/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 18:33:01,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 18:33:01,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 18:33:01,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 18:33:01,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 18:33:01,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 18:33:01,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 18:33:01,734 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 18:33:01,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 18:33:01,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 18:33:01,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 18:33:01,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 18:33:01,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 18:33:01,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 18:33:01,738 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 18:33:01,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 18:33:01,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 18:33:01,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 18:33:01,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 18:33:01,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 18:33:01,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 18:33:01,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 18:33:01,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 18:33:01,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 18:33:01,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 18:33:01,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 18:33:01,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 18:33:01,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 18:33:01,757 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2021-03-24 18:33:01,775 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 18:33:01,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 18:33:01,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 18:33:01,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 18:33:01,778 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 18:33:01,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 18:33:01,778 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 18:33:01,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 18:33:01,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 18:33:01,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 18:33:01,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 18:33:01,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 18:33:01,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 18:33:01,779 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 18:33:01,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 18:33:01,779 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 18:33:01,779 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 18:33:01,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 18:33:01,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 18:33:01,780 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 18:33:01,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 18:33:01,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 18:33:01,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 18:33:01,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 18:33:01,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 18:33:01,780 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 18:33:01,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 18:33:01,781 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 18:33:01,781 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 18:33:01,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 18:33:02,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 18:33:02,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 18:33:02,013 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 18:33:02,013 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 18:33:02,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2021-03-24 18:33:02,065 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d076710af/4bbd0e7738fc4e80a8122f8e07759960/FLAGd61ffec83 [2021-03-24 18:33:02,461 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 18:33:02,462 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2021-03-24 18:33:02,472 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d076710af/4bbd0e7738fc4e80a8122f8e07759960/FLAGd61ffec83 [2021-03-24 18:33:02,818 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d076710af/4bbd0e7738fc4e80a8122f8e07759960 [2021-03-24 18:33:02,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 18:33:02,820 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 18:33:02,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 18:33:02,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 18:33:02,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 18:33:02,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 06:33:02" (1/1) ... [2021-03-24 18:33:02,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e762097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:33:02, skipping insertion in model container [2021-03-24 18:33:02,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 06:33:02" (1/1) ... [2021-03-24 18:33:02,830 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 18:33:02,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 18:33:02,940 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-24 18:33:03,033 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/read_write_lock-1.i[31246,31259] [2021-03-24 18:33:03,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 18:33:03,072 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 18:33:03,081 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-24 18:33:03,104 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/read_write_lock-1.i[31246,31259] [2021-03-24 18:33:03,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 18:33:03,169 INFO L208 MainTranslator]: Completed translation [2021-03-24 18:33:03,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:33:03 WrapperNode [2021-03-24 18:33:03,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 18:33:03,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 18:33:03,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 18:33:03,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 18:33:03,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:33:03" (1/1) ... [2021-03-24 18:33:03,200 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:33:03" (1/1) ... [2021-03-24 18:33:03,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 18:33:03,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 18:33:03,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 18:33:03,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 18:33:03,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:33:03" (1/1) ... [2021-03-24 18:33:03,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:33:03" (1/1) ... [2021-03-24 18:33:03,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:33:03" (1/1) ... [2021-03-24 18:33:03,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:33:03" (1/1) ... [2021-03-24 18:33:03,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:33:03" (1/1) ... [2021-03-24 18:33:03,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:33:03" (1/1) ... [2021-03-24 18:33:03,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:33:03" (1/1) ... [2021-03-24 18:33:03,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 18:33:03,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 18:33:03,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 18:33:03,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 18:33:03,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:33:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 18:33:03,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-24 18:33:03,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 18:33:03,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 18:33:03,298 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2021-03-24 18:33:03,298 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2021-03-24 18:33:03,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 18:33:03,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 18:33:03,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 18:33:03,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 18:33:03,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 18:33:03,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 18:33:03,300 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2021-03-24 18:33:03,301 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2021-03-24 18:33:03,302 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 18:33:03,739 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 18:33:03,740 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-24 18:33:03,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 06:33:03 BoogieIcfgContainer [2021-03-24 18:33:03,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 18:33:03,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 18:33:03,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 18:33:03,744 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 18:33:03,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 06:33:02" (1/3) ... [2021-03-24 18:33:03,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3450d951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 06:33:03, skipping insertion in model container [2021-03-24 18:33:03,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 06:33:03" (2/3) ... [2021-03-24 18:33:03,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3450d951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 06:33:03, skipping insertion in model container [2021-03-24 18:33:03,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 06:33:03" (3/3) ... [2021-03-24 18:33:03,745 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2021-03-24 18:33:03,750 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 18:33:03,752 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-24 18:33:03,753 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 18:33:03,779 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,780 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,780 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,780 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,780 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,780 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,780 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,780 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,781 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,781 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,781 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,781 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,781 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,781 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,781 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,781 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,781 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,782 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,782 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,782 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,782 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,782 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,783 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,783 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,783 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,783 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,783 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,783 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,783 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,783 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,783 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,784 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,784 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,784 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,785 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,785 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,785 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,785 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,785 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,785 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,786 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,786 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,786 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,786 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,786 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,786 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,787 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,787 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,787 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,787 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,787 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,787 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,787 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,790 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,790 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,790 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,790 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,790 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,790 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,790 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,791 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,791 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,791 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,791 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,791 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,791 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,791 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,792 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,792 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,792 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,792 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,792 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,792 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,792 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,792 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,792 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,804 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,804 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,804 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,804 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,804 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,805 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,805 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,805 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,805 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,805 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,805 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,805 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,805 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,805 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,805 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,806 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,806 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,806 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,806 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,806 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,806 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,806 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,806 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,806 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,808 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,808 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,808 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,808 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,808 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,808 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,808 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,808 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,809 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,810 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,810 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,810 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,810 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,810 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,810 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,811 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,811 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,811 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,811 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,812 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,812 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,812 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,812 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,812 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,813 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,813 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,813 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,813 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,813 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,813 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 18:33:03,822 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-03-24 18:33:03,833 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-24 18:33:03,845 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 18:33:03,845 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 18:33:03,845 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 18:33:03,845 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 18:33:03,845 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 18:33:03,845 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 18:33:03,845 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 18:33:03,845 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 18:33:03,852 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 107 places, 108 transitions, 284 flow [2021-03-24 18:33:03,881 INFO L129 PetriNetUnfolder]: 19/142 cut-off events. [2021-03-24 18:33:03,882 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-03-24 18:33:03,886 INFO L84 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 142 events. 19/142 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 322 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 95. Up to 12 conditions per place. [2021-03-24 18:33:03,887 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 108 transitions, 284 flow [2021-03-24 18:33:03,890 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 88 transitions, 224 flow [2021-03-24 18:33:03,890 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-24 18:33:03,898 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 88 transitions, 224 flow [2021-03-24 18:33:03,901 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 88 transitions, 224 flow [2021-03-24 18:33:03,903 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 88 transitions, 224 flow [2021-03-24 18:33:03,935 INFO L129 PetriNetUnfolder]: 16/126 cut-off events. [2021-03-24 18:33:03,935 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2021-03-24 18:33:03,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 126 events. 16/126 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 324 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 95. Up to 12 conditions per place. [2021-03-24 18:33:03,939 INFO L142 LiptonReduction]: Number of co-enabled transitions 2808 [2021-03-24 18:33:05,258 INFO L154 LiptonReduction]: Checked pairs total: 3978 [2021-03-24 18:33:05,258 INFO L156 LiptonReduction]: Total number of compositions: 39 [2021-03-24 18:33:05,260 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1370 [2021-03-24 18:33:05,267 INFO L129 PetriNetUnfolder]: 1/26 cut-off events. [2021-03-24 18:33:05,267 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 18:33:05,267 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:33:05,267 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:33:05,267 INFO L428 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:33:05,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:33:05,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1532044476, now seen corresponding path program 1 times [2021-03-24 18:33:05,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:33:05,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733430806] [2021-03-24 18:33:05,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:33:05,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:33:05,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:05,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:33:05,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:05,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:33:05,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:05,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:33:05,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:05,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:33:05,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 18:33:05,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733430806] [2021-03-24 18:33:05,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:33:05,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 18:33:05,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870243112] [2021-03-24 18:33:05,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 18:33:05,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:33:05,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 18:33:05,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 18:33:05,425 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 147 [2021-03-24 18:33:05,428 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 53 transitions, 154 flow. Second operand has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:05,428 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:33:05,429 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 147 [2021-03-24 18:33:05,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:33:05,674 INFO L129 PetriNetUnfolder]: 833/2003 cut-off events. [2021-03-24 18:33:05,675 INFO L130 PetriNetUnfolder]: For 502/502 co-relation queries the response was YES. [2021-03-24 18:33:05,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3547 conditions, 2003 events. 833/2003 cut-off events. For 502/502 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 15863 event pairs, 105 based on Foata normal form. 0/1845 useless extension candidates. Maximal degree in co-relation 2969. Up to 611 conditions per place. [2021-03-24 18:33:05,692 INFO L132 encePairwiseOnDemand]: 137/147 looper letters, 42 selfloop transitions, 18 changer transitions 0/95 dead transitions. [2021-03-24 18:33:05,692 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 95 transitions, 361 flow [2021-03-24 18:33:05,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 18:33:05,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 18:33:05,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 904 transitions. [2021-03-24 18:33:05,705 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8785228377065112 [2021-03-24 18:33:05,705 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 904 transitions. [2021-03-24 18:33:05,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 904 transitions. [2021-03-24 18:33:05,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:33:05,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 904 transitions. [2021-03-24 18:33:05,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 129.14285714285714) internal successors, (904), 7 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:05,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 147.0) internal successors, (1176), 8 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:05,720 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 147.0) internal successors, (1176), 8 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:05,721 INFO L185 Difference]: Start difference. First operand has 55 places, 53 transitions, 154 flow. Second operand 7 states and 904 transitions. [2021-03-24 18:33:05,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 95 transitions, 361 flow [2021-03-24 18:33:05,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 95 transitions, 327 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-03-24 18:33:05,735 INFO L241 Difference]: Finished difference. Result has 57 places, 68 transitions, 222 flow [2021-03-24 18:33:05,736 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=222, PETRI_PLACES=57, PETRI_TRANSITIONS=68} [2021-03-24 18:33:05,737 INFO L343 CegarLoopForPetriNet]: 55 programPoint places, 2 predicate places. [2021-03-24 18:33:05,737 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 68 transitions, 222 flow [2021-03-24 18:33:05,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:05,737 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:33:05,737 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:33:05,737 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 18:33:05,738 INFO L428 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:33:05,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:33:05,738 INFO L82 PathProgramCache]: Analyzing trace with hash -877276144, now seen corresponding path program 1 times [2021-03-24 18:33:05,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:33:05,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212557192] [2021-03-24 18:33:05,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:33:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:33:05,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:05,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:33:05,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:05,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:33:05,812 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-24 18:33:05,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 18:33:05,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:05,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:33:05,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 18:33:05,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212557192] [2021-03-24 18:33:05,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:33:05,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 18:33:05,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428097543] [2021-03-24 18:33:05,823 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 18:33:05,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:33:05,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 18:33:05,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 18:33:05,824 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 147 [2021-03-24 18:33:05,824 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 68 transitions, 222 flow. Second operand has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:05,824 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:33:05,824 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 147 [2021-03-24 18:33:05,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:33:06,001 INFO L129 PetriNetUnfolder]: 802/2859 cut-off events. [2021-03-24 18:33:06,001 INFO L130 PetriNetUnfolder]: For 52/55 co-relation queries the response was YES. [2021-03-24 18:33:06,009 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3876 conditions, 2859 events. 802/2859 cut-off events. For 52/55 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 30454 event pairs, 22 based on Foata normal form. 109/2818 useless extension candidates. Maximal degree in co-relation 2849. Up to 600 conditions per place. [2021-03-24 18:33:06,016 INFO L132 encePairwiseOnDemand]: 138/147 looper letters, 9 selfloop transitions, 19 changer transitions 0/86 dead transitions. [2021-03-24 18:33:06,016 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 86 transitions, 314 flow [2021-03-24 18:33:06,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 18:33:06,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 18:33:06,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 619 transitions. [2021-03-24 18:33:06,018 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8421768707482993 [2021-03-24 18:33:06,018 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 619 transitions. [2021-03-24 18:33:06,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 619 transitions. [2021-03-24 18:33:06,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:33:06,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 619 transitions. [2021-03-24 18:33:06,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 123.8) internal successors, (619), 5 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:06,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 147.0) internal successors, (882), 6 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:06,021 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 147.0) internal successors, (882), 6 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:06,021 INFO L185 Difference]: Start difference. First operand has 57 places, 68 transitions, 222 flow. Second operand 5 states and 619 transitions. [2021-03-24 18:33:06,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 86 transitions, 314 flow [2021-03-24 18:33:06,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 86 transitions, 314 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-24 18:33:06,024 INFO L241 Difference]: Finished difference. Result has 63 places, 84 transitions, 328 flow [2021-03-24 18:33:06,025 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=328, PETRI_PLACES=63, PETRI_TRANSITIONS=84} [2021-03-24 18:33:06,025 INFO L343 CegarLoopForPetriNet]: 55 programPoint places, 8 predicate places. [2021-03-24 18:33:06,026 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 84 transitions, 328 flow [2021-03-24 18:33:06,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:06,026 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:33:06,026 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:33:06,026 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 18:33:06,026 INFO L428 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:33:06,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:33:06,027 INFO L82 PathProgramCache]: Analyzing trace with hash 2007235861, now seen corresponding path program 1 times [2021-03-24 18:33:06,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:33:06,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480767118] [2021-03-24 18:33:06,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:33:06,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:33:06,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:06,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:33:06,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:06,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:33:06,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:06,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:33:06,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:06,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:33:06,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 18:33:06,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480767118] [2021-03-24 18:33:06,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:33:06,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 18:33:06,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276324206] [2021-03-24 18:33:06,070 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 18:33:06,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:33:06,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 18:33:06,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 18:33:06,073 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 147 [2021-03-24 18:33:06,073 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 84 transitions, 328 flow. Second operand has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:06,073 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:33:06,073 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 147 [2021-03-24 18:33:06,074 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:33:06,836 INFO L129 PetriNetUnfolder]: 3667/10909 cut-off events. [2021-03-24 18:33:06,836 INFO L130 PetriNetUnfolder]: For 2688/2830 co-relation queries the response was YES. [2021-03-24 18:33:06,863 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19405 conditions, 10909 events. 3667/10909 cut-off events. For 2688/2830 co-relation queries the response was YES. Maximal size of possible extension queue 1260. Compared 134899 event pairs, 316 based on Foata normal form. 41/10385 useless extension candidates. Maximal degree in co-relation 14723. Up to 2064 conditions per place. [2021-03-24 18:33:06,897 INFO L132 encePairwiseOnDemand]: 139/147 looper letters, 63 selfloop transitions, 47 changer transitions 0/159 dead transitions. [2021-03-24 18:33:06,898 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 159 transitions, 871 flow [2021-03-24 18:33:06,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 18:33:06,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 18:33:06,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 895 transitions. [2021-03-24 18:33:06,900 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.86977648202138 [2021-03-24 18:33:06,900 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 895 transitions. [2021-03-24 18:33:06,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 895 transitions. [2021-03-24 18:33:06,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:33:06,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 895 transitions. [2021-03-24 18:33:06,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 127.85714285714286) internal successors, (895), 7 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:06,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 147.0) internal successors, (1176), 8 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:06,904 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 147.0) internal successors, (1176), 8 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:06,904 INFO L185 Difference]: Start difference. First operand has 63 places, 84 transitions, 328 flow. Second operand 7 states and 895 transitions. [2021-03-24 18:33:06,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 159 transitions, 871 flow [2021-03-24 18:33:06,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 159 transitions, 871 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-24 18:33:06,918 INFO L241 Difference]: Finished difference. Result has 73 places, 128 transitions, 716 flow [2021-03-24 18:33:06,918 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=716, PETRI_PLACES=73, PETRI_TRANSITIONS=128} [2021-03-24 18:33:06,918 INFO L343 CegarLoopForPetriNet]: 55 programPoint places, 18 predicate places. [2021-03-24 18:33:06,918 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 128 transitions, 716 flow [2021-03-24 18:33:06,919 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:06,919 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:33:06,919 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:33:06,921 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 18:33:06,921 INFO L428 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:33:06,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:33:06,922 INFO L82 PathProgramCache]: Analyzing trace with hash -771744804, now seen corresponding path program 1 times [2021-03-24 18:33:06,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:33:06,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254368374] [2021-03-24 18:33:06,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:33:06,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:33:06,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:06,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:33:06,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:06,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:33:06,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:06,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:33:06,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:06,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:33:06,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:06,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:33:06,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 18:33:06,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254368374] [2021-03-24 18:33:06,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:33:06,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 18:33:06,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863762839] [2021-03-24 18:33:06,972 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 18:33:06,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:33:06,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 18:33:06,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 18:33:06,973 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 147 [2021-03-24 18:33:06,973 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 128 transitions, 716 flow. Second operand has 5 states, 5 states have (on average 126.8) internal successors, (634), 5 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:06,973 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:33:06,973 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 147 [2021-03-24 18:33:06,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:33:07,201 INFO L129 PetriNetUnfolder]: 506/1910 cut-off events. [2021-03-24 18:33:07,202 INFO L130 PetriNetUnfolder]: For 623/728 co-relation queries the response was YES. [2021-03-24 18:33:07,208 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3245 conditions, 1910 events. 506/1910 cut-off events. For 623/728 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 18754 event pairs, 0 based on Foata normal form. 67/1880 useless extension candidates. Maximal degree in co-relation 2756. Up to 396 conditions per place. [2021-03-24 18:33:07,211 INFO L132 encePairwiseOnDemand]: 140/147 looper letters, 6 selfloop transitions, 17 changer transitions 0/110 dead transitions. [2021-03-24 18:33:07,211 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 110 transitions, 618 flow [2021-03-24 18:33:07,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 18:33:07,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 18:33:07,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 653 transitions. [2021-03-24 18:33:07,213 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8884353741496599 [2021-03-24 18:33:07,213 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 653 transitions. [2021-03-24 18:33:07,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 653 transitions. [2021-03-24 18:33:07,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:33:07,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 653 transitions. [2021-03-24 18:33:07,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.6) internal successors, (653), 5 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:07,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 147.0) internal successors, (882), 6 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:07,216 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 147.0) internal successors, (882), 6 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:07,216 INFO L185 Difference]: Start difference. First operand has 73 places, 128 transitions, 716 flow. Second operand 5 states and 653 transitions. [2021-03-24 18:33:07,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 110 transitions, 618 flow [2021-03-24 18:33:07,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 110 transitions, 596 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-24 18:33:07,221 INFO L241 Difference]: Finished difference. Result has 75 places, 110 transitions, 588 flow [2021-03-24 18:33:07,221 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=588, PETRI_PLACES=75, PETRI_TRANSITIONS=110} [2021-03-24 18:33:07,221 INFO L343 CegarLoopForPetriNet]: 55 programPoint places, 20 predicate places. [2021-03-24 18:33:07,221 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 110 transitions, 588 flow [2021-03-24 18:33:07,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 126.8) internal successors, (634), 5 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:07,221 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:33:07,222 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:33:07,222 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 18:33:07,222 INFO L428 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:33:07,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:33:07,222 INFO L82 PathProgramCache]: Analyzing trace with hash -707952043, now seen corresponding path program 1 times [2021-03-24 18:33:07,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:33:07,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236118733] [2021-03-24 18:33:07,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:33:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:33:07,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:07,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:33:07,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:07,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:33:07,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:07,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:33:07,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:07,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:33:07,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 18:33:07,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236118733] [2021-03-24 18:33:07,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:33:07,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 18:33:07,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271814159] [2021-03-24 18:33:07,247 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 18:33:07,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:33:07,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 18:33:07,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 18:33:07,249 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 147 [2021-03-24 18:33:07,249 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 110 transitions, 588 flow. Second operand has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:07,249 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:33:07,249 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 147 [2021-03-24 18:33:07,249 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:33:07,459 INFO L129 PetriNetUnfolder]: 797/2704 cut-off events. [2021-03-24 18:33:07,459 INFO L130 PetriNetUnfolder]: For 1180/1224 co-relation queries the response was YES. [2021-03-24 18:33:07,466 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5244 conditions, 2704 events. 797/2704 cut-off events. For 1180/1224 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 26722 event pairs, 56 based on Foata normal form. 16/2612 useless extension candidates. Maximal degree in co-relation 4383. Up to 500 conditions per place. [2021-03-24 18:33:07,471 INFO L132 encePairwiseOnDemand]: 139/147 looper letters, 50 selfloop transitions, 34 changer transitions 0/134 dead transitions. [2021-03-24 18:33:07,471 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 134 transitions, 859 flow [2021-03-24 18:33:07,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 18:33:07,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 18:33:07,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 761 transitions. [2021-03-24 18:33:07,472 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.86281179138322 [2021-03-24 18:33:07,473 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 761 transitions. [2021-03-24 18:33:07,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 761 transitions. [2021-03-24 18:33:07,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:33:07,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 761 transitions. [2021-03-24 18:33:07,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.83333333333333) internal successors, (761), 6 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:07,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:07,475 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:07,475 INFO L185 Difference]: Start difference. First operand has 75 places, 110 transitions, 588 flow. Second operand 6 states and 761 transitions. [2021-03-24 18:33:07,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 134 transitions, 859 flow [2021-03-24 18:33:07,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 134 transitions, 845 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-24 18:33:07,481 INFO L241 Difference]: Finished difference. Result has 81 places, 113 transitions, 689 flow [2021-03-24 18:33:07,481 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=689, PETRI_PLACES=81, PETRI_TRANSITIONS=113} [2021-03-24 18:33:07,481 INFO L343 CegarLoopForPetriNet]: 55 programPoint places, 26 predicate places. [2021-03-24 18:33:07,481 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 113 transitions, 689 flow [2021-03-24 18:33:07,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:07,481 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:33:07,481 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:33:07,481 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 18:33:07,481 INFO L428 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:33:07,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:33:07,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1698405422, now seen corresponding path program 1 times [2021-03-24 18:33:07,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:33:07,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886180356] [2021-03-24 18:33:07,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:33:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:33:07,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:07,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:33:07,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:07,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:33:07,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:07,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:33:07,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:07,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:33:07,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 18:33:07,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886180356] [2021-03-24 18:33:07,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:33:07,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 18:33:07,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465894448] [2021-03-24 18:33:07,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 18:33:07,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:33:07,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 18:33:07,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 18:33:07,506 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 147 [2021-03-24 18:33:07,506 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 113 transitions, 689 flow. Second operand has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:07,506 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:33:07,506 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 147 [2021-03-24 18:33:07,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:33:07,696 INFO L129 PetriNetUnfolder]: 780/2660 cut-off events. [2021-03-24 18:33:07,696 INFO L130 PetriNetUnfolder]: For 1645/1675 co-relation queries the response was YES. [2021-03-24 18:33:07,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5257 conditions, 2660 events. 780/2660 cut-off events. For 1645/1675 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 26461 event pairs, 50 based on Foata normal form. 28/2572 useless extension candidates. Maximal degree in co-relation 4748. Up to 498 conditions per place. [2021-03-24 18:33:07,717 INFO L132 encePairwiseOnDemand]: 139/147 looper letters, 39 selfloop transitions, 27 changer transitions 24/136 dead transitions. [2021-03-24 18:33:07,717 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 136 transitions, 960 flow [2021-03-24 18:33:07,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 18:33:07,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 18:33:07,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 762 transitions. [2021-03-24 18:33:07,719 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8639455782312925 [2021-03-24 18:33:07,719 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 762 transitions. [2021-03-24 18:33:07,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 762 transitions. [2021-03-24 18:33:07,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:33:07,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 762 transitions. [2021-03-24 18:33:07,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 127.0) internal successors, (762), 6 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:07,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:07,722 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:07,722 INFO L185 Difference]: Start difference. First operand has 81 places, 113 transitions, 689 flow. Second operand 6 states and 762 transitions. [2021-03-24 18:33:07,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 136 transitions, 960 flow [2021-03-24 18:33:07,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 136 transitions, 905 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-24 18:33:07,730 INFO L241 Difference]: Finished difference. Result has 85 places, 101 transitions, 615 flow [2021-03-24 18:33:07,731 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=615, PETRI_PLACES=85, PETRI_TRANSITIONS=101} [2021-03-24 18:33:07,731 INFO L343 CegarLoopForPetriNet]: 55 programPoint places, 30 predicate places. [2021-03-24 18:33:07,731 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 101 transitions, 615 flow [2021-03-24 18:33:07,731 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:07,731 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 18:33:07,731 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 18:33:07,731 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 18:33:07,731 INFO L428 AbstractCegarLoop]: === Iteration 7 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-24 18:33:07,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 18:33:07,732 INFO L82 PathProgramCache]: Analyzing trace with hash 832490599, now seen corresponding path program 1 times [2021-03-24 18:33:07,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 18:33:07,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319951985] [2021-03-24 18:33:07,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 18:33:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 18:33:07,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:07,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:33:07,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:07,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:33:07,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:07,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:33:07,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:07,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:33:07,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:07,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 18:33:07,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 18:33:07,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 18:33:07,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 18:33:07,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319951985] [2021-03-24 18:33:07,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 18:33:07,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 18:33:07,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61783020] [2021-03-24 18:33:07,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 18:33:07,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 18:33:07,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 18:33:07,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-24 18:33:07,794 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 147 [2021-03-24 18:33:07,795 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 101 transitions, 615 flow. Second operand has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:07,795 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 18:33:07,795 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 147 [2021-03-24 18:33:07,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 18:33:07,851 INFO L129 PetriNetUnfolder]: 134/655 cut-off events. [2021-03-24 18:33:07,851 INFO L130 PetriNetUnfolder]: For 540/573 co-relation queries the response was YES. [2021-03-24 18:33:07,853 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1322 conditions, 655 events. 134/655 cut-off events. For 540/573 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4898 event pairs, 0 based on Foata normal form. 11/633 useless extension candidates. Maximal degree in co-relation 1303. Up to 108 conditions per place. [2021-03-24 18:33:07,853 INFO L132 encePairwiseOnDemand]: 140/147 looper letters, 0 selfloop transitions, 0 changer transitions 73/73 dead transitions. [2021-03-24 18:33:07,853 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 73 transitions, 415 flow [2021-03-24 18:33:07,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 18:33:07,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 18:33:07,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 645 transitions. [2021-03-24 18:33:07,855 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8775510204081632 [2021-03-24 18:33:07,855 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 645 transitions. [2021-03-24 18:33:07,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 645 transitions. [2021-03-24 18:33:07,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 18:33:07,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 645 transitions. [2021-03-24 18:33:07,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:07,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 147.0) internal successors, (882), 6 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:07,857 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 147.0) internal successors, (882), 6 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:07,857 INFO L185 Difference]: Start difference. First operand has 85 places, 101 transitions, 615 flow. Second operand 5 states and 645 transitions. [2021-03-24 18:33:07,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 73 transitions, 415 flow [2021-03-24 18:33:07,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 73 transitions, 319 flow, removed 0 selfloop flow, removed 17 redundant places. [2021-03-24 18:33:07,860 INFO L241 Difference]: Finished difference. Result has 68 places, 0 transitions, 0 flow [2021-03-24 18:33:07,860 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=68, PETRI_TRANSITIONS=0} [2021-03-24 18:33:07,860 INFO L343 CegarLoopForPetriNet]: 55 programPoint places, 13 predicate places. [2021-03-24 18:33:07,860 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 0 transitions, 0 flow [2021-03-24 18:33:07,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 18:33:07,860 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 18:33:07,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 06:33:07 BasicIcfg [2021-03-24 18:33:07,863 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 18:33:07,863 INFO L168 Benchmark]: Toolchain (without parser) took 5042.90 ms. Allocated memory was 255.9 MB in the beginning and 643.8 MB in the end (delta: 388.0 MB). Free memory was 234.9 MB in the beginning and 559.2 MB in the end (delta: -324.3 MB). Peak memory consumption was 262.5 MB. Max. memory is 16.0 GB. [2021-03-24 18:33:07,864 INFO L168 Benchmark]: CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 18:33:07,864 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.50 ms. Allocated memory was 255.9 MB in the beginning and 369.1 MB in the end (delta: 113.2 MB). Free memory was 234.3 MB in the beginning and 333.0 MB in the end (delta: -98.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.0 GB. [2021-03-24 18:33:07,864 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.62 ms. Allocated memory is still 369.1 MB. Free memory was 333.0 MB in the beginning and 330.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 18:33:07,865 INFO L168 Benchmark]: Boogie Preprocessor took 13.78 ms. Allocated memory is still 369.1 MB. Free memory was 330.8 MB in the beginning and 329.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 18:33:07,865 INFO L168 Benchmark]: RCFGBuilder took 505.43 ms. Allocated memory is still 369.1 MB. Free memory was 329.4 MB in the beginning and 298.7 MB in the end (delta: 30.7 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. [2021-03-24 18:33:07,865 INFO L168 Benchmark]: TraceAbstraction took 4121.02 ms. Allocated memory was 369.1 MB in the beginning and 643.8 MB in the end (delta: 274.7 MB). Free memory was 298.0 MB in the beginning and 559.2 MB in the end (delta: -261.2 MB). Peak memory consumption was 213.1 MB. Max. memory is 16.0 GB. [2021-03-24 18:33:07,867 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 348.50 ms. Allocated memory was 255.9 MB in the beginning and 369.1 MB in the end (delta: 113.2 MB). Free memory was 234.3 MB in the beginning and 333.0 MB in the end (delta: -98.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 49.62 ms. Allocated memory is still 369.1 MB. Free memory was 333.0 MB in the beginning and 330.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.78 ms. Allocated memory is still 369.1 MB. Free memory was 330.8 MB in the beginning and 329.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 505.43 ms. Allocated memory is still 369.1 MB. Free memory was 329.4 MB in the beginning and 298.7 MB in the end (delta: 30.7 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4121.02 ms. Allocated memory was 369.1 MB in the beginning and 643.8 MB in the end (delta: 274.7 MB). Free memory was 298.0 MB in the beginning and 559.2 MB in the end (delta: -261.2 MB). Peak memory consumption was 213.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1357.0ms, 90 PlacesBefore, 55 PlacesAfterwards, 88 TransitionsBefore, 53 TransitionsAfterwards, 2808 CoEnabledTransitionPairs, 4 FixpointIterations, 16 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 39 TotalNumberOfCompositions, 3978 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1945, positive: 1865, positive conditional: 0, positive unconditional: 1865, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1384, positive: 1351, positive conditional: 0, positive unconditional: 1351, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1384, positive: 1351, positive conditional: 0, positive unconditional: 1351, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1384, positive: 1342, positive conditional: 0, positive unconditional: 1342, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 42, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 109, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1945, positive: 514, positive conditional: 0, positive unconditional: 514, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 1384, unknown conditional: 0, unknown unconditional: 1384] , Statistics on independence cache: Total cache size (in pairs): 243, Positive cache size: 225, Positive conditional cache size: 0, Positive unconditional cache size: 225, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - 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, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4018.4ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2139.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1418.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 79 SDtfs, 139 SDslu, 56 SDs, 0 SdLazy, 394 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 281.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 99.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=716occurred in iteration=3, InterpolantAutomatonStates: 41, 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: 14.2ms SsaConstructionTime, 77.3ms SatisfiabilityAnalysisTime, 257.4ms InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 131 ConstructedInterpolants, 0 QuantifiedInterpolants, 269 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...