/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/ThreadIdTest2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 04:25:06,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 04:25:06,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 04:25:06,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 04:25:06,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 04:25:06,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 04:25:06,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 04:25:06,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 04:25:06,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 04:25:06,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 04:25:06,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 04:25:06,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 04:25:06,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 04:25:06,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 04:25:06,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 04:25:06,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 04:25:06,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 04:25:06,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 04:25:06,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 04:25:06,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 04:25:06,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 04:25:06,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 04:25:06,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 04:25:06,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 04:25:06,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 04:25:06,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 04:25:06,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 04:25:06,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 04:25:06,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 04:25:06,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 04:25:06,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 04:25:06,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 04:25:06,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 04:25:06,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 04:25:06,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 04:25:06,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 04:25:06,605 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 [2021-03-11 04:25:06,621 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 04:25:06,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 04:25:06,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 04:25:06,622 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 04:25:06,622 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 04:25:06,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 04:25:06,622 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 04:25:06,623 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 04:25:06,623 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 04:25:06,623 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 04:25:06,623 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 04:25:06,623 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 04:25:06,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 04:25:06,623 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 04:25:06,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 04:25:06,623 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 04:25:06,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 04:25:06,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 04:25:06,624 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 04:25:06,624 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 04:25:06,624 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 04:25:06,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 04:25:06,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 04:25:06,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 04:25:06,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 04:25:06,625 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 04:25:06,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 04:25:06,625 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-11 04:25:06,625 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 04:25:06,625 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 04:25:06,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 04:25:06,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 04:25:06,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 04:25:06,893 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 04:25:06,893 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 04:25:06,894 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/ThreadIdTest2.c [2021-03-11 04:25:06,938 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca881ca02/53e02661c40b4282a459b6cbc7ac1f4a/FLAG76d82ce8d [2021-03-11 04:25:07,262 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 04:25:07,262 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/ThreadIdTest2.c [2021-03-11 04:25:07,263 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-11 04:25:07,263 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-11 04:25:07,284 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca881ca02/53e02661c40b4282a459b6cbc7ac1f4a/FLAG76d82ce8d [2021-03-11 04:25:07,686 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca881ca02/53e02661c40b4282a459b6cbc7ac1f4a [2021-03-11 04:25:07,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 04:25:07,695 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 04:25:07,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 04:25:07,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 04:25:07,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 04:25:07,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 04:25:07" (1/1) ... [2021-03-11 04:25:07,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a3e0deb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:07, skipping insertion in model container [2021-03-11 04:25:07,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 04:25:07" (1/1) ... [2021-03-11 04:25:07,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 04:25:07,711 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 04:25:07,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 04:25:07,800 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 04:25:07,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 04:25:07,845 INFO L208 MainTranslator]: Completed translation [2021-03-11 04:25:07,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:07 WrapperNode [2021-03-11 04:25:07,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 04:25:07,852 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 04:25:07,852 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 04:25:07,853 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 04:25:07,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:07" (1/1) ... [2021-03-11 04:25:07,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:07" (1/1) ... [2021-03-11 04:25:07,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 04:25:07,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 04:25:07,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 04:25:07,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 04:25:07,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:07" (1/1) ... [2021-03-11 04:25:07,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:07" (1/1) ... [2021-03-11 04:25:07,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:07" (1/1) ... [2021-03-11 04:25:07,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:07" (1/1) ... [2021-03-11 04:25:07,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:07" (1/1) ... [2021-03-11 04:25:07,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:07" (1/1) ... [2021-03-11 04:25:07,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:07" (1/1) ... [2021-03-11 04:25:07,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 04:25:07,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 04:25:07,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 04:25:07,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 04:25:07,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:07" (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 [2021-03-11 04:25:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 04:25:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure dec [2021-03-11 04:25:07,959 INFO L138 BoogieDeclarations]: Found implementation of procedure dec [2021-03-11 04:25:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 04:25:07,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 04:25:07,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-11 04:25:07,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 04:25:07,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 04:25:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure inc [2021-03-11 04:25:07,961 INFO L138 BoogieDeclarations]: Found implementation of procedure inc [2021-03-11 04:25:07,962 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 04:25:08,132 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 04:25:08,132 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-11 04:25:08,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:25:08 BoogieIcfgContainer [2021-03-11 04:25:08,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 04:25:08,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 04:25:08,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 04:25:08,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 04:25:08,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 04:25:07" (1/3) ... [2021-03-11 04:25:08,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 04:25:08, skipping insertion in model container [2021-03-11 04:25:08,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:07" (2/3) ... [2021-03-11 04:25:08,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 04:25:08, skipping insertion in model container [2021-03-11 04:25:08,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:25:08" (3/3) ... [2021-03-11 04:25:08,138 INFO L111 eAbstractionObserver]: Analyzing ICFG ThreadIdTest2.c [2021-03-11 04:25:08,141 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 04:25:08,143 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 04:25:08,144 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 04:25:08,161 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,161 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,161 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,161 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,162 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,162 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,162 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,162 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,162 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,162 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,162 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,163 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,163 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,163 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,163 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,163 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,163 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,163 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,164 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,164 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,164 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,164 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,164 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,164 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,164 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,164 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,165 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,165 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,165 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,165 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,165 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,165 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,165 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,165 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,166 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,166 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,167 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,167 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,167 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,167 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,168 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,170 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,171 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,171 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,171 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,171 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:08,175 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-11 04:25:08,187 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-11 04:25:08,199 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 04:25:08,199 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 04:25:08,200 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 04:25:08,200 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 04:25:08,200 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 04:25:08,200 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 04:25:08,200 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 04:25:08,200 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 04:25:08,206 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 42 transitions, 100 flow [2021-03-11 04:25:08,227 INFO L129 PetriNetUnfolder]: 0/51 cut-off events. [2021-03-11 04:25:08,228 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-11 04:25:08,229 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 51 events. 0/51 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-11 04:25:08,229 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 42 transitions, 100 flow [2021-03-11 04:25:08,231 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 32 transitions, 76 flow [2021-03-11 04:25:08,242 INFO L129 PetriNetUnfolder]: 0/33 cut-off events. [2021-03-11 04:25:08,242 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-11 04:25:08,242 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:25:08,243 INFO L255 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] [2021-03-11 04:25:08,243 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 04:25:08,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:25:08,246 INFO L82 PathProgramCache]: Analyzing trace with hash 800306415, now seen corresponding path program 1 times [2021-03-11 04:25:08,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:25:08,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98854537] [2021-03-11 04:25:08,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:25:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:25:08,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:08,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:25:08,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:08,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:25:08,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:25:08,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98854537] [2021-03-11 04:25:08,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:25:08,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 04:25:08,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319648717] [2021-03-11 04:25:08,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:25:08,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:25:08,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:25:08,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:25:08,378 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 42 [2021-03-11 04:25:08,380 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2021-03-11 04:25:08,380 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:25:08,380 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 42 [2021-03-11 04:25:08,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:25:08,433 INFO L129 PetriNetUnfolder]: 6/72 cut-off events. [2021-03-11 04:25:08,433 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-03-11 04:25:08,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 72 events. 6/72 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 182 event pairs, 4 based on Foata normal form. 6/75 useless extension candidates. Maximal degree in co-relation 72. Up to 19 conditions per place. [2021-03-11 04:25:08,435 INFO L132 encePairwiseOnDemand]: 38/42 looper letters, 9 selfloop transitions, 3 changer transitions 0/36 dead transitions. [2021-03-11 04:25:08,435 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 36 transitions, 108 flow [2021-03-11 04:25:08,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:25:08,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:25:08,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 112 transitions. [2021-03-11 04:25:08,442 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2021-03-11 04:25:08,442 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 112 transitions. [2021-03-11 04:25:08,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 112 transitions. [2021-03-11 04:25:08,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:25:08,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 112 transitions. [2021-03-11 04:25:08,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2021-03-11 04:25:08,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:25:08,448 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:25:08,449 INFO L185 Difference]: Start difference. First operand has 38 places, 32 transitions, 76 flow. Second operand 3 states and 112 transitions. [2021-03-11 04:25:08,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 36 transitions, 108 flow [2021-03-11 04:25:08,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 36 transitions, 100 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-11 04:25:08,453 INFO L241 Difference]: Finished difference. Result has 37 places, 34 transitions, 87 flow [2021-03-11 04:25:08,454 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=37, PETRI_TRANSITIONS=34} [2021-03-11 04:25:08,455 INFO L335 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2021-03-11 04:25:08,455 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 34 transitions, 87 flow [2021-03-11 04:25:08,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2021-03-11 04:25:08,455 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:25:08,455 INFO L255 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] [2021-03-11 04:25:08,456 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 04:25:08,456 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 04:25:08,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:25:08,456 INFO L82 PathProgramCache]: Analyzing trace with hash 467385764, now seen corresponding path program 1 times [2021-03-11 04:25:08,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:25:08,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624410764] [2021-03-11 04:25:08,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:25:08,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:25:08,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:08,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:25:08,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:08,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:25:08,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:08,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:25:08,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:08,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:25:08,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:08,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:25:08,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:08,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:25:08,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:08,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 04:25:08,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:25:08,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624410764] [2021-03-11 04:25:08,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:25:08,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 04:25:08,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299691842] [2021-03-11 04:25:08,596 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 04:25:08,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:25:08,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 04:25:08,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-11 04:25:08,598 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 42 [2021-03-11 04:25:08,599 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 34 transitions, 87 flow. Second operand has 8 states, 8 states have (on average 30.375) internal successors, (243), 8 states have internal predecessors, (243), 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) [2021-03-11 04:25:08,599 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:25:08,599 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 42 [2021-03-11 04:25:08,599 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:25:08,743 INFO L129 PetriNetUnfolder]: 24/124 cut-off events. [2021-03-11 04:25:08,743 INFO L130 PetriNetUnfolder]: For 37/41 co-relation queries the response was YES. [2021-03-11 04:25:08,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 124 events. 24/124 cut-off events. For 37/41 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 433 event pairs, 9 based on Foata normal form. 2/122 useless extension candidates. Maximal degree in co-relation 154. Up to 54 conditions per place. [2021-03-11 04:25:08,744 INFO L132 encePairwiseOnDemand]: 33/42 looper letters, 13 selfloop transitions, 8 changer transitions 14/55 dead transitions. [2021-03-11 04:25:08,745 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 55 transitions, 222 flow [2021-03-11 04:25:08,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 04:25:08,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 04:25:08,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 354 transitions. [2021-03-11 04:25:08,747 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7662337662337663 [2021-03-11 04:25:08,747 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 354 transitions. [2021-03-11 04:25:08,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 354 transitions. [2021-03-11 04:25:08,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:25:08,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 354 transitions. [2021-03-11 04:25:08,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 32.18181818181818) internal successors, (354), 11 states have internal predecessors, (354), 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) [2021-03-11 04:25:08,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 42.0) internal successors, (504), 12 states have internal predecessors, (504), 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) [2021-03-11 04:25:08,752 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 42.0) internal successors, (504), 12 states have internal predecessors, (504), 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) [2021-03-11 04:25:08,752 INFO L185 Difference]: Start difference. First operand has 37 places, 34 transitions, 87 flow. Second operand 11 states and 354 transitions. [2021-03-11 04:25:08,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 55 transitions, 222 flow [2021-03-11 04:25:08,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 55 transitions, 217 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:25:08,754 INFO L241 Difference]: Finished difference. Result has 54 places, 39 transitions, 149 flow [2021-03-11 04:25:08,754 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=149, PETRI_PLACES=54, PETRI_TRANSITIONS=39} [2021-03-11 04:25:08,755 INFO L335 CegarLoopForPetriNet]: 38 programPoint places, 16 predicate places. [2021-03-11 04:25:08,755 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 39 transitions, 149 flow [2021-03-11 04:25:08,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 30.375) internal successors, (243), 8 states have internal predecessors, (243), 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) [2021-03-11 04:25:08,755 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:25:08,755 INFO L255 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] [2021-03-11 04:25:08,755 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 04:25:08,755 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 04:25:08,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:25:08,756 INFO L82 PathProgramCache]: Analyzing trace with hash 15750372, now seen corresponding path program 2 times [2021-03-11 04:25:08,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:25:08,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996212950] [2021-03-11 04:25:08,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:25:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:25:08,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:08,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:25:08,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:08,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:25:08,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:08,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:25:08,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:08,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 04:25:08,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:25:08,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996212950] [2021-03-11 04:25:08,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:25:08,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 04:25:08,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804019413] [2021-03-11 04:25:08,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 04:25:08,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:25:08,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 04:25:08,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 04:25:08,793 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 42 [2021-03-11 04:25:08,793 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 39 transitions, 149 flow. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 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) [2021-03-11 04:25:08,794 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:25:08,794 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 42 [2021-03-11 04:25:08,794 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:25:08,856 INFO L129 PetriNetUnfolder]: 8/74 cut-off events. [2021-03-11 04:25:08,856 INFO L130 PetriNetUnfolder]: For 97/97 co-relation queries the response was YES. [2021-03-11 04:25:08,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 74 events. 8/74 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 178 event pairs, 5 based on Foata normal form. 2/74 useless extension candidates. Maximal degree in co-relation 179. Up to 30 conditions per place. [2021-03-11 04:25:08,857 INFO L132 encePairwiseOnDemand]: 36/42 looper letters, 15 selfloop transitions, 3 changer transitions 3/43 dead transitions. [2021-03-11 04:25:08,857 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 43 transitions, 217 flow [2021-03-11 04:25:08,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-11 04:25:08,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-11 04:25:08,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 204 transitions. [2021-03-11 04:25:08,858 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8095238095238095 [2021-03-11 04:25:08,859 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 204 transitions. [2021-03-11 04:25:08,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 204 transitions. [2021-03-11 04:25:08,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:25:08,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 204 transitions. [2021-03-11 04:25:08,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 34.0) internal successors, (204), 6 states have internal predecessors, (204), 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) [2021-03-11 04:25:08,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 42.0) internal successors, (294), 7 states have internal predecessors, (294), 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) [2021-03-11 04:25:08,860 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 42.0) internal successors, (294), 7 states have internal predecessors, (294), 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) [2021-03-11 04:25:08,860 INFO L185 Difference]: Start difference. First operand has 54 places, 39 transitions, 149 flow. Second operand 6 states and 204 transitions. [2021-03-11 04:25:08,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 43 transitions, 217 flow [2021-03-11 04:25:08,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 43 transitions, 180 flow, removed 16 selfloop flow, removed 5 redundant places. [2021-03-11 04:25:08,863 INFO L241 Difference]: Finished difference. Result has 52 places, 39 transitions, 137 flow [2021-03-11 04:25:08,863 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=137, PETRI_PLACES=52, PETRI_TRANSITIONS=39} [2021-03-11 04:25:08,863 INFO L335 CegarLoopForPetriNet]: 38 programPoint places, 14 predicate places. [2021-03-11 04:25:08,863 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 39 transitions, 137 flow [2021-03-11 04:25:08,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 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) [2021-03-11 04:25:08,863 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:25:08,864 INFO L255 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] [2021-03-11 04:25:08,864 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 04:25:08,864 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 04:25:08,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:25:08,864 INFO L82 PathProgramCache]: Analyzing trace with hash -230879976, now seen corresponding path program 3 times [2021-03-11 04:25:08,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:25:08,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451487008] [2021-03-11 04:25:08,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:25:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:25:08,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:08,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:25:08,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:08,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:25:08,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:08,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:25:08,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:08,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 04:25:08,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:25:08,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451487008] [2021-03-11 04:25:08,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:25:08,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 04:25:08,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786557295] [2021-03-11 04:25:08,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 04:25:08,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:25:08,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 04:25:08,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 04:25:08,899 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 42 [2021-03-11 04:25:08,899 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 39 transitions, 137 flow. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 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) [2021-03-11 04:25:08,899 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:25:08,899 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 42 [2021-03-11 04:25:08,899 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:25:08,952 INFO L129 PetriNetUnfolder]: 7/79 cut-off events. [2021-03-11 04:25:08,952 INFO L130 PetriNetUnfolder]: For 81/83 co-relation queries the response was YES. [2021-03-11 04:25:08,953 INFO L84 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 79 events. 7/79 cut-off events. For 81/83 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 211 event pairs, 6 based on Foata normal form. 2/80 useless extension candidates. Maximal degree in co-relation 164. Up to 31 conditions per place. [2021-03-11 04:25:08,954 INFO L132 encePairwiseOnDemand]: 36/42 looper letters, 11 selfloop transitions, 4 changer transitions 5/42 dead transitions. [2021-03-11 04:25:08,954 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 42 transitions, 199 flow [2021-03-11 04:25:08,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-11 04:25:08,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-11 04:25:08,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 204 transitions. [2021-03-11 04:25:08,955 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8095238095238095 [2021-03-11 04:25:08,955 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 204 transitions. [2021-03-11 04:25:08,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 204 transitions. [2021-03-11 04:25:08,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:25:08,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 204 transitions. [2021-03-11 04:25:08,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 34.0) internal successors, (204), 6 states have internal predecessors, (204), 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) [2021-03-11 04:25:08,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 42.0) internal successors, (294), 7 states have internal predecessors, (294), 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) [2021-03-11 04:25:08,958 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 42.0) internal successors, (294), 7 states have internal predecessors, (294), 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) [2021-03-11 04:25:08,958 INFO L185 Difference]: Start difference. First operand has 52 places, 39 transitions, 137 flow. Second operand 6 states and 204 transitions. [2021-03-11 04:25:08,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 42 transitions, 199 flow [2021-03-11 04:25:08,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 42 transitions, 181 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-11 04:25:08,963 INFO L241 Difference]: Finished difference. Result has 54 places, 37 transitions, 137 flow [2021-03-11 04:25:08,963 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=137, PETRI_PLACES=54, PETRI_TRANSITIONS=37} [2021-03-11 04:25:08,963 INFO L335 CegarLoopForPetriNet]: 38 programPoint places, 16 predicate places. [2021-03-11 04:25:08,963 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 37 transitions, 137 flow [2021-03-11 04:25:08,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 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) [2021-03-11 04:25:08,963 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:25:08,964 INFO L255 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] [2021-03-11 04:25:08,964 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 04:25:08,964 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 04:25:08,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:25:08,964 INFO L82 PathProgramCache]: Analyzing trace with hash 615999610, now seen corresponding path program 4 times [2021-03-11 04:25:08,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:25:08,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298923724] [2021-03-11 04:25:08,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:25:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:25:08,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:08,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:25:08,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:08,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:25:08,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:08,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:25:09,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:09,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:25:09,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:09,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:25:09,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:09,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:25:09,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:09,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 04:25:09,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:25:09,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298923724] [2021-03-11 04:25:09,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:25:09,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 04:25:09,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48347866] [2021-03-11 04:25:09,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 04:25:09,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:25:09,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 04:25:09,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-11 04:25:09,044 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 42 [2021-03-11 04:25:09,044 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 37 transitions, 137 flow. Second operand has 8 states, 8 states have (on average 30.375) internal successors, (243), 8 states have internal predecessors, (243), 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) [2021-03-11 04:25:09,044 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:25:09,044 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 42 [2021-03-11 04:25:09,044 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:25:09,155 INFO L129 PetriNetUnfolder]: 6/66 cut-off events. [2021-03-11 04:25:09,156 INFO L130 PetriNetUnfolder]: For 87/87 co-relation queries the response was YES. [2021-03-11 04:25:09,156 INFO L84 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 66 events. 6/66 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 114 event pairs, 1 based on Foata normal form. 2/68 useless extension candidates. Maximal degree in co-relation 147. Up to 17 conditions per place. [2021-03-11 04:25:09,156 INFO L132 encePairwiseOnDemand]: 33/42 looper letters, 12 selfloop transitions, 8 changer transitions 6/45 dead transitions. [2021-03-11 04:25:09,157 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 45 transitions, 235 flow [2021-03-11 04:25:09,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 04:25:09,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 04:25:09,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 344 transitions. [2021-03-11 04:25:09,158 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7445887445887446 [2021-03-11 04:25:09,158 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 344 transitions. [2021-03-11 04:25:09,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 344 transitions. [2021-03-11 04:25:09,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:25:09,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 344 transitions. [2021-03-11 04:25:09,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.272727272727273) internal successors, (344), 11 states have internal predecessors, (344), 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) [2021-03-11 04:25:09,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 42.0) internal successors, (504), 12 states have internal predecessors, (504), 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) [2021-03-11 04:25:09,161 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 42.0) internal successors, (504), 12 states have internal predecessors, (504), 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) [2021-03-11 04:25:09,161 INFO L185 Difference]: Start difference. First operand has 54 places, 37 transitions, 137 flow. Second operand 11 states and 344 transitions. [2021-03-11 04:25:09,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 45 transitions, 235 flow [2021-03-11 04:25:09,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 45 transitions, 185 flow, removed 11 selfloop flow, removed 9 redundant places. [2021-03-11 04:25:09,164 INFO L241 Difference]: Finished difference. Result has 59 places, 38 transitions, 153 flow [2021-03-11 04:25:09,164 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=153, PETRI_PLACES=59, PETRI_TRANSITIONS=38} [2021-03-11 04:25:09,164 INFO L335 CegarLoopForPetriNet]: 38 programPoint places, 21 predicate places. [2021-03-11 04:25:09,164 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 38 transitions, 153 flow [2021-03-11 04:25:09,165 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 30.375) internal successors, (243), 8 states have internal predecessors, (243), 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) [2021-03-11 04:25:09,165 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:25:09,165 INFO L255 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] [2021-03-11 04:25:09,165 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 04:25:09,165 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 04:25:09,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:25:09,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1940724403, now seen corresponding path program 1 times [2021-03-11 04:25:09,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:25:09,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633830075] [2021-03-11 04:25:09,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:25:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:25:09,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:09,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:25:09,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:09,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 04:25:09,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:09,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 04:25:09,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:09,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 04:25:09,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:09,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:25:09,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:09,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 04:25:09,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:09,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 04:25:09,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:09,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:25:09,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:25:09,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633830075] [2021-03-11 04:25:09,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:25:09,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 04:25:09,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497892654] [2021-03-11 04:25:09,257 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 04:25:09,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:25:09,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 04:25:09,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-11 04:25:09,258 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 42 [2021-03-11 04:25:09,259 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 38 transitions, 153 flow. Second operand has 8 states, 8 states have (on average 28.25) internal successors, (226), 8 states have internal predecessors, (226), 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) [2021-03-11 04:25:09,259 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:25:09,259 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 42 [2021-03-11 04:25:09,259 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:25:09,317 INFO L129 PetriNetUnfolder]: 1/32 cut-off events. [2021-03-11 04:25:09,317 INFO L130 PetriNetUnfolder]: For 13/17 co-relation queries the response was YES. [2021-03-11 04:25:09,317 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 32 events. 1/32 cut-off events. For 13/17 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 34 event pairs, 0 based on Foata normal form. 4/36 useless extension candidates. Maximal degree in co-relation 72. Up to 6 conditions per place. [2021-03-11 04:25:09,319 INFO L132 encePairwiseOnDemand]: 36/42 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2021-03-11 04:25:09,319 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 30 transitions, 136 flow [2021-03-11 04:25:09,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 04:25:09,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-11 04:25:09,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 198 transitions. [2021-03-11 04:25:09,319 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.673469387755102 [2021-03-11 04:25:09,320 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 198 transitions. [2021-03-11 04:25:09,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 198 transitions. [2021-03-11 04:25:09,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:25:09,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 198 transitions. [2021-03-11 04:25:09,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 28.285714285714285) internal successors, (198), 7 states have internal predecessors, (198), 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) [2021-03-11 04:25:09,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 42.0) internal successors, (336), 8 states have internal predecessors, (336), 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) [2021-03-11 04:25:09,321 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 42.0) internal successors, (336), 8 states have internal predecessors, (336), 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) [2021-03-11 04:25:09,321 INFO L185 Difference]: Start difference. First operand has 59 places, 38 transitions, 153 flow. Second operand 7 states and 198 transitions. [2021-03-11 04:25:09,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 30 transitions, 136 flow [2021-03-11 04:25:09,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 30 transitions, 123 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-03-11 04:25:09,322 INFO L241 Difference]: Finished difference. Result has 48 places, 0 transitions, 0 flow [2021-03-11 04:25:09,322 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=48, PETRI_TRANSITIONS=0} [2021-03-11 04:25:09,322 INFO L335 CegarLoopForPetriNet]: 38 programPoint places, 10 predicate places. [2021-03-11 04:25:09,322 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 0 transitions, 0 flow [2021-03-11 04:25:09,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.25) internal successors, (226), 8 states have internal predecessors, (226), 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) [2021-03-11 04:25:09,322 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 04:25:09,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 04:25:09 BasicIcfg [2021-03-11 04:25:09,326 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 04:25:09,327 INFO L168 Benchmark]: Toolchain (without parser) took 1634.71 ms. Allocated memory was 255.9 MB in the beginning and 348.1 MB in the end (delta: 92.3 MB). Free memory was 235.0 MB in the beginning and 294.8 MB in the end (delta: -59.8 MB). Peak memory consumption was 32.0 MB. Max. memory is 16.0 GB. [2021-03-11 04:25:09,327 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 255.9 MB. Free memory was 237.3 MB in the beginning and 237.1 MB in the end (delta: 157.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 04:25:09,328 INFO L168 Benchmark]: CACSL2BoogieTranslator took 149.34 ms. Allocated memory was 255.9 MB in the beginning and 348.1 MB in the end (delta: 92.3 MB). Free memory was 234.3 MB in the beginning and 332.5 MB in the end (delta: -98.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-03-11 04:25:09,329 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.53 ms. Allocated memory is still 348.1 MB. Free memory was 332.5 MB in the beginning and 331.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 04:25:09,332 INFO L168 Benchmark]: Boogie Preprocessor took 19.23 ms. Allocated memory is still 348.1 MB. Free memory was 331.5 MB in the beginning and 329.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 04:25:09,332 INFO L168 Benchmark]: RCFGBuilder took 237.13 ms. Allocated memory is still 348.1 MB. Free memory was 329.9 MB in the beginning and 316.1 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-11 04:25:09,332 INFO L168 Benchmark]: TraceAbstraction took 1191.93 ms. Allocated memory is still 348.1 MB. Free memory was 315.4 MB in the beginning and 294.8 MB in the end (delta: 20.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-03-11 04:25:09,339 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 255.9 MB. Free memory was 237.3 MB in the beginning and 237.1 MB in the end (delta: 157.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 149.34 ms. Allocated memory was 255.9 MB in the beginning and 348.1 MB in the end (delta: 92.3 MB). Free memory was 234.3 MB in the beginning and 332.5 MB in the end (delta: -98.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 22.53 ms. Allocated memory is still 348.1 MB. Free memory was 332.5 MB in the beginning and 331.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.23 ms. Allocated memory is still 348.1 MB. Free memory was 331.5 MB in the beginning and 329.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 237.13 ms. Allocated memory is still 348.1 MB. Free memory was 329.9 MB in the beginning and 316.1 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1191.93 ms. Allocated memory is still 348.1 MB. Free memory was 315.4 MB in the beginning and 294.8 MB in the end (delta: 20.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 37]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 10.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1126.1ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 559.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 31.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 63 SDtfs, 30 SDslu, 74 SDs, 0 SdLazy, 259 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 177.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 302.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=153occurred in iteration=5, InterpolantAutomatonStates: 44, 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: 12.0ms SsaConstructionTime, 70.2ms SatisfiabilityAnalysisTime, 349.6ms InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 498 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...