/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 15:20:57,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 15:20:57,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 15:20:57,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 15:20:57,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 15:20:57,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 15:20:57,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 15:20:57,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 15:20:57,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 15:20:57,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 15:20:57,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 15:20:57,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 15:20:57,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 15:20:57,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 15:20:57,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 15:20:57,311 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 15:20:57,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 15:20:57,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 15:20:57,323 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 15:20:57,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 15:20:57,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 15:20:57,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 15:20:57,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 15:20:57,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 15:20:57,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 15:20:57,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 15:20:57,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 15:20:57,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 15:20:57,364 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 15:20:57,428 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 15:20:57,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 15:20:57,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 15:20:57,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 15:20:57,433 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 15:20:57,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 15:20:57,433 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 15:20:57,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 15:20:57,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 15:20:57,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 15:20:57,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 15:20:57,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 15:20:57,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 15:20:57,436 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 15:20:57,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 15:20:57,437 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 15:20:57,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 15:20:57,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 15:20:57,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 15:20:57,438 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 15:20:57,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 15:20:57,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 15:20:57,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 15:20:57,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 15:20:57,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 15:20:57,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 15:20:57,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 15:20:57,440 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 15:20:57,440 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 15:20:57,440 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 15:20:57,440 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 15:20:57,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 15:20:57,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 15:20:57,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 15:20:57,906 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 15:20:57,907 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 15:20:57,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker.i [2021-04-28 15:20:58,019 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30277201b/c9f5673ca4d1488b838769d95729bd94/FLAG859e909d6 [2021-04-28 15:20:58,762 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 15:20:58,764 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i [2021-04-28 15:20:58,784 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30277201b/c9f5673ca4d1488b838769d95729bd94/FLAG859e909d6 [2021-04-28 15:20:59,065 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30277201b/c9f5673ca4d1488b838769d95729bd94 [2021-04-28 15:20:59,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 15:20:59,114 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 15:20:59,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 15:20:59,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 15:20:59,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 15:20:59,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 03:20:59" (1/1) ... [2021-04-28 15:20:59,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21c4c7b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:20:59, skipping insertion in model container [2021-04-28 15:20:59,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 03:20:59" (1/1) ... [2021-04-28 15:20:59,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 15:20:59,210 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 15:20:59,421 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-04-28 15:20:59,575 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-atomic/dekker.i[31403,31416] [2021-04-28 15:20:59,583 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-atomic/dekker.i[32483,32496] [2021-04-28 15:20:59,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 15:20:59,600 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 15:20:59,618 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-04-28 15:20:59,645 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-atomic/dekker.i[31403,31416] [2021-04-28 15:20:59,652 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-atomic/dekker.i[32483,32496] [2021-04-28 15:20:59,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 15:20:59,793 INFO L208 MainTranslator]: Completed translation [2021-04-28 15:20:59,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:20:59 WrapperNode [2021-04-28 15:20:59,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 15:20:59,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 15:20:59,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 15:20:59,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 15:20:59,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:20:59" (1/1) ... [2021-04-28 15:20:59,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:20:59" (1/1) ... [2021-04-28 15:20:59,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 15:20:59,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 15:20:59,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 15:20:59,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 15:20:59,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:20:59" (1/1) ... [2021-04-28 15:20:59,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:20:59" (1/1) ... [2021-04-28 15:20:59,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:20:59" (1/1) ... [2021-04-28 15:20:59,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:20:59" (1/1) ... [2021-04-28 15:20:59,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:20:59" (1/1) ... [2021-04-28 15:20:59,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:20:59" (1/1) ... [2021-04-28 15:20:59,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:20:59" (1/1) ... [2021-04-28 15:20:59,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 15:20:59,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 15:20:59,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 15:20:59,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 15:20:59,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:20:59" (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 [2021-04-28 15:20:59,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-28 15:20:59,995 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-04-28 15:20:59,997 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-04-28 15:20:59,997 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-04-28 15:20:59,998 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-04-28 15:20:59,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 15:20:59,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 15:20:59,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 15:20:59,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 15:20:59,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 15:20:59,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 15:20:59,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 15:21:00,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 15:21:00,002 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 15:21:00,558 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 15:21:00,559 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 15:21:00,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 03:21:00 BoogieIcfgContainer [2021-04-28 15:21:00,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 15:21:00,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 15:21:00,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 15:21:00,566 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 15:21:00,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 03:20:59" (1/3) ... [2021-04-28 15:21:00,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7325010c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 03:21:00, skipping insertion in model container [2021-04-28 15:21:00,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:20:59" (2/3) ... [2021-04-28 15:21:00,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7325010c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 03:21:00, skipping insertion in model container [2021-04-28 15:21:00,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 03:21:00" (3/3) ... [2021-04-28 15:21:00,570 INFO L111 eAbstractionObserver]: Analyzing ICFG dekker.i [2021-04-28 15:21:00,576 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 15:21:00,581 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 15:21:00,582 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 15:21:00,613 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,613 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,614 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,614 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,614 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,614 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,615 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,615 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,615 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,615 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,616 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,616 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,616 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,617 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,617 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,617 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,618 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,618 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,618 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,618 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,619 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,619 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,619 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,620 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,620 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,620 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,620 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,621 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,621 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,621 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,621 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,622 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,622 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,622 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,624 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,624 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,624 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,624 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,624 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,625 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,625 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,625 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,625 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,626 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,626 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,626 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,626 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,627 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,627 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,627 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,628 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,628 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,628 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,629 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,629 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,629 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,629 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,630 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,630 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,630 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,630 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,630 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,631 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,631 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,631 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,632 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,632 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,634 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,634 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,635 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,635 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,635 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,635 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,640 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,640 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,641 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,641 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,641 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,641 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:21:00,648 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-04-28 15:21:00,671 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-04-28 15:21:00,697 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 15:21:00,698 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 15:21:00,698 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 15:21:00,698 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 15:21:00,698 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 15:21:00,698 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 15:21:00,698 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 15:21:00,699 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 15:21:00,721 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 96 transitions, 214 flow [2021-04-28 15:21:00,770 INFO L129 PetriNetUnfolder]: 14/96 cut-off events. [2021-04-28 15:21:00,770 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-28 15:21:00,777 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 96 events. 14/96 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 160 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 63. Up to 3 conditions per place. [2021-04-28 15:21:00,777 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 96 transitions, 214 flow [2021-04-28 15:21:00,783 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 84 transitions, 180 flow [2021-04-28 15:21:00,785 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 15:21:00,801 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 84 transitions, 180 flow [2021-04-28 15:21:00,805 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 84 transitions, 180 flow [2021-04-28 15:21:00,807 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 84 transitions, 180 flow [2021-04-28 15:21:00,844 INFO L129 PetriNetUnfolder]: 13/86 cut-off events. [2021-04-28 15:21:00,844 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-28 15:21:00,846 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 86 events. 13/86 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 154 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2021-04-28 15:21:00,850 INFO L146 LiptonReduction]: Number of co-enabled transitions 2028 [2021-04-28 15:21:05,357 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2021-04-28 15:21:05,619 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2021-04-28 15:21:06,050 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 15:21:06,273 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 15:21:07,426 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-04-28 15:21:07,711 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-04-28 15:21:08,169 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-04-28 15:21:08,457 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-04-28 15:21:08,782 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-04-28 15:21:08,889 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 15:21:09,123 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-04-28 15:21:09,226 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 15:21:09,430 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-04-28 15:21:09,717 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-04-28 15:21:10,110 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-28 15:21:10,212 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-28 15:21:12,008 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-28 15:21:12,120 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-28 15:21:12,239 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-28 15:21:12,346 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-28 15:21:12,458 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-28 15:21:12,563 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-28 15:21:12,681 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-28 15:21:12,892 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-28 15:21:13,001 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-28 15:21:13,109 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-28 15:21:13,229 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-28 15:21:13,777 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-28 15:21:13,882 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-28 15:21:13,993 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-28 15:21:14,099 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-28 15:21:14,347 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2021-04-28 15:21:14,459 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-28 15:21:14,698 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2021-04-28 15:21:14,809 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-28 15:21:14,923 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-28 15:21:15,036 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-28 15:21:15,151 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-28 15:21:15,266 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-28 15:21:15,545 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2021-04-28 15:21:15,660 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 15:21:15,929 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2021-04-28 15:21:16,054 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 15:21:16,115 INFO L158 LiptonReduction]: Checked pairs total: 11079 [2021-04-28 15:21:16,116 INFO L160 LiptonReduction]: Total number of compositions: 120 [2021-04-28 15:21:16,120 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15337 [2021-04-28 15:21:16,143 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2021-04-28 15:21:16,144 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 15:21:16,144 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 15:21:16,145 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-04-28 15:21:16,145 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 15:21:16,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 15:21:16,152 INFO L82 PathProgramCache]: Analyzing trace with hash 397032609, now seen corresponding path program 1 times [2021-04-28 15:21:16,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 15:21:16,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485872297] [2021-04-28 15:21:16,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 15:21:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 15:21:16,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:21:16,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 15:21:16,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:21:16,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 15:21:16,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 15:21:16,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485872297] [2021-04-28 15:21:16,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 15:21:16,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 15:21:16,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233422763] [2021-04-28 15:21:16,384 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 15:21:16,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 15:21:16,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 15:21:16,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 15:21:16,403 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 216 [2021-04-28 15:21:16,407 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 93 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 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) [2021-04-28 15:21:16,407 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 15:21:16,408 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 216 [2021-04-28 15:21:16,409 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 15:21:16,508 INFO L129 PetriNetUnfolder]: 20/220 cut-off events. [2021-04-28 15:21:16,508 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-04-28 15:21:16,509 INFO L84 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 220 events. 20/220 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1508 event pairs, 6 based on Foata normal form. 6/94 useless extension candidates. Maximal degree in co-relation 259. Up to 47 conditions per place. [2021-04-28 15:21:16,512 INFO L132 encePairwiseOnDemand]: 192/216 looper letters, 10 selfloop transitions, 8 changer transitions 27/95 dead transitions. [2021-04-28 15:21:16,512 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 95 transitions, 264 flow [2021-04-28 15:21:16,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 15:21:16,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 15:21:16,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 470 transitions. [2021-04-28 15:21:16,530 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7253086419753086 [2021-04-28 15:21:16,531 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 470 transitions. [2021-04-28 15:21:16,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 470 transitions. [2021-04-28 15:21:16,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 15:21:16,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 470 transitions. [2021-04-28 15:21:16,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 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) [2021-04-28 15:21:16,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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) [2021-04-28 15:21:16,551 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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) [2021-04-28 15:21:16,553 INFO L185 Difference]: Start difference. First operand has 92 places, 93 transitions, 198 flow. Second operand 3 states and 470 transitions. [2021-04-28 15:21:16,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 95 transitions, 264 flow [2021-04-28 15:21:16,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 95 transitions, 256 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 15:21:16,561 INFO L241 Difference]: Finished difference. Result has 89 places, 67 transitions, 184 flow [2021-04-28 15:21:16,563 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=184, PETRI_PLACES=89, PETRI_TRANSITIONS=67} [2021-04-28 15:21:16,564 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -3 predicate places. [2021-04-28 15:21:16,564 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 15:21:16,565 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 67 transitions, 184 flow [2021-04-28 15:21:16,565 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 67 transitions, 184 flow [2021-04-28 15:21:16,566 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 67 transitions, 184 flow [2021-04-28 15:21:16,581 INFO L129 PetriNetUnfolder]: 6/152 cut-off events. [2021-04-28 15:21:16,581 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-04-28 15:21:16,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 152 events. 6/152 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1046 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 185. Up to 25 conditions per place. [2021-04-28 15:21:16,584 INFO L146 LiptonReduction]: Number of co-enabled transitions 1882 [2021-04-28 15:21:16,624 INFO L158 LiptonReduction]: Checked pairs total: 1010 [2021-04-28 15:21:16,624 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 15:21:16,624 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 60 [2021-04-28 15:21:16,626 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 67 transitions, 184 flow [2021-04-28 15:21:16,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 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) [2021-04-28 15:21:16,627 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 15:21:16,627 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 15:21:16,627 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 15:21:16,628 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 15:21:16,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 15:21:16,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1338586529, now seen corresponding path program 1 times [2021-04-28 15:21:16,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 15:21:16,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759170472] [2021-04-28 15:21:16,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 15:21:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 15:21:16,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:21:16,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 15:21:16,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:21:16,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-28 15:21:16,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 15:21:16,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759170472] [2021-04-28 15:21:16,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 15:21:16,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 15:21:16,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455140500] [2021-04-28 15:21:16,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 15:21:16,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 15:21:16,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 15:21:16,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 15:21:16,702 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 216 [2021-04-28 15:21:16,703 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 67 transitions, 184 flow. Second operand has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 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) [2021-04-28 15:21:16,705 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 15:21:16,705 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 216 [2021-04-28 15:21:16,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 15:21:16,755 INFO L129 PetriNetUnfolder]: 6/150 cut-off events. [2021-04-28 15:21:16,755 INFO L130 PetriNetUnfolder]: For 16/36 co-relation queries the response was YES. [2021-04-28 15:21:16,757 INFO L84 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 150 events. 6/150 cut-off events. For 16/36 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1030 event pairs, 0 based on Foata normal form. 8/75 useless extension candidates. Maximal degree in co-relation 231. Up to 26 conditions per place. [2021-04-28 15:21:16,759 INFO L132 encePairwiseOnDemand]: 209/216 looper letters, 7 selfloop transitions, 7 changer transitions 3/67 dead transitions. [2021-04-28 15:21:16,759 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 67 transitions, 218 flow [2021-04-28 15:21:16,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 15:21:16,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 15:21:16,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 450 transitions. [2021-04-28 15:21:16,765 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6944444444444444 [2021-04-28 15:21:16,765 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 450 transitions. [2021-04-28 15:21:16,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 450 transitions. [2021-04-28 15:21:16,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 15:21:16,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 450 transitions. [2021-04-28 15:21:16,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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) [2021-04-28 15:21:16,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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) [2021-04-28 15:21:16,773 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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) [2021-04-28 15:21:16,773 INFO L185 Difference]: Start difference. First operand has 63 places, 67 transitions, 184 flow. Second operand 3 states and 450 transitions. [2021-04-28 15:21:16,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 67 transitions, 218 flow [2021-04-28 15:21:16,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 67 transitions, 202 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 15:21:16,779 INFO L241 Difference]: Finished difference. Result has 64 places, 64 transitions, 181 flow [2021-04-28 15:21:16,779 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=181, PETRI_PLACES=64, PETRI_TRANSITIONS=64} [2021-04-28 15:21:16,780 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -28 predicate places. [2021-04-28 15:21:16,780 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 15:21:16,780 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 64 transitions, 181 flow [2021-04-28 15:21:16,781 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 64 transitions, 181 flow [2021-04-28 15:21:16,782 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 64 transitions, 181 flow [2021-04-28 15:21:16,797 INFO L129 PetriNetUnfolder]: 6/140 cut-off events. [2021-04-28 15:21:16,798 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2021-04-28 15:21:16,799 INFO L84 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 140 events. 6/140 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 914 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 183. Up to 19 conditions per place. [2021-04-28 15:21:16,801 INFO L146 LiptonReduction]: Number of co-enabled transitions 1740 [2021-04-28 15:21:16,808 INFO L158 LiptonReduction]: Checked pairs total: 972 [2021-04-28 15:21:16,809 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 15:21:16,809 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-04-28 15:21:16,815 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 64 transitions, 181 flow [2021-04-28 15:21:16,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 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) [2021-04-28 15:21:16,816 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 15:21:16,816 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 15:21:16,816 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 15:21:16,817 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 15:21:16,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 15:21:16,817 INFO L82 PathProgramCache]: Analyzing trace with hash 928310778, now seen corresponding path program 1 times [2021-04-28 15:21:16,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 15:21:16,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638465996] [2021-04-28 15:21:16,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 15:21:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 15:21:16,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:21:16,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 15:21:16,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:21:16,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 15:21:16,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:21:16,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-28 15:21:16,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:21:16,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 15:21:16,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 15:21:16,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638465996] [2021-04-28 15:21:16,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 15:21:16,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 15:21:16,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169247540] [2021-04-28 15:21:16,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 15:21:16,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 15:21:16,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 15:21:16,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 15:21:16,925 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 216 [2021-04-28 15:21:16,926 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 64 transitions, 181 flow. Second operand has 4 states, 4 states have (on average 136.25) internal successors, (545), 4 states have internal predecessors, (545), 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) [2021-04-28 15:21:16,927 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 15:21:16,927 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 216 [2021-04-28 15:21:16,927 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 15:21:17,073 INFO L129 PetriNetUnfolder]: 134/525 cut-off events. [2021-04-28 15:21:17,074 INFO L130 PetriNetUnfolder]: For 54/57 co-relation queries the response was YES. [2021-04-28 15:21:17,075 INFO L84 FinitePrefix]: Finished finitePrefix Result has 918 conditions, 525 events. 134/525 cut-off events. For 54/57 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 4221 event pairs, 28 based on Foata normal form. 12/275 useless extension candidates. Maximal degree in co-relation 844. Up to 118 conditions per place. [2021-04-28 15:21:17,078 INFO L132 encePairwiseOnDemand]: 204/216 looper letters, 35 selfloop transitions, 14 changer transitions 4/94 dead transitions. [2021-04-28 15:21:17,078 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 94 transitions, 375 flow [2021-04-28 15:21:17,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 15:21:17,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 15:21:17,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 726 transitions. [2021-04-28 15:21:17,081 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6722222222222223 [2021-04-28 15:21:17,081 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 726 transitions. [2021-04-28 15:21:17,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 726 transitions. [2021-04-28 15:21:17,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 15:21:17,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 726 transitions. [2021-04-28 15:21:17,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 145.2) internal successors, (726), 5 states have internal predecessors, (726), 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) [2021-04-28 15:21:17,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 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) [2021-04-28 15:21:17,089 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 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) [2021-04-28 15:21:17,090 INFO L185 Difference]: Start difference. First operand has 61 places, 64 transitions, 181 flow. Second operand 5 states and 726 transitions. [2021-04-28 15:21:17,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 94 transitions, 375 flow [2021-04-28 15:21:17,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 94 transitions, 364 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 15:21:17,095 INFO L241 Difference]: Finished difference. Result has 67 places, 72 transitions, 281 flow [2021-04-28 15:21:17,095 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=281, PETRI_PLACES=67, PETRI_TRANSITIONS=72} [2021-04-28 15:21:17,095 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -25 predicate places. [2021-04-28 15:21:17,096 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 15:21:17,096 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 72 transitions, 281 flow [2021-04-28 15:21:17,096 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 72 transitions, 281 flow [2021-04-28 15:21:17,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 72 transitions, 281 flow [2021-04-28 15:21:17,122 INFO L129 PetriNetUnfolder]: 38/297 cut-off events. [2021-04-28 15:21:17,122 INFO L130 PetriNetUnfolder]: For 62/78 co-relation queries the response was YES. [2021-04-28 15:21:17,123 INFO L84 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 297 events. 38/297 cut-off events. For 62/78 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2206 event pairs, 4 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 510. Up to 50 conditions per place. [2021-04-28 15:21:17,127 INFO L146 LiptonReduction]: Number of co-enabled transitions 1888 [2021-04-28 15:21:17,142 INFO L158 LiptonReduction]: Checked pairs total: 706 [2021-04-28 15:21:17,142 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 15:21:17,142 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 46 [2021-04-28 15:21:17,144 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 72 transitions, 281 flow [2021-04-28 15:21:17,145 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 136.25) internal successors, (545), 4 states have internal predecessors, (545), 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) [2021-04-28 15:21:17,145 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 15:21:17,145 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 15:21:17,145 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 15:21:17,145 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 15:21:17,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 15:21:17,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1543622224, now seen corresponding path program 1 times [2021-04-28 15:21:17,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 15:21:17,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110724547] [2021-04-28 15:21:17,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 15:21:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 15:21:17,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:21:17,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 15:21:17,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:21:17,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 15:21:17,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:21:17,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-28 15:21:17,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:21:17,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 15:21:17,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 15:21:17,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110724547] [2021-04-28 15:21:17,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 15:21:17,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 15:21:17,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235220107] [2021-04-28 15:21:17,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 15:21:17,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 15:21:17,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 15:21:17,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 15:21:17,215 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 216 [2021-04-28 15:21:17,216 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 72 transitions, 281 flow. Second operand has 4 states, 4 states have (on average 141.25) internal successors, (565), 4 states have internal predecessors, (565), 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) [2021-04-28 15:21:17,216 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 15:21:17,216 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 216 [2021-04-28 15:21:17,217 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 15:21:17,377 INFO L129 PetriNetUnfolder]: 218/724 cut-off events. [2021-04-28 15:21:17,378 INFO L130 PetriNetUnfolder]: For 155/170 co-relation queries the response was YES. [2021-04-28 15:21:17,381 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1395 conditions, 724 events. 218/724 cut-off events. For 155/170 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 5637 event pairs, 32 based on Foata normal form. 9/420 useless extension candidates. Maximal degree in co-relation 1264. Up to 125 conditions per place. [2021-04-28 15:21:17,382 INFO L132 encePairwiseOnDemand]: 204/216 looper letters, 0 selfloop transitions, 0 changer transitions 102/102 dead transitions. [2021-04-28 15:21:17,382 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 102 transitions, 454 flow [2021-04-28 15:21:17,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 15:21:17,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 15:21:17,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 752 transitions. [2021-04-28 15:21:17,385 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6962962962962963 [2021-04-28 15:21:17,386 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 752 transitions. [2021-04-28 15:21:17,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 752 transitions. [2021-04-28 15:21:17,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 15:21:17,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 752 transitions. [2021-04-28 15:21:17,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 150.4) internal successors, (752), 5 states have internal predecessors, (752), 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) [2021-04-28 15:21:17,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 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) [2021-04-28 15:21:17,393 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 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) [2021-04-28 15:21:17,393 INFO L185 Difference]: Start difference. First operand has 67 places, 72 transitions, 281 flow. Second operand 5 states and 752 transitions. [2021-04-28 15:21:17,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 102 transitions, 454 flow [2021-04-28 15:21:17,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 102 transitions, 433 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 15:21:17,399 INFO L241 Difference]: Finished difference. Result has 67 places, 0 transitions, 0 flow [2021-04-28 15:21:17,400 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=67, PETRI_TRANSITIONS=0} [2021-04-28 15:21:17,400 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -25 predicate places. [2021-04-28 15:21:17,400 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 15:21:17,400 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 0 transitions, 0 flow [2021-04-28 15:21:17,401 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 0 transitions, 0 flow [2021-04-28 15:21:17,401 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-28 15:21:17,401 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-28 15:21:17,401 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 15:21:17,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-28 15:21:17,402 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-28 15:21:17,402 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 15:21:17,402 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 15:21:17,402 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-28 15:21:17,404 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-28 15:21:17,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 141.25) internal successors, (565), 4 states have internal predecessors, (565), 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) [2021-04-28 15:21:17,405 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 15:21:17,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 03:21:17 BasicIcfg [2021-04-28 15:21:17,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 15:21:17,411 INFO L168 Benchmark]: Toolchain (without parser) took 18340.00 ms. Allocated memory was 310.4 MB in the beginning and 463.5 MB in the end (delta: 153.1 MB). Free memory was 284.7 MB in the beginning and 216.0 MB in the end (delta: 68.7 MB). Peak memory consumption was 222.9 MB. Max. memory is 16.0 GB. [2021-04-28 15:21:17,412 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 310.4 MB. Free memory is still 278.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 15:21:17,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 674.66 ms. Allocated memory is still 310.4 MB. Free memory was 281.6 MB in the beginning and 282.0 MB in the end (delta: -443.4 kB). Peak memory consumption was 26.9 MB. Max. memory is 16.0 GB. [2021-04-28 15:21:17,413 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.01 ms. Allocated memory is still 310.4 MB. Free memory was 280.9 MB in the beginning and 279.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 15:21:17,414 INFO L168 Benchmark]: Boogie Preprocessor took 32.44 ms. Allocated memory is still 310.4 MB. Free memory was 279.9 MB in the beginning and 277.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 15:21:17,414 INFO L168 Benchmark]: RCFGBuilder took 684.43 ms. Allocated memory is still 310.4 MB. Free memory was 277.8 MB in the beginning and 253.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-04-28 15:21:17,415 INFO L168 Benchmark]: TraceAbstraction took 16846.91 ms. Allocated memory was 310.4 MB in the beginning and 463.5 MB in the end (delta: 153.1 MB). Free memory was 253.7 MB in the beginning and 216.0 MB in the end (delta: 37.7 MB). Peak memory consumption was 189.7 MB. Max. memory is 16.0 GB. [2021-04-28 15:21:17,418 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 310.4 MB. Free memory is still 278.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 674.66 ms. Allocated memory is still 310.4 MB. Free memory was 281.6 MB in the beginning and 282.0 MB in the end (delta: -443.4 kB). Peak memory consumption was 26.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 48.01 ms. Allocated memory is still 310.4 MB. Free memory was 280.9 MB in the beginning and 279.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.44 ms. Allocated memory is still 310.4 MB. Free memory was 279.9 MB in the beginning and 277.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 684.43 ms. Allocated memory is still 310.4 MB. Free memory was 277.8 MB in the beginning and 253.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 16846.91 ms. Allocated memory was 310.4 MB in the beginning and 463.5 MB in the end (delta: 153.1 MB). Free memory was 253.7 MB in the beginning and 216.0 MB in the end (delta: 37.7 MB). Peak memory consumption was 189.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15311.2ms, 77 PlacesBefore, 92 PlacesAfterwards, 84 TransitionsBefore, 93 TransitionsAfterwards, 2028 CoEnabledTransitionPairs, 8 FixpointIterations, 70 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 8 ConcurrentYvCompositions, 9 ChoiceCompositions, 120 TotalNumberOfCompositions, 11079 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4541, positive: 4247, positive conditional: 4247, positive unconditional: 0, negative: 294, negative conditional: 294, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1581, positive: 1533, positive conditional: 0, positive unconditional: 1533, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1581, positive: 1533, positive conditional: 0, positive unconditional: 1533, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1581, positive: 1519, positive conditional: 0, positive unconditional: 1519, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 62, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 207, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 173, negative conditional: 0, negative unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4541, positive: 2714, positive conditional: 2714, positive unconditional: 0, negative: 246, negative conditional: 246, negative unconditional: 0, unknown: 1581, unknown conditional: 1581, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1414, Positive cache size: 1367, Positive conditional cache size: 1367, Positive unconditional cache size: 0, Negative cache size: 47, Negative conditional cache size: 47, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 58.7ms, 89 PlacesBefore, 63 PlacesAfterwards, 67 TransitionsBefore, 67 TransitionsAfterwards, 1882 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1010 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 381, positive: 349, positive conditional: 349, positive unconditional: 0, negative: 32, negative conditional: 32, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 103, positive: 95, positive conditional: 20, positive unconditional: 75, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 103, positive: 95, positive conditional: 20, positive unconditional: 75, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 103, positive: 95, positive conditional: 0, positive unconditional: 95, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 27, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 381, positive: 254, positive conditional: 254, positive unconditional: 0, negative: 24, negative conditional: 24, negative unconditional: 0, unknown: 103, unknown conditional: 103, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1517, Positive cache size: 1462, Positive conditional cache size: 1462, Positive unconditional cache size: 0, Negative cache size: 55, Negative conditional cache size: 55, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.7ms, 64 PlacesBefore, 61 PlacesAfterwards, 64 TransitionsBefore, 64 TransitionsAfterwards, 1740 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 972 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 375, positive: 343, positive conditional: 343, positive unconditional: 0, negative: 32, negative conditional: 32, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 28, positive: 28, positive conditional: 4, positive unconditional: 24, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 28, positive: 28, positive conditional: 4, positive unconditional: 24, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 28, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 375, positive: 315, positive conditional: 315, positive unconditional: 0, negative: 32, negative conditional: 32, negative unconditional: 0, unknown: 28, unknown conditional: 28, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1545, Positive cache size: 1490, Positive conditional cache size: 1490, Positive unconditional cache size: 0, Negative cache size: 55, Negative conditional cache size: 55, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.8ms, 67 PlacesBefore, 67 PlacesAfterwards, 72 TransitionsBefore, 72 TransitionsAfterwards, 1888 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 706 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 304, positive: 282, positive conditional: 282, positive unconditional: 0, negative: 22, negative conditional: 22, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 67, positive: 67, positive conditional: 29, positive unconditional: 38, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 67, positive: 67, positive conditional: 29, positive unconditional: 38, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 67, positive: 67, positive conditional: 0, positive unconditional: 67, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 304, positive: 215, positive conditional: 215, positive unconditional: 0, negative: 22, negative conditional: 22, negative unconditional: 0, unknown: 67, unknown conditional: 67, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1612, Positive cache size: 1557, Positive conditional cache size: 1557, Positive unconditional cache size: 0, Negative cache size: 55, Negative conditional cache size: 55, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2ms, 67 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1612, Positive cache size: 1557, Positive conditional cache size: 1557, Positive unconditional cache size: 0, Negative cache size: 55, Negative conditional cache size: 55, Negative unconditional cache size: 0 - PositiveResult [Line: 780]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 739]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 82 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 10.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 16716.1ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 608.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15434.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 89 SDtfs, 54 SDslu, 31 SDs, 0 SdLazy, 109 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 159.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=281occurred in iteration=3, InterpolantAutomatonStates: 16, 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: 14.6ms SsaConstructionTime, 91.8ms SatisfiabilityAnalysisTime, 211.8ms InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 58 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...