/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-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/08-abort-before-end.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 23:46:14,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 23:46:14,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 23:46:14,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 23:46:14,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 23:46:14,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 23:46:14,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 23:46:14,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 23:46:14,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 23:46:14,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 23:46:14,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 23:46:14,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 23:46:14,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 23:46:14,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 23:46:14,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 23:46:14,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 23:46:14,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 23:46:14,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 23:46:14,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 23:46:14,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 23:46:14,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 23:46:14,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 23:46:14,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 23:46:14,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 23:46:14,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-10 23:46:14,483 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-10 23:46:14,483 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-10 23:46:14,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-10 23:46:14,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-10 23:46:14,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-10 23:46:14,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 23:46:14,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 23:46:14,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 23:46:14,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 23:46:14,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 23:46:14,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 23:46:14,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 23:46:14,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 23:46:14,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 23:46:14,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 23:46:14,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 23:46:14,496 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-PN-SemanticLbe.epf [2021-06-10 23:46:14,531 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 23:46:14,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 23:46:14,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 23:46:14,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 23:46:14,534 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 23:46:14,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 23:46:14,535 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 23:46:14,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 23:46:14,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 23:46:14,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 23:46:14,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 23:46:14,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 23:46:14,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 23:46:14,536 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 23:46:14,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 23:46:14,536 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 23:46:14,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 23:46:14,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 23:46:14,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 23:46:14,537 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 23:46:14,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 23:46:14,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 23:46:14,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 23:46:14,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 23:46:14,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 23:46:14,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 23:46:14,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 23:46:14,538 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 23:46:14,538 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 23:46:14,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 23:46:14,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 23:46:14,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 23:46:14,834 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 23:46:14,845 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 23:46:14,845 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/08-abort-before-end.c [2021-06-10 23:46:14,892 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4063d728/71fadd3aecd24449be8f6bd78ed07d2e/FLAGad904b0a4 [2021-06-10 23:46:15,240 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 23:46:15,242 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/08-abort-before-end.c [2021-06-10 23:46:15,242 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-10 23:46:15,272 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4063d728/71fadd3aecd24449be8f6bd78ed07d2e/FLAGad904b0a4 [2021-06-10 23:46:15,655 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4063d728/71fadd3aecd24449be8f6bd78ed07d2e [2021-06-10 23:46:15,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 23:46:15,659 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 23:46:15,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 23:46:15,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 23:46:15,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 23:46:15,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 11:46:15" (1/1) ... [2021-06-10 23:46:15,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e224178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:46:15, skipping insertion in model container [2021-06-10 23:46:15,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 11:46:15" (1/1) ... [2021-06-10 23:46:15,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 23:46:15,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 23:46:15,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 23:46:15,874 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 23:46:15,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 23:46:15,893 INFO L208 MainTranslator]: Completed translation [2021-06-10 23:46:15,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:46:15 WrapperNode [2021-06-10 23:46:15,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 23:46:15,894 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 23:46:15,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 23:46:15,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 23:46:15,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:46:15" (1/1) ... [2021-06-10 23:46:15,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:46:15" (1/1) ... [2021-06-10 23:46:15,916 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 23:46:15,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 23:46:15,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 23:46:15,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 23:46:15,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:46:15" (1/1) ... [2021-06-10 23:46:15,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:46:15" (1/1) ... [2021-06-10 23:46:15,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:46:15" (1/1) ... [2021-06-10 23:46:15,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:46:15" (1/1) ... [2021-06-10 23:46:15,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:46:15" (1/1) ... [2021-06-10 23:46:15,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:46:15" (1/1) ... [2021-06-10 23:46:15,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:46:15" (1/1) ... [2021-06-10 23:46:15,929 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 23:46:15,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 23:46:15,930 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 23:46:15,930 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 23:46:15,931 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:46:15" (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 [2021-06-10 23:46:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 23:46:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-10 23:46:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-10 23:46:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-10 23:46:15,999 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-10 23:46:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 23:46:15,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 23:46:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 23:46:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 23:46:16,001 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-10 23:46:16,264 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 23:46:16,264 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-10 23:46:16,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 11:46:16 BoogieIcfgContainer [2021-06-10 23:46:16,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 23:46:16,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 23:46:16,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 23:46:16,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 23:46:16,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 11:46:15" (1/3) ... [2021-06-10 23:46:16,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632b3530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 11:46:16, skipping insertion in model container [2021-06-10 23:46:16,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:46:15" (2/3) ... [2021-06-10 23:46:16,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632b3530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 11:46:16, skipping insertion in model container [2021-06-10 23:46:16,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 11:46:16" (3/3) ... [2021-06-10 23:46:16,272 INFO L111 eAbstractionObserver]: Analyzing ICFG 08-abort-before-end.c [2021-06-10 23:46:16,284 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 23:46:16,288 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-10 23:46:16,289 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 23:46:16,310 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:46:16,310 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:46:16,310 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:46:16,310 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:46:16,310 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:46:16,311 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:46:16,311 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:46:16,311 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:46:16,313 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:46:16,314 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:46:16,314 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:46:16,314 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:46:16,317 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:46:16,318 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:46:16,318 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:46:16,318 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 23:46:16,322 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-10 23:46:16,338 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-10 23:46:16,365 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 23:46:16,365 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 23:46:16,366 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 23:46:16,366 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 23:46:16,366 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 23:46:16,366 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 23:46:16,366 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 23:46:16,366 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 23:46:16,374 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 51 flow [2021-06-10 23:46:16,407 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-06-10 23:46:16,407 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:46:16,409 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-10 23:46:16,410 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 23 transitions, 51 flow [2021-06-10 23:46:16,415 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 21 places, 17 transitions, 37 flow [2021-06-10 23:46:16,416 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-10 23:46:16,427 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 17 transitions, 37 flow [2021-06-10 23:46:16,430 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 17 transitions, 37 flow [2021-06-10 23:46:16,431 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 21 places, 17 transitions, 37 flow [2021-06-10 23:46:16,436 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-06-10 23:46:16,436 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:46:16,436 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-10 23:46:16,437 INFO L151 LiptonReduction]: Number of co-enabled transitions 24 [2021-06-10 23:46:16,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:46:16,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 23:46:16,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:46:16,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 23:46:16,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:46:16,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 23:46:16,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:46:16,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 23:46:16,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:46:16,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 23:46:16,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:46:16,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 23:46:16,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:46:17,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 23:46:17,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:46:17,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 23:46:17,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 23:46:17,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:46:17,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 23:46:17,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:46:17,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:46:17,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:46:17,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 23:46:17,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:46:17,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 23:46:17,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 23:46:17,431 INFO L163 LiptonReduction]: Checked pairs total: 18 [2021-06-10 23:46:17,431 INFO L165 LiptonReduction]: Total number of compositions: 13 [2021-06-10 23:46:17,433 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1018 [2021-06-10 23:46:17,438 INFO L129 PetriNetUnfolder]: 0/3 cut-off events. [2021-06-10 23:46:17,438 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:46:17,439 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 23:46:17,439 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-06-10 23:46:17,439 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 23:46:17,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 23:46:17,443 INFO L82 PathProgramCache]: Analyzing trace with hash 104854, now seen corresponding path program 1 times [2021-06-10 23:46:17,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 23:46:17,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426709118] [2021-06-10 23:46:17,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 23:46:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 23:46:17,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:46:17,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:46:17,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 23:46:17,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426709118] [2021-06-10 23:46:17,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 23:46:17,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-10 23:46:17,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404972351] [2021-06-10 23:46:17,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 23:46:17,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 23:46:17,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 23:46:17,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 23:46:17,568 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 36 [2021-06-10 23:46:17,569 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 9 places, 5 transitions, 13 flow. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2021-06-10 23:46:17,569 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 23:46:17,569 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 36 [2021-06-10 23:46:17,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 23:46:17,581 INFO L129 PetriNetUnfolder]: 0/5 cut-off events. [2021-06-10 23:46:17,581 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 23:46:17,581 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13 conditions, 5 events. 0/5 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 1/6 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-06-10 23:46:17,582 INFO L132 encePairwiseOnDemand]: 33/36 looper letters, 1 selfloop transitions, 2 changer transitions 1/5 dead transitions. [2021-06-10 23:46:17,582 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 11 places, 5 transitions, 19 flow [2021-06-10 23:46:17,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 23:46:17,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 23:46:17,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 79 transitions. [2021-06-10 23:46:17,591 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7314814814814815 [2021-06-10 23:46:17,592 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 79 transitions. [2021-06-10 23:46:17,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 79 transitions. [2021-06-10 23:46:17,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 23:46:17,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 79 transitions. [2021-06-10 23:46:17,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-06-10 23:46:17,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2021-06-10 23:46:17,599 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2021-06-10 23:46:17,600 INFO L185 Difference]: Start difference. First operand has 9 places, 5 transitions, 13 flow. Second operand 3 states and 79 transitions. [2021-06-10 23:46:17,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 11 places, 5 transitions, 19 flow [2021-06-10 23:46:17,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 5 transitions, 18 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-10 23:46:17,603 INFO L241 Difference]: Finished difference. Result has 11 places, 4 transitions, 18 flow [2021-06-10 23:46:17,605 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=12, PETRI_DIFFERENCE_MINUEND_PLACES=8, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=18, PETRI_PLACES=11, PETRI_TRANSITIONS=4} [2021-06-10 23:46:17,606 INFO L343 CegarLoopForPetriNet]: 9 programPoint places, 2 predicate places. [2021-06-10 23:46:17,606 INFO L480 AbstractCegarLoop]: Abstraction has has 11 places, 4 transitions, 18 flow [2021-06-10 23:46:17,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2021-06-10 23:46:17,606 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 23:46:17,606 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-06-10 23:46:17,606 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 23:46:17,606 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 23:46:17,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 23:46:17,607 INFO L82 PathProgramCache]: Analyzing trace with hash 3250517, now seen corresponding path program 1 times [2021-06-10 23:46:17,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 23:46:17,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417079525] [2021-06-10 23:46:17,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 23:46:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 23:46:17,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:46:17,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 23:46:17,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 23:46:17,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 23:46:17,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 23:46:17,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417079525] [2021-06-10 23:46:17,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 23:46:17,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 23:46:17,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589721045] [2021-06-10 23:46:17,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 23:46:17,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 23:46:17,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 23:46:17,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 23:46:17,644 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 36 [2021-06-10 23:46:17,646 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 11 places, 4 transitions, 18 flow. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-06-10 23:46:17,646 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 23:46:17,646 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 36 [2021-06-10 23:46:17,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 23:46:17,648 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-06-10 23:46:17,648 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-10 23:46:17,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10 conditions, 2 events. 0/2 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/3 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-10 23:46:17,648 INFO L132 encePairwiseOnDemand]: 34/36 looper letters, 0 selfloop transitions, 0 changer transitions 2/2 dead transitions. [2021-06-10 23:46:17,648 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 2 transitions, 11 flow [2021-06-10 23:46:17,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 23:46:17,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 23:46:17,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2021-06-10 23:46:17,650 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7129629629629629 [2021-06-10 23:46:17,650 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 77 transitions. [2021-06-10 23:46:17,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 77 transitions. [2021-06-10 23:46:17,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 23:46:17,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 77 transitions. [2021-06-10 23:46:17,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2021-06-10 23:46:17,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2021-06-10 23:46:17,655 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2021-06-10 23:46:17,655 INFO L185 Difference]: Start difference. First operand has 11 places, 4 transitions, 18 flow. Second operand 3 states and 77 transitions. [2021-06-10 23:46:17,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 2 transitions, 11 flow [2021-06-10 23:46:17,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 8 places, 2 transitions, 9 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-10 23:46:17,656 INFO L241 Difference]: Finished difference. Result has 8 places, 0 transitions, 0 flow [2021-06-10 23:46:17,656 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=7, PETRI_DIFFERENCE_MINUEND_PLACES=6, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=8, PETRI_TRANSITIONS=0} [2021-06-10 23:46:17,657 INFO L343 CegarLoopForPetriNet]: 9 programPoint places, -1 predicate places. [2021-06-10 23:46:17,657 INFO L480 AbstractCegarLoop]: Abstraction has has 8 places, 0 transitions, 0 flow [2021-06-10 23:46:17,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-06-10 23:46:17,657 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 23:46:17,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 11:46:17 BasicIcfg [2021-06-10 23:46:17,660 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 23:46:17,661 INFO L168 Benchmark]: Toolchain (without parser) took 2002.32 ms. Allocated memory is still 377.5 MB. Free memory was 339.0 MB in the beginning and 216.8 MB in the end (delta: 122.3 MB). Peak memory consumption was 122.4 MB. Max. memory is 16.0 GB. [2021-06-10 23:46:17,662 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 377.5 MB. Free memory is still 357.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 23:46:17,663 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.75 ms. Allocated memory is still 377.5 MB. Free memory was 338.8 MB in the beginning and 359.4 MB in the end (delta: -20.6 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. [2021-06-10 23:46:17,664 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.94 ms. Allocated memory is still 377.5 MB. Free memory was 359.4 MB in the beginning and 358.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 23:46:17,667 INFO L168 Benchmark]: Boogie Preprocessor took 12.17 ms. Allocated memory is still 377.5 MB. Free memory was 358.3 MB in the beginning and 357.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 23:46:17,668 INFO L168 Benchmark]: RCFGBuilder took 335.83 ms. Allocated memory is still 377.5 MB. Free memory was 357.3 MB in the beginning and 341.5 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-06-10 23:46:17,669 INFO L168 Benchmark]: TraceAbstraction took 1393.50 ms. Allocated memory is still 377.5 MB. Free memory was 341.5 MB in the beginning and 216.8 MB in the end (delta: 124.8 MB). Peak memory consumption was 125.8 MB. Max. memory is 16.0 GB. [2021-06-10 23:46:17,673 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 377.5 MB. Free memory is still 357.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 233.75 ms. Allocated memory is still 377.5 MB. Free memory was 338.8 MB in the beginning and 359.4 MB in the end (delta: -20.6 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 21.94 ms. Allocated memory is still 377.5 MB. Free memory was 359.4 MB in the beginning and 358.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.17 ms. Allocated memory is still 377.5 MB. Free memory was 358.3 MB in the beginning and 357.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 335.83 ms. Allocated memory is still 377.5 MB. Free memory was 357.3 MB in the beginning and 341.5 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1393.50 ms. Allocated memory is still 377.5 MB. Free memory was 341.5 MB in the beginning and 216.8 MB in the end (delta: 124.8 MB). Peak memory consumption was 125.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1001.2ms, 21 PlacesBefore, 9 PlacesAfterwards, 17 TransitionsBefore, 5 TransitionsAfterwards, 24 CoEnabledTransitionPairs, 5 FixpointIterations, 8 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 13 TotalNumberOfCompositions, 18 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 16, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 16, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 16, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 16, unknown conditional: 0, unknown unconditional: 16] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - PositiveResult [Line: 35]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 1.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1296.0ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 57.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1070.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 4.3ms SsaConstructionTime, 18.8ms SatisfiabilityAnalysisTime, 52.4ms InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...