/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 02:39:38,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 02:39:38,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 02:39:38,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 02:39:38,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 02:39:38,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 02:39:38,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 02:39:38,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 02:39:38,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 02:39:38,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 02:39:38,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 02:39:38,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 02:39:38,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 02:39:38,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 02:39:38,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 02:39:38,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 02:39:38,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 02:39:38,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 02:39:38,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 02:39:38,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 02:39:38,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 02:39:38,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 02:39:38,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 02:39:38,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 02:39:38,531 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 02:39:38,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 02:39:38,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 02:39:38,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 02:39:38,542 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-NoLbe.epf [2021-03-11 02:39:38,577 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 02:39:38,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 02:39:38,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 02:39:38,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 02:39:38,580 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 02:39:38,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 02:39:38,580 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 02:39:38,581 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 02:39:38,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 02:39:38,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 02:39:38,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 02:39:38,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 02:39:38,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 02:39:38,582 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 02:39:38,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 02:39:38,582 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 02:39:38,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 02:39:38,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 02:39:38,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 02:39:38,583 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 02:39:38,583 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 02:39:38,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 02:39:38,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 02:39:38,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 02:39:38,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 02:39:38,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 02:39:38,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 02:39:38,584 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-11 02:39:38,584 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 02:39:38,584 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 02:39:38,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 02:39:38,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 02:39:38,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 02:39:38,895 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 02:39:38,895 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 02:39:38,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2021-03-11 02:39:38,954 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63f29a611/27efcf39476a458387a975ba69ea525c/FLAGbf43ab6cd [2021-03-11 02:39:39,482 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 02:39:39,482 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2021-03-11 02:39:39,494 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63f29a611/27efcf39476a458387a975ba69ea525c/FLAGbf43ab6cd [2021-03-11 02:39:39,769 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63f29a611/27efcf39476a458387a975ba69ea525c [2021-03-11 02:39:39,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 02:39:39,774 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 02:39:39,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 02:39:39,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 02:39:39,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 02:39:39,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:39:39" (1/1) ... [2021-03-11 02:39:39,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b617c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:39, skipping insertion in model container [2021-03-11 02:39:39,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:39:39" (1/1) ... [2021-03-11 02:39:39,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 02:39:39,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 02:39:39,965 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i[949,962] [2021-03-11 02:39:40,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 02:39:40,074 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 02:39:40,105 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i[949,962] [2021-03-11 02:39:40,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 02:39:40,210 INFO L208 MainTranslator]: Completed translation [2021-03-11 02:39:40,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:40 WrapperNode [2021-03-11 02:39:40,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 02:39:40,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 02:39:40,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 02:39:40,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 02:39:40,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:40" (1/1) ... [2021-03-11 02:39:40,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:40" (1/1) ... [2021-03-11 02:39:40,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 02:39:40,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 02:39:40,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 02:39:40,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 02:39:40,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:40" (1/1) ... [2021-03-11 02:39:40,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:40" (1/1) ... [2021-03-11 02:39:40,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:40" (1/1) ... [2021-03-11 02:39:40,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:40" (1/1) ... [2021-03-11 02:39:40,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:40" (1/1) ... [2021-03-11 02:39:40,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:40" (1/1) ... [2021-03-11 02:39:40,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:40" (1/1) ... [2021-03-11 02:39:40,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 02:39:40,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 02:39:40,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 02:39:40,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 02:39:40,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:40" (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 [2021-03-11 02:39:40,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 02:39:40,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 02:39:40,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 02:39:40,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 02:39:40,361 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-11 02:39:40,361 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-11 02:39:40,362 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-11 02:39:40,362 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-11 02:39:40,362 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-11 02:39:40,362 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-11 02:39:40,362 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-11 02:39:40,363 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-11 02:39:40,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 02:39:40,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 02:39:40,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 02:39:40,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 02:39:40,364 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 02:39:40,803 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 02:39:40,803 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-11 02:39:40,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:39:40 BoogieIcfgContainer [2021-03-11 02:39:40,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 02:39:40,806 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 02:39:40,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 02:39:40,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 02:39:40,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 02:39:39" (1/3) ... [2021-03-11 02:39:40,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e937034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:39:40, skipping insertion in model container [2021-03-11 02:39:40,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:39:40" (2/3) ... [2021-03-11 02:39:40,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e937034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:39:40, skipping insertion in model container [2021-03-11 02:39:40,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:39:40" (3/3) ... [2021-03-11 02:39:40,810 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.opt.i [2021-03-11 02:39:40,815 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 02:39:40,819 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 02:39:40,819 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 02:39:40,848 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,848 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,848 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,849 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,849 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,849 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,849 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,849 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,851 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,851 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,851 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,851 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,851 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,851 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,851 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,852 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,852 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,852 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,852 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,852 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,853 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,853 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,853 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,853 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,853 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,853 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,853 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,854 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,854 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,854 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,854 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,854 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,855 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,855 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,855 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,855 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,855 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,855 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,855 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,856 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,856 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,856 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,856 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,856 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,858 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,858 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,858 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,859 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,863 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,863 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,863 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,863 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,865 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,865 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,865 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,866 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,867 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,868 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,868 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,868 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 02:39:40,869 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 02:39:40,883 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-11 02:39:40,899 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 02:39:40,899 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 02:39:40,900 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 02:39:40,900 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 02:39:40,900 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 02:39:40,900 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 02:39:40,900 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 02:39:40,900 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 02:39:40,909 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 91 transitions, 202 flow [2021-03-11 02:39:40,945 INFO L129 PetriNetUnfolder]: 2/87 cut-off events. [2021-03-11 02:39:40,945 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:39:40,949 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 87 events. 2/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2021-03-11 02:39:40,949 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 91 transitions, 202 flow [2021-03-11 02:39:40,953 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 73 transitions, 158 flow [2021-03-11 02:39:40,970 INFO L129 PetriNetUnfolder]: 1/72 cut-off events. [2021-03-11 02:39:40,971 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:39:40,971 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:39:40,972 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:39:40,972 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:39:40,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:39:40,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1187004493, now seen corresponding path program 1 times [2021-03-11 02:39:40,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:39:40,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768532892] [2021-03-11 02:39:40,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:39:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:39:41,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:41,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:41,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:41,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:41,264 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:39:41,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:39:41,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:41,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:41,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:41,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:41,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:41,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:41,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:39:41,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768532892] [2021-03-11 02:39:41,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:39:41,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:39:41,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139698251] [2021-03-11 02:39:41,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:39:41,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:39:41,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:39:41,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:39:41,390 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 91 [2021-03-11 02:39:41,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 73 transitions, 158 flow. Second operand has 6 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 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) [2021-03-11 02:39:41,396 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:39:41,396 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 91 [2021-03-11 02:39:41,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:39:41,573 INFO L129 PetriNetUnfolder]: 3/95 cut-off events. [2021-03-11 02:39:41,574 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 02:39:41,574 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 95 events. 3/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 137 event pairs, 0 based on Foata normal form. 4/98 useless extension candidates. Maximal degree in co-relation 95. Up to 7 conditions per place. [2021-03-11 02:39:41,576 INFO L132 encePairwiseOnDemand]: 84/91 looper letters, 6 selfloop transitions, 2 changer transitions 11/82 dead transitions. [2021-03-11 02:39:41,576 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 82 transitions, 212 flow [2021-03-11 02:39:41,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:39:41,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:39:41,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 733 transitions. [2021-03-11 02:39:41,589 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.894993894993895 [2021-03-11 02:39:41,589 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 733 transitions. [2021-03-11 02:39:41,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 733 transitions. [2021-03-11 02:39:41,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:39:41,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 733 transitions. [2021-03-11 02:39:41,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 81.44444444444444) internal successors, (733), 9 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:41,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 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) [2021-03-11 02:39:41,605 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 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) [2021-03-11 02:39:41,606 INFO L185 Difference]: Start difference. First operand has 85 places, 73 transitions, 158 flow. Second operand 9 states and 733 transitions. [2021-03-11 02:39:41,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 82 transitions, 212 flow [2021-03-11 02:39:41,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 82 transitions, 208 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-11 02:39:41,612 INFO L241 Difference]: Finished difference. Result has 96 places, 71 transitions, 170 flow [2021-03-11 02:39:41,614 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=170, PETRI_PLACES=96, PETRI_TRANSITIONS=71} [2021-03-11 02:39:41,614 INFO L335 CegarLoopForPetriNet]: 85 programPoint places, 11 predicate places. [2021-03-11 02:39:41,614 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 71 transitions, 170 flow [2021-03-11 02:39:41,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 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) [2021-03-11 02:39:41,615 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:39:41,615 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:39:41,615 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 02:39:41,615 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:39:41,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:39:41,616 INFO L82 PathProgramCache]: Analyzing trace with hash 940131380, now seen corresponding path program 1 times [2021-03-11 02:39:41,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:39:41,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502590132] [2021-03-11 02:39:41,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:39:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:39:41,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:41,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:41,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:41,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:41,700 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 02:39:41,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 02:39:41,717 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:39:41,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:39:41,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:41,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:41,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:41,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:41,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:41,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:41,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:39:41,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502590132] [2021-03-11 02:39:41,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:39:41,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:39:41,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857461544] [2021-03-11 02:39:41,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:39:41,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:39:41,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:39:41,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:39:41,788 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 91 [2021-03-11 02:39:41,790 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 71 transitions, 170 flow. Second operand has 7 states, 7 states have (on average 74.57142857142857) internal successors, (522), 7 states have internal predecessors, (522), 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) [2021-03-11 02:39:41,790 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:39:41,790 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 91 [2021-03-11 02:39:41,790 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:39:42,059 INFO L129 PetriNetUnfolder]: 81/309 cut-off events. [2021-03-11 02:39:42,059 INFO L130 PetriNetUnfolder]: For 71/154 co-relation queries the response was YES. [2021-03-11 02:39:42,065 INFO L84 FinitePrefix]: Finished finitePrefix Result has 561 conditions, 309 events. 81/309 cut-off events. For 71/154 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1401 event pairs, 30 based on Foata normal form. 8/305 useless extension candidates. Maximal degree in co-relation 523. Up to 61 conditions per place. [2021-03-11 02:39:42,067 INFO L132 encePairwiseOnDemand]: 85/91 looper letters, 15 selfloop transitions, 2 changer transitions 22/96 dead transitions. [2021-03-11 02:39:42,067 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 96 transitions, 319 flow [2021-03-11 02:39:42,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:39:42,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:39:42,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 698 transitions. [2021-03-11 02:39:42,072 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8522588522588522 [2021-03-11 02:39:42,072 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 698 transitions. [2021-03-11 02:39:42,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 698 transitions. [2021-03-11 02:39:42,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:39:42,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 698 transitions. [2021-03-11 02:39:42,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 77.55555555555556) internal successors, (698), 9 states have internal predecessors, (698), 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) [2021-03-11 02:39:42,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 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) [2021-03-11 02:39:42,078 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 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) [2021-03-11 02:39:42,078 INFO L185 Difference]: Start difference. First operand has 96 places, 71 transitions, 170 flow. Second operand 9 states and 698 transitions. [2021-03-11 02:39:42,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 96 transitions, 319 flow [2021-03-11 02:39:42,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 96 transitions, 285 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-03-11 02:39:42,087 INFO L241 Difference]: Finished difference. Result has 96 places, 71 transitions, 174 flow [2021-03-11 02:39:42,087 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=174, PETRI_PLACES=96, PETRI_TRANSITIONS=71} [2021-03-11 02:39:42,088 INFO L335 CegarLoopForPetriNet]: 85 programPoint places, 11 predicate places. [2021-03-11 02:39:42,088 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 71 transitions, 174 flow [2021-03-11 02:39:42,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 74.57142857142857) internal successors, (522), 7 states have internal predecessors, (522), 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) [2021-03-11 02:39:42,089 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:39:42,090 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:39:42,090 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 02:39:42,090 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:39:42,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:39:42,095 INFO L82 PathProgramCache]: Analyzing trace with hash 356434707, now seen corresponding path program 1 times [2021-03-11 02:39:42,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:39:42,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392767954] [2021-03-11 02:39:42,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:39:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:39:42,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:42,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:42,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:42,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:42,224 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:39:42,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:39:42,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:42,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:42,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:42,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:42,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:42,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:42,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:39:42,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392767954] [2021-03-11 02:39:42,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:39:42,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:39:42,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255313863] [2021-03-11 02:39:42,279 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:39:42,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:39:42,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:39:42,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:39:42,281 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 91 [2021-03-11 02:39:42,282 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 71 transitions, 174 flow. Second operand has 6 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 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) [2021-03-11 02:39:42,282 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:39:42,282 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 91 [2021-03-11 02:39:42,282 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:39:42,443 INFO L129 PetriNetUnfolder]: 3/86 cut-off events. [2021-03-11 02:39:42,443 INFO L130 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2021-03-11 02:39:42,444 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 86 events. 3/86 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 109 event pairs, 0 based on Foata normal form. 2/88 useless extension candidates. Maximal degree in co-relation 130. Up to 7 conditions per place. [2021-03-11 02:39:42,444 INFO L132 encePairwiseOnDemand]: 85/91 looper letters, 6 selfloop transitions, 2 changer transitions 10/81 dead transitions. [2021-03-11 02:39:42,444 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 81 transitions, 250 flow [2021-03-11 02:39:42,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:39:42,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:39:42,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 731 transitions. [2021-03-11 02:39:42,447 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8925518925518926 [2021-03-11 02:39:42,447 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 731 transitions. [2021-03-11 02:39:42,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 731 transitions. [2021-03-11 02:39:42,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:39:42,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 731 transitions. [2021-03-11 02:39:42,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 81.22222222222223) internal successors, (731), 9 states have internal predecessors, (731), 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) [2021-03-11 02:39:42,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 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) [2021-03-11 02:39:42,452 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 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) [2021-03-11 02:39:42,452 INFO L185 Difference]: Start difference. First operand has 96 places, 71 transitions, 174 flow. Second operand 9 states and 731 transitions. [2021-03-11 02:39:42,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 81 transitions, 250 flow [2021-03-11 02:39:42,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 81 transitions, 218 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-03-11 02:39:42,456 INFO L241 Difference]: Finished difference. Result has 97 places, 71 transitions, 178 flow [2021-03-11 02:39:42,456 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=178, PETRI_PLACES=97, PETRI_TRANSITIONS=71} [2021-03-11 02:39:42,457 INFO L335 CegarLoopForPetriNet]: 85 programPoint places, 12 predicate places. [2021-03-11 02:39:42,457 INFO L480 AbstractCegarLoop]: Abstraction has has 97 places, 71 transitions, 178 flow [2021-03-11 02:39:42,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 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) [2021-03-11 02:39:42,457 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:39:42,457 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:39:42,457 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 02:39:42,458 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:39:42,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:39:42,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1277029046, now seen corresponding path program 1 times [2021-03-11 02:39:42,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:39:42,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492553729] [2021-03-11 02:39:42,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:39:42,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:39:42,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:42,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:42,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:42,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:42,577 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:39:42,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:39:42,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:42,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:42,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:42,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:42,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:42,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:42,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:39:42,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492553729] [2021-03-11 02:39:42,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:39:42,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 02:39:42,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012138981] [2021-03-11 02:39:42,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 02:39:42,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:39:42,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 02:39:42,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 02:39:42,619 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 91 [2021-03-11 02:39:42,620 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 71 transitions, 178 flow. Second operand has 6 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 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) [2021-03-11 02:39:42,620 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:39:42,620 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 91 [2021-03-11 02:39:42,620 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:39:42,732 INFO L129 PetriNetUnfolder]: 3/94 cut-off events. [2021-03-11 02:39:42,732 INFO L130 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2021-03-11 02:39:42,732 INFO L84 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 94 events. 3/94 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 135 event pairs, 0 based on Foata normal form. 2/96 useless extension candidates. Maximal degree in co-relation 141. Up to 7 conditions per place. [2021-03-11 02:39:42,733 INFO L132 encePairwiseOnDemand]: 85/91 looper letters, 6 selfloop transitions, 2 changer transitions 10/81 dead transitions. [2021-03-11 02:39:42,733 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 81 transitions, 256 flow [2021-03-11 02:39:42,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 02:39:42,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 02:39:42,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 731 transitions. [2021-03-11 02:39:42,735 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8925518925518926 [2021-03-11 02:39:42,735 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 731 transitions. [2021-03-11 02:39:42,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 731 transitions. [2021-03-11 02:39:42,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:39:42,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 731 transitions. [2021-03-11 02:39:42,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 81.22222222222223) internal successors, (731), 9 states have internal predecessors, (731), 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) [2021-03-11 02:39:42,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 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) [2021-03-11 02:39:42,742 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 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) [2021-03-11 02:39:42,745 INFO L185 Difference]: Start difference. First operand has 97 places, 71 transitions, 178 flow. Second operand 9 states and 731 transitions. [2021-03-11 02:39:42,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 81 transitions, 256 flow [2021-03-11 02:39:42,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 81 transitions, 224 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-03-11 02:39:42,752 INFO L241 Difference]: Finished difference. Result has 98 places, 71 transitions, 182 flow [2021-03-11 02:39:42,752 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=182, PETRI_PLACES=98, PETRI_TRANSITIONS=71} [2021-03-11 02:39:42,752 INFO L335 CegarLoopForPetriNet]: 85 programPoint places, 13 predicate places. [2021-03-11 02:39:42,752 INFO L480 AbstractCegarLoop]: Abstraction has has 98 places, 71 transitions, 182 flow [2021-03-11 02:39:42,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 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) [2021-03-11 02:39:42,752 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:39:42,753 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:39:42,753 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 02:39:42,753 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:39:42,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:39:42,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1909574967, now seen corresponding path program 1 times [2021-03-11 02:39:42,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:39:42,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979336788] [2021-03-11 02:39:42,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:39:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:39:42,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:42,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:42,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:42,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:42,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:42,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:42,847 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:39:42,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:39:42,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:42,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:42,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:42,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:42,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:42,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:42,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:39:42,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979336788] [2021-03-11 02:39:42,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:39:42,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:39:42,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763289139] [2021-03-11 02:39:42,888 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:39:42,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:39:42,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:39:42,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:39:42,892 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 91 [2021-03-11 02:39:42,893 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 71 transitions, 182 flow. Second operand has 7 states, 7 states have (on average 78.28571428571429) internal successors, (548), 7 states have internal predecessors, (548), 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) [2021-03-11 02:39:42,893 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:39:42,893 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 91 [2021-03-11 02:39:42,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:39:43,023 INFO L129 PetriNetUnfolder]: 4/92 cut-off events. [2021-03-11 02:39:43,023 INFO L130 PetriNetUnfolder]: For 47/54 co-relation queries the response was YES. [2021-03-11 02:39:43,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 92 events. 4/92 cut-off events. For 47/54 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 143 event pairs, 0 based on Foata normal form. 2/94 useless extension candidates. Maximal degree in co-relation 152. Up to 7 conditions per place. [2021-03-11 02:39:43,024 INFO L132 encePairwiseOnDemand]: 83/91 looper letters, 6 selfloop transitions, 4 changer transitions 12/83 dead transitions. [2021-03-11 02:39:43,024 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 83 transitions, 283 flow [2021-03-11 02:39:43,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 02:39:43,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 02:39:43,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 794 transitions. [2021-03-11 02:39:43,026 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8725274725274725 [2021-03-11 02:39:43,027 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 794 transitions. [2021-03-11 02:39:43,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 794 transitions. [2021-03-11 02:39:43,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:39:43,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 794 transitions. [2021-03-11 02:39:43,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.4) internal successors, (794), 10 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:43,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 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) [2021-03-11 02:39:43,032 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 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) [2021-03-11 02:39:43,032 INFO L185 Difference]: Start difference. First operand has 98 places, 71 transitions, 182 flow. Second operand 10 states and 794 transitions. [2021-03-11 02:39:43,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 83 transitions, 283 flow [2021-03-11 02:39:43,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 83 transitions, 251 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-03-11 02:39:43,035 INFO L241 Difference]: Finished difference. Result has 101 places, 71 transitions, 196 flow [2021-03-11 02:39:43,035 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=196, PETRI_PLACES=101, PETRI_TRANSITIONS=71} [2021-03-11 02:39:43,035 INFO L335 CegarLoopForPetriNet]: 85 programPoint places, 16 predicate places. [2021-03-11 02:39:43,036 INFO L480 AbstractCegarLoop]: Abstraction has has 101 places, 71 transitions, 196 flow [2021-03-11 02:39:43,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 78.28571428571429) internal successors, (548), 7 states have internal predecessors, (548), 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) [2021-03-11 02:39:43,036 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:39:43,036 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:39:43,036 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 02:39:43,037 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:39:43,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:39:43,037 INFO L82 PathProgramCache]: Analyzing trace with hash 287543185, now seen corresponding path program 1 times [2021-03-11 02:39:43,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:39:43,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008840407] [2021-03-11 02:39:43,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:39:43,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:39:43,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:43,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:43,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:43,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:43,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:43,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:43,123 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:39:43,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:39:43,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:43,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:43,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:43,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:43,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:43,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:43,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:39:43,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008840407] [2021-03-11 02:39:43,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:39:43,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:39:43,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001317602] [2021-03-11 02:39:43,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:39:43,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:39:43,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:39:43,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:39:43,164 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 91 [2021-03-11 02:39:43,164 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 71 transitions, 196 flow. Second operand has 7 states, 7 states have (on average 78.28571428571429) internal successors, (548), 7 states have internal predecessors, (548), 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) [2021-03-11 02:39:43,164 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:39:43,165 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 91 [2021-03-11 02:39:43,165 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:39:43,345 INFO L129 PetriNetUnfolder]: 4/92 cut-off events. [2021-03-11 02:39:43,345 INFO L130 PetriNetUnfolder]: For 143/155 co-relation queries the response was YES. [2021-03-11 02:39:43,346 INFO L84 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 92 events. 4/92 cut-off events. For 143/155 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 155 event pairs, 0 based on Foata normal form. 2/94 useless extension candidates. Maximal degree in co-relation 163. Up to 7 conditions per place. [2021-03-11 02:39:43,346 INFO L132 encePairwiseOnDemand]: 83/91 looper letters, 6 selfloop transitions, 4 changer transitions 12/83 dead transitions. [2021-03-11 02:39:43,346 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 83 transitions, 305 flow [2021-03-11 02:39:43,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 02:39:43,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 02:39:43,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 794 transitions. [2021-03-11 02:39:43,348 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8725274725274725 [2021-03-11 02:39:43,348 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 794 transitions. [2021-03-11 02:39:43,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 794 transitions. [2021-03-11 02:39:43,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:39:43,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 794 transitions. [2021-03-11 02:39:43,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.4) internal successors, (794), 10 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:43,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 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) [2021-03-11 02:39:43,352 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 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) [2021-03-11 02:39:43,352 INFO L185 Difference]: Start difference. First operand has 101 places, 71 transitions, 196 flow. Second operand 10 states and 794 transitions. [2021-03-11 02:39:43,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 83 transitions, 305 flow [2021-03-11 02:39:43,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 83 transitions, 255 flow, removed 20 selfloop flow, removed 10 redundant places. [2021-03-11 02:39:43,355 INFO L241 Difference]: Finished difference. Result has 102 places, 71 transitions, 200 flow [2021-03-11 02:39:43,355 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=200, PETRI_PLACES=102, PETRI_TRANSITIONS=71} [2021-03-11 02:39:43,355 INFO L335 CegarLoopForPetriNet]: 85 programPoint places, 17 predicate places. [2021-03-11 02:39:43,355 INFO L480 AbstractCegarLoop]: Abstraction has has 102 places, 71 transitions, 200 flow [2021-03-11 02:39:43,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 78.28571428571429) internal successors, (548), 7 states have internal predecessors, (548), 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) [2021-03-11 02:39:43,355 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:39:43,355 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:39:43,355 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 02:39:43,356 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:39:43,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:39:43,356 INFO L82 PathProgramCache]: Analyzing trace with hash -84021759, now seen corresponding path program 1 times [2021-03-11 02:39:43,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:39:43,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400543710] [2021-03-11 02:39:43,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:39:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:39:43,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:43,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:43,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:43,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:43,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:43,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:43,396 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:39:43,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:39:43,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:43,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:43,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:43,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:43,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:43,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:43,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:39:43,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400543710] [2021-03-11 02:39:43,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:39:43,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:39:43,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307433102] [2021-03-11 02:39:43,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:39:43,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:39:43,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:39:43,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:39:43,460 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 91 [2021-03-11 02:39:43,461 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 71 transitions, 200 flow. Second operand has 7 states, 7 states have (on average 78.28571428571429) internal successors, (548), 7 states have internal predecessors, (548), 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) [2021-03-11 02:39:43,461 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:39:43,461 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 91 [2021-03-11 02:39:43,461 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:39:43,613 INFO L129 PetriNetUnfolder]: 4/97 cut-off events. [2021-03-11 02:39:43,613 INFO L130 PetriNetUnfolder]: For 74/78 co-relation queries the response was YES. [2021-03-11 02:39:43,614 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 97 events. 4/97 cut-off events. For 74/78 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 162 event pairs, 0 based on Foata normal form. 3/99 useless extension candidates. Maximal degree in co-relation 175. Up to 7 conditions per place. [2021-03-11 02:39:43,614 INFO L132 encePairwiseOnDemand]: 83/91 looper letters, 6 selfloop transitions, 4 changer transitions 12/83 dead transitions. [2021-03-11 02:39:43,614 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 83 transitions, 309 flow [2021-03-11 02:39:43,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 02:39:43,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 02:39:43,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 794 transitions. [2021-03-11 02:39:43,616 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8725274725274725 [2021-03-11 02:39:43,616 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 794 transitions. [2021-03-11 02:39:43,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 794 transitions. [2021-03-11 02:39:43,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:39:43,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 794 transitions. [2021-03-11 02:39:43,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.4) internal successors, (794), 10 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 02:39:43,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 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) [2021-03-11 02:39:43,621 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 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) [2021-03-11 02:39:43,621 INFO L185 Difference]: Start difference. First operand has 102 places, 71 transitions, 200 flow. Second operand 10 states and 794 transitions. [2021-03-11 02:39:43,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 83 transitions, 309 flow [2021-03-11 02:39:43,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 83 transitions, 259 flow, removed 20 selfloop flow, removed 10 redundant places. [2021-03-11 02:39:43,624 INFO L241 Difference]: Finished difference. Result has 103 places, 71 transitions, 204 flow [2021-03-11 02:39:43,625 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=204, PETRI_PLACES=103, PETRI_TRANSITIONS=71} [2021-03-11 02:39:43,625 INFO L335 CegarLoopForPetriNet]: 85 programPoint places, 18 predicate places. [2021-03-11 02:39:43,625 INFO L480 AbstractCegarLoop]: Abstraction has has 103 places, 71 transitions, 204 flow [2021-03-11 02:39:43,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 78.28571428571429) internal successors, (548), 7 states have internal predecessors, (548), 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) [2021-03-11 02:39:43,625 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 02:39:43,625 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 02:39:43,625 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 02:39:43,626 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 02:39:43,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 02:39:43,626 INFO L82 PathProgramCache]: Analyzing trace with hash -825080303, now seen corresponding path program 1 times [2021-03-11 02:39:43,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 02:39:43,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726568746] [2021-03-11 02:39:43,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 02:39:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 02:39:43,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:43,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:43,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:43,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:43,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:43,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 02:39:43,692 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-11 02:39:43,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 02:39:43,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:43,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:43,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:43,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 02:39:43,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 02:39:43,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 02:39:43,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 02:39:43,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726568746] [2021-03-11 02:39:43,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 02:39:43,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 02:39:43,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564076674] [2021-03-11 02:39:43,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 02:39:43,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 02:39:43,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 02:39:43,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-11 02:39:43,732 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 91 [2021-03-11 02:39:43,733 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 71 transitions, 204 flow. Second operand has 7 states, 7 states have (on average 78.28571428571429) internal successors, (548), 7 states have internal predecessors, (548), 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) [2021-03-11 02:39:43,733 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 02:39:43,733 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 91 [2021-03-11 02:39:43,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 02:39:43,860 INFO L129 PetriNetUnfolder]: 4/86 cut-off events. [2021-03-11 02:39:43,860 INFO L130 PetriNetUnfolder]: For 58/58 co-relation queries the response was YES. [2021-03-11 02:39:43,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 86 events. 4/86 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 0 based on Foata normal form. 2/88 useless extension candidates. Maximal degree in co-relation 146. Up to 5 conditions per place. [2021-03-11 02:39:43,861 INFO L132 encePairwiseOnDemand]: 84/91 looper letters, 0 selfloop transitions, 0 changer transitions 76/76 dead transitions. [2021-03-11 02:39:43,861 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 76 transitions, 262 flow [2021-03-11 02:39:43,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 02:39:43,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 02:39:43,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 788 transitions. [2021-03-11 02:39:43,863 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.865934065934066 [2021-03-11 02:39:43,863 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 788 transitions. [2021-03-11 02:39:43,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 788 transitions. [2021-03-11 02:39:43,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 02:39:43,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 788 transitions. [2021-03-11 02:39:43,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 78.8) internal successors, (788), 10 states have internal predecessors, (788), 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) [2021-03-11 02:39:43,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 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) [2021-03-11 02:39:43,868 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 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) [2021-03-11 02:39:43,868 INFO L185 Difference]: Start difference. First operand has 103 places, 71 transitions, 204 flow. Second operand 10 states and 788 transitions. [2021-03-11 02:39:43,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 76 transitions, 262 flow [2021-03-11 02:39:43,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 76 transitions, 216 flow, removed 16 selfloop flow, removed 10 redundant places. [2021-03-11 02:39:43,870 INFO L241 Difference]: Finished difference. Result has 94 places, 0 transitions, 0 flow [2021-03-11 02:39:43,870 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=94, PETRI_TRANSITIONS=0} [2021-03-11 02:39:43,870 INFO L335 CegarLoopForPetriNet]: 85 programPoint places, 9 predicate places. [2021-03-11 02:39:43,870 INFO L480 AbstractCegarLoop]: Abstraction has has 94 places, 0 transitions, 0 flow [2021-03-11 02:39:43,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 78.28571428571429) internal successors, (548), 7 states have internal predecessors, (548), 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) [2021-03-11 02:39:43,871 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 02:39:43,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 02:39:43 BasicIcfg [2021-03-11 02:39:43,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 02:39:43,876 INFO L168 Benchmark]: Toolchain (without parser) took 4103.59 ms. Allocated memory was 356.5 MB in the beginning and 442.5 MB in the end (delta: 86.0 MB). Free memory was 320.5 MB in the beginning and 401.8 MB in the end (delta: -81.3 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.0 GB. [2021-03-11 02:39:43,877 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 356.5 MB. Free memory was 338.3 MB in the beginning and 338.3 MB in the end (delta: 69.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 02:39:43,880 INFO L168 Benchmark]: CACSL2BoogieTranslator took 432.58 ms. Allocated memory is still 356.5 MB. Free memory was 319.9 MB in the beginning and 321.0 MB in the end (delta: -1.1 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.0 GB. [2021-03-11 02:39:43,880 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.47 ms. Allocated memory is still 356.5 MB. Free memory was 321.0 MB in the beginning and 318.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 02:39:43,881 INFO L168 Benchmark]: Boogie Preprocessor took 32.29 ms. Allocated memory is still 356.5 MB. Free memory was 318.9 MB in the beginning and 316.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 02:39:43,882 INFO L168 Benchmark]: RCFGBuilder took 505.67 ms. Allocated memory is still 356.5 MB. Free memory was 316.8 MB in the beginning and 291.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-11 02:39:43,884 INFO L168 Benchmark]: TraceAbstraction took 3069.37 ms. Allocated memory was 356.5 MB in the beginning and 442.5 MB in the end (delta: 86.0 MB). Free memory was 290.5 MB in the beginning and 401.8 MB in the end (delta: -111.3 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 02:39:43,888 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 356.5 MB. Free memory was 338.3 MB in the beginning and 338.3 MB in the end (delta: 69.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 432.58 ms. Allocated memory is still 356.5 MB. Free memory was 319.9 MB in the beginning and 321.0 MB in the end (delta: -1.1 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 53.47 ms. Allocated memory is still 356.5 MB. Free memory was 321.0 MB in the beginning and 318.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.29 ms. Allocated memory is still 356.5 MB. Free memory was 318.9 MB in the beginning and 316.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 505.67 ms. Allocated memory is still 356.5 MB. Free memory was 316.8 MB in the beginning and 291.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3069.37 ms. Allocated memory was 356.5 MB in the beginning and 442.5 MB in the end (delta: 86.0 MB). Free memory was 290.5 MB in the beginning and 401.8 MB in the end (delta: -111.3 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 17.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2975.6ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1491.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 52.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 86 SDtfs, 183 SDslu, 238 SDs, 0 SdLazy, 203 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 195.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1214.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=204occurred in iteration=7, InterpolantAutomatonStates: 76, 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: 30.9ms SsaConstructionTime, 177.0ms SatisfiabilityAnalysisTime, 993.0ms InterpolantComputationTime, 426 NumberOfCodeBlocks, 426 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 418 ConstructedInterpolants, 0 QuantifiedInterpolants, 1248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...