/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 09:13:29,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 09:13:29,552 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 09:13:29,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 09:13:29,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 09:13:29,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 09:13:29,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 09:13:29,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 09:13:29,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 09:13:29,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 09:13:29,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 09:13:29,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 09:13:29,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 09:13:29,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 09:13:29,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 09:13:29,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 09:13:29,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 09:13:29,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 09:13:29,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 09:13:29,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 09:13:29,608 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 09:13:29,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 09:13:29,610 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 09:13:29,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 09:13:29,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 09:13:29,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 09:13:29,616 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 09:13:29,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 09:13:29,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 09:13:29,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 09:13:29,618 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 09:13:29,619 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 09:13:29,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 09:13:29,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 09:13:29,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 09:13:29,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 09:13:29,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 09:13:29,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 09:13:29,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 09:13:29,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 09:13:29,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 09:13:29,626 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-RepeatedSemanticLbe.epf [2021-06-11 09:13:29,651 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 09:13:29,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 09:13:29,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 09:13:29,653 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 09:13:29,653 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 09:13:29,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 09:13:29,653 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 09:13:29,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 09:13:29,653 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 09:13:29,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 09:13:29,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 09:13:29,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 09:13:29,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 09:13:29,654 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 09:13:29,655 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 09:13:29,655 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 09:13:29,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 09:13:29,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 09:13:29,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 09:13:29,655 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 09:13:29,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 09:13:29,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 09:13:29,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 09:13:29,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 09:13:29,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 09:13:29,656 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 09:13:29,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 09:13:29,656 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 09:13:29,656 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 09:13:29,656 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 09:13:29,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 09:13:29,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 09:13:29,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 09:13:29,904 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 09:13:29,905 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 09:13:29,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2021-06-11 09:13:29,950 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af294fe99/ffdc8b6a964d4a498e3bcffefdae1f62/FLAGbac2b7550 [2021-06-11 09:13:30,298 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 09:13:30,298 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2021-06-11 09:13:30,299 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-11 09:13:30,299 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-11 09:13:30,320 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af294fe99/ffdc8b6a964d4a498e3bcffefdae1f62/FLAGbac2b7550 [2021-06-11 09:13:30,737 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af294fe99/ffdc8b6a964d4a498e3bcffefdae1f62 [2021-06-11 09:13:30,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 09:13:30,742 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 09:13:30,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 09:13:30,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 09:13:30,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 09:13:30,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 09:13:30" (1/1) ... [2021-06-11 09:13:30,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aa88076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:13:30, skipping insertion in model container [2021-06-11 09:13:30,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 09:13:30" (1/1) ... [2021-06-11 09:13:30,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 09:13:30,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 09:13:30,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 09:13:30,897 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 09:13:30,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 09:13:30,917 INFO L208 MainTranslator]: Completed translation [2021-06-11 09:13:30,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:13:30 WrapperNode [2021-06-11 09:13:30,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 09:13:30,918 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 09:13:30,918 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 09:13:30,918 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 09:13:30,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:13:30" (1/1) ... [2021-06-11 09:13:30,929 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:13:30" (1/1) ... [2021-06-11 09:13:30,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 09:13:30,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 09:13:30,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 09:13:30,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 09:13:30,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:13:30" (1/1) ... [2021-06-11 09:13:30,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:13:30" (1/1) ... [2021-06-11 09:13:30,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:13:30" (1/1) ... [2021-06-11 09:13:30,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:13:30" (1/1) ... [2021-06-11 09:13:30,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:13:30" (1/1) ... [2021-06-11 09:13:30,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:13:30" (1/1) ... [2021-06-11 09:13:30,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:13:30" (1/1) ... [2021-06-11 09:13:30,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 09:13:30,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 09:13:30,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 09:13:30,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 09:13:30,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:13:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 09:13:31,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 09:13:31,011 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-11 09:13:31,012 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-11 09:13:31,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 09:13:31,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 09:13:31,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-11 09:13:31,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 09:13:31,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 09:13:31,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 09:13:31,014 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 09:13:31,154 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 09:13:31,154 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-11 09:13:31,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 09:13:31 BoogieIcfgContainer [2021-06-11 09:13:31,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 09:13:31,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 09:13:31,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 09:13:31,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 09:13:31,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 09:13:30" (1/3) ... [2021-06-11 09:13:31,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7569e591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 09:13:31, skipping insertion in model container [2021-06-11 09:13:31,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:13:30" (2/3) ... [2021-06-11 09:13:31,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7569e591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 09:13:31, skipping insertion in model container [2021-06-11 09:13:31,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 09:13:31" (3/3) ... [2021-06-11 09:13:31,159 INFO L111 eAbstractionObserver]: Analyzing ICFG forkMultipleTimes.c [2021-06-11 09:13:31,163 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 09:13:31,164 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 09:13:31,165 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 09:13:31,183 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,183 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,183 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,183 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,184 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,184 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,184 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,184 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,184 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,184 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,184 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,184 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,185 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,185 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,185 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,185 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,185 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,185 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,185 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,185 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,186 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,186 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,186 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,186 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,186 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,186 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,186 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,186 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,187 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,187 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,187 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,187 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,187 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,187 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,187 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,187 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,188 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,188 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,188 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,188 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,188 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,188 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,188 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,188 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,188 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,189 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,189 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,189 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,189 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,189 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,189 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,190 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,190 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,190 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,190 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,190 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,190 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,190 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,190 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,190 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,191 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,191 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,191 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,191 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,191 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,191 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,191 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,191 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,192 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,192 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,192 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,192 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,192 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,192 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,192 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,192 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,192 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,193 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,193 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,193 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,193 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,193 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,193 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,193 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,193 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,194 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,194 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,194 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,194 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,194 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,195 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,196 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,196 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,196 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,196 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,196 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,196 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,199 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,199 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,199 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,199 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,199 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,199 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,200 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,201 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,201 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,201 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,201 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,202 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,202 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,202 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:13:31,210 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-06-11 09:13:31,222 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-11 09:13:31,234 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 09:13:31,234 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 09:13:31,234 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 09:13:31,234 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 09:13:31,234 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 09:13:31,234 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 09:13:31,234 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 09:13:31,234 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 09:13:31,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 77 transitions, 196 flow [2021-06-11 09:13:31,290 INFO L129 PetriNetUnfolder]: 5/85 cut-off events. [2021-06-11 09:13:31,290 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-06-11 09:13:31,295 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 85 events. 5/85 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 114 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 50. Up to 6 conditions per place. [2021-06-11 09:13:31,295 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 77 transitions, 196 flow [2021-06-11 09:13:31,302 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 61 transitions, 158 flow [2021-06-11 09:13:31,303 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:13:31,310 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 61 transitions, 158 flow [2021-06-11 09:13:31,313 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 61 transitions, 158 flow [2021-06-11 09:13:31,314 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 61 transitions, 158 flow [2021-06-11 09:13:31,335 INFO L129 PetriNetUnfolder]: 5/72 cut-off events. [2021-06-11 09:13:31,335 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-06-11 09:13:31,336 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 72 events. 5/72 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 110 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 50. Up to 6 conditions per place. [2021-06-11 09:13:31,339 INFO L151 LiptonReduction]: Number of co-enabled transitions 1008 [2021-06-11 09:13:31,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:31,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:13:31,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:31,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 09:13:31,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:31,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 09:13:31,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 09:13:31,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:31,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:13:31,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:31,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:13:31,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:31,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:13:31,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:31,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:13:31,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:31,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:13:31,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:31,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:13:31,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:31,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:13:31,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:31,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:13:31,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:31,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:13:31,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:31,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:13:31,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:31,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:13:31,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:31,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:13:31,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:31,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 09:13:31,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:31,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:13:31,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:31,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:13:31,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:31,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:13:32,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 09:13:32,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 09:13:32,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 09:13:32,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:13:32,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:13:32,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 09:13:32,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 09:13:32,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 09:13:32,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:13:32,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 09:13:32,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 09:13:32,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 09:13:32,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 09:13:32,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 09:13:32,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 09:13:32,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 09:13:32,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 09:13:32,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 09:13:32,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 09:13:32,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 09:13:32,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 09:13:32,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 09:13:32,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 09:13:32,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-11 09:13:32,692 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-11 09:13:32,857 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-11 09:13:32,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 09:13:32,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 09:13:32,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 09:13:32,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 09:13:32,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 09:13:32,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 09:13:32,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 09:13:32,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 09:13:32,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 09:13:32,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 09:13:32,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-11 09:13:32,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 09:13:32,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 09:13:32,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 09:13:32,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-11 09:13:32,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 09:13:32,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 09:13:32,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:32,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-06-11 09:13:32,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-06-11 09:13:32,949 INFO L163 LiptonReduction]: Checked pairs total: 1360 [2021-06-11 09:13:32,949 INFO L165 LiptonReduction]: Total number of compositions: 33 [2021-06-11 09:13:32,950 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1648 [2021-06-11 09:13:32,958 INFO L129 PetriNetUnfolder]: 5/34 cut-off events. [2021-06-11 09:13:32,958 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-06-11 09:13:32,959 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:13:32,959 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 09:13:32,959 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 09:13:32,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:13:32,962 INFO L82 PathProgramCache]: Analyzing trace with hash -2033586645, now seen corresponding path program 1 times [2021-06-11 09:13:32,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:13:32,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984758148] [2021-06-11 09:13:32,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:13:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:13:33,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:33,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 09:13:33,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:33,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 09:13:33,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:33,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 09:13:33,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:33,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 09:13:33,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:33,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 09:13:33,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:33,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 09:13:33,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:13:33,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984758148] [2021-06-11 09:13:33,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:13:33,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-11 09:13:33,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339676641] [2021-06-11 09:13:33,132 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-11 09:13:33,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:13:33,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-11 09:13:33,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-11 09:13:33,144 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 110 [2021-06-11 09:13:33,148 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 28 transitions, 92 flow. Second operand has 8 states, 8 states have (on average 55.375) internal successors, (443), 8 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 09:13:33,148 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:13:33,148 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 110 [2021-06-11 09:13:33,149 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:13:33,398 INFO L129 PetriNetUnfolder]: 628/1097 cut-off events. [2021-06-11 09:13:33,399 INFO L130 PetriNetUnfolder]: For 115/115 co-relation queries the response was YES. [2021-06-11 09:13:33,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2241 conditions, 1097 events. 628/1097 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 5295 event pairs, 58 based on Foata normal form. 1/1091 useless extension candidates. Maximal degree in co-relation 1922. Up to 398 conditions per place. [2021-06-11 09:13:33,405 INFO L132 encePairwiseOnDemand]: 100/110 looper letters, 61 selfloop transitions, 19 changer transitions 2/91 dead transitions. [2021-06-11 09:13:33,405 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 91 transitions, 391 flow [2021-06-11 09:13:33,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 09:13:33,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 09:13:33,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 560 transitions. [2021-06-11 09:13:33,415 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5656565656565656 [2021-06-11 09:13:33,415 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 560 transitions. [2021-06-11 09:13:33,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 560 transitions. [2021-06-11 09:13:33,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:13:33,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 560 transitions. [2021-06-11 09:13:33,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 62.22222222222222) internal successors, (560), 9 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 09:13:33,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 110.0) internal successors, (1100), 10 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 09:13:33,425 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 110.0) internal successors, (1100), 10 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 09:13:33,426 INFO L185 Difference]: Start difference. First operand has 32 places, 28 transitions, 92 flow. Second operand 9 states and 560 transitions. [2021-06-11 09:13:33,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 91 transitions, 391 flow [2021-06-11 09:13:33,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 91 transitions, 361 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-06-11 09:13:33,431 INFO L241 Difference]: Finished difference. Result has 38 places, 46 transitions, 180 flow [2021-06-11 09:13:33,432 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=180, PETRI_PLACES=38, PETRI_TRANSITIONS=46} [2021-06-11 09:13:33,433 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 6 predicate places. [2021-06-11 09:13:33,433 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:13:33,433 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 46 transitions, 180 flow [2021-06-11 09:13:33,433 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 46 transitions, 180 flow [2021-06-11 09:13:33,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 46 transitions, 180 flow [2021-06-11 09:13:33,442 INFO L129 PetriNetUnfolder]: 46/189 cut-off events. [2021-06-11 09:13:33,442 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-06-11 09:13:33,443 INFO L84 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 189 events. 46/189 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1067 event pairs, 7 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 179. Up to 36 conditions per place. [2021-06-11 09:13:33,444 INFO L151 LiptonReduction]: Number of co-enabled transitions 434 [2021-06-11 09:13:33,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:13:33,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:13:33,473 INFO L163 LiptonReduction]: Checked pairs total: 426 [2021-06-11 09:13:33,473 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 09:13:33,473 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-06-11 09:13:33,474 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 45 transitions, 176 flow [2021-06-11 09:13:33,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.375) internal successors, (443), 8 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 09:13:33,474 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:13:33,475 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 09:13:33,475 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 09:13:33,475 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 09:13:33,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:13:33,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1908406663, now seen corresponding path program 1 times [2021-06-11 09:13:33,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:13:33,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56586098] [2021-06-11 09:13:33,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:13:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-11 09:13:33,498 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-11 09:13:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-11 09:13:33,532 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-11 09:13:33,558 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-11 09:13:33,558 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-06-11 09:13:33,559 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 09:13:33,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 09:13:33 BasicIcfg [2021-06-11 09:13:33,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 09:13:33,600 INFO L168 Benchmark]: Toolchain (without parser) took 2857.83 ms. Allocated memory is still 375.4 MB. Free memory was 337.9 MB in the beginning and 314.2 MB in the end (delta: 23.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.0 GB. [2021-06-11 09:13:33,600 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 375.4 MB. Free memory is still 356.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 09:13:33,600 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.57 ms. Allocated memory is still 375.4 MB. Free memory was 337.8 MB in the beginning and 357.5 MB in the end (delta: -19.7 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. [2021-06-11 09:13:33,600 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.75 ms. Allocated memory is still 375.4 MB. Free memory was 357.5 MB in the beginning and 356.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 09:13:33,601 INFO L168 Benchmark]: Boogie Preprocessor took 26.79 ms. Allocated memory is still 375.4 MB. Free memory was 356.5 MB in the beginning and 354.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 09:13:33,601 INFO L168 Benchmark]: RCFGBuilder took 185.93 ms. Allocated memory is still 375.4 MB. Free memory was 354.7 MB in the beginning and 336.5 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-06-11 09:13:33,601 INFO L168 Benchmark]: TraceAbstraction took 2443.17 ms. Allocated memory is still 375.4 MB. Free memory was 336.5 MB in the beginning and 314.2 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.0 GB. [2021-06-11 09:13:33,603 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 375.4 MB. Free memory is still 356.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 174.57 ms. Allocated memory is still 375.4 MB. Free memory was 337.8 MB in the beginning and 357.5 MB in the end (delta: -19.7 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 22.75 ms. Allocated memory is still 375.4 MB. Free memory was 357.5 MB in the beginning and 356.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 26.79 ms. Allocated memory is still 375.4 MB. Free memory was 356.5 MB in the beginning and 354.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 185.93 ms. Allocated memory is still 375.4 MB. Free memory was 354.7 MB in the beginning and 336.5 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2443.17 ms. Allocated memory is still 375.4 MB. Free memory was 336.5 MB in the beginning and 314.2 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1636.2ms, 65 PlacesBefore, 32 PlacesAfterwards, 61 TransitionsBefore, 28 TransitionsAfterwards, 1008 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 33 TotalNumberOfCompositions, 1360 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 706, positive: 657, positive conditional: 0, positive unconditional: 657, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 537, positive: 514, positive conditional: 0, positive unconditional: 514, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 537, positive: 514, positive conditional: 0, positive unconditional: 514, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 537, positive: 510, positive conditional: 0, positive unconditional: 510, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 27, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 92, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 84, negative conditional: 0, negative unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 706, positive: 143, positive conditional: 0, positive unconditional: 143, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 537, unknown conditional: 0, unknown unconditional: 537] , Statistics on independence cache: Total cache size (in pairs): 778, Positive cache size: 755, Positive conditional cache size: 0, Positive unconditional cache size: 755, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.8ms, 38 PlacesBefore, 37 PlacesAfterwards, 46 TransitionsBefore, 45 TransitionsAfterwards, 434 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 426 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 280, positive: 259, positive conditional: 0, positive unconditional: 259, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 25, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 25, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 25, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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: 280, positive: 234, positive conditional: 0, positive unconditional: 234, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 25, unknown conditional: 0, unknown unconditional: 25] , Statistics on independence cache: Total cache size (in pairs): 819, Positive cache size: 796, Positive conditional cache size: 0, Positive unconditional cache size: 796, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - CounterExampleResult [Line: 37]: assertion can be violated assertion can be violated We found a FailurePath: [L13] 0 int counter = 0; [L23] 0 int val = 0; [L25] 0 pthread_t first_thread_id; [L26] 0 pthread_t second_thread_id; [L27] 0 pthread_t third_thread_id; [L29] FCALL, FORK 0 pthread_create(&first_thread_id, NULL, foo, &val) VAL [counter=0, n={5:0}] [L16] 1 int *x = (int *)n; [L17] EXPR 1 ++counter VAL [++counter=1, counter=0, n={5:0}, n={5:0}, x={5:0}] [L30] FCALL, FORK 0 pthread_create(&second_thread_id, NULL, foo, &val) VAL [++counter=1, counter=0, n={5:0}, n={5:0}, x={5:0}] [L16] 2 int *x = (int *)n; [L17] 2 ++counter VAL [++counter=1, counter=0, n={5:0}, n={5:0}, x={5:0}] [L31] FCALL, FORK 0 pthread_create(&third_thread_id, NULL, foo, &val) VAL [++counter=1, counter=0, n={5:0}, n={5:0}, x={5:0}] [L16] 3 int *x = (int *)n; [L17] 3 ++counter VAL [++counter=1, counter=0, n={5:0}, n={5:0}, x={5:0}] [L33] 0 \read(first_thread_id) VAL [++counter=1, counter=0, n={5:0}, n={5:0}, x={5:0}] [L17] EXPR 1 ++counter VAL [++counter=1, counter=1, n={5:0}, n={5:0}, x={5:0}] [L17] 1 *x = ++counter [L18] 1 return 0; [L33] FCALL, JOIN 1 pthread_join(first_thread_id, NULL) VAL [++counter=1, \result={0:0}, counter=1, n={5:0}, n={5:0}, x={5:0}] [L34] 0 \read(second_thread_id) VAL [++counter=1, \result={0:0}, counter=1, n={5:0}, n={5:0}, x={5:0}] [L17] EXPR 2 ++counter VAL [++counter=1, \result={0:0}, counter=2, n={5:0}, n={5:0}, x={5:0}] [L17] 2 *x = ++counter [L18] 2 return 0; [L34] FCALL, JOIN 2 pthread_join(second_thread_id, NULL) VAL [++counter=1, \result={0:0}, counter=2, n={5:0}, n={5:0}, x={5:0}] [L35] 0 \read(third_thread_id) VAL [++counter=1, \result={0:0}, counter=2, n={5:0}, n={5:0}, x={5:0}] [L17] EXPR 3 ++counter VAL [++counter=1, \result={0:0}, counter=3, n={5:0}, n={5:0}, x={5:0}] [L17] 3 *x = ++counter [L18] 3 return 0; [L35] FCALL, JOIN 3 pthread_join(third_thread_id, NULL) VAL [\result={0:0}, counter=3, n={5:0}, n={5:0}, x={5:0}] [L37] FCALL 0 IdentifierExpression[val] [L37] 0 CodeAnnotStmt[Assertion] VAL [\result={0:0}, counter=3, n={5:0}, n={5:0}, x={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 2328.0ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 294.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1719.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 33 SDtfs, 39 SDslu, 95 SDs, 0 SdLazy, 219 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 100.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 50.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=1, InterpolantAutomatonStates: 9, 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: 5.0ms SsaConstructionTime, 44.7ms SatisfiabilityAnalysisTime, 92.2ms InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 213 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...