/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix030_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 10:47:42,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 10:47:42,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 10:47:42,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 10:47:42,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 10:47:42,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 10:47:42,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 10:47:42,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 10:47:42,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 10:47:42,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 10:47:42,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 10:47:42,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 10:47:42,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 10:47:42,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 10:47:42,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 10:47:42,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 10:47:42,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 10:47:42,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 10:47:42,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 10:47:42,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 10:47:42,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 10:47:42,105 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 10:47:42,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 10:47:42,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 10:47:42,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-24 10:47:42,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-24 10:47:42,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-24 10:47:42,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-24 10:47:42,111 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-24 10:47:42,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-24 10:47:42,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 10:47:42,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 10:47:42,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 10:47:42,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 10:47:42,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 10:47:42,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 10:47:42,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 10:47:42,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 10:47:42,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 10:47:42,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 10:47:42,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 10:47:42,118 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2021-03-24 10:47:42,136 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 10:47:42,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 10:47:42,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 10:47:42,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 10:47:42,138 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 10:47:42,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 10:47:42,138 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 10:47:42,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 10:47:42,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 10:47:42,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 10:47:42,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 10:47:42,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 10:47:42,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 10:47:42,140 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 10:47:42,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 10:47:42,140 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 10:47:42,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 10:47:42,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 10:47:42,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 10:47:42,141 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 10:47:42,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 10:47:42,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 10:47:42,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 10:47:42,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 10:47:42,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 10:47:42,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 10:47:42,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 10:47:42,142 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-24 10:47:42,142 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 10:47:42,142 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 10:47:42,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 10:47:42,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 10:47:42,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 10:47:42,452 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 10:47:42,453 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 10:47:42,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix030_pso.opt.i [2021-03-24 10:47:42,511 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26394fb80/d44f4b92bcbb4c8eb0326bec2ed82a9e/FLAG76cf6c0f3 [2021-03-24 10:47:43,003 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 10:47:43,003 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix030_pso.opt.i [2021-03-24 10:47:43,013 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26394fb80/d44f4b92bcbb4c8eb0326bec2ed82a9e/FLAG76cf6c0f3 [2021-03-24 10:47:43,482 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26394fb80/d44f4b92bcbb4c8eb0326bec2ed82a9e [2021-03-24 10:47:43,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 10:47:43,485 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 10:47:43,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 10:47:43,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 10:47:43,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 10:47:43,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 10:47:43" (1/1) ... [2021-03-24 10:47:43,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2010cd6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:47:43, skipping insertion in model container [2021-03-24 10:47:43,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 10:47:43" (1/1) ... [2021-03-24 10:47:43,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 10:47:43,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 10:47:43,680 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix030_pso.opt.i[948,961] [2021-03-24 10:47:43,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 10:47:43,905 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 10:47:43,914 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix030_pso.opt.i[948,961] [2021-03-24 10:47:43,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 10:47:44,022 INFO L208 MainTranslator]: Completed translation [2021-03-24 10:47:44,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:47:44 WrapperNode [2021-03-24 10:47:44,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 10:47:44,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 10:47:44,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 10:47:44,026 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 10:47:44,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:47:44" (1/1) ... [2021-03-24 10:47:44,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:47:44" (1/1) ... [2021-03-24 10:47:44,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 10:47:44,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 10:47:44,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 10:47:44,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 10:47:44,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:47:44" (1/1) ... [2021-03-24 10:47:44,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:47:44" (1/1) ... [2021-03-24 10:47:44,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:47:44" (1/1) ... [2021-03-24 10:47:44,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:47:44" (1/1) ... [2021-03-24 10:47:44,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:47:44" (1/1) ... [2021-03-24 10:47:44,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:47:44" (1/1) ... [2021-03-24 10:47:44,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:47:44" (1/1) ... [2021-03-24 10:47:44,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 10:47:44,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 10:47:44,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 10:47:44,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 10:47:44,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:47:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 10:47:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 10:47:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 10:47:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 10:47:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 10:47:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-24 10:47:44,206 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-24 10:47:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-24 10:47:44,207 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-24 10:47:44,207 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-24 10:47:44,207 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-24 10:47:44,207 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-24 10:47:44,207 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-24 10:47:44,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 10:47:44,207 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 10:47:44,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 10:47:44,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 10:47:44,209 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 10:47:46,042 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 10:47:46,043 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-24 10:47:46,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 10:47:46 BoogieIcfgContainer [2021-03-24 10:47:46,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 10:47:46,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 10:47:46,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 10:47:46,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 10:47:46,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 10:47:43" (1/3) ... [2021-03-24 10:47:46,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad69077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 10:47:46, skipping insertion in model container [2021-03-24 10:47:46,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:47:44" (2/3) ... [2021-03-24 10:47:46,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad69077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 10:47:46, skipping insertion in model container [2021-03-24 10:47:46,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 10:47:46" (3/3) ... [2021-03-24 10:47:46,051 INFO L111 eAbstractionObserver]: Analyzing ICFG mix030_pso.opt.i [2021-03-24 10:47:46,057 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 10:47:46,061 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-24 10:47:46,061 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 10:47:46,101 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,101 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,101 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,101 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,101 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,101 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,101 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,102 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,104 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,104 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,104 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,104 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,107 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,107 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,107 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,108 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,108 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,108 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,109 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,109 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,110 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,110 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,110 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,110 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,110 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,110 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,110 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,110 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,111 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,111 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,111 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,111 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,111 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,111 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,112 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,112 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,112 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,114 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,114 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,114 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,114 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,114 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,115 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,115 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,115 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,115 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,115 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,116 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,116 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,116 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,117 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,117 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,117 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,117 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,117 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,117 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,118 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,118 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,118 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,118 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,118 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,119 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,119 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,119 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,119 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,119 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,119 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,119 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,120 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,120 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,121 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,121 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,125 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,125 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,126 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,126 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,130 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,131 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,131 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,131 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,131 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,132 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,132 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,132 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,134 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,134 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,134 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,134 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,134 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,134 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,134 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,135 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,135 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,135 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,136 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,136 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,137 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,137 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,138 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,138 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,138 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,138 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,139 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,139 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,139 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,139 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,139 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,139 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:47:46,140 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-24 10:47:46,156 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-24 10:47:46,182 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 10:47:46,182 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 10:47:46,182 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 10:47:46,182 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 10:47:46,182 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 10:47:46,183 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 10:47:46,183 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 10:47:46,183 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 10:47:46,199 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 115 transitions, 250 flow [2021-03-24 10:47:46,251 INFO L129 PetriNetUnfolder]: 2/111 cut-off events. [2021-03-24 10:47:46,251 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 10:47:46,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 111 events. 2/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-03-24 10:47:46,259 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 115 transitions, 250 flow [2021-03-24 10:47:46,265 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 111 transitions, 234 flow [2021-03-24 10:47:46,267 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-24 10:47:46,274 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 111 transitions, 234 flow [2021-03-24 10:47:46,276 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 111 transitions, 234 flow [2021-03-24 10:47:46,280 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 122 places, 111 transitions, 234 flow [2021-03-24 10:47:46,317 INFO L129 PetriNetUnfolder]: 2/111 cut-off events. [2021-03-24 10:47:46,317 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 10:47:46,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 111 events. 2/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-03-24 10:47:46,323 INFO L142 LiptonReduction]: Number of co-enabled transitions 2630 [2021-03-24 10:47:47,828 WARN L205 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-03-24 10:47:48,128 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-03-24 10:47:49,529 WARN L205 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-03-24 10:47:50,074 WARN L205 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-24 10:47:50,348 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-24 10:47:50,698 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 84 [2021-03-24 10:47:50,826 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-24 10:47:51,958 WARN L205 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2021-03-24 10:47:52,235 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-24 10:47:53,415 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 269 DAG size of output: 268 [2021-03-24 10:47:54,015 WARN L205 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-03-24 10:47:54,673 INFO L154 LiptonReduction]: Checked pairs total: 5123 [2021-03-24 10:47:54,673 INFO L156 LiptonReduction]: Total number of compositions: 75 [2021-03-24 10:47:54,675 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8409 [2021-03-24 10:47:54,682 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-24 10:47:54,682 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 10:47:54,682 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:47:54,683 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:47:54,683 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:47:54,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:47:54,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1005604732, now seen corresponding path program 1 times [2021-03-24 10:47:54,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:47:54,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867955737] [2021-03-24 10:47:54,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:47:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:47:54,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:54,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 10:47:54,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:54,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:47:54,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:47:54,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867955737] [2021-03-24 10:47:54,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:47:54,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 10:47:54,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247435831] [2021-03-24 10:47:54,900 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 10:47:54,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:47:54,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 10:47:54,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 10:47:54,917 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 190 [2021-03-24 10:47:54,922 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:54,922 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:47:54,922 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 190 [2021-03-24 10:47:54,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:47:55,054 INFO L129 PetriNetUnfolder]: 69/214 cut-off events. [2021-03-24 10:47:55,054 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 10:47:55,056 INFO L84 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 214 events. 69/214 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1046 event pairs, 39 based on Foata normal form. 10/202 useless extension candidates. Maximal degree in co-relation 327. Up to 89 conditions per place. [2021-03-24 10:47:55,059 INFO L132 encePairwiseOnDemand]: 186/190 looper letters, 9 selfloop transitions, 2 changer transitions 6/46 dead transitions. [2021-03-24 10:47:55,059 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 46 transitions, 130 flow [2021-03-24 10:47:55,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 10:47:55,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 10:47:55,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 517 transitions. [2021-03-24 10:47:55,078 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9070175438596492 [2021-03-24 10:47:55,078 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 517 transitions. [2021-03-24 10:47:55,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 517 transitions. [2021-03-24 10:47:55,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:47:55,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 517 transitions. [2021-03-24 10:47:55,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:55,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:55,097 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:55,098 INFO L185 Difference]: Start difference. First operand has 56 places, 44 transitions, 100 flow. Second operand 3 states and 517 transitions. [2021-03-24 10:47:55,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 46 transitions, 130 flow [2021-03-24 10:47:55,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 46 transitions, 126 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-24 10:47:55,102 INFO L241 Difference]: Finished difference. Result has 52 places, 36 transitions, 84 flow [2021-03-24 10:47:55,103 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=52, PETRI_TRANSITIONS=36} [2021-03-24 10:47:55,104 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, -4 predicate places. [2021-03-24 10:47:55,104 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 36 transitions, 84 flow [2021-03-24 10:47:55,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:55,105 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:47:55,105 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:47:55,105 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 10:47:55,106 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:47:55,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:47:55,107 INFO L82 PathProgramCache]: Analyzing trace with hash -614472852, now seen corresponding path program 1 times [2021-03-24 10:47:55,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:47:55,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426981165] [2021-03-24 10:47:55,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:47:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:47:55,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:55,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:47:55,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:55,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 10:47:55,315 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-24 10:47:55,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 10:47:55,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:55,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 10:47:55,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:47:55,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426981165] [2021-03-24 10:47:55,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:47:55,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 10:47:55,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975730918] [2021-03-24 10:47:55,330 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 10:47:55,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:47:55,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 10:47:55,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 10:47:55,332 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 190 [2021-03-24 10:47:55,333 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 36 transitions, 84 flow. Second operand has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:55,333 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:47:55,333 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 190 [2021-03-24 10:47:55,333 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:47:55,493 INFO L129 PetriNetUnfolder]: 130/280 cut-off events. [2021-03-24 10:47:55,494 INFO L130 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2021-03-24 10:47:55,496 INFO L84 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 280 events. 130/280 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1368 event pairs, 75 based on Foata normal form. 19/287 useless extension candidates. Maximal degree in co-relation 522. Up to 175 conditions per place. [2021-03-24 10:47:55,500 INFO L132 encePairwiseOnDemand]: 181/190 looper letters, 10 selfloop transitions, 9 changer transitions 12/57 dead transitions. [2021-03-24 10:47:55,500 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 57 transitions, 194 flow [2021-03-24 10:47:55,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 10:47:55,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 10:47:55,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1119 transitions. [2021-03-24 10:47:55,505 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8413533834586466 [2021-03-24 10:47:55,505 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1119 transitions. [2021-03-24 10:47:55,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1119 transitions. [2021-03-24 10:47:55,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:47:55,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1119 transitions. [2021-03-24 10:47:55,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 159.85714285714286) internal successors, (1119), 7 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:55,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 190.0) internal successors, (1520), 8 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:55,512 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 190.0) internal successors, (1520), 8 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:55,512 INFO L185 Difference]: Start difference. First operand has 52 places, 36 transitions, 84 flow. Second operand 7 states and 1119 transitions. [2021-03-24 10:47:55,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 57 transitions, 194 flow [2021-03-24 10:47:55,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 57 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 10:47:55,514 INFO L241 Difference]: Finished difference. Result has 56 places, 43 transitions, 149 flow [2021-03-24 10:47:55,514 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=149, PETRI_PLACES=56, PETRI_TRANSITIONS=43} [2021-03-24 10:47:55,515 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 0 predicate places. [2021-03-24 10:47:55,515 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 43 transitions, 149 flow [2021-03-24 10:47:55,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:55,516 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:47:55,516 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:47:55,516 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 10:47:55,516 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:47:55,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:47:55,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1869378484, now seen corresponding path program 1 times [2021-03-24 10:47:55,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:47:55,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349157377] [2021-03-24 10:47:55,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:47:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:47:55,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:55,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:47:55,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:55,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 10:47:55,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:47:55,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349157377] [2021-03-24 10:47:55,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:47:55,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 10:47:55,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908198156] [2021-03-24 10:47:55,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 10:47:55,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:47:55,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 10:47:55,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 10:47:55,656 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 190 [2021-03-24 10:47:55,656 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 43 transitions, 149 flow. Second operand has 4 states, 4 states have (on average 166.75) internal successors, (667), 4 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:55,657 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:47:55,657 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 190 [2021-03-24 10:47:55,657 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:47:55,721 INFO L129 PetriNetUnfolder]: 138/318 cut-off events. [2021-03-24 10:47:55,722 INFO L130 PetriNetUnfolder]: For 333/360 co-relation queries the response was YES. [2021-03-24 10:47:55,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 833 conditions, 318 events. 138/318 cut-off events. For 333/360 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1650 event pairs, 64 based on Foata normal form. 18/299 useless extension candidates. Maximal degree in co-relation 810. Up to 139 conditions per place. [2021-03-24 10:47:55,725 INFO L132 encePairwiseOnDemand]: 185/190 looper letters, 5 selfloop transitions, 3 changer transitions 6/51 dead transitions. [2021-03-24 10:47:55,725 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 51 transitions, 200 flow [2021-03-24 10:47:55,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 10:47:55,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 10:47:55,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 844 transitions. [2021-03-24 10:47:55,728 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.888421052631579 [2021-03-24 10:47:55,728 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 844 transitions. [2021-03-24 10:47:55,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 844 transitions. [2021-03-24 10:47:55,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:47:55,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 844 transitions. [2021-03-24 10:47:55,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 168.8) internal successors, (844), 5 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:55,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:55,733 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:55,733 INFO L185 Difference]: Start difference. First operand has 56 places, 43 transitions, 149 flow. Second operand 5 states and 844 transitions. [2021-03-24 10:47:55,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 51 transitions, 200 flow [2021-03-24 10:47:55,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 51 transitions, 198 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-24 10:47:55,736 INFO L241 Difference]: Finished difference. Result has 59 places, 45 transitions, 176 flow [2021-03-24 10:47:55,736 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=176, PETRI_PLACES=59, PETRI_TRANSITIONS=45} [2021-03-24 10:47:55,736 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 3 predicate places. [2021-03-24 10:47:55,736 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 45 transitions, 176 flow [2021-03-24 10:47:55,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 166.75) internal successors, (667), 4 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:55,737 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:47:55,737 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:47:55,737 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 10:47:55,737 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:47:55,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:47:55,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1219573141, now seen corresponding path program 1 times [2021-03-24 10:47:55,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:47:55,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675159457] [2021-03-24 10:47:55,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:47:55,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:47:55,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:55,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 10:47:55,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:55,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:47:55,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:55,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 10:47:55,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:47:55,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675159457] [2021-03-24 10:47:55,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:47:55,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 10:47:55,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953897045] [2021-03-24 10:47:55,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 10:47:55,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:47:55,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 10:47:55,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 10:47:55,800 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 190 [2021-03-24 10:47:55,801 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 45 transitions, 176 flow. Second operand has 4 states, 4 states have (on average 167.75) internal successors, (671), 4 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:55,801 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:47:55,801 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 190 [2021-03-24 10:47:55,801 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:47:55,921 INFO L129 PetriNetUnfolder]: 329/666 cut-off events. [2021-03-24 10:47:55,922 INFO L130 PetriNetUnfolder]: For 1935/2014 co-relation queries the response was YES. [2021-03-24 10:47:55,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2078 conditions, 666 events. 329/666 cut-off events. For 1935/2014 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 3912 event pairs, 158 based on Foata normal form. 49/603 useless extension candidates. Maximal degree in co-relation 2051. Up to 273 conditions per place. [2021-03-24 10:47:55,930 INFO L132 encePairwiseOnDemand]: 185/190 looper letters, 9 selfloop transitions, 7 changer transitions 0/54 dead transitions. [2021-03-24 10:47:55,930 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 54 transitions, 237 flow [2021-03-24 10:47:55,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 10:47:55,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 10:47:55,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 851 transitions. [2021-03-24 10:47:55,933 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8957894736842106 [2021-03-24 10:47:55,933 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 851 transitions. [2021-03-24 10:47:55,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 851 transitions. [2021-03-24 10:47:55,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:47:55,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 851 transitions. [2021-03-24 10:47:55,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 170.2) internal successors, (851), 5 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:55,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:55,938 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:55,938 INFO L185 Difference]: Start difference. First operand has 59 places, 45 transitions, 176 flow. Second operand 5 states and 851 transitions. [2021-03-24 10:47:55,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 54 transitions, 237 flow [2021-03-24 10:47:55,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 54 transitions, 232 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-24 10:47:55,943 INFO L241 Difference]: Finished difference. Result has 62 places, 51 transitions, 235 flow [2021-03-24 10:47:55,943 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=235, PETRI_PLACES=62, PETRI_TRANSITIONS=51} [2021-03-24 10:47:55,943 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 6 predicate places. [2021-03-24 10:47:55,943 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 235 flow [2021-03-24 10:47:55,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 167.75) internal successors, (671), 4 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:55,944 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:47:55,944 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:47:55,944 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 10:47:55,944 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:47:55,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:47:55,945 INFO L82 PathProgramCache]: Analyzing trace with hash -619814320, now seen corresponding path program 1 times [2021-03-24 10:47:55,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:47:55,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83451874] [2021-03-24 10:47:55,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:47:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:47:56,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:56,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:47:56,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:56,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 10:47:56,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:56,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 10:47:56,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:56,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 10:47:56,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:56,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 10:47:56,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:47:56,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83451874] [2021-03-24 10:47:56,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:47:56,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 10:47:56,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460627711] [2021-03-24 10:47:56,032 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 10:47:56,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:47:56,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 10:47:56,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-24 10:47:56,034 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 190 [2021-03-24 10:47:56,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 235 flow. Second operand has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:56,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:47:56,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 190 [2021-03-24 10:47:56,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:47:56,321 INFO L129 PetriNetUnfolder]: 567/1191 cut-off events. [2021-03-24 10:47:56,321 INFO L130 PetriNetUnfolder]: For 3191/3481 co-relation queries the response was YES. [2021-03-24 10:47:56,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3983 conditions, 1191 events. 567/1191 cut-off events. For 3191/3481 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 8323 event pairs, 150 based on Foata normal form. 57/1133 useless extension candidates. Maximal degree in co-relation 3952. Up to 533 conditions per place. [2021-03-24 10:47:56,335 INFO L132 encePairwiseOnDemand]: 182/190 looper letters, 15 selfloop transitions, 8 changer transitions 14/67 dead transitions. [2021-03-24 10:47:56,335 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 67 transitions, 403 flow [2021-03-24 10:47:56,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 10:47:56,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 10:47:56,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1119 transitions. [2021-03-24 10:47:56,343 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8413533834586466 [2021-03-24 10:47:56,343 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1119 transitions. [2021-03-24 10:47:56,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1119 transitions. [2021-03-24 10:47:56,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:47:56,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1119 transitions. [2021-03-24 10:47:56,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 159.85714285714286) internal successors, (1119), 7 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:56,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 190.0) internal successors, (1520), 8 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:56,349 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 190.0) internal successors, (1520), 8 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:56,349 INFO L185 Difference]: Start difference. First operand has 62 places, 51 transitions, 235 flow. Second operand 7 states and 1119 transitions. [2021-03-24 10:47:56,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 67 transitions, 403 flow [2021-03-24 10:47:56,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 67 transitions, 400 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 10:47:56,356 INFO L241 Difference]: Finished difference. Result has 70 places, 50 transitions, 251 flow [2021-03-24 10:47:56,356 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=251, PETRI_PLACES=70, PETRI_TRANSITIONS=50} [2021-03-24 10:47:56,356 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 14 predicate places. [2021-03-24 10:47:56,356 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 251 flow [2021-03-24 10:47:56,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:56,357 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:47:56,357 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:47:56,357 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 10:47:56,357 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:47:56,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:47:56,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1176689795, now seen corresponding path program 1 times [2021-03-24 10:47:56,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:47:56,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701975179] [2021-03-24 10:47:56,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:47:56,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:47:56,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:56,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 10:47:56,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:56,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:47:56,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:56,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 10:47:56,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:47:56,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701975179] [2021-03-24 10:47:56,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:47:56,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 10:47:56,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533159416] [2021-03-24 10:47:56,460 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 10:47:56,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:47:56,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 10:47:56,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 10:47:56,462 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 190 [2021-03-24 10:47:56,462 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 251 flow. Second operand has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:56,462 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:47:56,463 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 190 [2021-03-24 10:47:56,463 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:47:56,692 INFO L129 PetriNetUnfolder]: 680/1326 cut-off events. [2021-03-24 10:47:56,692 INFO L130 PetriNetUnfolder]: For 8197/8591 co-relation queries the response was YES. [2021-03-24 10:47:56,702 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5629 conditions, 1326 events. 680/1326 cut-off events. For 8197/8591 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 8954 event pairs, 215 based on Foata normal form. 104/1269 useless extension candidates. Maximal degree in co-relation 5594. Up to 634 conditions per place. [2021-03-24 10:47:56,712 INFO L132 encePairwiseOnDemand]: 186/190 looper letters, 8 selfloop transitions, 3 changer transitions 5/57 dead transitions. [2021-03-24 10:47:56,712 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 57 transitions, 332 flow [2021-03-24 10:47:56,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 10:47:56,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 10:47:56,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 850 transitions. [2021-03-24 10:47:56,715 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8947368421052632 [2021-03-24 10:47:56,715 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 850 transitions. [2021-03-24 10:47:56,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 850 transitions. [2021-03-24 10:47:56,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:47:56,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 850 transitions. [2021-03-24 10:47:56,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:56,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:56,719 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:56,719 INFO L185 Difference]: Start difference. First operand has 70 places, 50 transitions, 251 flow. Second operand 5 states and 850 transitions. [2021-03-24 10:47:56,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 57 transitions, 332 flow [2021-03-24 10:47:56,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 57 transitions, 310 flow, removed 6 selfloop flow, removed 5 redundant places. [2021-03-24 10:47:56,728 INFO L241 Difference]: Finished difference. Result has 68 places, 50 transitions, 252 flow [2021-03-24 10:47:56,728 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=252, PETRI_PLACES=68, PETRI_TRANSITIONS=50} [2021-03-24 10:47:56,728 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 12 predicate places. [2021-03-24 10:47:56,729 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 50 transitions, 252 flow [2021-03-24 10:47:56,729 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:56,729 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:47:56,729 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:47:56,729 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 10:47:56,729 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:47:56,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:47:56,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1176704210, now seen corresponding path program 1 times [2021-03-24 10:47:56,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:47:56,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137218877] [2021-03-24 10:47:56,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:47:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:47:56,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:56,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:47:56,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:56,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 10:47:56,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:47:56,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137218877] [2021-03-24 10:47:56,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:47:56,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 10:47:56,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880290306] [2021-03-24 10:47:56,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 10:47:56,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:47:56,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 10:47:56,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 10:47:56,822 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 190 [2021-03-24 10:47:56,823 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 50 transitions, 252 flow. Second operand has 4 states, 4 states have (on average 169.75) internal successors, (679), 4 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:56,823 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:47:56,823 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 190 [2021-03-24 10:47:56,823 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:47:57,032 INFO L129 PetriNetUnfolder]: 489/999 cut-off events. [2021-03-24 10:47:57,032 INFO L130 PetriNetUnfolder]: For 7062/7347 co-relation queries the response was YES. [2021-03-24 10:47:57,039 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4076 conditions, 999 events. 489/999 cut-off events. For 7062/7347 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 6597 event pairs, 173 based on Foata normal form. 94/986 useless extension candidates. Maximal degree in co-relation 4042. Up to 503 conditions per place. [2021-03-24 10:47:57,046 INFO L132 encePairwiseOnDemand]: 186/190 looper letters, 3 selfloop transitions, 2 changer transitions 3/53 dead transitions. [2021-03-24 10:47:57,046 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 53 transitions, 295 flow [2021-03-24 10:47:57,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 10:47:57,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 10:47:57,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 853 transitions. [2021-03-24 10:47:57,049 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8978947368421053 [2021-03-24 10:47:57,049 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 853 transitions. [2021-03-24 10:47:57,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 853 transitions. [2021-03-24 10:47:57,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:47:57,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 853 transitions. [2021-03-24 10:47:57,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 170.6) internal successors, (853), 5 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:57,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:57,054 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:57,054 INFO L185 Difference]: Start difference. First operand has 68 places, 50 transitions, 252 flow. Second operand 5 states and 853 transitions. [2021-03-24 10:47:57,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 53 transitions, 295 flow [2021-03-24 10:47:57,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 53 transitions, 286 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-24 10:47:57,060 INFO L241 Difference]: Finished difference. Result has 70 places, 50 transitions, 257 flow [2021-03-24 10:47:57,060 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=257, PETRI_PLACES=70, PETRI_TRANSITIONS=50} [2021-03-24 10:47:57,061 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 14 predicate places. [2021-03-24 10:47:57,061 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 257 flow [2021-03-24 10:47:57,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 169.75) internal successors, (679), 4 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:57,061 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:47:57,061 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:47:57,061 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 10:47:57,062 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:47:57,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:47:57,062 INFO L82 PathProgramCache]: Analyzing trace with hash 2084458565, now seen corresponding path program 1 times [2021-03-24 10:47:57,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:47:57,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158080000] [2021-03-24 10:47:57,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:47:57,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:47:57,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:57,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 10:47:57,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:57,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 10:47:57,185 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-03-24 10:47:57,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 10:47:57,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:57,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 10:47:57,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:57,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 10:47:57,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:47:57,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158080000] [2021-03-24 10:47:57,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:47:57,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 10:47:57,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177172977] [2021-03-24 10:47:57,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-24 10:47:57,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:47:57,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-24 10:47:57,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-24 10:47:57,230 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 190 [2021-03-24 10:47:57,232 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 257 flow. Second operand has 7 states, 7 states have (on average 148.14285714285714) internal successors, (1037), 7 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:57,232 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:47:57,232 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 190 [2021-03-24 10:47:57,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:47:57,484 INFO L129 PetriNetUnfolder]: 453/980 cut-off events. [2021-03-24 10:47:57,484 INFO L130 PetriNetUnfolder]: For 6225/6480 co-relation queries the response was YES. [2021-03-24 10:47:57,491 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4310 conditions, 980 events. 453/980 cut-off events. For 6225/6480 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 6614 event pairs, 100 based on Foata normal form. 86/999 useless extension candidates. Maximal degree in co-relation 4271. Up to 558 conditions per place. [2021-03-24 10:47:57,497 INFO L132 encePairwiseOnDemand]: 180/190 looper letters, 14 selfloop transitions, 12 changer transitions 12/66 dead transitions. [2021-03-24 10:47:57,497 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 66 transitions, 467 flow [2021-03-24 10:47:57,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 10:47:57,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 10:47:57,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1353 transitions. [2021-03-24 10:47:57,501 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7912280701754386 [2021-03-24 10:47:57,502 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1353 transitions. [2021-03-24 10:47:57,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1353 transitions. [2021-03-24 10:47:57,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:47:57,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1353 transitions. [2021-03-24 10:47:57,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 150.33333333333334) internal successors, (1353), 9 states have internal predecessors, (1353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:57,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 190.0) internal successors, (1900), 10 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:57,508 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 190.0) internal successors, (1900), 10 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:57,509 INFO L185 Difference]: Start difference. First operand has 70 places, 50 transitions, 257 flow. Second operand 9 states and 1353 transitions. [2021-03-24 10:47:57,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 66 transitions, 467 flow [2021-03-24 10:47:57,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 66 transitions, 459 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-24 10:47:57,514 INFO L241 Difference]: Finished difference. Result has 75 places, 52 transitions, 311 flow [2021-03-24 10:47:57,514 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=311, PETRI_PLACES=75, PETRI_TRANSITIONS=52} [2021-03-24 10:47:57,515 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 19 predicate places. [2021-03-24 10:47:57,515 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 52 transitions, 311 flow [2021-03-24 10:47:57,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 148.14285714285714) internal successors, (1037), 7 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:57,515 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:47:57,515 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:47:57,516 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 10:47:57,516 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:47:57,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:47:57,516 INFO L82 PathProgramCache]: Analyzing trace with hash 334558934, now seen corresponding path program 1 times [2021-03-24 10:47:57,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:47:57,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050865968] [2021-03-24 10:47:57,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:47:57,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:47:57,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:57,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:47:57,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:57,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 10:47:57,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:57,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 10:47:57,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:57,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 10:47:57,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:57,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 10:47:57,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:57,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 10:47:57,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:57,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 10:47:57,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:57,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 10:47:57,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:47:57,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050865968] [2021-03-24 10:47:57,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:47:57,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-24 10:47:57,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145596901] [2021-03-24 10:47:57,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-24 10:47:57,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:47:57,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-24 10:47:57,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-03-24 10:47:57,657 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 190 [2021-03-24 10:47:57,660 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 52 transitions, 311 flow. Second operand has 9 states, 9 states have (on average 152.0) internal successors, (1368), 9 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:57,660 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:47:57,660 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 190 [2021-03-24 10:47:57,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:47:57,940 INFO L129 PetriNetUnfolder]: 382/918 cut-off events. [2021-03-24 10:47:57,940 INFO L130 PetriNetUnfolder]: For 6077/6424 co-relation queries the response was YES. [2021-03-24 10:47:57,946 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4463 conditions, 918 events. 382/918 cut-off events. For 6077/6424 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 6455 event pairs, 89 based on Foata normal form. 62/930 useless extension candidates. Maximal degree in co-relation 4420. Up to 385 conditions per place. [2021-03-24 10:47:57,952 INFO L132 encePairwiseOnDemand]: 181/190 looper letters, 17 selfloop transitions, 12 changer transitions 7/64 dead transitions. [2021-03-24 10:47:57,952 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 64 transitions, 523 flow [2021-03-24 10:47:57,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 10:47:57,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 10:47:57,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1386 transitions. [2021-03-24 10:47:57,956 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8105263157894737 [2021-03-24 10:47:57,956 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1386 transitions. [2021-03-24 10:47:57,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1386 transitions. [2021-03-24 10:47:57,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:47:57,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1386 transitions. [2021-03-24 10:47:57,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:57,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 190.0) internal successors, (1900), 10 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:57,963 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 190.0) internal successors, (1900), 10 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:57,963 INFO L185 Difference]: Start difference. First operand has 75 places, 52 transitions, 311 flow. Second operand 9 states and 1386 transitions. [2021-03-24 10:47:57,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 64 transitions, 523 flow [2021-03-24 10:47:57,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 64 transitions, 490 flow, removed 8 selfloop flow, removed 6 redundant places. [2021-03-24 10:47:57,970 INFO L241 Difference]: Finished difference. Result has 78 places, 54 transitions, 354 flow [2021-03-24 10:47:57,970 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=354, PETRI_PLACES=78, PETRI_TRANSITIONS=54} [2021-03-24 10:47:57,971 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 22 predicate places. [2021-03-24 10:47:57,971 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 54 transitions, 354 flow [2021-03-24 10:47:57,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 152.0) internal successors, (1368), 9 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:57,971 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:47:57,971 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:47:57,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-24 10:47:57,972 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:47:57,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:47:57,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1570581966, now seen corresponding path program 1 times [2021-03-24 10:47:57,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:47:57,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704111367] [2021-03-24 10:47:57,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:47:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:47:58,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:58,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:47:58,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:58,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 10:47:58,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:58,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 10:47:58,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:58,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 10:47:58,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:58,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 10:47:58,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:58,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 10:47:58,105 INFO L142 QuantifierPusher]: treesize reduction 26, result has 54.4 percent of original size [2021-03-24 10:47:58,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 10:47:58,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:58,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 10:47:58,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:47:58,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704111367] [2021-03-24 10:47:58,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:47:58,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-24 10:47:58,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843081416] [2021-03-24 10:47:58,138 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-24 10:47:58,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:47:58,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-24 10:47:58,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-03-24 10:47:58,141 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 190 [2021-03-24 10:47:58,142 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 54 transitions, 354 flow. Second operand has 10 states, 10 states have (on average 150.9) internal successors, (1509), 10 states have internal predecessors, (1509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:58,142 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:47:58,142 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 190 [2021-03-24 10:47:58,142 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:47:58,433 INFO L129 PetriNetUnfolder]: 381/838 cut-off events. [2021-03-24 10:47:58,433 INFO L130 PetriNetUnfolder]: For 7779/8198 co-relation queries the response was YES. [2021-03-24 10:47:58,440 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4619 conditions, 838 events. 381/838 cut-off events. For 7779/8198 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 5404 event pairs, 110 based on Foata normal form. 34/815 useless extension candidates. Maximal degree in co-relation 4574. Up to 530 conditions per place. [2021-03-24 10:47:58,446 INFO L132 encePairwiseOnDemand]: 180/190 looper letters, 28 selfloop transitions, 11 changer transitions 6/73 dead transitions. [2021-03-24 10:47:58,447 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 73 transitions, 635 flow [2021-03-24 10:47:58,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 10:47:58,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 10:47:58,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1531 transitions. [2021-03-24 10:47:58,451 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8057894736842105 [2021-03-24 10:47:58,451 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1531 transitions. [2021-03-24 10:47:58,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1531 transitions. [2021-03-24 10:47:58,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:47:58,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1531 transitions. [2021-03-24 10:47:58,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 153.1) internal successors, (1531), 10 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:58,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 190.0) internal successors, (2090), 11 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:58,458 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 190.0) internal successors, (2090), 11 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:58,458 INFO L185 Difference]: Start difference. First operand has 78 places, 54 transitions, 354 flow. Second operand 10 states and 1531 transitions. [2021-03-24 10:47:58,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 73 transitions, 635 flow [2021-03-24 10:47:58,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 73 transitions, 594 flow, removed 11 selfloop flow, removed 7 redundant places. [2021-03-24 10:47:58,467 INFO L241 Difference]: Finished difference. Result has 82 places, 58 transitions, 389 flow [2021-03-24 10:47:58,467 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=389, PETRI_PLACES=82, PETRI_TRANSITIONS=58} [2021-03-24 10:47:58,467 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 26 predicate places. [2021-03-24 10:47:58,467 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 58 transitions, 389 flow [2021-03-24 10:47:58,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 150.9) internal successors, (1509), 10 states have internal predecessors, (1509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:58,468 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:47:58,468 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:47:58,468 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-24 10:47:58,468 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:47:58,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:47:58,469 INFO L82 PathProgramCache]: Analyzing trace with hash 542998672, now seen corresponding path program 2 times [2021-03-24 10:47:58,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:47:58,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118452173] [2021-03-24 10:47:58,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:47:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:47:58,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:58,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 10:47:58,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:58,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 10:47:58,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:58,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 10:47:58,589 INFO L142 QuantifierPusher]: treesize reduction 31, result has 43.6 percent of original size [2021-03-24 10:47:58,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 10:47:58,612 INFO L142 QuantifierPusher]: treesize reduction 66, result has 24.1 percent of original size [2021-03-24 10:47:58,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 10:47:58,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:58,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 10:47:58,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:47:58,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118452173] [2021-03-24 10:47:58,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:47:58,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 10:47:58,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040226453] [2021-03-24 10:47:58,629 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 10:47:58,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:47:58,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 10:47:58,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-24 10:47:58,630 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 190 [2021-03-24 10:47:58,631 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 58 transitions, 389 flow. Second operand has 6 states, 6 states have (on average 156.16666666666666) internal successors, (937), 6 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:58,631 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:47:58,632 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 190 [2021-03-24 10:47:58,632 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:47:58,834 INFO L129 PetriNetUnfolder]: 368/821 cut-off events. [2021-03-24 10:47:58,834 INFO L130 PetriNetUnfolder]: For 7701/8271 co-relation queries the response was YES. [2021-03-24 10:47:58,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4671 conditions, 821 events. 368/821 cut-off events. For 7701/8271 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 5275 event pairs, 108 based on Foata normal form. 40/803 useless extension candidates. Maximal degree in co-relation 4626. Up to 523 conditions per place. [2021-03-24 10:47:58,847 INFO L132 encePairwiseOnDemand]: 182/190 looper letters, 29 selfloop transitions, 9 changer transitions 5/73 dead transitions. [2021-03-24 10:47:58,847 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 73 transitions, 635 flow [2021-03-24 10:47:58,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 10:47:58,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 10:47:58,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1113 transitions. [2021-03-24 10:47:58,850 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8368421052631579 [2021-03-24 10:47:58,850 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1113 transitions. [2021-03-24 10:47:58,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1113 transitions. [2021-03-24 10:47:58,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:47:58,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1113 transitions. [2021-03-24 10:47:58,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:58,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 190.0) internal successors, (1520), 8 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:58,856 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 190.0) internal successors, (1520), 8 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:58,856 INFO L185 Difference]: Start difference. First operand has 82 places, 58 transitions, 389 flow. Second operand 7 states and 1113 transitions. [2021-03-24 10:47:58,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 73 transitions, 635 flow [2021-03-24 10:47:58,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 73 transitions, 595 flow, removed 14 selfloop flow, removed 7 redundant places. [2021-03-24 10:47:58,865 INFO L241 Difference]: Finished difference. Result has 82 places, 61 transitions, 422 flow [2021-03-24 10:47:58,865 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=422, PETRI_PLACES=82, PETRI_TRANSITIONS=61} [2021-03-24 10:47:58,865 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 26 predicate places. [2021-03-24 10:47:58,865 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 61 transitions, 422 flow [2021-03-24 10:47:58,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 156.16666666666666) internal successors, (937), 6 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:58,866 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:47:58,866 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:47:58,866 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-24 10:47:58,866 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:47:58,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:47:58,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1199397404, now seen corresponding path program 1 times [2021-03-24 10:47:58,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:47:58,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427590887] [2021-03-24 10:47:58,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:47:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:47:58,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:58,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:47:58,933 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 10:47:58,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 10:47:58,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:58,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 10:47:58,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:47:58,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427590887] [2021-03-24 10:47:58,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:47:58,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 10:47:58,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521917872] [2021-03-24 10:47:58,941 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 10:47:58,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:47:58,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 10:47:58,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 10:47:58,942 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 190 [2021-03-24 10:47:58,943 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 61 transitions, 422 flow. Second operand has 4 states, 4 states have (on average 157.75) internal successors, (631), 4 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:58,943 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:47:58,943 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 190 [2021-03-24 10:47:58,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:47:59,370 INFO L129 PetriNetUnfolder]: 1733/3139 cut-off events. [2021-03-24 10:47:59,371 INFO L130 PetriNetUnfolder]: For 14131/15960 co-relation queries the response was YES. [2021-03-24 10:47:59,395 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11342 conditions, 3139 events. 1733/3139 cut-off events. For 14131/15960 co-relation queries the response was YES. Maximal size of possible extension queue 447. Compared 24140 event pairs, 771 based on Foata normal form. 358/2878 useless extension candidates. Maximal degree in co-relation 11299. Up to 1794 conditions per place. [2021-03-24 10:47:59,417 INFO L132 encePairwiseOnDemand]: 183/190 looper letters, 15 selfloop transitions, 10 changer transitions 0/75 dead transitions. [2021-03-24 10:47:59,418 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 75 transitions, 500 flow [2021-03-24 10:47:59,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 10:47:59,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 10:47:59,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 809 transitions. [2021-03-24 10:47:59,420 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8515789473684211 [2021-03-24 10:47:59,420 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 809 transitions. [2021-03-24 10:47:59,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 809 transitions. [2021-03-24 10:47:59,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:47:59,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 809 transitions. [2021-03-24 10:47:59,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 161.8) internal successors, (809), 5 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:59,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:59,436 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:59,437 INFO L185 Difference]: Start difference. First operand has 82 places, 61 transitions, 422 flow. Second operand 5 states and 809 transitions. [2021-03-24 10:47:59,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 75 transitions, 500 flow [2021-03-24 10:47:59,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 75 transitions, 478 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-03-24 10:47:59,450 INFO L241 Difference]: Finished difference. Result has 82 places, 70 transitions, 487 flow [2021-03-24 10:47:59,450 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=487, PETRI_PLACES=82, PETRI_TRANSITIONS=70} [2021-03-24 10:47:59,450 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 26 predicate places. [2021-03-24 10:47:59,450 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 70 transitions, 487 flow [2021-03-24 10:47:59,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 157.75) internal successors, (631), 4 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:59,451 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:47:59,451 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:47:59,451 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-24 10:47:59,455 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:47:59,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:47:59,456 INFO L82 PathProgramCache]: Analyzing trace with hash -2021327887, now seen corresponding path program 1 times [2021-03-24 10:47:59,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:47:59,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414437673] [2021-03-24 10:47:59,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:47:59,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:47:59,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:59,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:47:59,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:59,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:47:59,515 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 10:47:59,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 10:47:59,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:59,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 10:47:59,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:47:59,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414437673] [2021-03-24 10:47:59,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:47:59,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 10:47:59,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385873554] [2021-03-24 10:47:59,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 10:47:59,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:47:59,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 10:47:59,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 10:47:59,526 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 190 [2021-03-24 10:47:59,526 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 70 transitions, 487 flow. Second operand has 5 states, 5 states have (on average 157.8) internal successors, (789), 5 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:59,526 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:47:59,526 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 190 [2021-03-24 10:47:59,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:47:59,884 INFO L129 PetriNetUnfolder]: 1204/2365 cut-off events. [2021-03-24 10:47:59,884 INFO L130 PetriNetUnfolder]: For 11380/24161 co-relation queries the response was YES. [2021-03-24 10:47:59,902 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10426 conditions, 2365 events. 1204/2365 cut-off events. For 11380/24161 co-relation queries the response was YES. Maximal size of possible extension queue 378. Compared 18125 event pairs, 200 based on Foata normal form. 810/2830 useless extension candidates. Maximal degree in co-relation 10383. Up to 1448 conditions per place. [2021-03-24 10:47:59,913 INFO L132 encePairwiseOnDemand]: 183/190 looper letters, 14 selfloop transitions, 19 changer transitions 4/84 dead transitions. [2021-03-24 10:47:59,913 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 84 transitions, 631 flow [2021-03-24 10:47:59,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 10:47:59,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 10:47:59,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1133 transitions. [2021-03-24 10:47:59,916 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8518796992481203 [2021-03-24 10:47:59,916 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1133 transitions. [2021-03-24 10:47:59,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1133 transitions. [2021-03-24 10:47:59,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:47:59,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1133 transitions. [2021-03-24 10:47:59,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 161.85714285714286) internal successors, (1133), 7 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:59,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 190.0) internal successors, (1520), 8 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:59,921 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 190.0) internal successors, (1520), 8 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:59,921 INFO L185 Difference]: Start difference. First operand has 82 places, 70 transitions, 487 flow. Second operand 7 states and 1133 transitions. [2021-03-24 10:47:59,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 84 transitions, 631 flow [2021-03-24 10:47:59,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 84 transitions, 624 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-24 10:47:59,934 INFO L241 Difference]: Finished difference. Result has 90 places, 74 transitions, 574 flow [2021-03-24 10:47:59,935 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=574, PETRI_PLACES=90, PETRI_TRANSITIONS=74} [2021-03-24 10:47:59,935 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 34 predicate places. [2021-03-24 10:47:59,935 INFO L480 AbstractCegarLoop]: Abstraction has has 90 places, 74 transitions, 574 flow [2021-03-24 10:47:59,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 157.8) internal successors, (789), 5 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:59,935 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:47:59,935 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:47:59,936 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-24 10:47:59,936 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:47:59,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:47:59,936 INFO L82 PathProgramCache]: Analyzing trace with hash -256057, now seen corresponding path program 1 times [2021-03-24 10:47:59,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:47:59,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844277867] [2021-03-24 10:47:59,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:47:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:47:59,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:59,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 10:47:59,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:59,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:47:59,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:47:59,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 10:47:59,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:47:59,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844277867] [2021-03-24 10:47:59,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:47:59,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 10:47:59,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547689690] [2021-03-24 10:47:59,985 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 10:47:59,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:47:59,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 10:47:59,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 10:47:59,986 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 190 [2021-03-24 10:47:59,987 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 74 transitions, 574 flow. Second operand has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:47:59,987 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:47:59,987 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 190 [2021-03-24 10:47:59,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:48:00,362 INFO L129 PetriNetUnfolder]: 1420/2890 cut-off events. [2021-03-24 10:48:00,363 INFO L130 PetriNetUnfolder]: For 21442/32569 co-relation queries the response was YES. [2021-03-24 10:48:00,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15561 conditions, 2890 events. 1420/2890 cut-off events. For 21442/32569 co-relation queries the response was YES. Maximal size of possible extension queue 466. Compared 23882 event pairs, 301 based on Foata normal form. 185/2696 useless extension candidates. Maximal degree in co-relation 15514. Up to 1868 conditions per place. [2021-03-24 10:48:00,394 INFO L132 encePairwiseOnDemand]: 186/190 looper letters, 5 selfloop transitions, 5 changer transitions 0/77 dead transitions. [2021-03-24 10:48:00,394 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 77 transitions, 636 flow [2021-03-24 10:48:00,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 10:48:00,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 10:48:00,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 841 transitions. [2021-03-24 10:48:00,397 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8852631578947369 [2021-03-24 10:48:00,397 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 841 transitions. [2021-03-24 10:48:00,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 841 transitions. [2021-03-24 10:48:00,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:48:00,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 841 transitions. [2021-03-24 10:48:00,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 168.2) internal successors, (841), 5 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:48:00,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:48:00,402 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:48:00,402 INFO L185 Difference]: Start difference. First operand has 90 places, 74 transitions, 574 flow. Second operand 5 states and 841 transitions. [2021-03-24 10:48:00,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 77 transitions, 636 flow [2021-03-24 10:48:00,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 77 transitions, 576 flow, removed 19 selfloop flow, removed 4 redundant places. [2021-03-24 10:48:00,454 INFO L241 Difference]: Finished difference. Result has 93 places, 76 transitions, 567 flow [2021-03-24 10:48:00,454 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=567, PETRI_PLACES=93, PETRI_TRANSITIONS=76} [2021-03-24 10:48:00,454 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 37 predicate places. [2021-03-24 10:48:00,454 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 76 transitions, 567 flow [2021-03-24 10:48:00,454 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:48:00,455 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:48:00,455 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:48:00,455 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-24 10:48:00,455 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:48:00,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:48:00,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1917540958, now seen corresponding path program 1 times [2021-03-24 10:48:00,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:48:00,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992805203] [2021-03-24 10:48:00,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:48:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:48:00,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:48:00,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:48:00,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:48:00,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:48:00,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:48:00,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:48:00,541 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 10:48:00,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 10:48:00,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:48:00,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 10:48:00,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:48:00,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992805203] [2021-03-24 10:48:00,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:48:00,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 10:48:00,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721687741] [2021-03-24 10:48:00,551 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 10:48:00,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:48:00,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 10:48:00,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-24 10:48:00,552 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 190 [2021-03-24 10:48:00,553 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 76 transitions, 567 flow. Second operand has 6 states, 6 states have (on average 157.83333333333334) internal successors, (947), 6 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:48:00,553 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:48:00,553 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 190 [2021-03-24 10:48:00,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:48:00,984 INFO L129 PetriNetUnfolder]: 1367/2648 cut-off events. [2021-03-24 10:48:00,985 INFO L130 PetriNetUnfolder]: For 17252/37189 co-relation queries the response was YES. [2021-03-24 10:48:01,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12595 conditions, 2648 events. 1367/2648 cut-off events. For 17252/37189 co-relation queries the response was YES. Maximal size of possible extension queue 485. Compared 21175 event pairs, 38 based on Foata normal form. 1322/3496 useless extension candidates. Maximal degree in co-relation 12547. Up to 1570 conditions per place. [2021-03-24 10:48:01,014 INFO L132 encePairwiseOnDemand]: 183/190 looper letters, 10 selfloop transitions, 28 changer transitions 6/91 dead transitions. [2021-03-24 10:48:01,014 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 91 transitions, 768 flow [2021-03-24 10:48:01,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 10:48:01,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 10:48:01,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1457 transitions. [2021-03-24 10:48:01,018 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8520467836257309 [2021-03-24 10:48:01,018 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1457 transitions. [2021-03-24 10:48:01,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1457 transitions. [2021-03-24 10:48:01,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:48:01,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1457 transitions. [2021-03-24 10:48:01,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 161.88888888888889) internal successors, (1457), 9 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:48:01,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 190.0) internal successors, (1900), 10 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:48:01,025 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 190.0) internal successors, (1900), 10 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:48:01,025 INFO L185 Difference]: Start difference. First operand has 93 places, 76 transitions, 567 flow. Second operand 9 states and 1457 transitions. [2021-03-24 10:48:01,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 91 transitions, 768 flow [2021-03-24 10:48:01,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 91 transitions, 752 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-24 10:48:01,062 INFO L241 Difference]: Finished difference. Result has 102 places, 82 transitions, 684 flow [2021-03-24 10:48:01,063 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=684, PETRI_PLACES=102, PETRI_TRANSITIONS=82} [2021-03-24 10:48:01,063 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 46 predicate places. [2021-03-24 10:48:01,063 INFO L480 AbstractCegarLoop]: Abstraction has has 102 places, 82 transitions, 684 flow [2021-03-24 10:48:01,063 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 157.83333333333334) internal successors, (947), 6 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:48:01,063 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:48:01,063 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:48:01,064 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-24 10:48:01,064 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:48:01,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:48:01,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1393307848, now seen corresponding path program 1 times [2021-03-24 10:48:01,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:48:01,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006591077] [2021-03-24 10:48:01,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:48:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:48:01,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:48:01,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:48:01,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:48:01,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:48:01,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:48:01,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:48:01,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:48:01,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:48:01,150 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 10:48:01,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 10:48:01,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:48:01,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 10:48:01,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:48:01,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006591077] [2021-03-24 10:48:01,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:48:01,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 10:48:01,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644737246] [2021-03-24 10:48:01,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-24 10:48:01,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:48:01,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-24 10:48:01,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-24 10:48:01,162 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 190 [2021-03-24 10:48:01,163 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 82 transitions, 684 flow. Second operand has 7 states, 7 states have (on average 157.85714285714286) internal successors, (1105), 7 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:48:01,163 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:48:01,163 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 190 [2021-03-24 10:48:01,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:48:01,565 INFO L129 PetriNetUnfolder]: 1214/2368 cut-off events. [2021-03-24 10:48:01,565 INFO L130 PetriNetUnfolder]: For 20369/49555 co-relation queries the response was YES. [2021-03-24 10:48:01,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13428 conditions, 2368 events. 1214/2368 cut-off events. For 20369/49555 co-relation queries the response was YES. Maximal size of possible extension queue 477. Compared 18990 event pairs, 5 based on Foata normal form. 1270/3174 useless extension candidates. Maximal degree in co-relation 13388. Up to 1436 conditions per place. [2021-03-24 10:48:01,595 INFO L132 encePairwiseOnDemand]: 183/190 looper letters, 6 selfloop transitions, 33 changer transitions 5/91 dead transitions. [2021-03-24 10:48:01,595 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 91 transitions, 836 flow [2021-03-24 10:48:01,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 10:48:01,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-24 10:48:01,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1773 transitions. [2021-03-24 10:48:01,600 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8483253588516746 [2021-03-24 10:48:01,600 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1773 transitions. [2021-03-24 10:48:01,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1773 transitions. [2021-03-24 10:48:01,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:48:01,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1773 transitions. [2021-03-24 10:48:01,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 161.1818181818182) internal successors, (1773), 11 states have internal predecessors, (1773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:48:01,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 190.0) internal successors, (2280), 12 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:48:01,608 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 190.0) internal successors, (2280), 12 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:48:01,609 INFO L185 Difference]: Start difference. First operand has 102 places, 82 transitions, 684 flow. Second operand 11 states and 1773 transitions. [2021-03-24 10:48:01,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 91 transitions, 836 flow [2021-03-24 10:48:01,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 91 transitions, 679 flow, removed 61 selfloop flow, removed 10 redundant places. [2021-03-24 10:48:01,802 INFO L241 Difference]: Finished difference. Result has 103 places, 83 transitions, 621 flow [2021-03-24 10:48:01,802 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=621, PETRI_PLACES=103, PETRI_TRANSITIONS=83} [2021-03-24 10:48:01,802 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 47 predicate places. [2021-03-24 10:48:01,802 INFO L480 AbstractCegarLoop]: Abstraction has has 103 places, 83 transitions, 621 flow [2021-03-24 10:48:01,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 157.85714285714286) internal successors, (1105), 7 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:48:01,803 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:48:01,803 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:48:01,803 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-24 10:48:01,803 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:48:01,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:48:01,804 INFO L82 PathProgramCache]: Analyzing trace with hash 636870440, now seen corresponding path program 1 times [2021-03-24 10:48:01,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:48:01,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506150076] [2021-03-24 10:48:01,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:48:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:48:01,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:48:01,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 10:48:01,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:48:01,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:48:01,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:48:01,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:48:01,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:48:01,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 10:48:01,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:48:01,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506150076] [2021-03-24 10:48:01,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:48:01,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 10:48:01,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864767901] [2021-03-24 10:48:01,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 10:48:01,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:48:01,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 10:48:01,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 10:48:01,883 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 190 [2021-03-24 10:48:01,883 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 83 transitions, 621 flow. Second operand has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:48:01,883 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:48:01,883 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 190 [2021-03-24 10:48:01,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:48:02,227 INFO L129 PetriNetUnfolder]: 1520/3336 cut-off events. [2021-03-24 10:48:02,227 INFO L130 PetriNetUnfolder]: For 14241/17770 co-relation queries the response was YES. [2021-03-24 10:48:02,247 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14880 conditions, 3336 events. 1520/3336 cut-off events. For 14241/17770 co-relation queries the response was YES. Maximal size of possible extension queue 756. Compared 31664 event pairs, 10 based on Foata normal form. 78/2844 useless extension candidates. Maximal degree in co-relation 14831. Up to 1000 conditions per place. [2021-03-24 10:48:02,253 INFO L132 encePairwiseOnDemand]: 186/190 looper letters, 4 selfloop transitions, 1 changer transitions 11/85 dead transitions. [2021-03-24 10:48:02,253 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 85 transitions, 645 flow [2021-03-24 10:48:02,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 10:48:02,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 10:48:02,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 833 transitions. [2021-03-24 10:48:02,255 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8768421052631579 [2021-03-24 10:48:02,255 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 833 transitions. [2021-03-24 10:48:02,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 833 transitions. [2021-03-24 10:48:02,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:48:02,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 833 transitions. [2021-03-24 10:48:02,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 166.6) internal successors, (833), 5 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:48:02,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:48:02,258 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:48:02,258 INFO L185 Difference]: Start difference. First operand has 103 places, 83 transitions, 621 flow. Second operand 5 states and 833 transitions. [2021-03-24 10:48:02,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 85 transitions, 645 flow [2021-03-24 10:48:02,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 85 transitions, 518 flow, removed 33 selfloop flow, removed 13 redundant places. [2021-03-24 10:48:02,546 INFO L241 Difference]: Finished difference. Result has 96 places, 74 transitions, 439 flow [2021-03-24 10:48:02,546 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=439, PETRI_PLACES=96, PETRI_TRANSITIONS=74} [2021-03-24 10:48:02,547 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 40 predicate places. [2021-03-24 10:48:02,547 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 74 transitions, 439 flow [2021-03-24 10:48:02,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:48:02,547 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:48:02,547 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:48:02,547 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-24 10:48:02,547 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:48:02,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:48:02,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1425892928, now seen corresponding path program 2 times [2021-03-24 10:48:02,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:48:02,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875094811] [2021-03-24 10:48:02,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:48:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 10:48:02,580 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 10:48:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 10:48:02,612 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 10:48:02,639 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-24 10:48:02,640 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-24 10:48:02,640 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-24 10:48:02,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 10:48:02 BasicIcfg [2021-03-24 10:48:02,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 10:48:02,742 INFO L168 Benchmark]: Toolchain (without parser) took 19257.16 ms. Allocated memory was 255.9 MB in the beginning and 690.0 MB in the end (delta: 434.1 MB). Free memory was 233.2 MB in the beginning and 285.4 MB in the end (delta: -52.1 MB). Peak memory consumption was 380.5 MB. Max. memory is 16.0 GB. [2021-03-24 10:48:02,742 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 10:48:02,742 INFO L168 Benchmark]: CACSL2BoogieTranslator took 539.11 ms. Allocated memory was 255.9 MB in the beginning and 331.4 MB in the end (delta: 75.5 MB). Free memory was 233.2 MB in the beginning and 289.6 MB in the end (delta: -56.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-03-24 10:48:02,742 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.24 ms. Allocated memory is still 331.4 MB. Free memory was 289.6 MB in the beginning and 286.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-24 10:48:02,743 INFO L168 Benchmark]: Boogie Preprocessor took 28.79 ms. Allocated memory is still 331.4 MB. Free memory was 286.7 MB in the beginning and 284.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 10:48:02,743 INFO L168 Benchmark]: RCFGBuilder took 1918.63 ms. Allocated memory was 331.4 MB in the beginning and 398.5 MB in the end (delta: 67.1 MB). Free memory was 284.6 MB in the beginning and 357.7 MB in the end (delta: -73.0 MB). Peak memory consumption was 58.4 MB. Max. memory is 16.0 GB. [2021-03-24 10:48:02,743 INFO L168 Benchmark]: TraceAbstraction took 16694.71 ms. Allocated memory was 398.5 MB in the beginning and 690.0 MB in the end (delta: 291.5 MB). Free memory was 357.7 MB in the beginning and 285.4 MB in the end (delta: 72.3 MB). Peak memory consumption was 362.8 MB. Max. memory is 16.0 GB. [2021-03-24 10:48:02,754 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 539.11 ms. Allocated memory was 255.9 MB in the beginning and 331.4 MB in the end (delta: 75.5 MB). Free memory was 233.2 MB in the beginning and 289.6 MB in the end (delta: -56.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 71.24 ms. Allocated memory is still 331.4 MB. Free memory was 289.6 MB in the beginning and 286.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.79 ms. Allocated memory is still 331.4 MB. Free memory was 286.7 MB in the beginning and 284.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1918.63 ms. Allocated memory was 331.4 MB in the beginning and 398.5 MB in the end (delta: 67.1 MB). Free memory was 284.6 MB in the beginning and 357.7 MB in the end (delta: -73.0 MB). Peak memory consumption was 58.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 16694.71 ms. Allocated memory was 398.5 MB in the beginning and 690.0 MB in the end (delta: 291.5 MB). Free memory was 357.7 MB in the beginning and 285.4 MB in the end (delta: 72.3 MB). Peak memory consumption was 362.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8397.0ms, 122 PlacesBefore, 56 PlacesAfterwards, 111 TransitionsBefore, 44 TransitionsAfterwards, 2630 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 75 TotalNumberOfCompositions, 5123 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2234, positive: 2112, positive conditional: 0, positive unconditional: 2112, negative: 122, negative conditional: 0, negative unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1197, positive: 1165, positive conditional: 0, positive unconditional: 1165, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1197, positive: 1165, positive conditional: 0, positive unconditional: 1165, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2234, positive: 947, positive conditional: 0, positive unconditional: 947, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 1197, unknown conditional: 0, unknown unconditional: 1197] , Statistics on independence cache: Total cache size (in pairs): 131, Positive cache size: 116, Positive conditional cache size: 0, Positive unconditional cache size: 116, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p3_EAX = 0; [L714] 0 int __unbuffered_p3_EBX = 0; [L716] 0 int a = 0; [L717] 0 _Bool main$tmp_guard0; [L718] 0 _Bool main$tmp_guard1; [L720] 0 int x = 0; [L722] 0 int y = 0; [L723] 0 _Bool y$flush_delayed; [L724] 0 int y$mem_tmp; [L725] 0 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0] [L726] 0 _Bool y$r_buff0_thd1; [L727] 0 _Bool y$r_buff0_thd2; [L728] 0 _Bool y$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0] [L729] 0 _Bool y$r_buff0_thd4; [L730] 0 _Bool y$r_buff1_thd0; [L731] 0 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0] [L732] 0 _Bool y$r_buff1_thd2; [L733] 0 _Bool y$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0] [L734] 0 _Bool y$r_buff1_thd4; [L735] 0 _Bool y$read_delayed; [L736] 0 int *y$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}] [L737] 0 int y$w_buff0; [L738] 0 _Bool y$w_buff0_used; [L739] 0 int y$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0] [L740] 0 _Bool y$w_buff1_used; [L742] 0 int z = 0; [L743] 0 _Bool weak$$choice0; [L744] 0 _Bool weak$$choice2; [L844] 0 pthread_t t813; [L845] FCALL, FORK 0 pthread_create(&t813, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L846] 0 pthread_t t814; [L847] FCALL, FORK 0 pthread_create(&t814, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L848] 0 pthread_t t815; [L849] FCALL, FORK 0 pthread_create(&t815, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L850] 0 pthread_t t816; [L851] FCALL, FORK 0 pthread_create(&t816, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L783] 3 y$w_buff1 = y$w_buff0 [L784] 3 y$w_buff0 = 2 [L785] 3 y$w_buff1_used = y$w_buff0_used [L786] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L788] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L789] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L790] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L791] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L792] 3 y$r_buff1_thd4 = y$r_buff0_thd4 [L793] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L796] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L813] 4 z = 2 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L816] 4 __unbuffered_p3_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L819] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L748] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L751] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L763] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L766] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L769] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L769] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L769] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L769] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L770] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L770] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L771] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L772] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L772] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L773] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L773] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L799] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L799] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L800] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L800] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L801] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L801] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L802] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L802] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L803] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L803] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L822] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L822] EXPR 4 y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y [L822] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L822] 4 y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L823] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L823] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L824] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L824] 4 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L825] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L825] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L826] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 [L826] 4 y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 [L756] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L758] 1 return 0; [L776] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L778] 2 return 0; [L806] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L808] 3 return 0; [L829] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L831] 4 return 0; [L853] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L857] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L857] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L857] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L857] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L858] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L858] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L859] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L859] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L860] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L860] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L861] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L861] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L864] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L865] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L866] 0 y$flush_delayed = weak$$choice2 [L867] 0 y$mem_tmp = y [L868] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L868] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L869] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L869] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0) [L869] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L869] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L870] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L870] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1) [L870] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L870] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L871] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L871] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used) [L871] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L871] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L872] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L872] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L872] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L872] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L873] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L873] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0) [L873] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L873] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L874] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L874] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L874] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L874] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L875] 0 main$tmp_guard1 = !(x == 2 && y == 2 && z == 2 && __unbuffered_p3_EAX == 2 && __unbuffered_p3_EBX == 0) [L876] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L876] 0 y = y$flush_delayed ? y$mem_tmp : y [L877] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 114 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 16463.1ms, OverallIterations: 18, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 5806.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8496.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 111 SDtfs, 128 SDslu, 105 SDs, 0 SdLazy, 530 SolverSat, 163 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 625.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 687.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=684occurred in iteration=15, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 63.2ms SsaConstructionTime, 585.1ms SatisfiabilityAnalysisTime, 1203.3ms InterpolantComputationTime, 447 NumberOfCodeBlocks, 447 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 395 ConstructedInterpolants, 0 QuantifiedInterpolants, 1953 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...