/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread/stack_longest-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 14:44:44,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 14:44:44,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 14:44:44,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 14:44:44,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 14:44:44,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 14:44:44,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 14:44:44,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 14:44:44,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 14:44:44,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 14:44:44,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 14:44:44,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 14:44:44,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 14:44:44,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 14:44:44,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 14:44:44,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 14:44:44,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 14:44:44,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 14:44:44,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 14:44:44,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 14:44:44,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 14:44:44,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 14:44:44,963 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 14:44:44,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 14:44:44,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-09 14:44:44,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-09 14:44:44,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-09 14:44:44,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-09 14:44:44,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-09 14:44:44,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-09 14:44:44,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 14:44:44,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 14:44:44,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 14:44:44,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 14:44:44,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 14:44:44,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 14:44:44,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 14:44:44,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 14:44:44,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 14:44:44,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 14:44:44,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 14:44:44,977 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-09 14:44:45,000 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 14:44:45,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 14:44:45,001 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 14:44:45,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 14:44:45,001 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 14:44:45,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 14:44:45,002 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 14:44:45,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 14:44:45,002 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 14:44:45,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 14:44:45,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 14:44:45,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 14:44:45,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 14:44:45,003 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 14:44:45,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 14:44:45,004 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 14:44:45,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 14:44:45,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 14:44:45,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 14:44:45,004 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 14:44:45,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 14:44:45,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 14:44:45,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 14:44:45,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 14:44:45,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 14:44:45,006 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-10-09 14:44:45,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 14:44:45,006 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-09 14:44:45,006 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-09 14:44:45,006 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 14:44:45,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 14:44:45,324 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 14:44:45,327 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 14:44:45,329 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 14:44:45,329 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 14:44:45,330 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longest-1.i [2020-10-09 14:44:45,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e3cd9051/aed7542174d14abaaf817d72e817e9cb/FLAG9d1e23ffd [2020-10-09 14:44:45,973 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 14:44:45,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longest-1.i [2020-10-09 14:44:45,996 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e3cd9051/aed7542174d14abaaf817d72e817e9cb/FLAG9d1e23ffd [2020-10-09 14:44:46,215 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e3cd9051/aed7542174d14abaaf817d72e817e9cb [2020-10-09 14:44:46,225 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 14:44:46,228 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 14:44:46,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 14:44:46,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 14:44:46,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 14:44:46,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 02:44:46" (1/1) ... [2020-10-09 14:44:46,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5708db2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:46, skipping insertion in model container [2020-10-09 14:44:46,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 02:44:46" (1/1) ... [2020-10-09 14:44:46,247 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 14:44:46,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 14:44:46,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 14:44:46,897 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 14:44:46,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 14:44:47,093 INFO L208 MainTranslator]: Completed translation [2020-10-09 14:44:47,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:47 WrapperNode [2020-10-09 14:44:47,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 14:44:47,094 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 14:44:47,095 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 14:44:47,095 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 14:44:47,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:47" (1/1) ... [2020-10-09 14:44:47,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:47" (1/1) ... [2020-10-09 14:44:47,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 14:44:47,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 14:44:47,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 14:44:47,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 14:44:47,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:47" (1/1) ... [2020-10-09 14:44:47,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:47" (1/1) ... [2020-10-09 14:44:47,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:47" (1/1) ... [2020-10-09 14:44:47,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:47" (1/1) ... [2020-10-09 14:44:47,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:47" (1/1) ... [2020-10-09 14:44:47,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:47" (1/1) ... [2020-10-09 14:44:47,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:47" (1/1) ... [2020-10-09 14:44:47,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 14:44:47,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 14:44:47,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 14:44:47,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 14:44:47,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:47" (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 [2020-10-09 14:44:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-09 14:44:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-09 14:44:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-09 14:44:47,283 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-09 14:44:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 14:44:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 14:44:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-09 14:44:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 14:44:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-09 14:44:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-09 14:44:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 14:44:47,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 14:44:47,287 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-09 14:44:47,871 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 14:44:47,871 INFO L298 CfgBuilder]: Removed 26 assume(true) statements. [2020-10-09 14:44:47,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 02:44:47 BoogieIcfgContainer [2020-10-09 14:44:47,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 14:44:47,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 14:44:47,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 14:44:47,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 14:44:47,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 02:44:46" (1/3) ... [2020-10-09 14:44:47,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e27e83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 02:44:47, skipping insertion in model container [2020-10-09 14:44:47,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:44:47" (2/3) ... [2020-10-09 14:44:47,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e27e83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 02:44:47, skipping insertion in model container [2020-10-09 14:44:47,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 02:44:47" (3/3) ... [2020-10-09 14:44:47,884 INFO L111 eAbstractionObserver]: Analyzing ICFG stack_longest-1.i [2020-10-09 14:44:47,896 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 14:44:47,904 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-09 14:44:47,906 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 14:44:47,941 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,941 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,941 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,941 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,942 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,942 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,943 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,943 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,943 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,943 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,944 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,944 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,944 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,945 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,945 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,945 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,945 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,946 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,946 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,946 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,946 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,947 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,947 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,947 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,948 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,948 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,948 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,948 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,949 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,949 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,949 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,949 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,950 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,950 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,950 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,950 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,950 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,951 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,951 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,951 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,952 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,952 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,952 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,952 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,953 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,953 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,953 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,953 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,954 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,954 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,954 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,955 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,955 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,955 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,955 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,955 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,956 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,956 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,956 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,957 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,957 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,957 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,957 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,958 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,958 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,958 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,958 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,959 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,960 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,960 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,960 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,961 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,961 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,961 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,961 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,962 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,962 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,962 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,962 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,963 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,963 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,963 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,964 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,964 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,964 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,965 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,965 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,965 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,965 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,966 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,966 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,966 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,966 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,966 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,967 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,967 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,967 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,967 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,968 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,968 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,968 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,968 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,969 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,969 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,969 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,969 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,970 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,970 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,970 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,970 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,971 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,971 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,971 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,972 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,972 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,972 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,972 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,973 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,973 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,973 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,973 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,973 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,974 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,974 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,974 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,975 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,975 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,975 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,975 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,975 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,976 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,976 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,976 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,980 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,981 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,981 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,981 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,981 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,982 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,982 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,982 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,982 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,982 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,983 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,983 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,983 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,983 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,984 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,984 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,984 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,984 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,984 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,985 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,985 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,985 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,985 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,997 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,998 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,998 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,998 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,999 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,999 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,999 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,999 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:47,999 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:48,000 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:48,000 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:48,000 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:48,000 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:48,001 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:48,001 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:48,001 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:48,001 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:48,002 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:48,002 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:44:48,028 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-09 14:44:48,051 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 14:44:48,052 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 14:44:48,052 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 14:44:48,052 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 14:44:48,052 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 14:44:48,053 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 14:44:48,053 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 14:44:48,053 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 14:44:48,071 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 140 places, 145 transitions, 312 flow [2020-10-09 14:44:48,144 INFO L129 PetriNetUnfolder]: 11/145 cut-off events. [2020-10-09 14:44:48,144 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-09 14:44:48,152 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 145 events. 11/145 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 385 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2020-10-09 14:44:48,153 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 145 transitions, 312 flow [2020-10-09 14:44:48,161 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 133 transitions, 278 flow [2020-10-09 14:44:48,224 INFO L129 PetriNetUnfolder]: 6/115 cut-off events. [2020-10-09 14:44:48,225 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-09 14:44:48,228 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 14:44:48,229 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 14:44:48,230 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 14:44:48,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 14:44:48,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1797022071, now seen corresponding path program 1 times [2020-10-09 14:44:48,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 14:44:48,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1643630513] [2020-10-09 14:44:48,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-09 14:44:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 14:44:48,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-09 14:44:48,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:44:48,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:48,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:44:48,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:48,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1643630513] [2020-10-09 14:44:48,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 14:44:48,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-09 14:44:48,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366651737] [2020-10-09 14:44:48,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 14:44:48,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 14:44:48,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 14:44:48,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-09 14:44:48,620 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 145 [2020-10-09 14:44:48,622 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 133 transitions, 278 flow. Second operand 4 states. [2020-10-09 14:44:48,623 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 14:44:48,623 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 145 [2020-10-09 14:44:48,624 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 14:44:48,734 INFO L129 PetriNetUnfolder]: 14/254 cut-off events. [2020-10-09 14:44:48,734 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2020-10-09 14:44:48,742 INFO L80 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 254 events. 14/254 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 686 event pairs, 0 based on Foata normal form. 23/259 useless extension candidates. Maximal degree in co-relation 240. Up to 14 conditions per place. [2020-10-09 14:44:48,746 INFO L132 encePairwiseOnDemand]: 136/145 looper letters, 3 selfloop transitions, 3 changer transitions 0/130 dead transitions. [2020-10-09 14:44:48,746 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 130 transitions, 284 flow [2020-10-09 14:44:48,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 14:44:48,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-09 14:44:48,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 424 transitions. [2020-10-09 14:44:48,773 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9747126436781609 [2020-10-09 14:44:48,774 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 424 transitions. [2020-10-09 14:44:48,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 424 transitions. [2020-10-09 14:44:48,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 14:44:48,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 424 transitions. [2020-10-09 14:44:48,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-09 14:44:48,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-09 14:44:48,811 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-09 14:44:48,813 INFO L185 Difference]: Start difference. First operand has 129 places, 133 transitions, 278 flow. Second operand 3 states and 424 transitions. [2020-10-09 14:44:48,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 130 transitions, 284 flow [2020-10-09 14:44:48,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 130 transitions, 276 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-09 14:44:48,833 INFO L241 Difference]: Finished difference. Result has 128 places, 130 transitions, 279 flow [2020-10-09 14:44:48,836 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=279, PETRI_PLACES=128, PETRI_TRANSITIONS=130} [2020-10-09 14:44:48,837 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, -1 predicate places. [2020-10-09 14:44:48,838 INFO L481 AbstractCegarLoop]: Abstraction has has 128 places, 130 transitions, 279 flow [2020-10-09 14:44:48,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 14:44:48,838 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 14:44:48,838 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 14:44:49,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-09 14:44:49,052 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 14:44:49,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 14:44:49,052 INFO L82 PathProgramCache]: Analyzing trace with hash 506033560, now seen corresponding path program 1 times [2020-10-09 14:44:49,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 14:44:49,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [773384840] [2020-10-09 14:44:49,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-09 14:44:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 14:44:49,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-09 14:44:49,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:44:49,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:49,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:44:49,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:49,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [773384840] [2020-10-09 14:44:49,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 14:44:49,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-09 14:44:49,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444159937] [2020-10-09 14:44:49,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 14:44:49,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 14:44:49,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 14:44:49,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-09 14:44:49,199 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 145 [2020-10-09 14:44:49,199 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 130 transitions, 279 flow. Second operand 4 states. [2020-10-09 14:44:49,200 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 14:44:49,200 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 145 [2020-10-09 14:44:49,200 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 14:44:49,251 INFO L129 PetriNetUnfolder]: 14/273 cut-off events. [2020-10-09 14:44:49,252 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-09 14:44:49,254 INFO L80 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 273 events. 14/273 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 754 event pairs, 2 based on Foata normal form. 0/253 useless extension candidates. Maximal degree in co-relation 252. Up to 11 conditions per place. [2020-10-09 14:44:49,255 INFO L132 encePairwiseOnDemand]: 141/145 looper letters, 4 selfloop transitions, 4 changer transitions 0/133 dead transitions. [2020-10-09 14:44:49,256 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 133 transitions, 298 flow [2020-10-09 14:44:49,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 14:44:49,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-09 14:44:49,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 554 transitions. [2020-10-09 14:44:49,258 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9551724137931035 [2020-10-09 14:44:49,258 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 554 transitions. [2020-10-09 14:44:49,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 554 transitions. [2020-10-09 14:44:49,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 14:44:49,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 554 transitions. [2020-10-09 14:44:49,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-09 14:44:49,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-09 14:44:49,262 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-09 14:44:49,262 INFO L185 Difference]: Start difference. First operand has 128 places, 130 transitions, 279 flow. Second operand 4 states and 554 transitions. [2020-10-09 14:44:49,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 133 transitions, 298 flow [2020-10-09 14:44:49,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 133 transitions, 296 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-09 14:44:49,267 INFO L241 Difference]: Finished difference. Result has 133 places, 132 transitions, 302 flow [2020-10-09 14:44:49,268 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=302, PETRI_PLACES=133, PETRI_TRANSITIONS=132} [2020-10-09 14:44:49,269 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, 4 predicate places. [2020-10-09 14:44:49,269 INFO L481 AbstractCegarLoop]: Abstraction has has 133 places, 132 transitions, 302 flow [2020-10-09 14:44:49,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 14:44:49,269 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 14:44:49,269 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 14:44:49,483 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-09 14:44:49,484 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 14:44:49,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 14:44:49,484 INFO L82 PathProgramCache]: Analyzing trace with hash -729952317, now seen corresponding path program 1 times [2020-10-09 14:44:49,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 14:44:49,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77732385] [2020-10-09 14:44:49,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-09 14:44:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 14:44:49,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-09 14:44:49,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:44:49,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:49,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:44:49,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:49,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [77732385] [2020-10-09 14:44:49,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 14:44:49,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-09 14:44:49,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583879023] [2020-10-09 14:44:49,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 14:44:49,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 14:44:49,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 14:44:49,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 14:44:49,666 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 145 [2020-10-09 14:44:49,667 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 132 transitions, 302 flow. Second operand 4 states. [2020-10-09 14:44:49,667 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 14:44:49,667 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 145 [2020-10-09 14:44:49,667 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 14:44:49,777 INFO L129 PetriNetUnfolder]: 15/339 cut-off events. [2020-10-09 14:44:49,777 INFO L130 PetriNetUnfolder]: For 8/9 co-relation queries the response was YES. [2020-10-09 14:44:49,780 INFO L80 FinitePrefix]: Finished finitePrefix Result has 406 conditions, 339 events. 15/339 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1160 event pairs, 2 based on Foata normal form. 3/322 useless extension candidates. Maximal degree in co-relation 343. Up to 17 conditions per place. [2020-10-09 14:44:49,781 INFO L132 encePairwiseOnDemand]: 140/145 looper letters, 7 selfloop transitions, 4 changer transitions 0/135 dead transitions. [2020-10-09 14:44:49,781 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 135 transitions, 330 flow [2020-10-09 14:44:49,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 14:44:49,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-09 14:44:49,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 540 transitions. [2020-10-09 14:44:49,784 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9310344827586207 [2020-10-09 14:44:49,784 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 540 transitions. [2020-10-09 14:44:49,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 540 transitions. [2020-10-09 14:44:49,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 14:44:49,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 540 transitions. [2020-10-09 14:44:49,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-09 14:44:49,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-09 14:44:49,787 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-09 14:44:49,787 INFO L185 Difference]: Start difference. First operand has 133 places, 132 transitions, 302 flow. Second operand 4 states and 540 transitions. [2020-10-09 14:44:49,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 135 transitions, 330 flow [2020-10-09 14:44:49,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 135 transitions, 330 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-09 14:44:49,792 INFO L241 Difference]: Finished difference. Result has 138 places, 135 transitions, 330 flow [2020-10-09 14:44:49,793 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=330, PETRI_PLACES=138, PETRI_TRANSITIONS=135} [2020-10-09 14:44:49,793 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, 9 predicate places. [2020-10-09 14:44:49,793 INFO L481 AbstractCegarLoop]: Abstraction has has 138 places, 135 transitions, 330 flow [2020-10-09 14:44:49,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 14:44:49,793 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 14:44:49,794 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 14:44:50,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-09 14:44:50,005 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 14:44:50,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 14:44:50,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1678836827, now seen corresponding path program 1 times [2020-10-09 14:44:50,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 14:44:50,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [56274066] [2020-10-09 14:44:50,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-09 14:44:50,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 14:44:50,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-09 14:44:50,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:44:50,122 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:50,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:44:50,165 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:50,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [56274066] [2020-10-09 14:44:50,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [323799667] [2020-10-09 14:44:50,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-09 14:44:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 14:44:50,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-09 14:44:50,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:44:50,360 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:50,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:44:50,381 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:50,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548977124] [2020-10-09 14:44:50,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-09 14:44:50,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 14:44:50,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-09 14:44:50,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:44:50,491 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:50,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:44:50,510 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:50,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-10-09 14:44:50,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2020-10-09 14:44:50,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904643373] [2020-10-09 14:44:50,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-09 14:44:50,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 14:44:50,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-09 14:44:50,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-09 14:44:50,827 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 145 [2020-10-09 14:44:50,828 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 135 transitions, 330 flow. Second operand 8 states. [2020-10-09 14:44:50,828 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 14:44:50,828 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 145 [2020-10-09 14:44:50,828 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 14:44:51,039 INFO L129 PetriNetUnfolder]: 55/781 cut-off events. [2020-10-09 14:44:51,039 INFO L130 PetriNetUnfolder]: For 69/90 co-relation queries the response was YES. [2020-10-09 14:44:51,047 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1028 conditions, 781 events. 55/781 cut-off events. For 69/90 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3713 event pairs, 0 based on Foata normal form. 5/738 useless extension candidates. Maximal degree in co-relation 925. Up to 45 conditions per place. [2020-10-09 14:44:51,053 INFO L132 encePairwiseOnDemand]: 139/145 looper letters, 12 selfloop transitions, 14 changer transitions 0/152 dead transitions. [2020-10-09 14:44:51,053 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 152 transitions, 432 flow [2020-10-09 14:44:51,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-09 14:44:51,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-09 14:44:51,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1348 transitions. [2020-10-09 14:44:51,058 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9296551724137931 [2020-10-09 14:44:51,059 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1348 transitions. [2020-10-09 14:44:51,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1348 transitions. [2020-10-09 14:44:51,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 14:44:51,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1348 transitions. [2020-10-09 14:44:51,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-09 14:44:51,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-09 14:44:51,069 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-09 14:44:51,069 INFO L185 Difference]: Start difference. First operand has 138 places, 135 transitions, 330 flow. Second operand 10 states and 1348 transitions. [2020-10-09 14:44:51,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 152 transitions, 432 flow [2020-10-09 14:44:51,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 152 transitions, 430 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-09 14:44:51,075 INFO L241 Difference]: Finished difference. Result has 149 places, 148 transitions, 422 flow [2020-10-09 14:44:51,076 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=422, PETRI_PLACES=149, PETRI_TRANSITIONS=148} [2020-10-09 14:44:51,076 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, 20 predicate places. [2020-10-09 14:44:51,077 INFO L481 AbstractCegarLoop]: Abstraction has has 149 places, 148 transitions, 422 flow [2020-10-09 14:44:51,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-09 14:44:51,077 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 14:44:51,077 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 14:44:51,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3,6 cvc4 --incremental --print-success --lang smt --rewrite-divk,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-09 14:44:51,693 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 14:44:51,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 14:44:51,694 INFO L82 PathProgramCache]: Analyzing trace with hash 42941256, now seen corresponding path program 1 times [2020-10-09 14:44:51,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 14:44:51,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900580384] [2020-10-09 14:44:51,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-09 14:44:51,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 14:44:51,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-09 14:44:51,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:44:51,816 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-09 14:44:51,817 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 14:44:51,820 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 14:44:51,820 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 14:44:51,821 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-10-09 14:44:51,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:51,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:44:51,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:51,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900580384] [2020-10-09 14:44:51,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 14:44:51,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-09 14:44:51,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651751326] [2020-10-09 14:44:51,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 14:44:51,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 14:44:51,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 14:44:51,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-09 14:44:51,926 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 145 [2020-10-09 14:44:51,927 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 148 transitions, 422 flow. Second operand 4 states. [2020-10-09 14:44:51,927 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 14:44:51,927 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 145 [2020-10-09 14:44:51,928 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 14:44:52,051 INFO L129 PetriNetUnfolder]: 24/721 cut-off events. [2020-10-09 14:44:52,051 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-09 14:44:52,055 INFO L80 FinitePrefix]: Finished finitePrefix Result has 957 conditions, 721 events. 24/721 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2910 event pairs, 0 based on Foata normal form. 20/705 useless extension candidates. Maximal degree in co-relation 868. Up to 26 conditions per place. [2020-10-09 14:44:52,057 INFO L132 encePairwiseOnDemand]: 141/145 looper letters, 2 selfloop transitions, 4 changer transitions 0/143 dead transitions. [2020-10-09 14:44:52,058 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 143 transitions, 406 flow [2020-10-09 14:44:52,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 14:44:52,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-09 14:44:52,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 410 transitions. [2020-10-09 14:44:52,060 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9425287356321839 [2020-10-09 14:44:52,060 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 410 transitions. [2020-10-09 14:44:52,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 410 transitions. [2020-10-09 14:44:52,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 14:44:52,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 410 transitions. [2020-10-09 14:44:52,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-09 14:44:52,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-09 14:44:52,063 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-09 14:44:52,063 INFO L185 Difference]: Start difference. First operand has 149 places, 148 transitions, 422 flow. Second operand 3 states and 410 transitions. [2020-10-09 14:44:52,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 143 transitions, 406 flow [2020-10-09 14:44:52,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 143 transitions, 394 flow, removed 5 selfloop flow, removed 1 redundant places. [2020-10-09 14:44:52,069 INFO L241 Difference]: Finished difference. Result has 149 places, 143 transitions, 390 flow [2020-10-09 14:44:52,070 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=390, PETRI_PLACES=149, PETRI_TRANSITIONS=143} [2020-10-09 14:44:52,070 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, 20 predicate places. [2020-10-09 14:44:52,070 INFO L481 AbstractCegarLoop]: Abstraction has has 149 places, 143 transitions, 390 flow [2020-10-09 14:44:52,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 14:44:52,070 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 14:44:52,070 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 14:44:52,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-09 14:44:52,284 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 14:44:52,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 14:44:52,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1549356585, now seen corresponding path program 1 times [2020-10-09 14:44:52,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 14:44:52,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836440993] [2020-10-09 14:44:52,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-10-09 14:44:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 14:44:52,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-09 14:44:52,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:44:52,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:52,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:44:52,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:52,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1836440993] [2020-10-09 14:44:52,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 14:44:52,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2020-10-09 14:44:52,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346276292] [2020-10-09 14:44:52,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-09 14:44:52,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 14:44:52,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-09 14:44:52,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-09 14:44:52,862 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 145 [2020-10-09 14:44:52,863 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 143 transitions, 390 flow. Second operand 7 states. [2020-10-09 14:44:52,863 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 14:44:52,864 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 145 [2020-10-09 14:44:52,864 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 14:44:53,094 INFO L129 PetriNetUnfolder]: 46/1046 cut-off events. [2020-10-09 14:44:53,094 INFO L130 PetriNetUnfolder]: For 98/98 co-relation queries the response was YES. [2020-10-09 14:44:53,099 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1528 conditions, 1046 events. 46/1046 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 5055 event pairs, 1 based on Foata normal form. 4/1002 useless extension candidates. Maximal degree in co-relation 920. Up to 44 conditions per place. [2020-10-09 14:44:53,102 INFO L132 encePairwiseOnDemand]: 134/145 looper letters, 27 selfloop transitions, 16 changer transitions 0/159 dead transitions. [2020-10-09 14:44:53,103 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 159 transitions, 529 flow [2020-10-09 14:44:53,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-09 14:44:53,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-09 14:44:53,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1135 transitions. [2020-10-09 14:44:53,107 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8697318007662835 [2020-10-09 14:44:53,107 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1135 transitions. [2020-10-09 14:44:53,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1135 transitions. [2020-10-09 14:44:53,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 14:44:53,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1135 transitions. [2020-10-09 14:44:53,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-09 14:44:53,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-09 14:44:53,113 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-09 14:44:53,114 INFO L185 Difference]: Start difference. First operand has 149 places, 143 transitions, 390 flow. Second operand 9 states and 1135 transitions. [2020-10-09 14:44:53,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 159 transitions, 529 flow [2020-10-09 14:44:53,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 159 transitions, 525 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-09 14:44:53,120 INFO L241 Difference]: Finished difference. Result has 162 places, 151 transitions, 494 flow [2020-10-09 14:44:53,120 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=494, PETRI_PLACES=162, PETRI_TRANSITIONS=151} [2020-10-09 14:44:53,120 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, 33 predicate places. [2020-10-09 14:44:53,120 INFO L481 AbstractCegarLoop]: Abstraction has has 162 places, 151 transitions, 494 flow [2020-10-09 14:44:53,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-09 14:44:53,121 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 14:44:53,121 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2020-10-09 14:44:53,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-09 14:44:53,341 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 14:44:53,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 14:44:53,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1182131643, now seen corresponding path program 1 times [2020-10-09 14:44:53,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 14:44:53,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1200979169] [2020-10-09 14:44:53,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-10-09 14:44:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 14:44:53,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 59 conjunts are in the unsatisfiable core [2020-10-09 14:44:53,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:44:53,545 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-10-09 14:44:53,545 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:53,569 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-09 14:44:53,957 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2020-10-09 14:44:53,957 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 14:44:54,005 INFO L625 ElimStorePlain]: treesize reduction 13, result has 82.2 percent of original size [2020-10-09 14:44:54,009 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 14:44:54,009 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:77, output treesize:59 [2020-10-09 14:44:54,083 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-09 14:44:54,097 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 14:44:54,098 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 56 [2020-10-09 14:44:54,133 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-09 14:44:54,180 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-09 14:44:54,195 INFO L545 ElimStorePlain]: Start of recursive call 2: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-10-09 14:44:54,261 INFO L625 ElimStorePlain]: treesize reduction 29, result has 70.1 percent of original size [2020-10-09 14:44:54,266 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:54,277 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:54,280 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:54,290 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-09 14:44:54,291 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:67, output treesize:68 [2020-10-09 14:44:54,297 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:54,304 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:54,307 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:54,383 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:54,388 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:54,390 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:54,514 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:54,520 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:54,522 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:44:55,137 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 14:44:55,137 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 32 [2020-10-09 14:44:55,138 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 14:44:55,152 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 14:44:55,153 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 14:44:55,153 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:18 [2020-10-09 14:44:55,223 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-09 14:44:56,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:56,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:44:58,608 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~#id2~0.base| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base| (store (select |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base|) |c_ULTIMATE.start_main_~#id2~0.offset| 1)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))) 4294967296)))) is different from false [2020-10-09 14:44:58,625 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 152 [2020-10-09 14:44:58,628 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-10-09 14:44:58,679 INFO L625 ElimStorePlain]: treesize reduction 105, result has 23.9 percent of original size [2020-10-09 14:44:58,680 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2020-10-09 14:44:58,681 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:46, output treesize:21 [2020-10-09 14:44:59,452 INFO L721 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-09 14:44:59,510 INFO L721 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-09 14:44:59,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:44:59,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1200979169] [2020-10-09 14:44:59,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 14:44:59,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26, 23] imperfect sequences [] total 47 [2020-10-09 14:44:59,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698239792] [2020-10-09 14:44:59,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 47 states [2020-10-09 14:44:59,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 14:44:59,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2020-10-09 14:44:59,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1920, Unknown=1, NotChecked=88, Total=2162 [2020-10-09 14:45:01,521 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 145 [2020-10-09 14:45:01,524 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 151 transitions, 494 flow. Second operand 47 states. [2020-10-09 14:45:01,524 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 14:45:01,524 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 145 [2020-10-09 14:45:01,524 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 14:45:03,446 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-10-09 14:45:03,818 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2020-10-09 14:45:04,257 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2020-10-09 14:45:04,718 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2020-10-09 14:45:06,698 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse5 (mod c_t1Thread1of1ForFork0_~tmp~0 4294967296)) (.cse0 (select |c_#memory_int| |c_~#arr~0.base|)) (.cse1 (* c_~top~0 4))) (let ((.cse2 (select .cse0 (+ |c_~#arr~0.offset| .cse1))) (.cse3 (<= 800 .cse5)) (.cse4 (< .cse5 800))) (and (= c_~top~0 |c_t1Thread1of1ForFork0_push_#t~ret35|) (= |c_~#arr~0.offset| c_t1Thread1of1ForFork0_push_~stack.offset) (= |c_ULTIMATE.start_main_~#id2~0.offset| 0) (= c_t1Thread1of1ForFork0_push_~stack.base |c_~#arr~0.base|) (not (= 4294967294 (mod (select .cse0 (+ |c_~#arr~0.offset| .cse1 (- 4))) 4294967296))) (< .cse2 4294967296) (<= (div .cse2 (- 4294967296)) (div (+ (* .cse2 (- 1)) 799) 4294967296)) (forall ((|ULTIMATE.start_main_~#id2~0.base| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base| (store (select |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base|) |c_ULTIMATE.start_main_~#id2~0.offset| 1)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))) 4294967296)))) (= |c_t1Thread1of1ForFork0_push_#in~stack.base| |c_~#arr~0.base|) (< |c_t1Thread1of1ForFork0_push_#in~x| 4294967296) (or (and (= |c_t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| 0) .cse3) (and (= |c_t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| 1) .cse4)) (<= (div c_t1Thread1of1ForFork0_push_~x (- 4294967296)) (div (+ (* c_t1Thread1of1ForFork0_push_~x (- 1)) 799) 4294967296)) (<= (div |c_t1Thread1of1ForFork0_push_#in~x| (- 4294967296)) (div (+ (* |c_t1Thread1of1ForFork0_push_#in~x| (- 1)) 799) 4294967296)) (<= 0 c_t1Thread1of1ForFork0_push_~x) (< c_t1Thread1of1ForFork0_push_~x 4294967296) (= c_~top~0 |c_t1Thread1of1ForFork0_get_top_#res|) (<= 0 .cse2) (= |c_~#arr~0.offset| 0) (or (and .cse3 (= c_t1Thread1of1ForFork0_assume_abort_if_not_~cond 0)) (and (= c_t1Thread1of1ForFork0_assume_abort_if_not_~cond 1) .cse4)) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_#in~stack.offset|) (= c_~top~0 0) (<= 0 |c_t1Thread1of1ForFork0_push_#in~x|) .cse4))) is different from false [2020-10-09 14:45:08,113 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_int| |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))))) (and (= |c_ULTIMATE.start_main_~#id2~0.offset| 0) (< .cse0 4294967296) (<= (div .cse0 (- 4294967296)) (div (+ (* .cse0 (- 1)) 799) 4294967296)) (forall ((|ULTIMATE.start_main_~#id2~0.base| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base| (store (select |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base|) |c_ULTIMATE.start_main_~#id2~0.offset| 1)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))) 4294967296)))) (<= 0 .cse0) (= |c_~#arr~0.offset| 0) (= c_~top~0 0))) is different from false [2020-10-09 14:45:15,450 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_~#arr~0.offset| (* 4 c_~top~0)))) (and (= .cse0 (+ c_t1Thread1of1ForFork0_push_~stack.offset (* 4 |c_t1Thread1of1ForFork0_push_#t~ret35|))) (= |c_~#arr~0.offset| c_t1Thread1of1ForFork0_push_~stack.offset) (= .cse0 (+ (* 4 |c_t1Thread1of1ForFork0_get_top_#res|) c_t1Thread1of1ForFork0_push_~stack.offset)) (= c_t1Thread1of1ForFork0_push_~stack.base |c_~#arr~0.base|) (not (= 4294967294 (mod |c_t1Thread1of1ForFork0_push_#in~x| 4294967296))) (not (= (mod c_t1Thread1of1ForFork0_push_~x 4294967296) 4294967294)) (forall ((|ULTIMATE.start_main_~#id2~0.base| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base| (store (select |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base|) |c_ULTIMATE.start_main_~#id2~0.offset| 1)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))) 4294967296)))) (not (= (mod (+ (* (mod c_t1Thread1of1ForFork0_~tmp~0 4294967296) 4294967295) 4294967294) (- 4294967296)) 0)) (= |c_t1Thread1of1ForFork0_push_#in~stack.base| |c_~#arr~0.base|) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_#in~stack.offset|) (not (= 4294967294 (mod (select (select |c_#memory_int| |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))) 4294967296))))) is different from false [2020-10-09 14:45:18,023 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int| |c_~#arr~0.base|))) (let ((.cse1 (+ |c_~#arr~0.offset| (* 4 c_~top~0))) (.cse0 (select .cse2 |c_~#arr~0.offset|))) (and (= |c_~#arr~0.offset| c_t1Thread1of1ForFork0_push_~stack.offset) (= c_t1Thread1of1ForFork0_push_~stack.base |c_~#arr~0.base|) (<= (div .cse0 (- 4294967296)) (div (+ (* .cse0 (- 1)) 799) 4294967296)) (= c_~top~0 1) (not (= 4294967294 (mod |c_t1Thread1of1ForFork0_push_#in~x| 4294967296))) (forall ((|ULTIMATE.start_main_~#id2~0.base| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base| (store (select |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base|) |c_ULTIMATE.start_main_~#id2~0.offset| 1)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))) 4294967296)))) (exists ((|ULTIMATE.start_main_~#id2~0.base| Int)) (= (select (select |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base|) 0) 1)) (= |c_t1Thread1of1ForFork0_push_#in~stack.base| |c_~#arr~0.base|) (= .cse1 (+ c_t1Thread1of1ForFork0_push_~stack.offset (* 4 |c_t1Thread1of1ForFork0_push_#t~ret35|))) (= .cse1 (+ (* 4 |c_t1Thread1of1ForFork0_get_top_#res|) c_t1Thread1of1ForFork0_push_~stack.offset)) (< .cse0 4294967296) (<= 0 .cse0) (not (= (mod c_t1Thread1of1ForFork0_push_~x 4294967296) 4294967294)) (= |c_~#arr~0.offset| 0) (not (= (mod (+ (* (mod c_t1Thread1of1ForFork0_~tmp~0 4294967296) 4294967295) 4294967294) (- 4294967296)) 0)) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_#in~stack.offset|) (not (= 4294967294 (mod (select .cse2 (+ |c_~#arr~0.offset| (* c_~top~0 4))) 4294967296)))))) is different from false [2020-10-09 14:45:20,211 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_~#arr~0.offset| (* 4 c_~top~0))) (.cse1 (select |c_#memory_int| |c_~#arr~0.base|)) (.cse2 (* c_~top~0 4))) (and (= .cse0 (+ c_t1Thread1of1ForFork0_push_~stack.offset (* 4 |c_t1Thread1of1ForFork0_push_#t~ret35|))) (= |c_~#arr~0.offset| c_t1Thread1of1ForFork0_push_~stack.offset) (= .cse0 (+ (* 4 |c_t1Thread1of1ForFork0_get_top_#res|) c_t1Thread1of1ForFork0_push_~stack.offset)) (= c_t1Thread1of1ForFork0_push_~stack.base |c_~#arr~0.base|) (not (= 4294967294 (mod (select .cse1 (+ |c_~#arr~0.offset| .cse2 (- 4))) 4294967296))) (not (= 4294967294 (mod |c_t1Thread1of1ForFork0_push_#in~x| 4294967296))) (not (= (mod c_t1Thread1of1ForFork0_push_~x 4294967296) 4294967294)) (forall ((|ULTIMATE.start_main_~#id2~0.base| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base| (store (select |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base|) |c_ULTIMATE.start_main_~#id2~0.offset| 1)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))) 4294967296)))) (not (= (mod (+ (* (mod c_t1Thread1of1ForFork0_~tmp~0 4294967296) 4294967295) 4294967294) (- 4294967296)) 0)) (= |c_t1Thread1of1ForFork0_push_#in~stack.base| |c_~#arr~0.base|) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_#in~stack.offset|) (not (= 4294967294 (mod (select .cse1 (+ |c_~#arr~0.offset| .cse2)) 4294967296))))) is different from false [2020-10-09 14:45:21,370 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-10-09 14:45:24,717 WARN L193 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 90 DAG size of output: 89 [2020-10-09 14:45:25,180 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2020-10-09 14:45:25,572 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2020-10-09 14:45:27,337 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-09 14:45:28,288 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-09 14:45:29,018 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 94 [2020-10-09 14:45:29,770 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-10-09 14:45:32,512 WARN L193 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2020-10-09 14:45:37,830 WARN L193 SmtUtils]: Spent 4.34 s on a formula simplification. DAG size of input: 101 DAG size of output: 100 [2020-10-09 14:45:42,628 WARN L193 SmtUtils]: Spent 4.28 s on a formula simplification. DAG size of input: 105 DAG size of output: 104 [2020-10-09 14:45:44,273 WARN L193 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 110 [2020-10-09 14:45:45,616 WARN L193 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 114 [2020-10-09 14:45:48,014 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_~#arr~0.offset| (* 4 c_~top~0))) (.cse0 (select |c_#memory_int| c_t2Thread1of1ForFork1_pop_~stack.base)) (.cse2 (* c_~top~0 4))) (and (= |c_~#arr~0.offset| c_t1Thread1of1ForFork0_push_~stack.offset) (= c_t1Thread1of1ForFork0_push_~stack.base |c_~#arr~0.base|) (not (= 4294967294 (mod |c_t1Thread1of1ForFork0_push_#in~x| 4294967296))) (not (= 0 (+ |c_t2Thread1of1ForFork1_pop_#res| 2))) (forall ((|ULTIMATE.start_main_~#id2~0.base| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base| (store (select |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base|) |c_ULTIMATE.start_main_~#id2~0.offset| 1)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))) 4294967296)))) (= |c_t1Thread1of1ForFork0_push_#in~stack.base| |c_~#arr~0.base|) (not (= (mod (select .cse0 (+ c_t2Thread1of1ForFork1_pop_~stack.offset (* |c_t2Thread1of1ForFork1_get_top_#res| 4))) 4294967296) 4294967294)) (= .cse1 (+ c_t1Thread1of1ForFork0_push_~stack.offset (* 4 |c_t1Thread1of1ForFork0_push_#t~ret35|))) (= .cse1 (+ (* 4 |c_t1Thread1of1ForFork0_get_top_#res|) c_t1Thread1of1ForFork0_push_~stack.offset)) (not (= (mod c_t1Thread1of1ForFork0_push_~x 4294967296) 4294967294)) (not (= (mod (+ (* (mod c_t1Thread1of1ForFork0_~tmp~0 4294967296) 4294967295) 4294967294) (- 4294967296)) 0)) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_#in~stack.offset|) (not (= (mod (select .cse0 (+ c_t2Thread1of1ForFork1_pop_~stack.offset .cse2)) 4294967296) 4294967294)) (not (= 4294967294 (mod (select (select |c_#memory_int| |c_~#arr~0.base|) (+ |c_~#arr~0.offset| .cse2)) 4294967296))))) is different from false [2020-10-09 14:45:50,118 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse5 (+ |c_~#arr~0.offset| (* 4 c_~top~0))) (.cse4 (select |c_#memory_int| c_t2Thread1of1ForFork1_pop_~stack.base)) (.cse6 (* c_~top~0 4))) (and (= |c_~#arr~0.offset| c_t1Thread1of1ForFork0_push_~stack.offset) (= c_t1Thread1of1ForFork0_push_~stack.base |c_~#arr~0.base|) (not (= 4294967294 (mod |c_t1Thread1of1ForFork0_push_#in~x| 4294967296))) (forall ((|ULTIMATE.start_main_~#id2~0.base| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base| (store (select |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base|) |c_ULTIMATE.start_main_~#id2~0.offset| 1)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))) 4294967296)))) (<= 0 |c_t2Thread1of1ForFork1_pop_#res|) (exists ((|aux_div_t2Thread1of1ForFork1_pop_#t~mem40_70| Int) (|aux_div_aux_mod_t2Thread1of1ForFork1_pop_#t~mem40_70_151| Int) (|aux_div_aux_mod_aux_mod_t2Thread1of1ForFork1_pop_#t~mem40_70_151_75| Int)) (let ((.cse3 (* 4294967296 |aux_div_aux_mod_aux_mod_t2Thread1of1ForFork1_pop_#t~mem40_70_151_75|))) (let ((.cse1 (+ |c_t2Thread1of1ForFork1_pop_#res| .cse3)) (.cse2 (* 4294967296 |aux_div_t2Thread1of1ForFork1_pop_#t~mem40_70|)) (.cse0 (* 4294967296 |aux_div_aux_mod_t2Thread1of1ForFork1_pop_#t~mem40_70_151|))) (and (<= .cse0 .cse1) (< .cse1 (+ .cse0 4294967296)) (<= |aux_div_aux_mod_t2Thread1of1ForFork1_pop_#t~mem40_70_151| |aux_div_t2Thread1of1ForFork1_pop_#t~mem40_70|) (< .cse1 4294967296) (<= 0 .cse1) (< .cse0 (+ |c_t2Thread1of1ForFork1_pop_#res| .cse2 .cse3 4294966497)) (<= (+ |c_t2Thread1of1ForFork1_pop_#res| .cse2 .cse3) (+ .cse0 799)))))) (= |c_t1Thread1of1ForFork0_push_#in~stack.base| |c_~#arr~0.base|) (not (= (mod (select .cse4 (+ c_t2Thread1of1ForFork1_pop_~stack.offset (* |c_t2Thread1of1ForFork1_get_top_#res| 4))) 4294967296) 4294967294)) (= .cse5 (+ c_t1Thread1of1ForFork0_push_~stack.offset (* 4 |c_t1Thread1of1ForFork0_push_#t~ret35|))) (= .cse5 (+ (* 4 |c_t1Thread1of1ForFork0_get_top_#res|) c_t1Thread1of1ForFork0_push_~stack.offset)) (< |c_t2Thread1of1ForFork1_pop_#res| 4294967296) (not (= (mod c_t1Thread1of1ForFork0_push_~x 4294967296) 4294967294)) (= |c_~#arr~0.offset| 0) (not (= (mod (+ (* (mod c_t1Thread1of1ForFork0_~tmp~0 4294967296) 4294967295) 4294967294) (- 4294967296)) 0)) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_#in~stack.offset|) (= c_~top~0 0) (not (= (mod (select .cse4 (+ c_t2Thread1of1ForFork1_pop_~stack.offset .cse6)) 4294967296) 4294967294)) (not (= 4294967294 (mod (select (select |c_#memory_int| |c_~#arr~0.base|) (+ |c_~#arr~0.offset| .cse6)) 4294967296))))) is different from false [2020-10-09 14:45:52,549 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-09 14:45:56,344 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_~#arr~0.offset| (* 4 c_~top~0)))) (and (= |c_~#arr~0.offset| c_t1Thread1of1ForFork0_push_~stack.offset) (= c_t1Thread1of1ForFork0_push_~stack.base |c_~#arr~0.base|) (not (= 4294967294 (mod |c_t1Thread1of1ForFork0_push_#in~x| 4294967296))) (forall ((|ULTIMATE.start_main_~#id2~0.base| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base| (store (select |c_#memory_int| |ULTIMATE.start_main_~#id2~0.base|) |c_ULTIMATE.start_main_~#id2~0.offset| 1)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))) 4294967296)))) (= |c_t1Thread1of1ForFork0_push_#in~stack.base| |c_~#arr~0.base|) (= .cse0 (+ c_t1Thread1of1ForFork0_push_~stack.offset (* 4 |c_t1Thread1of1ForFork0_push_#t~ret35|))) (= .cse0 (+ (* 4 |c_t1Thread1of1ForFork0_get_top_#res|) c_t1Thread1of1ForFork0_push_~stack.offset)) (not (= (mod c_t1Thread1of1ForFork0_push_~x 4294967296) 4294967294)) (= |c_~#arr~0.offset| 0) (not (= (mod (+ (* (mod c_t1Thread1of1ForFork0_~tmp~0 4294967296) 4294967295) 4294967294) (- 4294967296)) 0)) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork0_push_#in~stack.offset|) (= c_~top~0 0) (not (= 4294967294 (mod (select (select |c_#memory_int| |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))) 4294967296))))) is different from false [2020-10-09 14:46:01,903 INFO L129 PetriNetUnfolder]: 2099/7345 cut-off events. [2020-10-09 14:46:01,903 INFO L130 PetriNetUnfolder]: For 1171/1171 co-relation queries the response was YES. [2020-10-09 14:46:01,935 INFO L80 FinitePrefix]: Finished finitePrefix Result has 14318 conditions, 7345 events. 2099/7345 cut-off events. For 1171/1171 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 66983 event pairs, 180 based on Foata normal form. 12/7052 useless extension candidates. Maximal degree in co-relation 8644. Up to 849 conditions per place. [2020-10-09 14:46:01,970 INFO L132 encePairwiseOnDemand]: 103/145 looper letters, 483 selfloop transitions, 189 changer transitions 8/750 dead transitions. [2020-10-09 14:46:01,970 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 750 transitions, 3335 flow [2020-10-09 14:46:01,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2020-10-09 14:46:01,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-09 14:46:01,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 10051 transitions. [2020-10-09 14:46:02,001 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.5458050502307901 [2020-10-09 14:46:02,001 INFO L72 ComplementDD]: Start complementDD. Operand 127 states and 10051 transitions. [2020-10-09 14:46:02,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 127 states and 10051 transitions. [2020-10-09 14:46:02,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 14:46:02,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 127 states and 10051 transitions. [2020-10-09 14:46:02,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 128 states. [2020-10-09 14:46:02,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 128 states. [2020-10-09 14:46:02,059 INFO L81 ComplementDD]: Finished complementDD. Result 128 states. [2020-10-09 14:46:02,059 INFO L185 Difference]: Start difference. First operand has 162 places, 151 transitions, 494 flow. Second operand 127 states and 10051 transitions. [2020-10-09 14:46:02,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 750 transitions, 3335 flow [2020-10-09 14:46:02,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 750 transitions, 3313 flow, removed 5 selfloop flow, removed 2 redundant places. [2020-10-09 14:46:02,088 INFO L241 Difference]: Finished difference. Result has 322 places, 337 transitions, 1744 flow [2020-10-09 14:46:02,089 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=127, PETRI_FLOW=1744, PETRI_PLACES=322, PETRI_TRANSITIONS=337} [2020-10-09 14:46:02,089 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, 193 predicate places. [2020-10-09 14:46:02,089 INFO L481 AbstractCegarLoop]: Abstraction has has 322 places, 337 transitions, 1744 flow [2020-10-09 14:46:02,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 47 states. [2020-10-09 14:46:02,089 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 14:46:02,090 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2020-10-09 14:46:02,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-10-09 14:46:02,291 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 14:46:02,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 14:46:02,291 INFO L82 PathProgramCache]: Analyzing trace with hash 972368263, now seen corresponding path program 2 times [2020-10-09 14:46:02,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 14:46:02,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967659791] [2020-10-09 14:46:02,292 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-10-09 14:46:02,374 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-09 14:46:02,374 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-09 14:46:02,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 58 conjunts are in the unsatisfiable core [2020-10-09 14:46:02,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:46:02,492 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-10-09 14:46:02,492 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 14:46:02,525 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-09 14:46:02,733 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-10-09 14:46:03,067 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2020-10-09 14:46:03,067 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 14:46:03,146 INFO L625 ElimStorePlain]: treesize reduction 13, result has 81.4 percent of original size [2020-10-09 14:46:03,148 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 14:46:03,149 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:74, output treesize:56 [2020-10-09 14:46:03,983 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21 [2020-10-09 14:46:03,984 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-09 14:46:04,004 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-09 14:46:04,005 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-09 14:46:04,005 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:18 [2020-10-09 14:46:04,128 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-09 14:46:08,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:46:08,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:46:10,240 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 46 [2020-10-09 14:46:10,243 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2020-10-09 14:46:10,286 INFO L625 ElimStorePlain]: treesize reduction 17, result has 55.3 percent of original size [2020-10-09 14:46:10,287 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2020-10-09 14:46:10,287 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:21 [2020-10-09 14:46:11,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:46:11,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967659791] [2020-10-09 14:46:11,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 14:46:11,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24, 22] imperfect sequences [] total 44 [2020-10-09 14:46:11,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281887324] [2020-10-09 14:46:11,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-10-09 14:46:11,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 14:46:11,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-10-09 14:46:11,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1757, Unknown=2, NotChecked=0, Total=1892 [2020-10-09 14:50:35,642 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 145 [2020-10-09 14:50:35,645 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 337 transitions, 1744 flow. Second operand 44 states. [2020-10-09 14:50:35,645 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 14:50:35,645 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 145 [2020-10-09 14:50:35,645 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 14:50:36,303 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-10-09 14:50:36,786 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-10-09 14:50:37,465 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-10-09 14:50:38,389 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-10-09 14:50:39,206 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2020-10-09 14:50:40,630 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2020-10-09 14:50:41,940 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2020-10-09 14:50:43,577 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2020-10-09 14:50:45,409 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2020-10-09 14:50:46,929 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-10-09 14:50:49,450 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2020-10-09 14:50:50,503 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2020-10-09 14:50:51,018 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-10-09 14:50:51,672 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-10-09 14:50:52,260 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-10-09 14:50:53,018 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-09 14:50:53,792 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-10-09 14:50:55,158 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-09 14:50:55,696 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-10-09 14:50:56,396 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-10-09 14:50:57,141 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-10-09 14:50:57,743 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-10-09 14:50:58,724 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-09 14:50:59,879 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-09 14:51:00,584 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-09 14:51:01,419 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-09 14:51:01,911 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-10-09 14:51:02,772 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-09 14:51:03,469 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-09 14:51:04,320 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-09 14:51:04,787 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-10-09 14:51:05,184 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-10-09 14:51:06,183 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-09 14:51:07,922 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 96 [2020-10-09 14:51:08,907 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-09 14:51:09,922 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-09 14:51:14,071 WARN L193 SmtUtils]: Spent 3.63 s on a formula simplification that was a NOOP. DAG size: 100 [2020-10-09 14:51:15,548 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-09 14:51:15,999 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-10-09 14:51:19,179 WARN L193 SmtUtils]: Spent 2.55 s on a formula simplification that was a NOOP. DAG size: 91 [2020-10-09 14:51:19,523 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-10-09 14:51:20,015 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-10-09 14:51:20,695 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-10-09 14:51:24,131 WARN L193 SmtUtils]: Spent 2.82 s on a formula simplification that was a NOOP. DAG size: 97 [2020-10-09 14:51:30,010 WARN L193 SmtUtils]: Spent 5.23 s on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2020-10-09 14:51:30,539 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-10-09 14:51:35,531 WARN L193 SmtUtils]: Spent 3.49 s on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2020-10-09 14:51:36,477 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-10-09 14:51:40,491 WARN L193 SmtUtils]: Spent 3.41 s on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2020-10-09 14:51:44,779 WARN L193 SmtUtils]: Spent 3.71 s on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-09 14:51:49,601 WARN L193 SmtUtils]: Spent 4.11 s on a formula simplification. DAG size of input: 104 DAG size of output: 95 [2020-10-09 14:51:50,309 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-10-09 14:51:54,788 WARN L193 SmtUtils]: Spent 3.87 s on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2020-10-09 14:51:55,111 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-09 14:52:00,579 WARN L193 SmtUtils]: Spent 4.32 s on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2020-10-09 14:52:00,988 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-10-09 14:52:01,444 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-09 14:52:01,817 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-10-09 14:52:02,543 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-10-09 14:52:02,974 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-10-09 14:52:03,763 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-10-09 14:52:04,115 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-09 14:52:04,463 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-09 14:52:11,099 WARN L193 SmtUtils]: Spent 5.90 s on a formula simplification. DAG size of input: 118 DAG size of output: 102 [2020-10-09 14:52:14,899 WARN L193 SmtUtils]: Spent 3.22 s on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2020-10-09 14:52:15,303 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-10-09 14:52:18,208 WARN L193 SmtUtils]: Spent 2.45 s on a formula simplification that was a NOOP. DAG size: 84 [2020-10-09 14:52:18,609 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-09 14:52:18,941 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-10-09 14:52:19,293 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-10-09 14:52:19,804 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-10-09 14:52:20,306 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-10-09 14:52:20,692 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-10-09 14:52:21,458 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-10-09 14:52:22,321 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-10-09 14:52:23,135 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2020-10-09 14:52:24,717 WARN L193 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-10-09 14:52:25,683 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2020-10-09 14:52:27,255 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-10-09 14:52:29,294 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2020-10-09 14:52:29,997 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-10-09 14:52:32,811 WARN L193 SmtUtils]: Spent 2.47 s on a formula simplification that was a NOOP. DAG size: 77 [2020-10-09 14:52:33,370 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-10-09 14:52:36,801 WARN L193 SmtUtils]: Spent 2.73 s on a formula simplification that was a NOOP. DAG size: 96 [2020-10-09 14:52:37,442 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-09 14:52:38,487 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-09 14:52:40,520 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2020-10-09 14:52:41,671 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-09 14:52:43,370 WARN L193 SmtUtils]: Spent 918.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2020-10-09 14:52:43,781 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-10-09 14:52:44,461 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-09 14:52:47,844 WARN L193 SmtUtils]: Spent 2.76 s on a formula simplification that was a NOOP. DAG size: 90 [2020-10-09 14:52:49,485 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-10-09 14:52:52,645 WARN L193 SmtUtils]: Spent 2.63 s on a formula simplification that was a NOOP. DAG size: 76 [2020-10-09 14:52:55,084 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-10-09 14:52:55,817 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-10-09 14:52:58,887 WARN L193 SmtUtils]: Spent 2.48 s on a formula simplification that was a NOOP. DAG size: 80 [2020-10-09 14:52:59,914 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-10-09 14:53:00,543 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-09 14:53:03,663 WARN L193 SmtUtils]: Spent 2.62 s on a formula simplification that was a NOOP. DAG size: 91 [2020-10-09 14:53:04,105 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-10-09 14:53:04,634 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-09 14:53:07,486 WARN L193 SmtUtils]: Spent 2.51 s on a formula simplification that was a NOOP. DAG size: 95 [2020-10-09 14:53:07,901 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-10-09 14:53:08,784 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-09 14:53:09,422 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-09 14:53:11,106 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 101 [2020-10-09 14:53:11,842 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-10-09 14:53:12,513 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-09 14:53:15,575 WARN L193 SmtUtils]: Spent 2.66 s on a formula simplification that was a NOOP. DAG size: 97 [2020-10-09 14:53:16,255 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-10-09 14:53:17,048 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-09 14:53:18,522 WARN L193 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-09 14:53:19,154 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-09 14:53:20,221 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-09 14:53:20,625 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-10-09 14:53:23,266 WARN L193 SmtUtils]: Spent 2.36 s on a formula simplification that was a NOOP. DAG size: 81 [2020-10-09 14:53:24,175 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-09 14:53:25,379 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-09 14:53:26,989 WARN L193 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-09 14:53:28,478 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-09 14:53:29,479 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-09 14:53:30,173 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-10-09 14:53:33,083 WARN L193 SmtUtils]: Spent 2.43 s on a formula simplification that was a NOOP. DAG size: 74 [2020-10-09 14:53:33,557 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-09 14:53:36,237 WARN L193 SmtUtils]: Spent 2.37 s on a formula simplification that was a NOOP. DAG size: 89 [2020-10-09 14:53:36,982 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-10-09 14:53:40,092 WARN L193 SmtUtils]: Spent 2.55 s on a formula simplification that was a NOOP. DAG size: 84 [2020-10-09 14:53:41,489 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-10-09 14:53:41,990 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-09 14:53:42,779 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-09 14:53:43,811 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-09 14:53:44,319 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-09 14:53:47,291 WARN L193 SmtUtils]: Spent 2.45 s on a formula simplification that was a NOOP. DAG size: 87 [2020-10-09 14:53:48,580 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-09 14:53:49,989 WARN L193 SmtUtils]: Spent 887.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-09 14:53:50,524 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-10-09 14:53:53,267 WARN L193 SmtUtils]: Spent 2.28 s on a formula simplification that was a NOOP. DAG size: 73 [2020-10-09 14:53:54,889 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 90 [2020-10-09 14:53:55,483 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-10-09 14:53:58,391 WARN L193 SmtUtils]: Spent 2.36 s on a formula simplification that was a NOOP. DAG size: 77 [2020-10-09 14:53:59,292 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-09 14:54:00,033 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-09 14:54:00,438 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-09 14:54:01,667 WARN L193 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-09 14:54:02,158 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-09 14:54:02,846 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-09 14:54:05,510 WARN L193 SmtUtils]: Spent 2.29 s on a formula simplification that was a NOOP. DAG size: 90 [2020-10-09 14:54:06,076 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-09 14:54:06,786 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-09 14:54:07,433 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-09 14:54:10,152 WARN L193 SmtUtils]: Spent 2.40 s on a formula simplification that was a NOOP. DAG size: 93 [2020-10-09 14:54:14,081 WARN L193 SmtUtils]: Spent 2.25 s on a formula simplification that was a NOOP. DAG size: 82 [2020-10-09 14:54:16,659 WARN L193 SmtUtils]: Spent 2.22 s on a formula simplification that was a NOOP. DAG size: 75 [2020-10-09 14:54:17,051 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-10-09 14:54:17,712 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-10-09 14:54:18,469 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-09 14:54:19,157 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-10-09 14:54:19,676 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-10-09 14:54:22,624 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification that was a NOOP. DAG size: 68 [2020-10-09 14:54:25,336 WARN L193 SmtUtils]: Spent 2.35 s on a formula simplification that was a NOOP. DAG size: 83 [2020-10-09 14:54:25,894 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-09 14:54:28,525 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification that was a NOOP. DAG size: 78 [2020-10-09 14:54:29,072 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-09 14:54:29,952 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-09 14:54:30,388 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-09 14:54:30,866 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-09 14:54:31,341 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-09 14:54:33,867 WARN L193 SmtUtils]: Spent 2.17 s on a formula simplification that was a NOOP. DAG size: 67 [2020-10-09 14:54:34,370 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-09 14:54:34,868 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-09 14:54:37,487 WARN L193 SmtUtils]: Spent 2.33 s on a formula simplification that was a NOOP. DAG size: 85 [2020-10-09 14:54:39,574 INFO L129 PetriNetUnfolder]: 708/5611 cut-off events. [2020-10-09 14:54:39,575 INFO L130 PetriNetUnfolder]: For 16894/17193 co-relation queries the response was YES. [2020-10-09 14:54:39,651 INFO L80 FinitePrefix]: Finished finitePrefix Result has 16792 conditions, 5611 events. 708/5611 cut-off events. For 16894/17193 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 47893 event pairs, 93 based on Foata normal form. 37/5409 useless extension candidates. Maximal degree in co-relation 16550. Up to 639 conditions per place. [2020-10-09 14:54:39,682 INFO L132 encePairwiseOnDemand]: 108/145 looper letters, 207 selfloop transitions, 473 changer transitions 10/799 dead transitions. [2020-10-09 14:54:39,683 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 799 transitions, 6025 flow [2020-10-09 14:54:39,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 183 states. [2020-10-09 14:54:39,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-10-09 14:54:39,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 17055 transitions. [2020-10-09 14:54:39,750 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.642736009044658 [2020-10-09 14:54:39,751 INFO L72 ComplementDD]: Start complementDD. Operand 183 states and 17055 transitions. [2020-10-09 14:54:39,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 183 states and 17055 transitions. [2020-10-09 14:54:39,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 14:54:39,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 183 states and 17055 transitions. [2020-10-09 14:54:39,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 184 states. [2020-10-09 14:54:39,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 184 states. [2020-10-09 14:54:39,976 INFO L81 ComplementDD]: Finished complementDD. Result 184 states. [2020-10-09 14:54:39,977 INFO L185 Difference]: Start difference. First operand has 322 places, 337 transitions, 1744 flow. Second operand 183 states and 17055 transitions. [2020-10-09 14:54:39,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 799 transitions, 6025 flow [2020-10-09 14:54:40,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 799 transitions, 5913 flow, removed 12 selfloop flow, removed 6 redundant places. [2020-10-09 14:54:40,064 INFO L241 Difference]: Finished difference. Result has 530 places, 649 transitions, 4864 flow [2020-10-09 14:54:40,064 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=1704, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=179, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=183, PETRI_FLOW=4864, PETRI_PLACES=530, PETRI_TRANSITIONS=649} [2020-10-09 14:54:40,065 INFO L341 CegarLoopForPetriNet]: 129 programPoint places, 401 predicate places. [2020-10-09 14:54:40,065 INFO L481 AbstractCegarLoop]: Abstraction has has 530 places, 649 transitions, 4864 flow [2020-10-09 14:54:40,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-10-09 14:54:40,065 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 14:54:40,065 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 14:54:40,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-10-09 14:54:40,266 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 14:54:40,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 14:54:40,267 INFO L82 PathProgramCache]: Analyzing trace with hash 907514129, now seen corresponding path program 1 times [2020-10-09 14:54:40,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 14:54:40,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136134743] [2020-10-09 14:54:40,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-10-09 14:54:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 14:54:40,408 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 14:54:40,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 14:54:40,466 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 14:54:40,667 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-10-09 14:54:40,668 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 14:54:40,889 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-10-09 14:54:41,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.10 02:54:41 BasicIcfg [2020-10-09 14:54:41,066 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-09 14:54:41,068 INFO L168 Benchmark]: Toolchain (without parser) took 594841.46 ms. Allocated memory was 251.1 MB in the beginning and 457.2 MB in the end (delta: 206.0 MB). Free memory was 206.9 MB in the beginning and 182.7 MB in the end (delta: 24.2 MB). Peak memory consumption was 230.3 MB. Max. memory is 14.2 GB. [2020-10-09 14:54:41,068 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 251.1 MB. Free memory is still 227.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 14:54:41,069 INFO L168 Benchmark]: CACSL2BoogieTranslator took 864.61 ms. Allocated memory was 251.1 MB in the beginning and 315.1 MB in the end (delta: 64.0 MB). Free memory was 206.9 MB in the beginning and 240.4 MB in the end (delta: -33.5 MB). Peak memory consumption was 40.5 MB. Max. memory is 14.2 GB. [2020-10-09 14:54:41,072 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.58 ms. Allocated memory is still 315.1 MB. Free memory was 240.4 MB in the beginning and 237.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 14:54:41,073 INFO L168 Benchmark]: Boogie Preprocessor took 52.66 ms. Allocated memory is still 315.1 MB. Free memory was 237.9 MB in the beginning and 235.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 14:54:41,073 INFO L168 Benchmark]: RCFGBuilder took 663.14 ms. Allocated memory is still 315.1 MB. Free memory was 235.4 MB in the beginning and 200.9 MB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 14.2 GB. [2020-10-09 14:54:41,073 INFO L168 Benchmark]: TraceAbstraction took 593190.91 ms. Allocated memory was 315.1 MB in the beginning and 457.2 MB in the end (delta: 142.1 MB). Free memory was 200.9 MB in the beginning and 182.7 MB in the end (delta: 18.2 MB). Peak memory consumption was 160.3 MB. Max. memory is 14.2 GB. [2020-10-09 14:54:41,080 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 251.1 MB. Free memory is still 227.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 864.61 ms. Allocated memory was 251.1 MB in the beginning and 315.1 MB in the end (delta: 64.0 MB). Free memory was 206.9 MB in the beginning and 240.4 MB in the end (delta: -33.5 MB). Peak memory consumption was 40.5 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 63.58 ms. Allocated memory is still 315.1 MB. Free memory was 240.4 MB in the beginning and 237.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 52.66 ms. Allocated memory is still 315.1 MB. Free memory was 237.9 MB in the beginning and 235.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 663.14 ms. Allocated memory is still 315.1 MB. Free memory was 235.4 MB in the beginning and 200.9 MB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 593190.91 ms. Allocated memory was 315.1 MB in the beginning and 457.2 MB in the end (delta: 142.1 MB). Free memory was 200.9 MB in the beginning and 182.7 MB in the end (delta: 18.2 MB). Peak memory consumption was 160.3 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 922]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L916] 0 static int top=0; VAL [top=0] [L917] 0 static unsigned int arr[(800)]; VAL [arr={7:0}, top=0] [L918] 0 pthread_mutex_t m; VAL [arr={7:0}, m={4:0}, top=0] [L919] 0 _Bool flag=(0); VAL [arr={7:0}, flag=0, m={4:0}, top=0] [L1001] 0 pthread_t id1, id2; VAL [arr={7:0}, flag=0, m={4:0}, top=0] [L1003] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={7:0}, flag=0, m={4:0}, top=0] [L970] 1 int i; VAL [arr={7:0}, flag=0, m={4:0}, top=0] [L971] 1 unsigned int tmp; VAL [arr={7:0}, flag=0, m={4:0}, top=0] [L972] 1 i=0 VAL [arr={7:0}, flag=0, m={4:0}, top=0] [L972] COND TRUE 1 i<(800) VAL [arr={7:0}, flag=0, m={4:0}, top=0] [L975] 1 tmp = __VERIFIER_nondet_uint() VAL [arr={7:0}, flag=0, m={4:0}, top=0] [L1004] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={7:0}, flag=0, m={4:0}, top=0] [L4] COND FALSE 1 !(!cond) VAL [arr={7:0}, flag=0, m={4:0}, top=0] [L942] COND FALSE 1 !(top==(800)) VAL [arr={7:0}, flag=0, m={4:0}, top=0] [L934] 1 return top; VAL [arr={7:0}, flag=0, m={4:0}, top=0] [L949] 1 stack[get_top()] = x VAL [arr={7:0}, flag=0, m={4:0}, top=0] [L926] 1 top++ VAL [arr={7:0}, flag=0, m={4:0}, top=1] [L952] 1 return 0; VAL [arr={7:0}, flag=0, m={4:0}, top=1] [L977] COND FALSE 1 !(push(arr,tmp)==(-1)) VAL [arr={7:0}, flag=0, m={4:0}, top=1] [L979] 1 flag=(1) VAL [arr={7:0}, flag=1, m={4:0}, top=1] [L986] 2 int i; VAL [arr={7:0}, flag=1, m={4:0}, top=1] [L987] 2 i=0 VAL [arr={7:0}, flag=1, m={4:0}, top=1] [L987] COND TRUE 2 i<(800) VAL [arr={7:0}, flag=1, m={4:0}, top=1] [L990] COND TRUE 2 \read(flag) VAL [arr={7:0}, flag=1, m={4:0}, top=1] [L934] 2 return top; VAL [arr={7:0}, flag=1, m={4:0}, top=1] [L956] COND FALSE 2 !(get_top()==0) VAL [arr={7:0}, flag=1, m={4:0}, top=1] [L930] 2 top-- VAL [arr={7:0}, flag=1, m={4:0}, top=0] [L934] 2 return top; VAL [arr={7:0}, flag=1, m={4:0}, top=0] [L964] EXPR 2 stack[get_top()] VAL [arr={7:0}, flag=1, m={4:0}, top=0] [L964] 2 return stack[get_top()]; VAL [arr={7:0}, flag=1, m={4:0}, top=0] [L992] COND FALSE 2 !(!(pop(arr)!=(-2))) VAL [arr={7:0}, flag=1, m={4:0}, top=0] [L987] 2 i++ VAL [arr={7:0}, flag=1, m={4:0}, top=0] [L987] COND TRUE 2 i<(800) VAL [arr={7:0}, flag=1, m={4:0}, top=0] [L990] COND TRUE 2 \read(flag) VAL [arr={7:0}, flag=1, m={4:0}, top=0] [L934] 2 return top; VAL [arr={7:0}, flag=1, m={4:0}, top=0] [L956] COND TRUE 2 get_top()==0 VAL [arr={7:0}, flag=1, m={4:0}, top=0] [L959] 2 return (-2); VAL [arr={7:0}, flag=1, m={4:0}, top=0] [L992] COND TRUE 2 !(pop(arr)!=(-2)) VAL [arr={7:0}, flag=1, m={4:0}, top=0] [L922] 2 __VERIFIER_error() VAL [arr={7:0}, flag=1, m={4:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 134 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 592.8s, OverallIterations: 9, TraceHistogramMax: 2, AutomataDifference: 572.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 356 SDtfs, 3299 SDslu, 19748 SDs, 0 SdLazy, 17668 SolverSat, 330 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 48.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1843 GetRequests, 1427 SyntacticMatches, 8 SemanticMatches, 408 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 25194 ImplicationChecksByTransitivity, 283.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4864occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 15.9s InterpolantComputationTime, 881 NumberOfCodeBlocks, 881 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1504 ConstructedInterpolants, 51 QuantifiedInterpolants, 925286 SizeOfPredicates, 88 NumberOfNonLiveVariables, 1823 ConjunctsInSsa, 145 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 PerfectInterpolantSequences, 18/108 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...