 17:23:02,078 INFO L87 Difference]: Start difference. First operand has 9333 states, 9331 states have (on average 3.562104811917265) internal successors, (33238), 9332 states have internal predecessors, (33238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:02,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:23:02,395 INFO L93 Difference]: Finished difference Result 12224 states and 42408 transitions. [2021-05-21 17:23:02,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 17:23:02,396 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-05-21 17:23:02,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:23:02,437 INFO L225 Difference]: With dead ends: 12224 [2021-05-21 17:23:02,437 INFO L226 Difference]: Without dead ends: 4629 [2021-05-21 17:23:02,439 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 125.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 17:23:02,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4629 states. [2021-05-21 17:23:02,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4629 to 4629. [2021-05-21 17:23:02,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4629 states, 4628 states have (on average 3.3854796888504755) internal successors, (15668), 4628 states have internal predecessors, (15668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:02,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4629 states to 4629 states and 15668 transitions. [2021-05-21 17:23:02,741 INFO L78 Accepts]: Start accepts. Automaton has 4629 states and 15668 transitions. Word has length 50 [2021-05-21 17:23:02,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:23:02,744 INFO L482 AbstractCegarLoop]: Abstraction has 4629 states and 15668 transitions. [2021-05-21 17:23:02,745 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:02,745 INFO L276 IsEmpty]: Start isEmpty. Operand 4629 states and 15668 transitions. [2021-05-21 17:23:02,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-05-21 17:23:02,754 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:23:02,754 INFO L521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 17:23:02,754 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 17:23:02,755 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:23:02,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:23:02,755 INFO L82 PathProgramCache]: Analyzing trace with hash 763919409, now seen corresponding path program 1 times [2021-05-21 17:23:02,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:23:02,756 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748133448] [2021-05-21 17:23:02,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:23:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:23:02,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:23:02,864 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:23:02,864 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748133448] [2021-05-21 17:23:02,864 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748133448] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:23:02,864 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:23:02,864 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 17:23:02,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864901172] [2021-05-21 17:23:02,865 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 17:23:02,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:23:02,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 17:23:02,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 17:23:02,867 INFO L87 Difference]: Start difference. First operand 4629 states and 15668 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:03,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:23:03,076 INFO L93 Difference]: Finished difference Result 5189 states and 17401 transitions. [2021-05-21 17:23:03,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 17:23:03,077 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-05-21 17:23:03,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:23:03,102 INFO L225 Difference]: With dead ends: 5189 [2021-05-21 17:23:03,102 INFO L226 Difference]: Without dead ends: 4209 [2021-05-21 17:23:03,103 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 158.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 17:23:03,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4209 states. [2021-05-21 17:23:03,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4209 to 4209. [2021-05-21 17:23:03,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4209 states, 4208 states have (on average 3.3583650190114067) internal successors, (14132), 4208 states have internal predecessors, (14132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:03,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4209 states to 4209 states and 14132 transitions. [2021-05-21 17:23:03,264 INFO L78 Accepts]: Start accepts. Automaton has 4209 states and 14132 transitions. Word has length 52 [2021-05-21 17:23:03,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:23:03,265 INFO L482 AbstractCegarLoop]: Abstraction has 4209 states and 14132 transitions. [2021-05-21 17:23:03,265 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:03,266 INFO L276 IsEmpty]: Start isEmpty. Operand 4209 states and 14132 transitions. [2021-05-21 17:23:03,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-05-21 17:23:03,277 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:23:03,277 INFO L521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 17:23:03,277 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 17:23:03,277 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:23:03,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:23:03,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1544842766, now seen corresponding path program 1 times [2021-05-21 17:23:03,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:23:03,279 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127840177] [2021-05-21 17:23:03,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:23:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:23:03,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:23:03,446 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:23:03,446 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127840177] [2021-05-21 17:23:03,446 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127840177] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:23:03,446 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:23:03,446 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:23:03,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647018234] [2021-05-21 17:23:03,447 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:23:03,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:23:03,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:23:03,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:23:03,450 INFO L87 Difference]: Start difference. First operand 4209 states and 14132 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:03,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:23:03,634 INFO L93 Difference]: Finished difference Result 5719 states and 18965 transitions. [2021-05-21 17:23:03,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 17:23:03,673 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-05-21 17:23:03,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:23:03,689 INFO L225 Difference]: With dead ends: 5719 [2021-05-21 17:23:03,689 INFO L226 Difference]: Without dead ends: 2814 [2021-05-21 17:23:03,690 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 154.4ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-05-21 17:23:03,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2814 states. [2021-05-21 17:23:03,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2814 to 2814. [2021-05-21 17:23:03,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2814 states, 2813 states have (on average 3.2214717383576255) internal successors, (9062), 2813 states have internal predecessors, (9062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:03,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2814 states to 2814 states and 9062 transitions. [2021-05-21 17:23:03,765 INFO L78 Accepts]: Start accepts. Automaton has 2814 states and 9062 transitions. Word has length 54 [2021-05-21 17:23:03,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:23:03,767 INFO L482 AbstractCegarLoop]: Abstraction has 2814 states and 9062 transitions. [2021-05-21 17:23:03,767 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:03,767 INFO L276 IsEmpty]: Start isEmpty. Operand 2814 states and 9062 transitions. [2021-05-21 17:23:03,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-05-21 17:23:03,773 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:23:03,773 INFO L521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 17:23:03,774 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 17:23:03,774 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:23:03,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:23:03,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1023548365, now seen corresponding path program 1 times [2021-05-21 17:23:03,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:23:03,775 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789894864] [2021-05-21 17:23:03,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:23:03,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:23:03,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:23:03,917 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:23:03,917 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789894864] [2021-05-21 17:23:03,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789894864] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:23:03,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:23:03,917 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:23:03,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819245552] [2021-05-21 17:23:03,918 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:23:03,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:23:03,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:23:03,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:23:03,924 INFO L87 Difference]: Start difference. First operand 2814 states and 9062 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:04,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:23:04,174 INFO L93 Difference]: Finished difference Result 4414 states and 14332 transitions. [2021-05-21 17:23:04,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 17:23:04,175 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-05-21 17:23:04,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:23:04,206 INFO L225 Difference]: With dead ends: 4414 [2021-05-21 17:23:04,206 INFO L226 Difference]: Without dead ends: 3214 [2021-05-21 17:23:04,207 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 224.4ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-05-21 17:23:04,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3214 states. [2021-05-21 17:23:04,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3214 to 2814. [2021-05-21 17:23:04,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2814 states, 2813 states have (on average 3.210095982936367) internal successors, (9030), 2813 states have internal predecessors, (9030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:04,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2814 states to 2814 states and 9030 transitions. [2021-05-21 17:23:04,290 INFO L78 Accepts]: Start accepts. Automaton has 2814 states and 9030 transitions. Word has length 57 [2021-05-21 17:23:04,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:23:04,292 INFO L482 AbstractCegarLoop]: Abstraction has 2814 states and 9030 transitions. [2021-05-21 17:23:04,292 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:04,292 INFO L276 IsEmpty]: Start isEmpty. Operand 2814 states and 9030 transitions. [2021-05-21 17:23:04,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-05-21 17:23:04,300 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:23:04,300 INFO L521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 17:23:04,301 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 17:23:04,303 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:23:04,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:23:04,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1268655147, now seen corresponding path program 2 times [2021-05-21 17:23:04,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:23:04,305 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210907851] [2021-05-21 17:23:04,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:23:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:23:04,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:23:04,416 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:23:04,416 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210907851] [2021-05-21 17:23:04,417 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210907851] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:23:04,417 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:23:04,417 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:23:04,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661171226] [2021-05-21 17:23:04,418 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:23:04,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:23:04,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:23:04,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:23:04,419 INFO L87 Difference]: Start difference. First operand 2814 states and 9030 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:04,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:23:04,585 INFO L93 Difference]: Finished difference Result 3734 states and 11976 transitions. [2021-05-21 17:23:04,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 17:23:04,586 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-05-21 17:23:04,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:23:04,593 INFO L225 Difference]: With dead ends: 3734 [2021-05-21 17:23:04,594 INFO L226 Difference]: Without dead ends: 1974 [2021-05-21 17:23:04,594 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 162.7ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-05-21 17:23:04,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2021-05-21 17:23:04,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1974. [2021-05-21 17:23:04,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1974 states, 1973 states have (on average 3.084642676127724) internal successors, (6086), 1973 states have internal predecessors, (6086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:04,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 6086 transitions. [2021-05-21 17:23:04,692 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 6086 transitions. Word has length 57 [2021-05-21 17:23:04,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:23:04,692 INFO L482 AbstractCegarLoop]: Abstraction has 1974 states and 6086 transitions. [2021-05-21 17:23:04,693 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:04,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 6086 transitions. [2021-05-21 17:23:04,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-05-21 17:23:04,697 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:23:04,697 INFO L521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 17:23:04,697 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 17:23:04,697 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:23:04,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:23:04,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1283773141, now seen corresponding path program 1 times [2021-05-21 17:23:04,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:23:04,698 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355772695] [2021-05-21 17:23:04,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:23:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:23:04,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:23:04,792 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:23:04,792 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355772695] [2021-05-21 17:23:04,792 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355772695] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:23:04,792 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:23:04,792 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:23:04,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107300476] [2021-05-21 17:23:04,793 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:23:04,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:23:04,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:23:04,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:23:04,793 INFO L87 Difference]: Start difference. First operand 1974 states and 6086 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:04,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:23:04,907 INFO L93 Difference]: Finished difference Result 1814 states and 5558 transitions. [2021-05-21 17:23:04,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 17:23:04,907 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-05-21 17:23:04,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:23:04,907 INFO L225 Difference]: With dead ends: 1814 [2021-05-21 17:23:04,907 INFO L226 Difference]: Without dead ends: 0 [2021-05-21 17:23:04,908 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 119.6ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-05-21 17:23:04,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-21 17:23:04,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-21 17:23:04,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:04,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-21 17:23:04,908 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-05-21 17:23:04,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:23:04,909 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-21 17:23:04,909 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:04,909 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-21 17:23:04,909 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 17:23:04,909 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-21 17:23:04,911 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 17:23:04,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 05:23:04 BasicIcfg [2021-05-21 17:23:04,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 17:23:04,914 INFO L168 Benchmark]: Toolchain (without parser) took 5053.05 ms. Allocated memory was 356.5 MB in the beginning and 847.2 MB in the end (delta: 490.7 MB). Free memory was 318.5 MB in the beginning and 667.4 MB in the end (delta: -348.8 MB). Peak memory consumption was 143.3 MB. Max. memory is 16.0 GB. [2021-05-21 17:23:04,914 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 356.5 MB. Free memory was 336.8 MB in the beginning and 336.7 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 17:23:04,915 INFO L168 Benchmark]: CACSL2BoogieTranslator took 430.01 ms. Allocated memory is still 356.5 MB. Free memory was 318.3 MB in the beginning and 318.4 MB in the end (delta: -106.8 kB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. [2021-05-21 17:23:04,915 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.90 ms. Allocated memory is still 356.5 MB. Free memory was 318.4 MB in the beginning and 316.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 17:23:04,915 INFO L168 Benchmark]: Boogie Preprocessor took 18.50 ms. Allocated memory is still 356.5 MB. Free memory was 316.3 MB in the beginning and 315.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 17:23:04,916 INFO L168 Benchmark]: RCFGBuilder took 556.41 ms. Allocated memory is still 356.5 MB. Free memory was 315.3 MB in the beginning and 289.1 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-05-21 17:23:04,916 INFO L168 Benchmark]: TraceAbstraction took 4009.69 ms. Allocated memory was 356.5 MB in the beginning and 847.2 MB in the end (delta: 490.7 MB). Free memory was 289.1 MB in the beginning and 667.4 MB in the end (delta: -378.3 MB). Peak memory consumption was 115.6 MB. Max. memory is 16.0 GB. [2021-05-21 17:23:04,918 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 356.5 MB. Free memory was 336.8 MB in the beginning and 336.7 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 430.01 ms. Allocated memory is still 356.5 MB. Free memory was 318.3 MB in the beginning and 318.4 MB in the end (delta: -106.8 kB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 32.90 ms. Allocated memory is still 356.5 MB. Free memory was 318.4 MB in the beginning and 316.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.50 ms. Allocated memory is still 356.5 MB. Free memory was 316.3 MB in the beginning and 315.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 556.41 ms. Allocated memory is still 356.5 MB. Free memory was 315.3 MB in the beginning and 289.1 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4009.69 ms. Allocated memory was 356.5 MB in the beginning and 847.2 MB in the end (delta: 490.7 MB). Free memory was 289.1 MB in the beginning and 667.4 MB in the end (delta: -378.3 MB). Peak memory consumption was 115.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3885.6ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 129.7ms, AutomataDifference: 1456.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 540.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 643 SDtfs, 889 SDslu, 2071 SDs, 0 SdLazy, 152 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 146.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 945.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9333occurred in iteration=0, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 709.5ms AutomataMinimizationTime, 6 MinimizatonAttempts, 400 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 26.6ms SsaConstructionTime, 179.9ms SatisfiabilityAnalysisTime, 663.1ms InterpolantComputationTime, 328 NumberOfCodeBlocks, 328 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 322 ConstructedInterpolants, 0 QuantifiedInterpolants, 958 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...