/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/joinMultipleReturnValues.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 14:21:37,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 14:21:37,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 14:21:37,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 14:21:37,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 14:21:37,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 14:21:37,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 14:21:37,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 14:21:37,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 14:21:37,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 14:21:37,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 14:21:37,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 14:21:37,157 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 14:21:37,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 14:21:37,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 14:21:37,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 14:21:37,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 14:21:37,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 14:21:37,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 14:21:37,170 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 14:21:37,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 14:21:37,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 14:21:37,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 14:21:37,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 14:21:37,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-10 14:21:37,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-10 14:21:37,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-10 14:21:37,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-10 14:21:37,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-10 14:21:37,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-10 14:21:37,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 14:21:37,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 14:21:37,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 14:21:37,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 14:21:37,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 14:21:37,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 14:21:37,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 14:21:37,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 14:21:37,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 14:21:37,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 14:21:37,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 14:21:37,188 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-NoLbe.epf [2021-06-10 14:21:37,209 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 14:21:37,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 14:21:37,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 14:21:37,210 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 14:21:37,210 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 14:21:37,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 14:21:37,211 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 14:21:37,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 14:21:37,211 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 14:21:37,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 14:21:37,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 14:21:37,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 14:21:37,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 14:21:37,211 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 14:21:37,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 14:21:37,211 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 14:21:37,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 14:21:37,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 14:21:37,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 14:21:37,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 14:21:37,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 14:21:37,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 14:21:37,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 14:21:37,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 14:21:37,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 14:21:37,212 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 14:21:37,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 14:21:37,214 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-10 14:21:37,215 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 14:21:37,215 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 14:21:37,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 14:21:37,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 14:21:37,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 14:21:37,480 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 14:21:37,481 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 14:21:37,481 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/joinMultipleReturnValues.c [2021-06-10 14:21:37,530 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7a9612d9/f1a91148e4c44aebb1bf6a888b7f6d4a/FLAG314d7473a [2021-06-10 14:21:37,866 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 14:21:37,866 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/joinMultipleReturnValues.c [2021-06-10 14:21:37,866 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-10 14:21:37,866 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-10 14:21:37,867 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-10 14:21:37,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7a9612d9/f1a91148e4c44aebb1bf6a888b7f6d4a/FLAG314d7473a [2021-06-10 14:21:38,291 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7a9612d9/f1a91148e4c44aebb1bf6a888b7f6d4a [2021-06-10 14:21:38,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 14:21:38,295 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 14:21:38,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 14:21:38,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 14:21:38,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 14:21:38,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 02:21:38" (1/1) ... [2021-06-10 14:21:38,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2edc127d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:21:38, skipping insertion in model container [2021-06-10 14:21:38,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 02:21:38" (1/1) ... [2021-06-10 14:21:38,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 14:21:38,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 14:21:38,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 14:21:38,466 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 14:21:38,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 14:21:38,488 INFO L208 MainTranslator]: Completed translation [2021-06-10 14:21:38,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:21:38 WrapperNode [2021-06-10 14:21:38,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 14:21:38,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 14:21:38,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 14:21:38,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 14:21:38,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:21:38" (1/1) ... [2021-06-10 14:21:38,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:21:38" (1/1) ... [2021-06-10 14:21:38,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 14:21:38,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 14:21:38,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 14:21:38,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 14:21:38,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:21:38" (1/1) ... [2021-06-10 14:21:38,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:21:38" (1/1) ... [2021-06-10 14:21:38,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:21:38" (1/1) ... [2021-06-10 14:21:38,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:21:38" (1/1) ... [2021-06-10 14:21:38,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:21:38" (1/1) ... [2021-06-10 14:21:38,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:21:38" (1/1) ... [2021-06-10 14:21:38,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:21:38" (1/1) ... [2021-06-10 14:21:38,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 14:21:38,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 14:21:38,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 14:21:38,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 14:21:38,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:21:38" (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 14:21:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-06-10 14:21:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 14:21:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-06-10 14:21:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-10 14:21:38,601 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-10 14:21:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 14:21:38,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 14:21:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-10 14:21:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-10 14:21:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-06-10 14:21:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 14:21:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 14:21:38,603 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 14:21:38,779 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 14:21:38,780 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-10 14:21:38,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 02:21:38 BoogieIcfgContainer [2021-06-10 14:21:38,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 14:21:38,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 14:21:38,782 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 14:21:38,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 14:21:38,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 02:21:38" (1/3) ... [2021-06-10 14:21:38,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0a0604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 02:21:38, skipping insertion in model container [2021-06-10 14:21:38,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:21:38" (2/3) ... [2021-06-10 14:21:38,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0a0604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 02:21:38, skipping insertion in model container [2021-06-10 14:21:38,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 02:21:38" (3/3) ... [2021-06-10 14:21:38,785 INFO L111 eAbstractionObserver]: Analyzing ICFG joinMultipleReturnValues.c [2021-06-10 14:21:38,789 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 14:21:38,791 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-06-10 14:21:38,792 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 14:21:38,811 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,811 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,811 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,811 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,812 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,812 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,812 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,812 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,812 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,812 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,813 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,813 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,813 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,813 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,813 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,813 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,813 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,813 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,814 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,814 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,814 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,814 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,814 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,814 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,814 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,814 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,814 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,815 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,815 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,815 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,815 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,815 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,815 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,815 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,815 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,816 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,816 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,816 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,816 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,816 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,816 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,816 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,817 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,817 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,817 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,817 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,817 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,817 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,817 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,817 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,818 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,818 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,818 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,819 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,819 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,819 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,819 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,819 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,820 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,820 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,820 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,820 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,821 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,821 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,821 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,821 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,821 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,821 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,821 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,821 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,821 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,822 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,822 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,822 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,822 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,822 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,824 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,824 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,824 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,824 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,825 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,825 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,825 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,825 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,825 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,825 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,825 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,825 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:21:38,844 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-10 14:21:38,863 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-10 14:21:38,880 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 14:21:38,881 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 14:21:38,881 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 14:21:38,881 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 14:21:38,881 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 14:21:38,881 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 14:21:38,881 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 14:21:38,881 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 14:21:38,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 58 transitions, 124 flow [2021-06-10 14:21:38,914 INFO L129 PetriNetUnfolder]: 1/57 cut-off events. [2021-06-10 14:21:38,914 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-10 14:21:38,916 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 57 events. 1/57 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 15 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 19. Up to 2 conditions per place. [2021-06-10 14:21:38,916 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 58 transitions, 124 flow [2021-06-10 14:21:38,919 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 47 transitions, 100 flow [2021-06-10 14:21:38,930 INFO L129 PetriNetUnfolder]: 1/44 cut-off events. [2021-06-10 14:21:38,930 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-10 14:21:38,930 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 14:21:38,931 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 14:21:38,931 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-06-10 14:21:38,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 14:21:38,934 INFO L82 PathProgramCache]: Analyzing trace with hash -964964747, now seen corresponding path program 1 times [2021-06-10 14:21:38,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 14:21:38,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122559228] [2021-06-10 14:21:38,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 14:21:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 14:21:39,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 14:21:39,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-10 14:21:39,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 14:21:39,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-10 14:21:39,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-10 14:21:39,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 14:21:39,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 14:21:39,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 14:21:39,121 INFO L142 QuantifierPusher]: treesize reduction 6, result has 33.3 percent of original size [2021-06-10 14:21:39,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 14:21:39,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 14:21:39,131 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 14:21:39,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122559228] [2021-06-10 14:21:39,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 14:21:39,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-10 14:21:39,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582836704] [2021-06-10 14:21:39,138 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-10 14:21:39,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 14:21:39,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-10 14:21:39,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-06-10 14:21:39,150 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 58 [2021-06-10 14:21:39,152 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 47 transitions, 100 flow. Second operand has 9 states, 9 states have (on average 30.22222222222222) internal successors, (272), 9 states have internal predecessors, (272), 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 14:21:39,152 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 14:21:39,153 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 58 [2021-06-10 14:21:39,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 14:21:39,362 INFO L129 PetriNetUnfolder]: 9/65 cut-off events. [2021-06-10 14:21:39,362 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-10 14:21:39,362 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 65 events. 9/65 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 65. Up to 10 conditions per place. [2021-06-10 14:21:39,363 INFO L132 encePairwiseOnDemand]: 48/58 looper letters, 16 selfloop transitions, 9 changer transitions 0/47 dead transitions. [2021-06-10 14:21:39,365 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 47 transitions, 150 flow [2021-06-10 14:21:39,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-10 14:21:39,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-10 14:21:39,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 278 transitions. [2021-06-10 14:21:39,379 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5325670498084292 [2021-06-10 14:21:39,379 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 278 transitions. [2021-06-10 14:21:39,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 278 transitions. [2021-06-10 14:21:39,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 14:21:39,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 278 transitions. [2021-06-10 14:21:39,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.88888888888889) internal successors, (278), 9 states have internal predecessors, (278), 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 14:21:39,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 58.0) internal successors, (580), 10 states have internal predecessors, (580), 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 14:21:39,394 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 58.0) internal successors, (580), 10 states have internal predecessors, (580), 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 14:21:39,395 INFO L185 Difference]: Start difference. First operand has 50 places, 47 transitions, 100 flow. Second operand 9 states and 278 transitions. [2021-06-10 14:21:39,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 47 transitions, 150 flow [2021-06-10 14:21:39,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 47 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-10 14:21:39,402 INFO L241 Difference]: Finished difference. Result has 53 places, 43 transitions, 106 flow [2021-06-10 14:21:39,404 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=106, PETRI_PLACES=53, PETRI_TRANSITIONS=43} [2021-06-10 14:21:39,404 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 3 predicate places. [2021-06-10 14:21:39,404 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 43 transitions, 106 flow [2021-06-10 14:21:39,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 30.22222222222222) internal successors, (272), 9 states have internal predecessors, (272), 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 14:21:39,405 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 14:21:39,405 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 14:21:39,405 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 14:21:39,406 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-06-10 14:21:39,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 14:21:39,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1050817325, now seen corresponding path program 1 times [2021-06-10 14:21:39,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 14:21:39,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682472163] [2021-06-10 14:21:39,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 14:21:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 14:21:39,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 14:21:39,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-10 14:21:39,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 14:21:39,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-10 14:21:39,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 14:21:39,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 14:21:39,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 14:21:39,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 14:21:39,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-10 14:21:39,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-10 14:21:39,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-10 14:21:39,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-10 14:21:39,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 14:21:39,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-10 14:21:39,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-10 14:21:39,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-10 14:21:39,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 14:21:39,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 14:21:39,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 14:21:39,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:39,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 14:21:39,719 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 14:21:39,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682472163] [2021-06-10 14:21:39,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 14:21:39,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 14:21:39,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483965010] [2021-06-10 14:21:39,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-10 14:21:39,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 14:21:39,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-10 14:21:39,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2021-06-10 14:21:39,726 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 58 [2021-06-10 14:21:39,731 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 43 transitions, 106 flow. Second operand has 19 states, 19 states have (on average 20.57894736842105) internal successors, (391), 19 states have internal predecessors, (391), 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 14:21:39,731 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 14:21:39,731 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 58 [2021-06-10 14:21:39,731 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 14:21:40,358 INFO L129 PetriNetUnfolder]: 10/65 cut-off events. [2021-06-10 14:21:40,358 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-06-10 14:21:40,358 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 65 events. 10/65 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 56 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 16. Up to 11 conditions per place. [2021-06-10 14:21:40,359 INFO L132 encePairwiseOnDemand]: 35/58 looper letters, 17 selfloop transitions, 22 changer transitions 0/51 dead transitions. [2021-06-10 14:21:40,359 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 51 transitions, 200 flow [2021-06-10 14:21:40,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-10 14:21:40,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-06-10 14:21:40,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 496 transitions. [2021-06-10 14:21:40,361 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3563218390804598 [2021-06-10 14:21:40,361 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 496 transitions. [2021-06-10 14:21:40,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 496 transitions. [2021-06-10 14:21:40,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 14:21:40,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 496 transitions. [2021-06-10 14:21:40,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 20.666666666666668) internal successors, (496), 24 states have internal predecessors, (496), 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 14:21:40,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 58.0) internal successors, (1450), 25 states have internal predecessors, (1450), 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 14:21:40,367 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 58.0) internal successors, (1450), 25 states have internal predecessors, (1450), 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 14:21:40,367 INFO L185 Difference]: Start difference. First operand has 53 places, 43 transitions, 106 flow. Second operand 24 states and 496 transitions. [2021-06-10 14:21:40,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 51 transitions, 200 flow [2021-06-10 14:21:40,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 51 transitions, 182 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-06-10 14:21:40,370 INFO L241 Difference]: Finished difference. Result has 67 places, 42 transitions, 130 flow [2021-06-10 14:21:40,371 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=130, PETRI_PLACES=67, PETRI_TRANSITIONS=42} [2021-06-10 14:21:40,371 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 17 predicate places. [2021-06-10 14:21:40,371 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 42 transitions, 130 flow [2021-06-10 14:21:40,371 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 20.57894736842105) internal successors, (391), 19 states have internal predecessors, (391), 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 14:21:40,371 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 14:21:40,372 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 14:21:40,372 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 14:21:40,372 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-06-10 14:21:40,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 14:21:40,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1784401421, now seen corresponding path program 1 times [2021-06-10 14:21:40,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 14:21:40,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171051565] [2021-06-10 14:21:40,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 14:21:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 14:21:40,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:40,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 14:21:40,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:40,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-10 14:21:40,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:40,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-10 14:21:40,468 INFO L142 QuantifierPusher]: treesize reduction 5, result has 61.5 percent of original size [2021-06-10 14:21:40,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-10 14:21:40,477 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-06-10 14:21:40,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 14:21:40,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:40,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 14:21:40,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:40,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 14:21:40,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:40,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 14:21:40,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:40,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 14:21:40,525 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-06-10 14:21:40,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 14:21:40,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:40,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 14:21:40,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:21:40,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 14:21:40,550 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 14:21:40,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171051565] [2021-06-10 14:21:40,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 14:21:40,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-10 14:21:40,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060011392] [2021-06-10 14:21:40,551 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-10 14:21:40,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 14:21:40,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-10 14:21:40,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-06-10 14:21:40,553 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 58 [2021-06-10 14:21:40,553 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 42 transitions, 130 flow. Second operand has 13 states, 13 states have (on average 25.153846153846153) internal successors, (327), 13 states have internal predecessors, (327), 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 14:21:40,553 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 14:21:40,553 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 58 [2021-06-10 14:21:40,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 14:21:40,927 INFO L129 PetriNetUnfolder]: 7/60 cut-off events. [2021-06-10 14:21:40,927 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-06-10 14:21:40,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 60 events. 7/60 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 1/61 useless extension candidates. Maximal degree in co-relation 9. Up to 12 conditions per place. [2021-06-10 14:21:40,928 INFO L132 encePairwiseOnDemand]: 42/58 looper letters, 0 selfloop transitions, 0 changer transitions 45/45 dead transitions. [2021-06-10 14:21:40,928 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 45 transitions, 198 flow [2021-06-10 14:21:40,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-10 14:21:40,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-06-10 14:21:40,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 400 transitions. [2021-06-10 14:21:40,930 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43103448275862066 [2021-06-10 14:21:40,930 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 400 transitions. [2021-06-10 14:21:40,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 400 transitions. [2021-06-10 14:21:40,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 14:21:40,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 400 transitions. [2021-06-10 14:21:40,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 25.0) internal successors, (400), 16 states have internal predecessors, (400), 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 14:21:40,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 58.0) internal successors, (986), 17 states have internal predecessors, (986), 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 14:21:40,932 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 58.0) internal successors, (986), 17 states have internal predecessors, (986), 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 14:21:40,932 INFO L185 Difference]: Start difference. First operand has 67 places, 42 transitions, 130 flow. Second operand 16 states and 400 transitions. [2021-06-10 14:21:40,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 45 transitions, 198 flow [2021-06-10 14:21:40,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 45 transitions, 155 flow, removed 0 selfloop flow, removed 22 redundant places. [2021-06-10 14:21:40,933 INFO L241 Difference]: Finished difference. Result has 59 places, 0 transitions, 0 flow [2021-06-10 14:21:40,933 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=0, PETRI_PLACES=59, PETRI_TRANSITIONS=0} [2021-06-10 14:21:40,933 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 9 predicate places. [2021-06-10 14:21:40,933 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 0 transitions, 0 flow [2021-06-10 14:21:40,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 25.153846153846153) internal successors, (327), 13 states have internal predecessors, (327), 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 14:21:40,933 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-10 14:21:40,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 02:21:40 BasicIcfg [2021-06-10 14:21:40,937 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 14:21:40,937 INFO L168 Benchmark]: Toolchain (without parser) took 2642.24 ms. Allocated memory is still 343.9 MB. Free memory was 305.6 MB in the beginning and 303.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 14:21:40,938 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 343.9 MB. Free memory is still 324.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 14:21:40,938 INFO L168 Benchmark]: CACSL2BoogieTranslator took 190.92 ms. Allocated memory is still 343.9 MB. Free memory was 305.4 MB in the beginning and 326.0 MB in the end (delta: -20.6 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.0 GB. [2021-06-10 14:21:40,938 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.40 ms. Allocated memory is still 343.9 MB. Free memory was 326.0 MB in the beginning and 324.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 14:21:40,938 INFO L168 Benchmark]: Boogie Preprocessor took 32.01 ms. Allocated memory is still 343.9 MB. Free memory was 324.9 MB in the beginning and 323.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 14:21:40,939 INFO L168 Benchmark]: RCFGBuilder took 232.89 ms. Allocated memory is still 343.9 MB. Free memory was 323.4 MB in the beginning and 301.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-06-10 14:21:40,939 INFO L168 Benchmark]: TraceAbstraction took 2154.99 ms. Allocated memory is still 343.9 MB. Free memory was 301.9 MB in the beginning and 303.7 MB in the end (delta: -1.9 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 14:21:40,941 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 ms. Allocated memory is still 343.9 MB. Free memory is still 324.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 190.92 ms. Allocated memory is still 343.9 MB. Free memory was 305.4 MB in the beginning and 326.0 MB in the end (delta: -20.6 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.40 ms. Allocated memory is still 343.9 MB. Free memory was 326.0 MB in the beginning and 324.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.01 ms. Allocated memory is still 343.9 MB. Free memory was 324.9 MB in the beginning and 323.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 232.89 ms. Allocated memory is still 343.9 MB. Free memory was 323.4 MB in the beginning and 301.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2154.99 ms. Allocated memory is still 343.9 MB. Free memory was 301.9 MB in the beginning and 303.7 MB in the end (delta: -1.9 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 45]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 58 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 10.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2056.0ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1288.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 37.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 32 SDtfs, 259 SDslu, 140 SDs, 0 SdLazy, 578 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 254.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 1055.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred in iteration=2, InterpolantAutomatonStates: 49, 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: 14.2ms SsaConstructionTime, 90.7ms SatisfiabilityAnalysisTime, 522.2ms InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 823 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...