/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe004_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 21:08:27,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 21:08:27,394 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 21:08:27,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 21:08:27,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 21:08:27,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 21:08:27,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 21:08:27,449 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 21:08:27,451 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 21:08:27,456 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 21:08:27,457 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 21:08:27,458 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 21:08:27,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 21:08:27,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 21:08:27,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 21:08:27,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 21:08:27,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 21:08:27,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 21:08:27,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 21:08:27,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 21:08:27,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 21:08:27,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 21:08:27,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 21:08:27,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 21:08:27,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-10 21:08:27,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-10 21:08:27,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-10 21:08:27,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-10 21:08:27,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-10 21:08:27,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-10 21:08:27,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 21:08:27,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 21:08:27,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 21:08:27,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 21:08:27,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 21:08:27,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 21:08:27,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 21:08:27,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 21:08:27,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 21:08:27,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 21:08:27,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 21:08:27,484 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-SemanticLbe.epf [2021-06-10 21:08:27,501 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 21:08:27,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 21:08:27,503 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 21:08:27,503 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 21:08:27,503 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 21:08:27,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 21:08:27,504 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 21:08:27,504 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 21:08:27,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 21:08:27,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 21:08:27,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 21:08:27,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 21:08:27,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 21:08:27,504 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 21:08:27,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 21:08:27,505 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 21:08:27,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 21:08:27,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 21:08:27,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 21:08:27,505 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 21:08:27,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 21:08:27,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 21:08:27,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 21:08:27,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 21:08:27,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 21:08:27,506 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 21:08:27,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 21:08:27,506 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 21:08:27,506 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 21:08:27,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 21:08:27,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 21:08:27,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 21:08:27,791 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 21:08:27,792 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 21:08:27,793 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_power.opt.i [2021-06-10 21:08:27,861 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23c951b7d/0e4c8a654bba4cceb0b617f4ce89538a/FLAGc93d5d587 [2021-06-10 21:08:28,443 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 21:08:28,444 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe004_power.opt.i [2021-06-10 21:08:28,471 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23c951b7d/0e4c8a654bba4cceb0b617f4ce89538a/FLAGc93d5d587 [2021-06-10 21:08:28,734 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23c951b7d/0e4c8a654bba4cceb0b617f4ce89538a [2021-06-10 21:08:28,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 21:08:28,739 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 21:08:28,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 21:08:28,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 21:08:28,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 21:08:28,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 09:08:28" (1/1) ... [2021-06-10 21:08:28,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30393563 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:08:28, skipping insertion in model container [2021-06-10 21:08:28,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 09:08:28" (1/1) ... [2021-06-10 21:08:28,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 21:08:28,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 21:08:28,946 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/safe004_power.opt.i[951,964] [2021-06-10 21:08:29,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 21:08:29,134 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 21:08:29,143 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/safe004_power.opt.i[951,964] [2021-06-10 21:08:29,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 21:08:29,260 INFO L208 MainTranslator]: Completed translation [2021-06-10 21:08:29,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:08:29 WrapperNode [2021-06-10 21:08:29,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 21:08:29,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 21:08:29,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 21:08:29,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 21:08:29,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:08:29" (1/1) ... [2021-06-10 21:08:29,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:08:29" (1/1) ... [2021-06-10 21:08:29,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 21:08:29,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 21:08:29,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 21:08:29,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 21:08:29,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:08:29" (1/1) ... [2021-06-10 21:08:29,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:08:29" (1/1) ... [2021-06-10 21:08:29,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:08:29" (1/1) ... [2021-06-10 21:08:29,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:08:29" (1/1) ... [2021-06-10 21:08:29,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:08:29" (1/1) ... [2021-06-10 21:08:29,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:08:29" (1/1) ... [2021-06-10 21:08:29,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:08:29" (1/1) ... [2021-06-10 21:08:29,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 21:08:29,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 21:08:29,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 21:08:29,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 21:08:29,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:08:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 21:08:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 21:08:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-10 21:08:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 21:08:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 21:08:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-10 21:08:29,421 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-10 21:08:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-10 21:08:29,421 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-10 21:08:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-10 21:08:29,421 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-10 21:08:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-10 21:08:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-10 21:08:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 21:08:29,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 21:08:29,423 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-10 21:08:31,297 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 21:08:31,298 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-06-10 21:08:31,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 09:08:31 BoogieIcfgContainer [2021-06-10 21:08:31,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 21:08:31,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 21:08:31,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 21:08:31,305 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 21:08:31,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 09:08:28" (1/3) ... [2021-06-10 21:08:31,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f3e6da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 09:08:31, skipping insertion in model container [2021-06-10 21:08:31,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:08:29" (2/3) ... [2021-06-10 21:08:31,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f3e6da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 09:08:31, skipping insertion in model container [2021-06-10 21:08:31,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 09:08:31" (3/3) ... [2021-06-10 21:08:31,308 INFO L111 eAbstractionObserver]: Analyzing ICFG safe004_power.opt.i [2021-06-10 21:08:31,314 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 21:08:31,318 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-06-10 21:08:31,319 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 21:08:31,353 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,353 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,353 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,353 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,354 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,354 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,355 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,355 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,355 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,355 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,355 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,355 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,355 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,355 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,356 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,356 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,356 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,356 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,356 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,357 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,358 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,358 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,358 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,359 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,359 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,359 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,359 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,359 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,359 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,360 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,360 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,360 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,360 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,360 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,361 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,361 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,361 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,362 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,362 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,362 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,362 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,362 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,362 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,362 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,362 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,363 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,363 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,363 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,363 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,363 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,363 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,363 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,364 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,364 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,364 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,365 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,365 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,365 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,365 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,365 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,365 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,365 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,365 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,366 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,366 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,366 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,366 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,366 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,366 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,366 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,367 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,367 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,367 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,368 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,368 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,368 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,369 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,369 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,370 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,370 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,372 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,372 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,372 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,372 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,372 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,372 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,373 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,373 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,373 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,373 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,373 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,373 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,376 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,377 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,377 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,379 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,379 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,380 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,380 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,384 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,385 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,385 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,386 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,386 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,386 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,386 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,386 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,387 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,387 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,387 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,387 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,387 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:08:31,388 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-10 21:08:31,403 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-06-10 21:08:31,435 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 21:08:31,435 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 21:08:31,435 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 21:08:31,435 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 21:08:31,435 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 21:08:31,435 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 21:08:31,435 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 21:08:31,435 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 21:08:31,447 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 97 transitions, 209 flow [2021-06-10 21:08:31,489 INFO L129 PetriNetUnfolder]: 2/94 cut-off events. [2021-06-10 21:08:31,489 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:08:31,497 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2021-06-10 21:08:31,498 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 97 transitions, 209 flow [2021-06-10 21:08:31,502 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 94 transitions, 197 flow [2021-06-10 21:08:31,503 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-10 21:08:31,513 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 94 transitions, 197 flow [2021-06-10 21:08:31,516 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 94 transitions, 197 flow [2021-06-10 21:08:31,520 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 94 transitions, 197 flow [2021-06-10 21:08:31,550 INFO L129 PetriNetUnfolder]: 2/94 cut-off events. [2021-06-10 21:08:31,550 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:08:31,551 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2021-06-10 21:08:31,555 INFO L151 LiptonReduction]: Number of co-enabled transitions 1686 [2021-06-10 21:08:31,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:31,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:31,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:31,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:08:31,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:08:31,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:31,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:31,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:31,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:31,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:31,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:31,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:31,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:31,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:31,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:31,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:31,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:31,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:32,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:32,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:32,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:32,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:32,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:32,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:32,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:32,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:32,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:32,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:32,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:32,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:32,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:32,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:32,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:32,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:32,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:32,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:32,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:08:32,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:08:32,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:32,514 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-06-10 21:08:32,515 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 21:08:32,539 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:32,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:32,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:32,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:32,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:32,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:08:32,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:08:32,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:32,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:32,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:32,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:33,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:33,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:33,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:33,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:08:33,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:08:33,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:33,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:33,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:33,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:33,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:33,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:33,209 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-06-10 21:08:33,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:33,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:33,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:33,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:33,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:33,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:33,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:33,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:33,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:33,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:33,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:33,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:33,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:33,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:33,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:33,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:33,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:33,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:33,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:33,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:33,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:33,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:33,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:33,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:33,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:33,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:33,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:33,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:33,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:34,164 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-06-10 21:08:34,531 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2021-06-10 21:08:34,647 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-06-10 21:08:34,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:34,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:34,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:34,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-10 21:08:34,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:34,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:34,689 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 2, 1] term [2021-06-10 21:08:34,689 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 21:08:34,694 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:34,701 INFO L147 QuantifierPusher]: treesize reduction 37, result has 63.0 percent of original size 63 [2021-06-10 21:08:34,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:34,705 INFO L142 QuantifierPusher]: treesize reduction 37, result has 76.9 percent of original size [2021-06-10 21:08:34,706 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 4, 2, 1] term [2021-06-10 21:08:34,706 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 21:08:34,708 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:34,713 INFO L147 QuantifierPusher]: treesize reduction 89, result has 36.0 percent of original size 50 [2021-06-10 21:08:34,715 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 3, 2, 4, 2, 1] term [2021-06-10 21:08:34,715 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 21:08:34,719 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:34,727 INFO L147 QuantifierPusher]: treesize reduction 154, result has 42.1 percent of original size 112 [2021-06-10 21:08:34,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:34,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:34,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:34,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:34,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:34,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:08:34,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:08:35,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:35,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:35,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:35,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:08:35,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:08:35,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:35,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:35,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,314 INFO L147 QuantifierPusher]: treesize reduction 80, result has 25.2 percent of original size 27 [2021-06-10 21:08:35,360 INFO L142 QuantifierPusher]: treesize reduction 84, result has 91.2 percent of original size [2021-06-10 21:08:35,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:35,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:35,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:35,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,374 INFO L147 QuantifierPusher]: treesize reduction 29, result has 3.3 percent of original size 1 [2021-06-10 21:08:35,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:35,375 INFO L142 QuantifierPusher]: treesize reduction 31, result has 75.0 percent of original size [2021-06-10 21:08:35,378 INFO L147 QuantifierPusher]: treesize reduction 6, result has 90.2 percent of original size 55 [2021-06-10 21:08:35,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:35,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-06-10 21:08:35,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:35,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-06-10 21:08:35,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:35,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,402 INFO L147 QuantifierPusher]: treesize reduction 13, result has 82.4 percent of original size 61 [2021-06-10 21:08:35,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:35,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-06-10 21:08:35,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:35,409 INFO L142 QuantifierPusher]: treesize reduction 13, result has 92.7 percent of original size [2021-06-10 21:08:35,410 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 5, 2, 2, 4, 3, 2, 1] term [2021-06-10 21:08:35,410 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 21:08:35,412 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,412 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 5, 4, 3, 2, 1] term [2021-06-10 21:08:35,412 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 21:08:35,414 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,415 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 5, 2, 2, 1] term [2021-06-10 21:08:35,415 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 21:08:35,416 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,419 INFO L147 QuantifierPusher]: treesize reduction 178, result has 42.4 percent of original size 131 [2021-06-10 21:08:35,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:35,423 INFO L142 QuantifierPusher]: treesize reduction 178, result has 57.0 percent of original size [2021-06-10 21:08:35,423 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 4, 4, 2, 2, 1] term [2021-06-10 21:08:35,424 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 21:08:35,425 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,426 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 3, 3, 4, 2, 2, 1] term [2021-06-10 21:08:35,426 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 21:08:35,432 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,433 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 3, 4, 2, 2, 1] term [2021-06-10 21:08:35,434 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 21:08:35,440 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,451 INFO L147 QuantifierPusher]: treesize reduction 439, result has 22.0 percent of original size 124 [2021-06-10 21:08:35,452 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 4, 3, 3, 4, 3, 4, 3, 4, 2, 2, 1] term [2021-06-10 21:08:35,452 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 21:08:35,455 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,457 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 3, 4, 3, 3, 4, 3, 4, 3, 4, 2, 2, 1] term [2021-06-10 21:08:35,457 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 21:08:35,459 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,461 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 4, 3, 3, 4, 3, 4, 3, 4, 2, 2, 1] term [2021-06-10 21:08:35,461 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 21:08:35,463 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,469 INFO L147 QuantifierPusher]: treesize reduction 1755, result has 8.4 percent of original size 160 [2021-06-10 21:08:35,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:35,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:35,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:35,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:35,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:35,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-10 21:08:35,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:08:35,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:35,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:35,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-10 21:08:35,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-10 21:08:35,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:35,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:35,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-10 21:08:35,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 21:08:36,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:36,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:36,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:36,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:08:36,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:08:36,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:36,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:36,616 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2021-06-10 21:08:36,741 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-06-10 21:08:37,025 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2021-06-10 21:08:37,152 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-06-10 21:08:37,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:37,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:08:37,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:37,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:08:37,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:08:37,178 INFO L163 LiptonReduction]: Checked pairs total: 4853 [2021-06-10 21:08:37,178 INFO L165 LiptonReduction]: Total number of compositions: 86 [2021-06-10 21:08:37,181 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5679 [2021-06-10 21:08:37,187 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-06-10 21:08:37,187 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:08:37,187 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:08:37,188 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-06-10 21:08:37,188 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:08:37,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:08:37,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1021376519, now seen corresponding path program 1 times [2021-06-10 21:08:37,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:08:37,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262805086] [2021-06-10 21:08:37,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:08:37,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:08:37,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:37,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 21:08:37,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:08:37,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262805086] [2021-06-10 21:08:37,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:08:37,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-10 21:08:37,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150821198] [2021-06-10 21:08:37,403 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 21:08:37,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:08:37,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 21:08:37,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 21:08:37,415 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 183 [2021-06-10 21:08:37,421 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:37,421 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:08:37,421 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 183 [2021-06-10 21:08:37,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:08:37,488 INFO L129 PetriNetUnfolder]: 49/134 cut-off events. [2021-06-10 21:08:37,488 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:08:37,489 INFO L84 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 134 events. 49/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 592 event pairs, 27 based on Foata normal form. 23/139 useless extension candidates. Maximal degree in co-relation 220. Up to 65 conditions per place. [2021-06-10 21:08:37,490 INFO L132 encePairwiseOnDemand]: 178/183 looper letters, 9 selfloop transitions, 2 changer transitions 0/29 dead transitions. [2021-06-10 21:08:37,490 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 29 transitions, 89 flow [2021-06-10 21:08:37,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 21:08:37,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 21:08:37,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2021-06-10 21:08:37,502 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.848816029143898 [2021-06-10 21:08:37,503 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 466 transitions. [2021-06-10 21:08:37,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 466 transitions. [2021-06-10 21:08:37,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:08:37,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 466 transitions. [2021-06-10 21:08:37,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:37,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:37,517 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:37,518 INFO L185 Difference]: Start difference. First operand has 37 places, 28 transitions, 65 flow. Second operand 3 states and 466 transitions. [2021-06-10 21:08:37,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 29 transitions, 89 flow [2021-06-10 21:08:37,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 29 transitions, 86 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-10 21:08:37,522 INFO L241 Difference]: Finished difference. Result has 34 places, 25 transitions, 60 flow [2021-06-10 21:08:37,523 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=34, PETRI_TRANSITIONS=25} [2021-06-10 21:08:37,524 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, -3 predicate places. [2021-06-10 21:08:37,524 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 25 transitions, 60 flow [2021-06-10 21:08:37,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:37,525 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:08:37,525 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:08:37,525 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-10 21:08:37,525 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:08:37,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:08:37,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1616601891, now seen corresponding path program 1 times [2021-06-10 21:08:37,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:08:37,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659540651] [2021-06-10 21:08:37,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:08:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:08:37,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:37,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 21:08:37,673 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 21:08:37,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 21:08:37,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:08:37,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659540651] [2021-06-10 21:08:37,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:08:37,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 21:08:37,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128778449] [2021-06-10 21:08:37,690 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 21:08:37,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:08:37,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 21:08:37,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 21:08:37,692 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 183 [2021-06-10 21:08:37,693 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 60 flow. Second operand has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:37,693 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:08:37,693 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 183 [2021-06-10 21:08:37,693 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:08:37,733 INFO L129 PetriNetUnfolder]: 1/34 cut-off events. [2021-06-10 21:08:37,733 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:08:37,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 34 events. 1/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 66 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 46. Up to 5 conditions per place. [2021-06-10 21:08:37,734 INFO L132 encePairwiseOnDemand]: 179/183 looper letters, 2 selfloop transitions, 2 changer transitions 7/29 dead transitions. [2021-06-10 21:08:37,734 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 29 transitions, 86 flow [2021-06-10 21:08:37,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 21:08:37,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 21:08:37,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 761 transitions. [2021-06-10 21:08:37,737 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8316939890710382 [2021-06-10 21:08:37,738 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 761 transitions. [2021-06-10 21:08:37,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 761 transitions. [2021-06-10 21:08:37,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:08:37,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 761 transitions. [2021-06-10 21:08:37,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 152.2) internal successors, (761), 5 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:37,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:37,743 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:37,743 INFO L185 Difference]: Start difference. First operand has 34 places, 25 transitions, 60 flow. Second operand 5 states and 761 transitions. [2021-06-10 21:08:37,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 29 transitions, 86 flow [2021-06-10 21:08:37,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 29 transitions, 82 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-10 21:08:37,745 INFO L241 Difference]: Finished difference. Result has 39 places, 22 transitions, 62 flow [2021-06-10 21:08:37,745 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=62, PETRI_PLACES=39, PETRI_TRANSITIONS=22} [2021-06-10 21:08:37,745 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, 2 predicate places. [2021-06-10 21:08:37,745 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 22 transitions, 62 flow [2021-06-10 21:08:37,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:37,746 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:08:37,746 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:08:37,746 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-10 21:08:37,746 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:08:37,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:08:37,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1971085766, now seen corresponding path program 1 times [2021-06-10 21:08:37,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:08:37,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792505775] [2021-06-10 21:08:37,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:08:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:08:37,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:37,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 21:08:37,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:37,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 21:08:37,867 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 21:08:37,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 21:08:37,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:08:37,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792505775] [2021-06-10 21:08:37,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:08:37,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 21:08:37,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589181690] [2021-06-10 21:08:37,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-10 21:08:37,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:08:37,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-10 21:08:37,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-10 21:08:37,888 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 183 [2021-06-10 21:08:37,889 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 22 transitions, 62 flow. Second operand has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:37,890 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:08:37,890 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 183 [2021-06-10 21:08:37,890 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:08:37,971 INFO L129 PetriNetUnfolder]: 13/99 cut-off events. [2021-06-10 21:08:37,971 INFO L130 PetriNetUnfolder]: For 19/26 co-relation queries the response was YES. [2021-06-10 21:08:37,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 99 events. 13/99 cut-off events. For 19/26 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 468 event pairs, 4 based on Foata normal form. 6/103 useless extension candidates. Maximal degree in co-relation 175. Up to 17 conditions per place. [2021-06-10 21:08:37,972 INFO L132 encePairwiseOnDemand]: 177/183 looper letters, 7 selfloop transitions, 4 changer transitions 9/35 dead transitions. [2021-06-10 21:08:37,972 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 35 transitions, 147 flow [2021-06-10 21:08:37,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-10 21:08:37,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-10 21:08:37,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 974 transitions. [2021-06-10 21:08:37,979 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.760343481654957 [2021-06-10 21:08:37,979 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 974 transitions. [2021-06-10 21:08:37,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 974 transitions. [2021-06-10 21:08:37,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:08:37,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 974 transitions. [2021-06-10 21:08:37,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 139.14285714285714) internal successors, (974), 7 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:37,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:37,986 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:37,986 INFO L185 Difference]: Start difference. First operand has 39 places, 22 transitions, 62 flow. Second operand 7 states and 974 transitions. [2021-06-10 21:08:37,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 35 transitions, 147 flow [2021-06-10 21:08:37,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 35 transitions, 129 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-06-10 21:08:37,988 INFO L241 Difference]: Finished difference. Result has 41 places, 23 transitions, 85 flow [2021-06-10 21:08:37,988 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=85, PETRI_PLACES=41, PETRI_TRANSITIONS=23} [2021-06-10 21:08:37,989 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, 4 predicate places. [2021-06-10 21:08:37,989 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 23 transitions, 85 flow [2021-06-10 21:08:37,989 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:37,989 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:08:37,989 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:08:37,989 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-10 21:08:37,990 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:08:37,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:08:37,990 INFO L82 PathProgramCache]: Analyzing trace with hash -185716656, now seen corresponding path program 1 times [2021-06-10 21:08:37,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:08:37,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562592873] [2021-06-10 21:08:37,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:08:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:08:38,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:38,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:38,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:38,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:08:38,134 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 21:08:38,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 21:08:38,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:08:38,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562592873] [2021-06-10 21:08:38,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:08:38,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 21:08:38,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976587725] [2021-06-10 21:08:38,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 21:08:38,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:08:38,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 21:08:38,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 21:08:38,151 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 183 [2021-06-10 21:08:38,151 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 23 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 142.5) internal successors, (570), 4 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:38,151 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:08:38,151 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 183 [2021-06-10 21:08:38,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:08:38,190 INFO L129 PetriNetUnfolder]: 1/44 cut-off events. [2021-06-10 21:08:38,190 INFO L130 PetriNetUnfolder]: For 34/36 co-relation queries the response was YES. [2021-06-10 21:08:38,191 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 44 events. 1/44 cut-off events. For 34/36 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 116 event pairs, 0 based on Foata normal form. 3/46 useless extension candidates. Maximal degree in co-relation 95. Up to 8 conditions per place. [2021-06-10 21:08:38,191 INFO L132 encePairwiseOnDemand]: 179/183 looper letters, 6 selfloop transitions, 2 changer transitions 3/26 dead transitions. [2021-06-10 21:08:38,191 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 26 transitions, 123 flow [2021-06-10 21:08:38,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 21:08:38,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 21:08:38,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 718 transitions. [2021-06-10 21:08:38,193 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7846994535519126 [2021-06-10 21:08:38,193 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 718 transitions. [2021-06-10 21:08:38,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 718 transitions. [2021-06-10 21:08:38,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:08:38,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 718 transitions. [2021-06-10 21:08:38,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 143.6) internal successors, (718), 5 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:38,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:38,198 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:38,198 INFO L185 Difference]: Start difference. First operand has 41 places, 23 transitions, 85 flow. Second operand 5 states and 718 transitions. [2021-06-10 21:08:38,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 26 transitions, 123 flow [2021-06-10 21:08:38,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 26 transitions, 105 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-06-10 21:08:38,200 INFO L241 Difference]: Finished difference. Result has 42 places, 22 transitions, 77 flow [2021-06-10 21:08:38,200 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=77, PETRI_PLACES=42, PETRI_TRANSITIONS=22} [2021-06-10 21:08:38,200 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, 5 predicate places. [2021-06-10 21:08:38,200 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 22 transitions, 77 flow [2021-06-10 21:08:38,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 142.5) internal successors, (570), 4 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:38,201 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:08:38,201 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:08:38,201 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-10 21:08:38,201 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:08:38,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:08:38,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1462131739, now seen corresponding path program 1 times [2021-06-10 21:08:38,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:08:38,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027191601] [2021-06-10 21:08:38,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:08:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:08:38,384 INFO L142 QuantifierPusher]: treesize reduction 2, result has 97.2 percent of original size [2021-06-10 21:08:38,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-10 21:08:38,425 INFO L142 QuantifierPusher]: treesize reduction 32, result has 25.6 percent of original size [2021-06-10 21:08:38,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-10 21:08:38,436 INFO L142 QuantifierPusher]: treesize reduction 2, result has 97.0 percent of original size [2021-06-10 21:08:38,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-06-10 21:08:38,473 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 21:08:38,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 21:08:38,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:08:38,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027191601] [2021-06-10 21:08:38,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:08:38,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 21:08:38,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847676505] [2021-06-10 21:08:38,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 21:08:38,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:08:38,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 21:08:38,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-10 21:08:38,501 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 183 [2021-06-10 21:08:38,502 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 22 transitions, 77 flow. Second operand has 6 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:38,503 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:08:38,503 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 183 [2021-06-10 21:08:38,503 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:08:38,683 INFO L129 PetriNetUnfolder]: 68/169 cut-off events. [2021-06-10 21:08:38,683 INFO L130 PetriNetUnfolder]: For 89/91 co-relation queries the response was YES. [2021-06-10 21:08:38,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 169 events. 68/169 cut-off events. For 89/91 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 690 event pairs, 16 based on Foata normal form. 13/180 useless extension candidates. Maximal degree in co-relation 349. Up to 97 conditions per place. [2021-06-10 21:08:38,685 INFO L132 encePairwiseOnDemand]: 176/183 looper letters, 10 selfloop transitions, 5 changer transitions 9/37 dead transitions. [2021-06-10 21:08:38,685 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 37 transitions, 159 flow [2021-06-10 21:08:38,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-10 21:08:38,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-10 21:08:38,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 794 transitions. [2021-06-10 21:08:38,688 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7231329690346083 [2021-06-10 21:08:38,688 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 794 transitions. [2021-06-10 21:08:38,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 794 transitions. [2021-06-10 21:08:38,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:08:38,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 794 transitions. [2021-06-10 21:08:38,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 132.33333333333334) internal successors, (794), 6 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:38,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 183.0) internal successors, (1281), 7 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:38,693 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 183.0) internal successors, (1281), 7 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:38,693 INFO L185 Difference]: Start difference. First operand has 42 places, 22 transitions, 77 flow. Second operand 6 states and 794 transitions. [2021-06-10 21:08:38,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 37 transitions, 159 flow [2021-06-10 21:08:38,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 37 transitions, 146 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-06-10 21:08:38,695 INFO L241 Difference]: Finished difference. Result has 42 places, 25 transitions, 102 flow [2021-06-10 21:08:38,695 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=102, PETRI_PLACES=42, PETRI_TRANSITIONS=25} [2021-06-10 21:08:38,696 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, 5 predicate places. [2021-06-10 21:08:38,696 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 25 transitions, 102 flow [2021-06-10 21:08:38,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:38,696 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:08:38,696 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:08:38,696 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-10 21:08:38,696 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:08:38,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:08:38,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1198959522, now seen corresponding path program 1 times [2021-06-10 21:08:38,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:08:38,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376620669] [2021-06-10 21:08:38,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:08:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:08:38,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:38,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 21:08:38,772 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-10 21:08:38,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:08:38,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:38,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:38,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:08:38,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376620669] [2021-06-10 21:08:38,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:08:38,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 21:08:38,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722792896] [2021-06-10 21:08:38,782 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 21:08:38,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:08:38,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 21:08:38,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 21:08:38,784 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 183 [2021-06-10 21:08:38,785 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 25 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 143.75) internal successors, (575), 4 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:38,785 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:08:38,785 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 183 [2021-06-10 21:08:38,785 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:08:38,840 INFO L129 PetriNetUnfolder]: 76/182 cut-off events. [2021-06-10 21:08:38,841 INFO L130 PetriNetUnfolder]: For 90/90 co-relation queries the response was YES. [2021-06-10 21:08:38,842 INFO L84 FinitePrefix]: Finished finitePrefix Result has 460 conditions, 182 events. 76/182 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 835 event pairs, 37 based on Foata normal form. 14/180 useless extension candidates. Maximal degree in co-relation 446. Up to 81 conditions per place. [2021-06-10 21:08:38,843 INFO L132 encePairwiseOnDemand]: 177/183 looper letters, 8 selfloop transitions, 8 changer transitions 0/35 dead transitions. [2021-06-10 21:08:38,843 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 35 transitions, 154 flow [2021-06-10 21:08:38,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 21:08:38,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 21:08:38,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 733 transitions. [2021-06-10 21:08:38,845 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8010928961748633 [2021-06-10 21:08:38,845 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 733 transitions. [2021-06-10 21:08:38,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 733 transitions. [2021-06-10 21:08:38,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:08:38,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 733 transitions. [2021-06-10 21:08:38,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 146.6) internal successors, (733), 5 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:38,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:38,849 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:38,850 INFO L185 Difference]: Start difference. First operand has 42 places, 25 transitions, 102 flow. Second operand 5 states and 733 transitions. [2021-06-10 21:08:38,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 35 transitions, 154 flow [2021-06-10 21:08:38,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 35 transitions, 146 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-06-10 21:08:38,852 INFO L241 Difference]: Finished difference. Result has 44 places, 32 transitions, 154 flow [2021-06-10 21:08:38,852 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=154, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2021-06-10 21:08:38,852 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, 7 predicate places. [2021-06-10 21:08:38,852 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 154 flow [2021-06-10 21:08:38,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 143.75) internal successors, (575), 4 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:38,853 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:08:38,853 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:08:38,853 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-10 21:08:38,853 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:08:38,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:08:38,853 INFO L82 PathProgramCache]: Analyzing trace with hash -867436341, now seen corresponding path program 1 times [2021-06-10 21:08:38,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:08:38,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835282390] [2021-06-10 21:08:38,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:08:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:08:38,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:38,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:08:38,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:38,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:08:38,921 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-10 21:08:38,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:08:38,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:38,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:38,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:08:38,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835282390] [2021-06-10 21:08:38,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:08:38,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 21:08:38,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280801896] [2021-06-10 21:08:38,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-10 21:08:38,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:08:38,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-10 21:08:38,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-10 21:08:38,933 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 183 [2021-06-10 21:08:38,934 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 154 flow. Second operand has 5 states, 5 states have (on average 143.8) internal successors, (719), 5 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:38,934 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:08:38,934 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 183 [2021-06-10 21:08:38,934 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:08:38,991 INFO L129 PetriNetUnfolder]: 38/122 cut-off events. [2021-06-10 21:08:38,991 INFO L130 PetriNetUnfolder]: For 176/347 co-relation queries the response was YES. [2021-06-10 21:08:38,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 431 conditions, 122 events. 38/122 cut-off events. For 176/347 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 484 event pairs, 7 based on Foata normal form. 59/172 useless extension candidates. Maximal degree in co-relation 415. Up to 68 conditions per place. [2021-06-10 21:08:38,993 INFO L132 encePairwiseOnDemand]: 177/183 looper letters, 5 selfloop transitions, 15 changer transitions 3/42 dead transitions. [2021-06-10 21:08:38,993 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 42 transitions, 258 flow [2021-06-10 21:08:38,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-10 21:08:38,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-10 21:08:38,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1026 transitions. [2021-06-10 21:08:38,996 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8009367681498829 [2021-06-10 21:08:38,996 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1026 transitions. [2021-06-10 21:08:38,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1026 transitions. [2021-06-10 21:08:38,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:08:38,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1026 transitions. [2021-06-10 21:08:38,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 146.57142857142858) internal successors, (1026), 7 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:39,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:39,002 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:39,002 INFO L185 Difference]: Start difference. First operand has 44 places, 32 transitions, 154 flow. Second operand 7 states and 1026 transitions. [2021-06-10 21:08:39,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 42 transitions, 258 flow [2021-06-10 21:08:39,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 42 transitions, 254 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-10 21:08:39,004 INFO L241 Difference]: Finished difference. Result has 52 places, 39 transitions, 249 flow [2021-06-10 21:08:39,004 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=249, PETRI_PLACES=52, PETRI_TRANSITIONS=39} [2021-06-10 21:08:39,004 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, 15 predicate places. [2021-06-10 21:08:39,005 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 39 transitions, 249 flow [2021-06-10 21:08:39,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 143.8) internal successors, (719), 5 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:39,005 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:08:39,005 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:08:39,005 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-10 21:08:39,005 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:08:39,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:08:39,006 INFO L82 PathProgramCache]: Analyzing trace with hash 77319773, now seen corresponding path program 1 times [2021-06-10 21:08:39,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:08:39,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179063725] [2021-06-10 21:08:39,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:08:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:08:39,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:39,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:08:39,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:39,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:08:39,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:39,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:08:39,080 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-10 21:08:39,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:08:39,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:08:39,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:08:39,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:08:39,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179063725] [2021-06-10 21:08:39,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:08:39,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-10 21:08:39,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307714225] [2021-06-10 21:08:39,090 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 21:08:39,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:08:39,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 21:08:39,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-10 21:08:39,092 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 183 [2021-06-10 21:08:39,092 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 39 transitions, 249 flow. Second operand has 6 states, 6 states have (on average 143.83333333333334) internal successors, (863), 6 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:39,093 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:08:39,093 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 183 [2021-06-10 21:08:39,093 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:08:39,163 INFO L129 PetriNetUnfolder]: 24/91 cut-off events. [2021-06-10 21:08:39,163 INFO L130 PetriNetUnfolder]: For 471/869 co-relation queries the response was YES. [2021-06-10 21:08:39,164 INFO L84 FinitePrefix]: Finished finitePrefix Result has 423 conditions, 91 events. 24/91 cut-off events. For 471/869 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 332 event pairs, 1 based on Foata normal form. 68/151 useless extension candidates. Maximal degree in co-relation 403. Up to 58 conditions per place. [2021-06-10 21:08:39,164 INFO L132 encePairwiseOnDemand]: 177/183 looper letters, 2 selfloop transitions, 19 changer transitions 3/43 dead transitions. [2021-06-10 21:08:39,164 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 43 transitions, 327 flow [2021-06-10 21:08:39,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-10 21:08:39,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-10 21:08:39,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1313 transitions. [2021-06-10 21:08:39,168 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7972070431086824 [2021-06-10 21:08:39,168 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1313 transitions. [2021-06-10 21:08:39,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1313 transitions. [2021-06-10 21:08:39,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:08:39,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1313 transitions. [2021-06-10 21:08:39,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 145.88888888888889) internal successors, (1313), 9 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:39,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:39,174 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:39,174 INFO L185 Difference]: Start difference. First operand has 52 places, 39 transitions, 249 flow. Second operand 9 states and 1313 transitions. [2021-06-10 21:08:39,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 43 transitions, 327 flow [2021-06-10 21:08:39,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 43 transitions, 280 flow, removed 17 selfloop flow, removed 4 redundant places. [2021-06-10 21:08:39,177 INFO L241 Difference]: Finished difference. Result has 59 places, 40 transitions, 263 flow [2021-06-10 21:08:39,177 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=263, PETRI_PLACES=59, PETRI_TRANSITIONS=40} [2021-06-10 21:08:39,177 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, 22 predicate places. [2021-06-10 21:08:39,177 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 40 transitions, 263 flow [2021-06-10 21:08:39,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 143.83333333333334) internal successors, (863), 6 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:08:39,178 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:08:39,178 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:08:39,178 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-10 21:08:39,178 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:08:39,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:08:39,178 INFO L82 PathProgramCache]: Analyzing trace with hash 746603663, now seen corresponding path program 1 times [2021-06-10 21:08:39,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:08:39,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306513444] [2021-06-10 21:08:39,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:08:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 21:08:39,229 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 21:08:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 21:08:39,276 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 21:08:39,302 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-10 21:08:39,303 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-06-10 21:08:39,303 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-10 21:08:39,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 09:08:39 BasicIcfg [2021-06-10 21:08:39,379 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 21:08:39,380 INFO L168 Benchmark]: Toolchain (without parser) took 10641.16 ms. Allocated memory was 367.0 MB in the beginning and 604.0 MB in the end (delta: 237.0 MB). Free memory was 329.1 MB in the beginning and 336.1 MB in the end (delta: -7.0 MB). Peak memory consumption was 230.6 MB. Max. memory is 16.0 GB. [2021-06-10 21:08:39,380 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 367.0 MB. Free memory is still 347.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 21:08:39,380 INFO L168 Benchmark]: CACSL2BoogieTranslator took 520.39 ms. Allocated memory is still 367.0 MB. Free memory was 329.0 MB in the beginning and 326.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. [2021-06-10 21:08:39,380 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.08 ms. Allocated memory is still 367.0 MB. Free memory was 326.3 MB in the beginning and 323.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-06-10 21:08:39,380 INFO L168 Benchmark]: Boogie Preprocessor took 28.16 ms. Allocated memory is still 367.0 MB. Free memory was 323.2 MB in the beginning and 321.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 21:08:39,381 INFO L168 Benchmark]: RCFGBuilder took 1943.07 ms. Allocated memory is still 367.0 MB. Free memory was 321.1 MB in the beginning and 252.7 MB in the end (delta: 68.4 MB). Peak memory consumption was 141.8 MB. Max. memory is 16.0 GB. [2021-06-10 21:08:39,381 INFO L168 Benchmark]: TraceAbstraction took 8076.51 ms. Allocated memory was 367.0 MB in the beginning and 604.0 MB in the end (delta: 237.0 MB). Free memory was 251.6 MB in the beginning and 336.1 MB in the end (delta: -84.5 MB). Peak memory consumption was 152.5 MB. Max. memory is 16.0 GB. [2021-06-10 21:08:39,382 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 367.0 MB. Free memory is still 347.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 520.39 ms. Allocated memory is still 367.0 MB. Free memory was 329.0 MB in the beginning and 326.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 66.08 ms. Allocated memory is still 367.0 MB. Free memory was 326.3 MB in the beginning and 323.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.16 ms. Allocated memory is still 367.0 MB. Free memory was 323.2 MB in the beginning and 321.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1943.07 ms. Allocated memory is still 367.0 MB. Free memory was 321.1 MB in the beginning and 252.7 MB in the end (delta: 68.4 MB). Peak memory consumption was 141.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 8076.51 ms. Allocated memory was 367.0 MB in the beginning and 604.0 MB in the end (delta: 237.0 MB). Free memory was 251.6 MB in the beginning and 336.1 MB in the end (delta: -84.5 MB). Peak memory consumption was 152.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5661.9ms, 102 PlacesBefore, 37 PlacesAfterwards, 94 TransitionsBefore, 28 TransitionsAfterwards, 1686 CoEnabledTransitionPairs, 7 FixpointIterations, 35 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 86 TotalNumberOfCompositions, 4853 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1759, positive: 1604, positive conditional: 0, positive unconditional: 1604, negative: 155, negative conditional: 0, negative unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1054, positive: 1021, positive conditional: 0, positive unconditional: 1021, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1054, positive: 1021, positive conditional: 0, positive unconditional: 1021, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1054, positive: 1003, positive conditional: 0, positive unconditional: 1003, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 51, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 644, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 611, negative conditional: 0, negative unconditional: 611, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1759, positive: 583, positive conditional: 0, positive unconditional: 583, negative: 122, negative conditional: 0, negative unconditional: 122, unknown: 1054, unknown conditional: 0, unknown unconditional: 1054] , Statistics on independence cache: Total cache size (in pairs): 1882, Positive cache size: 1849, Positive conditional cache size: 0, Positive unconditional cache size: 1849, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L713] 0 int __unbuffered_p2_EBX = 0; [L714] 0 _Bool main$tmp_guard0; [L715] 0 _Bool main$tmp_guard1; [L717] 0 int x = 0; [L718] 0 _Bool x$flush_delayed; [L719] 0 int x$mem_tmp; [L720] 0 _Bool x$r_buff0_thd0; [L721] 0 _Bool x$r_buff0_thd1; [L722] 0 _Bool x$r_buff0_thd2; [L723] 0 _Bool x$r_buff0_thd3; [L724] 0 _Bool x$r_buff1_thd0; [L725] 0 _Bool x$r_buff1_thd1; [L726] 0 _Bool x$r_buff1_thd2; [L727] 0 _Bool x$r_buff1_thd3; [L728] 0 _Bool x$read_delayed; [L729] 0 int *x$read_delayed_var; [L730] 0 int x$w_buff0; [L731] 0 _Bool x$w_buff0_used; [L732] 0 int x$w_buff1; [L733] 0 _Bool x$w_buff1_used; [L735] 0 int y = 0; [L736] 0 _Bool weak$$choice0; [L737] 0 _Bool weak$$choice2; [L818] 0 pthread_t t1876; [L819] FCALL, FORK 0 pthread_create(&t1876, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L820] 0 pthread_t t1877; [L821] FCALL, FORK 0 pthread_create(&t1877, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L822] 0 pthread_t t1878; [L823] FCALL, FORK 0 pthread_create(&t1878, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L761] 2 x$w_buff1 = x$w_buff0 [L762] 2 x$w_buff0 = 2 [L763] 2 x$w_buff1_used = x$w_buff0_used [L764] 2 x$w_buff0_used = (_Bool)1 [L18] COND FALSE 2 !(!expression) [L766] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L767] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L768] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L769] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L770] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L773] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L790] 3 __unbuffered_p2_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=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, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L793] 3 __unbuffered_p2_EBX = y VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, 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, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L741] 1 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, 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, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L744] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, 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, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L776] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L776] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L777] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L777] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L778] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L778] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L779] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L779] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L780] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L780] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L747] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L747] EXPR 1 x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x [L747] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L747] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L748] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L748] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L749] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L749] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L750] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L750] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L751] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L751] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L796] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L796] EXPR 3 x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x [L796] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L796] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L797] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L797] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L798] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L798] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L799] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L799] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L800] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 [L800] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 [L783] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L785] 2 return 0; [L803] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L805] 3 return 0; [L754] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L756] 1 return 0; [L825] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L829] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L829] EXPR 0 x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x [L829] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L829] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L830] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L830] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L831] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L831] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L832] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L832] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L833] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L833] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L836] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L837] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L838] 0 x$flush_delayed = weak$$choice2 [L839] 0 x$mem_tmp = x [L840] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L840] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L841] EXPR 0 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L841] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L842] EXPR 0 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L842] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L843] EXPR 0 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L843] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L844] EXPR 0 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L844] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L845] EXPR 0 weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L845] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L846] EXPR 0 weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L846] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L847] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 1) [L848] EXPR 0 x$flush_delayed ? x$mem_tmp : x [L848] 0 x = x$flush_delayed ? x$mem_tmp : x [L849] 0 x$flush_delayed = (_Bool)0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 96 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 7873.5ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 744.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5749.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 32 SDtfs, 37 SDslu, 27 SDs, 0 SdLazy, 180 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 226.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 321.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=263occurred in iteration=8, InterpolantAutomatonStates: 47, 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: 33.0ms SsaConstructionTime, 495.3ms SatisfiabilityAnalysisTime, 633.8ms InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 703 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...