/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/joinMultipleReturnValues.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 07:38:46,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 07:38:46,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 07:38:46,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 07:38:46,721 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 07:38:46,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 07:38:46,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 07:38:46,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 07:38:46,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 07:38:46,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 07:38:46,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 07:38:46,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 07:38:46,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 07:38:46,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 07:38:46,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 07:38:46,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 07:38:46,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 07:38:46,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 07:38:46,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 07:38:46,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 07:38:46,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 07:38:46,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 07:38:46,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 07:38:46,743 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 07:38:46,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 07:38:46,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 07:38:46,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 07:38:46,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 07:38:46,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 07:38:46,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-25 07:38:46,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 07:38:46,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 07:38:46,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 07:38:46,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 07:38:46,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 07:38:46,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 07:38:46,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 07:38:46,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 07:38:46,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 07:38:46,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 07:38:46,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 07:38:46,760 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 07:38:46,797 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 07:38:46,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 07:38:46,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 07:38:46,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 07:38:46,802 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 07:38:46,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 07:38:46,802 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 07:38:46,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 07:38:46,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 07:38:46,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 07:38:46,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 07:38:46,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 07:38:46,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 07:38:46,804 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 07:38:46,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 07:38:46,804 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 07:38:46,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 07:38:46,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 07:38:46,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 07:38:46,805 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 07:38:46,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 07:38:46,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 07:38:46,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 07:38:46,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 07:38:46,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 07:38:46,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 07:38:46,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 07:38:46,806 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 07:38:46,806 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 07:38:46,806 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 07:38:46,806 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 07:38:47,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 07:38:47,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 07:38:47,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 07:38:47,147 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 07:38:47,147 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 07:38:47,148 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/joinMultipleReturnValues.c [2021-03-25 07:38:47,208 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccde1b3ac/32843a21d16b4dc9b8bfca981d2e2d1f/FLAG1a2b9a21d [2021-03-25 07:38:47,597 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 07:38:47,598 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/joinMultipleReturnValues.c [2021-03-25 07:38:47,598 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-25 07:38:47,598 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-25 07:38:47,599 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-25 07:38:47,629 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccde1b3ac/32843a21d16b4dc9b8bfca981d2e2d1f/FLAG1a2b9a21d [2021-03-25 07:38:47,981 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccde1b3ac/32843a21d16b4dc9b8bfca981d2e2d1f [2021-03-25 07:38:47,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 07:38:47,984 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 07:38:47,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 07:38:47,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 07:38:47,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 07:38:47,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 07:38:47" (1/1) ... [2021-03-25 07:38:47,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c1fba30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:47, skipping insertion in model container [2021-03-25 07:38:47,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 07:38:47" (1/1) ... [2021-03-25 07:38:47,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 07:38:48,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 07:38:48,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 07:38:48,225 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 07:38:48,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 07:38:48,255 INFO L208 MainTranslator]: Completed translation [2021-03-25 07:38:48,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:48 WrapperNode [2021-03-25 07:38:48,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 07:38:48,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 07:38:48,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 07:38:48,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 07:38:48,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:48" (1/1) ... [2021-03-25 07:38:48,278 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:48" (1/1) ... [2021-03-25 07:38:48,294 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 07:38:48,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 07:38:48,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 07:38:48,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 07:38:48,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:48" (1/1) ... [2021-03-25 07:38:48,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:48" (1/1) ... [2021-03-25 07:38:48,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:48" (1/1) ... [2021-03-25 07:38:48,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:48" (1/1) ... [2021-03-25 07:38:48,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:48" (1/1) ... [2021-03-25 07:38:48,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:48" (1/1) ... [2021-03-25 07:38:48,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:48" (1/1) ... [2021-03-25 07:38:48,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 07:38:48,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 07:38:48,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 07:38:48,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 07:38:48,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:48" (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 07:38:48,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-03-25 07:38:48,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 07:38:48,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-03-25 07:38:48,405 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-25 07:38:48,405 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-25 07:38:48,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 07:38:48,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 07:38:48,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 07:38:48,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-25 07:38:48,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-25 07:38:48,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 07:38:48,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 07:38:48,407 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 07:38:48,625 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 07:38:48,626 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-25 07:38:48,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 07:38:48 BoogieIcfgContainer [2021-03-25 07:38:48,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 07:38:48,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 07:38:48,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 07:38:48,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 07:38:48,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 07:38:47" (1/3) ... [2021-03-25 07:38:48,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50121701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 07:38:48, skipping insertion in model container [2021-03-25 07:38:48,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:38:48" (2/3) ... [2021-03-25 07:38:48,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50121701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 07:38:48, skipping insertion in model container [2021-03-25 07:38:48,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 07:38:48" (3/3) ... [2021-03-25 07:38:48,634 INFO L111 eAbstractionObserver]: Analyzing ICFG joinMultipleReturnValues.c [2021-03-25 07:38:48,638 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 07:38:48,642 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 07:38:48,642 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 07:38:48,665 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,665 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,665 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,666 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,666 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,666 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,666 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,666 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,667 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,667 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,667 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,667 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,668 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,668 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,668 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,668 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,668 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,668 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,668 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,669 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,669 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,669 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,669 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,669 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,669 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,670 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,670 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,670 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,670 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,670 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,670 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,671 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,671 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,671 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,671 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,671 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,671 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,672 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,672 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,672 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,672 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,672 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,673 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,673 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,673 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,673 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,673 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,673 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,674 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,674 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,674 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,675 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,675 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,675 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,675 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,676 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,676 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,676 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,676 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,676 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,677 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,677 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,677 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,677 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,678 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,678 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,678 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,678 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,678 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,678 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,678 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,679 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,679 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,679 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,679 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,679 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,681 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,682 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,682 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,682 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,682 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,682 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,682 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,683 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,683 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,683 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,683 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,683 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:38:48,689 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-03-25 07:38:48,705 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-25 07:38:48,723 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 07:38:48,723 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 07:38:48,723 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 07:38:48,723 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 07:38:48,723 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 07:38:48,723 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 07:38:48,724 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 07:38:48,724 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 07:38:48,734 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 58 transitions, 124 flow [2021-03-25 07:38:48,767 INFO L129 PetriNetUnfolder]: 1/57 cut-off events. [2021-03-25 07:38:48,767 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 07:38:48,769 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. [2021-03-25 07:38:48,770 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 58 transitions, 124 flow [2021-03-25 07:38:48,774 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 47 transitions, 100 flow [2021-03-25 07:38:48,775 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:38:48,782 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 47 transitions, 100 flow [2021-03-25 07:38:48,785 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 47 transitions, 100 flow [2021-03-25 07:38:48,787 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 47 transitions, 100 flow [2021-03-25 07:38:48,807 INFO L129 PetriNetUnfolder]: 1/47 cut-off events. [2021-03-25 07:38:48,807 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 07:38:48,807 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 47 events. 1/47 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. 0/45 useless extension candidates. Maximal degree in co-relation 19. Up to 2 conditions per place. [2021-03-25 07:38:48,810 INFO L142 LiptonReduction]: Number of co-enabled transitions 68 [2021-03-25 07:38:50,478 INFO L154 LiptonReduction]: Checked pairs total: 47 [2021-03-25 07:38:50,478 INFO L156 LiptonReduction]: Total number of compositions: 37 [2021-03-25 07:38:50,481 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1707 [2021-03-25 07:38:50,488 INFO L129 PetriNetUnfolder]: 1/12 cut-off events. [2021-03-25 07:38:50,488 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 07:38:50,488 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:38:50,489 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:38:50,489 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:38:50,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:38:50,493 INFO L82 PathProgramCache]: Analyzing trace with hash 842903822, now seen corresponding path program 1 times [2021-03-25 07:38:50,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:38:50,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001202691] [2021-03-25 07:38:50,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:38:50,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:38:50,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:38:50,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 07:38:50,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:38:50,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 07:38:50,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:38:50,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:38:50,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:38:50,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 07:38:50,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:38:50,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 07:38:50,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:38:50,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 07:38:50,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:38:50,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 07:38:50,731 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 07:38:50,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001202691] [2021-03-25 07:38:50,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:38:50,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 07:38:50,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794923934] [2021-03-25 07:38:50,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:38:50,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:38:50,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:38:50,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:38:50,759 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 95 [2021-03-25 07:38:50,763 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 15 transitions, 36 flow. Second operand has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 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 07:38:50,764 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:38:50,764 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 95 [2021-03-25 07:38:50,765 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:38:50,905 INFO L129 PetriNetUnfolder]: 3/17 cut-off events. [2021-03-25 07:38:50,905 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 07:38:50,906 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 17 events. 3/17 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 20. Up to 4 conditions per place. [2021-03-25 07:38:50,907 INFO L132 encePairwiseOnDemand]: 86/95 looper letters, 6 selfloop transitions, 7 changer transitions 0/14 dead transitions. [2021-03-25 07:38:50,907 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 14 transitions, 60 flow [2021-03-25 07:38:50,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:38:50,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:38:50,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 279 transitions. [2021-03-25 07:38:50,919 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3671052631578947 [2021-03-25 07:38:50,919 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 279 transitions. [2021-03-25 07:38:50,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 279 transitions. [2021-03-25 07:38:50,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:38:50,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 279 transitions. [2021-03-25 07:38:50,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 34.875) internal successors, (279), 8 states have internal predecessors, (279), 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 07:38:50,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 95.0) internal successors, (855), 9 states have internal predecessors, (855), 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 07:38:50,935 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 95.0) internal successors, (855), 9 states have internal predecessors, (855), 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 07:38:50,937 INFO L185 Difference]: Start difference. First operand has 18 places, 15 transitions, 36 flow. Second operand 8 states and 279 transitions. [2021-03-25 07:38:50,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 14 transitions, 60 flow [2021-03-25 07:38:50,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 14 transitions, 56 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 07:38:50,940 INFO L241 Difference]: Finished difference. Result has 20 places, 11 transitions, 38 flow [2021-03-25 07:38:50,942 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=38, PETRI_PLACES=20, PETRI_TRANSITIONS=11} [2021-03-25 07:38:50,942 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, 2 predicate places. [2021-03-25 07:38:50,942 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:38:50,943 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 11 transitions, 38 flow [2021-03-25 07:38:50,943 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 11 transitions, 38 flow [2021-03-25 07:38:50,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 20 places, 11 transitions, 38 flow [2021-03-25 07:38:50,946 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-03-25 07:38:50,946 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 07:38:50,946 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 11 events. 0/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 07:38:50,947 INFO L142 LiptonReduction]: Number of co-enabled transitions 6 [2021-03-25 07:38:51,325 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2021-03-25 07:38:51,497 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2021-03-25 07:38:51,550 INFO L154 LiptonReduction]: Checked pairs total: 11 [2021-03-25 07:38:51,550 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 07:38:51,550 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 608 [2021-03-25 07:38:51,551 INFO L480 AbstractCegarLoop]: Abstraction has has 15 places, 7 transitions, 28 flow [2021-03-25 07:38:51,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 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 07:38:51,551 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:38:51,552 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:38:51,552 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 07:38:51,552 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:38:51,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:38:51,553 INFO L82 PathProgramCache]: Analyzing trace with hash 360214840, now seen corresponding path program 1 times [2021-03-25 07:38:51,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:38:51,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027317109] [2021-03-25 07:38:51,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:38:51,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:38:51,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:38:51,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 07:38:51,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:38:51,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 07:38:51,642 INFO L142 QuantifierPusher]: treesize reduction 5, result has 61.5 percent of original size [2021-03-25 07:38:51,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 07:38:51,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:38:51,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 07:38:51,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:38:51,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 07:38:51,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:38:51,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 07:38:51,669 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 07:38:51,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027317109] [2021-03-25 07:38:51,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:38:51,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:38:51,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182480134] [2021-03-25 07:38:51,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:38:51,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:38:51,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:38:51,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:38:51,673 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 99 [2021-03-25 07:38:51,673 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 7 transitions, 28 flow. Second operand has 7 states, 7 states have (on average 32.57142857142857) internal successors, (228), 7 states have internal predecessors, (228), 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 07:38:51,673 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:38:51,673 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 99 [2021-03-25 07:38:51,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:38:51,739 INFO L129 PetriNetUnfolder]: 2/10 cut-off events. [2021-03-25 07:38:51,739 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 07:38:51,740 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 10 events. 2/10 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 8 event pairs, 0 based on Foata normal form. 1/11 useless extension candidates. Maximal degree in co-relation 2. Up to 3 conditions per place. [2021-03-25 07:38:51,740 INFO L132 encePairwiseOnDemand]: 94/99 looper letters, 0 selfloop transitions, 0 changer transitions 8/8 dead transitions. [2021-03-25 07:38:51,740 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 8 transitions, 44 flow [2021-03-25 07:38:51,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:38:51,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:38:51,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 195 transitions. [2021-03-25 07:38:51,743 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3282828282828283 [2021-03-25 07:38:51,743 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 195 transitions. [2021-03-25 07:38:51,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 195 transitions. [2021-03-25 07:38:51,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:38:51,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 195 transitions. [2021-03-25 07:38:51,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 32.5) internal successors, (195), 6 states have internal predecessors, (195), 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 07:38:51,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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 07:38:51,746 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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 07:38:51,746 INFO L185 Difference]: Start difference. First operand has 15 places, 7 transitions, 28 flow. Second operand 6 states and 195 transitions. [2021-03-25 07:38:51,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 8 transitions, 44 flow [2021-03-25 07:38:51,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 8 transitions, 35 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-03-25 07:38:51,747 INFO L241 Difference]: Finished difference. Result has 14 places, 0 transitions, 0 flow [2021-03-25 07:38:51,747 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=15, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=14, PETRI_TRANSITIONS=0} [2021-03-25 07:38:51,747 INFO L343 CegarLoopForPetriNet]: 18 programPoint places, -4 predicate places. [2021-03-25 07:38:51,748 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:38:51,748 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 14 places, 0 transitions, 0 flow [2021-03-25 07:38:51,748 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 14 places, 0 transitions, 0 flow [2021-03-25 07:38:51,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 07:38:51,748 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 07:38:51,748 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 07:38:51,749 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 07:38:51,749 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 07:38:51,749 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:38:51,749 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:38:51,750 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-03-25 07:38:51,751 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 07:38:51,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 32.57142857142857) internal successors, (228), 7 states have internal predecessors, (228), 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 07:38:51,752 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 07:38:51,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 07:38:51 BasicIcfg [2021-03-25 07:38:51,755 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 07:38:51,756 INFO L168 Benchmark]: Toolchain (without parser) took 3771.50 ms. Allocated memory was 255.9 MB in the beginning and 465.6 MB in the end (delta: 209.7 MB). Free memory was 233.4 MB in the beginning and 321.7 MB in the end (delta: -88.3 MB). Peak memory consumption was 121.4 MB. Max. memory is 16.0 GB. [2021-03-25 07:38:51,756 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 07:38:51,757 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.72 ms. Allocated memory was 255.9 MB in the beginning and 367.0 MB in the end (delta: 111.1 MB). Free memory was 233.4 MB in the beginning and 350.0 MB in the end (delta: -116.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-03-25 07:38:51,757 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.02 ms. Allocated memory is still 367.0 MB. Free memory was 349.2 MB in the beginning and 347.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 07:38:51,758 INFO L168 Benchmark]: Boogie Preprocessor took 36.10 ms. Allocated memory is still 367.0 MB. Free memory was 347.9 MB in the beginning and 347.1 MB in the end (delta: 717.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 07:38:51,758 INFO L168 Benchmark]: RCFGBuilder took 295.86 ms. Allocated memory is still 367.0 MB. Free memory was 347.1 MB in the beginning and 328.0 MB in the end (delta: 19.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-03-25 07:38:51,758 INFO L168 Benchmark]: TraceAbstraction took 3126.21 ms. Allocated memory was 367.0 MB in the beginning and 465.6 MB in the end (delta: 98.6 MB). Free memory was 328.0 MB in the beginning and 321.7 MB in the end (delta: 6.2 MB). Peak memory consumption was 106.5 MB. Max. memory is 16.0 GB. [2021-03-25 07:38:51,761 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 272.72 ms. Allocated memory was 255.9 MB in the beginning and 367.0 MB in the end (delta: 111.1 MB). Free memory was 233.4 MB in the beginning and 350.0 MB in the end (delta: -116.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 35.02 ms. Allocated memory is still 367.0 MB. Free memory was 349.2 MB in the beginning and 347.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 36.10 ms. Allocated memory is still 367.0 MB. Free memory was 347.9 MB in the beginning and 347.1 MB in the end (delta: 717.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 295.86 ms. Allocated memory is still 367.0 MB. Free memory was 347.1 MB in the beginning and 328.0 MB in the end (delta: 19.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3126.21 ms. Allocated memory was 367.0 MB in the beginning and 465.6 MB in the end (delta: 98.6 MB). Free memory was 328.0 MB in the beginning and 321.7 MB in the end (delta: 6.2 MB). Peak memory consumption was 106.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1693.9ms, 50 PlacesBefore, 18 PlacesAfterwards, 47 TransitionsBefore, 15 TransitionsAfterwards, 68 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 37 TotalNumberOfCompositions, 47 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 45, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 35, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 35, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 45, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 35, unknown conditional: 0, unknown unconditional: 35] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 607.1ms, 20 PlacesBefore, 15 PlacesAfterwards, 11 TransitionsBefore, 7 TransitionsAfterwards, 6 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 11 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2ms, 14 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): 2, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - 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: 3.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3033.9ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 267.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1760.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 7 SDtfs, 15 SDslu, 9 SDs, 0 SdLazy, 78 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 65.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 177.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=1, InterpolantAutomatonStates: 14, 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: 6.9ms SsaConstructionTime, 70.3ms SatisfiabilityAnalysisTime, 219.2ms InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 164 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...