/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-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/forkMultipleParameter.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 07:38:40,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 07:38:40,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 07:38:40,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 07:38:40,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 07:38:40,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 07:38:40,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 07:38:40,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 07:38:40,310 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 07:38:40,316 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 07:38:40,317 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 07:38:40,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 07:38:40,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 07:38:40,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 07:38:40,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 07:38:40,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 07:38:40,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 07:38:40,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 07:38:40,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 07:38:40,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 07:38:40,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 07:38:40,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 07:38:40,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 07:38:40,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 07:38:40,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 07:38:40,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 07:38:40,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 07:38:40,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 07:38:40,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 07:38:40,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-25 07:38:40,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 07:38:40,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 07:38:40,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 07:38:40,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 07:38:40,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 07:38:40,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 07:38:40,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 07:38:40,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 07:38:40,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 07:38:40,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 07:38:40,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 07:38:40,361 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-RepeatedVariableLbe.epf [2021-03-25 07:38:40,396 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 07:38:40,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 07:38:40,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 07:38:40,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 07:38:40,400 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 07:38:40,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 07:38:40,401 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 07:38:40,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 07:38:40,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 07:38:40,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 07:38:40,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 07:38:40,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 07:38:40,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 07:38:40,402 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 07:38:40,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 07:38:40,403 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 07:38:40,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 07:38:40,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 07:38:40,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 07:38:40,403 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 07:38:40,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 07:38:40,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 07:38:40,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 07:38:40,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 07:38:40,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 07:38:40,404 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 07:38:40,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 07:38:40,404 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 07:38:40,405 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 07:38:40,405 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 07:38:40,405 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 07:38:40,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 07:38:40,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 07:38:40,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 07:38:40,752 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 07:38:40,753 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 07:38:40,754 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/forkMultipleParameter.c [2021-03-25 07:38:40,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b64d8718b/2645f3dc62a5450e84c3f3a2b4d4c65a/FLAG2c58c7559 [2021-03-25 07:38:41,281 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 07:38:41,282 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/forkMultipleParameter.c [2021-03-25 07:38:41,282 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-25 07:38:41,282 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-25 07:38:41,319 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b64d8718b/2645f3dc62a5450e84c3f3a2b4d4c65a/FLAG2c58c7559 [2021-03-25 07:38:41,823 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b64d8718b/2645f3dc62a5450e84c3f3a2b4d4c65a [2021-03-25 07:38:41,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 07:38:41,826 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 07:38:41,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 07:38:41,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 07:38:41,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 07:38:41,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 07:38:41" (1/1) ... [2021-03-25 07:38:41,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ad2eddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:41, skipping insertion in model container [2021-03-25 07:38:41,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 07:38:41" (1/1) ... [2021-03-25 07:38:41,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 07:38:41,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 07:38:41,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 07:38:41,948 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 07:38:41,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 07:38:41,969 INFO L208 MainTranslator]: Completed translation [2021-03-25 07:38:41,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:41 WrapperNode [2021-03-25 07:38:41,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 07:38:41,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 07:38:41,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 07:38:41,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 07:38:41,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:41" (1/1) ... [2021-03-25 07:38:41,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:41" (1/1) ... [2021-03-25 07:38:42,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 07:38:42,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 07:38:42,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 07:38:42,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 07:38:42,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:41" (1/1) ... [2021-03-25 07:38:42,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:41" (1/1) ... [2021-03-25 07:38:42,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:41" (1/1) ... [2021-03-25 07:38:42,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:41" (1/1) ... [2021-03-25 07:38:42,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:41" (1/1) ... [2021-03-25 07:38:42,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:41" (1/1) ... [2021-03-25 07:38:42,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:41" (1/1) ... [2021-03-25 07:38:42,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 07:38:42,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 07:38:42,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 07:38:42,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 07:38:42,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:41" (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 [2021-03-25 07:38:42,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-03-25 07:38:42,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 07:38:42,115 INFO L130 BoogieDeclarations]: Found specification of procedure add [2021-03-25 07:38:42,115 INFO L138 BoogieDeclarations]: Found implementation of procedure add [2021-03-25 07:38:42,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 07:38:42,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 07:38:42,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 07:38:42,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-25 07:38:42,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-25 07:38:42,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 07:38:42,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 07:38:42,118 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 07:38:42,399 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 07:38:42,399 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-25 07:38:42,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 07:38:42 BoogieIcfgContainer [2021-03-25 07:38:42,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 07:38:42,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 07:38:42,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 07:38:42,404 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 07:38:42,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 07:38:41" (1/3) ... [2021-03-25 07:38:42,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24edd05f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 07:38:42, skipping insertion in model container [2021-03-25 07:38:42,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:41" (2/3) ... [2021-03-25 07:38:42,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24edd05f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 07:38:42, skipping insertion in model container [2021-03-25 07:38:42,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 07:38:42" (3/3) ... [2021-03-25 07:38:42,407 INFO L111 eAbstractionObserver]: Analyzing ICFG forkMultipleParameter.c [2021-03-25 07:38:42,411 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 07:38:42,416 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 07:38:42,417 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 07:38:42,446 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,447 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,447 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,447 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,447 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,447 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,447 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,447 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,448 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,448 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,448 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~numbers~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,448 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~numbers~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,449 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,449 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,449 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~numbers~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,449 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~numbers~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,449 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~numbers~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,450 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~numbers~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,450 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,450 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~numbers~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,451 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~numbers~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,451 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,451 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~numbers~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,451 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~numbers~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,452 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,452 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~numbers~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,452 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~numbers~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,452 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,453 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,453 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,453 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~result~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,453 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,453 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,453 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~result~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,454 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,454 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,454 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,454 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,455 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~result~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,455 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,455 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,455 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~result~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,455 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,456 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,458 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,458 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,458 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,459 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,459 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~result~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,459 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~numbers~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,459 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~numbers~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,459 WARN L313 ript$VariableManager]: TermVariabe addThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,459 WARN L313 ript$VariableManager]: TermVariabe |addThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:42,467 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-03-25 07:38:42,483 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-25 07:38:42,511 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 07:38:42,511 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 07:38:42,511 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 07:38:42,511 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 07:38:42,511 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 07:38:42,511 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 07:38:42,512 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 07:38:42,512 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 07:38:42,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 42 transitions, 92 flow [2021-03-25 07:38:42,565 INFO L129 PetriNetUnfolder]: 0/41 cut-off events. [2021-03-25 07:38:42,565 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 07:38:42,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 41 events. 0/41 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 7 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 07:38:42,567 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 42 transitions, 92 flow [2021-03-25 07:38:42,579 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 31 transitions, 68 flow [2021-03-25 07:38:42,580 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:38:42,589 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 31 transitions, 68 flow [2021-03-25 07:38:42,593 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 31 transitions, 68 flow [2021-03-25 07:38:42,594 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 31 transitions, 68 flow [2021-03-25 07:38:42,614 INFO L129 PetriNetUnfolder]: 0/31 cut-off events. [2021-03-25 07:38:42,614 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 07:38:42,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 31 events. 0/31 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 07:38:42,617 INFO L142 LiptonReduction]: Number of co-enabled transitions 54 [2021-03-25 07:38:43,818 INFO L154 LiptonReduction]: Checked pairs total: 32 [2021-03-25 07:38:43,818 INFO L156 LiptonReduction]: Total number of compositions: 23 [2021-03-25 07:38:43,820 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1241 [2021-03-25 07:38:43,828 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2021-03-25 07:38:43,828 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 07:38:43,829 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:38:43,829 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:38:43,830 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:38:43,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:38:43,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1528066487, now seen corresponding path program 1 times [2021-03-25 07:38:43,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:38:43,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980537985] [2021-03-25 07:38:43,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:38:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:38:44,103 INFO L142 QuantifierPusher]: treesize reduction 5, result has 82.8 percent of original size [2021-03-25 07:38:44,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 07:38:44,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:38:44,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 07:38:44,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:38:44,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 07:38:44,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:38:44,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 07:38:44,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:38:44,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 07:38:44,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:38:44,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 07:38:44,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:38:44,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980537985] [2021-03-25 07:38:44,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:38:44,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:38:44,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974346999] [2021-03-25 07:38:44,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:38:44,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:38:44,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:38:44,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:38:44,225 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 65 [2021-03-25 07:38:44,227 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 8 transitions, 22 flow. Second operand has 8 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 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) [2021-03-25 07:38:44,227 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:38:44,227 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 65 [2021-03-25 07:38:44,228 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:38:44,394 INFO L129 PetriNetUnfolder]: 1/9 cut-off events. [2021-03-25 07:38:44,395 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 07:38:44,396 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 9 events. 1/9 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 1/10 useless extension candidates. Maximal degree in co-relation 8. Up to 3 conditions per place. [2021-03-25 07:38:44,397 INFO L132 encePairwiseOnDemand]: 58/65 looper letters, 0 selfloop transitions, 0 changer transitions 8/8 dead transitions. [2021-03-25 07:38:44,397 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 8 transitions, 38 flow [2021-03-25 07:38:44,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:38:44,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:38:44,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 169 transitions. [2021-03-25 07:38:44,409 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.325 [2021-03-25 07:38:44,410 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 169 transitions. [2021-03-25 07:38:44,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 169 transitions. [2021-03-25 07:38:44,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:38:44,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 169 transitions. [2021-03-25 07:38:44,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 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) [2021-03-25 07:38:44,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 65.0) internal successors, (585), 9 states have internal predecessors, (585), 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) [2021-03-25 07:38:44,421 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 65.0) internal successors, (585), 9 states have internal predecessors, (585), 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) [2021-03-25 07:38:44,423 INFO L185 Difference]: Start difference. First operand has 12 places, 8 transitions, 22 flow. Second operand 8 states and 169 transitions. [2021-03-25 07:38:44,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 8 transitions, 38 flow [2021-03-25 07:38:44,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 8 transitions, 34 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 07:38:44,427 INFO L241 Difference]: Finished difference. Result has 16 places, 0 transitions, 0 flow [2021-03-25 07:38:44,428 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=16, PETRI_TRANSITIONS=0} [2021-03-25 07:38:44,429 INFO L343 CegarLoopForPetriNet]: 12 programPoint places, 4 predicate places. [2021-03-25 07:38:44,429 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:38:44,429 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 16 places, 0 transitions, 0 flow [2021-03-25 07:38:44,430 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 16 places, 0 transitions, 0 flow [2021-03-25 07:38:44,430 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 07:38:44,430 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 07:38:44,430 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 07:38:44,430 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-25 07:38:44,430 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 07:38:44,430 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:38:44,430 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:38:44,431 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-03-25 07:38:44,431 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 07:38:44,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 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) [2021-03-25 07:38:44,432 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 07:38:44,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 07:38:44 BasicIcfg [2021-03-25 07:38:44,435 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 07:38:44,436 INFO L168 Benchmark]: Toolchain (without parser) took 2609.44 ms. Allocated memory was 255.9 MB in the beginning and 331.4 MB in the end (delta: 75.5 MB). Free memory was 232.4 MB in the beginning and 297.3 MB in the end (delta: -64.9 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.0 GB. [2021-03-25 07:38:44,437 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 07:38:44,437 INFO L168 Benchmark]: CACSL2BoogieTranslator took 141.08 ms. Allocated memory is still 255.9 MB. Free memory was 232.4 MB in the beginning and 223.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-03-25 07:38:44,438 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.91 ms. Allocated memory was 255.9 MB in the beginning and 331.4 MB in the end (delta: 75.5 MB). Free memory was 223.4 MB in the beginning and 315.1 MB in the end (delta: -91.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 07:38:44,438 INFO L168 Benchmark]: Boogie Preprocessor took 34.11 ms. Allocated memory is still 331.4 MB. Free memory was 315.1 MB in the beginning and 314.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 07:38:44,439 INFO L168 Benchmark]: RCFGBuilder took 355.52 ms. Allocated memory is still 331.4 MB. Free memory was 314.0 MB in the beginning and 298.3 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-25 07:38:44,439 INFO L168 Benchmark]: TraceAbstraction took 2033.73 ms. Allocated memory is still 331.4 MB. Free memory was 297.8 MB in the beginning and 297.3 MB in the end (delta: 438.5 kB). Peak memory consumption was 953.8 kB. Max. memory is 16.0 GB. [2021-03-25 07:38:44,441 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 141.08 ms. Allocated memory is still 255.9 MB. Free memory was 232.4 MB in the beginning and 223.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 38.91 ms. Allocated memory was 255.9 MB in the beginning and 331.4 MB in the end (delta: 75.5 MB). Free memory was 223.4 MB in the beginning and 315.1 MB in the end (delta: -91.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 34.11 ms. Allocated memory is still 331.4 MB. Free memory was 315.1 MB in the beginning and 314.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 355.52 ms. Allocated memory is still 331.4 MB. Free memory was 314.0 MB in the beginning and 298.3 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2033.73 ms. Allocated memory is still 331.4 MB. Free memory was 297.8 MB in the beginning and 297.3 MB in the end (delta: 438.5 kB). Peak memory consumption was 953.8 kB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1225.9ms, 35 PlacesBefore, 12 PlacesAfterwards, 31 TransitionsBefore, 8 TransitionsAfterwards, 54 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 23 TotalNumberOfCompositions, 32 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 32, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 26, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 26, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 32, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 26, unknown conditional: 0, unknown unconditional: 26] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.8ms, 16 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 31]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1926.0ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 214.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1312.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1 SDtfs, 10 SDslu, 1 SDs, 0 SdLazy, 34 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 178.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 8, 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: 9.1ms SsaConstructionTime, 60.2ms SatisfiabilityAnalysisTime, 218.1ms InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 112 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...