/usr/bin/java -Xmx8000000000 -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/concurrent/pthreads/forkFork.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 08:12:39,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 08:12:39,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 08:12:40,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-13 08:12:40,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-13 08:12:40,024 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-13 08:12:40,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-13 08:12:40,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-13 08:12:40,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-13 08:12:40,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-13 08:12:40,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-13 08:12:40,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-13 08:12:40,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-13 08:12:40,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-13 08:12:40,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-13 08:12:40,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-13 08:12:40,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-13 08:12:40,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-13 08:12:40,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-13 08:12:40,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-13 08:12:40,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-13 08:12:40,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-13 08:12:40,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-13 08:12:40,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-13 08:12:40,068 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-13 08:12:40,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-13 08:12:40,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-13 08:12:40,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-13 08:12:40,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-13 08:12:40,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-13 08:12:40,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-13 08:12:40,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-13 08:12:40,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-13 08:12:40,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-13 08:12:40,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-13 08:12:40,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-13 08:12:40,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-13 08:12:40,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-13 08:12:40,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-13 08:12:40,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-13 08:12:40,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-13 08:12:40,080 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 [2021-06-13 08:12:40,140 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 08:12:40,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 08:12:40,143 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 08:12:40,143 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 08:12:40,144 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 08:12:40,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 08:12:40,144 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 08:12:40,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 08:12:40,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 08:12:40,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 08:12:40,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 08:12:40,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 08:12:40,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 08:12:40,146 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 08:12:40,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 08:12:40,146 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 08:12:40,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 08:12:40,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 08:12:40,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 08:12:40,147 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 08:12:40,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 08:12:40,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 08:12:40,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 08:12:40,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 08:12:40,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 08:12:40,148 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 08:12:40,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 08:12:40,149 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 08:12:40,149 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-13 08:12:40,149 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 08:12:40,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 08:12:40,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 08:12:40,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 08:12:40,571 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-13 08:12:40,572 INFO L275 PluginConnector]: CDTParser initialized [2021-06-13 08:12:40,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkFork.c [2021-06-13 08:12:40,630 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/786749053/1f54c9d3f059450cafd989b8329ed075/FLAG2ff9bdd44 [2021-06-13 08:12:41,171 INFO L306 CDTParser]: Found 1 translation units. [2021-06-13 08:12:41,172 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkFork.c [2021-06-13 08:12:41,172 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-13 08:12:41,172 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-13 08:12:41,206 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/786749053/1f54c9d3f059450cafd989b8329ed075/FLAG2ff9bdd44 [2021-06-13 08:12:41,506 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/786749053/1f54c9d3f059450cafd989b8329ed075 [2021-06-13 08:12:41,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 08:12:41,526 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-13 08:12:41,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-13 08:12:41,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-13 08:12:41,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-13 08:12:41,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 08:12:41" (1/1) ... [2021-06-13 08:12:41,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c6ceeea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:12:41, skipping insertion in model container [2021-06-13 08:12:41,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 08:12:41" (1/1) ... [2021-06-13 08:12:41,538 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-13 08:12:41,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-13 08:12:41,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 08:12:41,755 INFO L203 MainTranslator]: Completed pre-run [2021-06-13 08:12:41,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 08:12:41,795 INFO L208 MainTranslator]: Completed translation [2021-06-13 08:12:41,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:12:41 WrapperNode [2021-06-13 08:12:41,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-13 08:12:41,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 08:12:41,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 08:12:41,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 08:12:41,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:12:41" (1/1) ... [2021-06-13 08:12:41,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:12:41" (1/1) ... [2021-06-13 08:12:41,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 08:12:41,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 08:12:41,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 08:12:41,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 08:12:41,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:12:41" (1/1) ... [2021-06-13 08:12:41,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:12:41" (1/1) ... [2021-06-13 08:12:41,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:12:41" (1/1) ... [2021-06-13 08:12:41,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:12:41" (1/1) ... [2021-06-13 08:12:41,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:12:41" (1/1) ... [2021-06-13 08:12:41,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:12:41" (1/1) ... [2021-06-13 08:12:41,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:12:41" (1/1) ... [2021-06-13 08:12:41,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 08:12:41,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 08:12:41,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 08:12:41,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 08:12:41,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:12:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 08:12:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-06-13 08:12:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-13 08:12:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2021-06-13 08:12:41,959 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2021-06-13 08:12:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-13 08:12:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-13 08:12:41,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 08:12:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 08:12:41,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-13 08:12:41,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-13 08:12:41,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-06-13 08:12:41,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-13 08:12:41,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-13 08:12:41,962 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 08:12:42,353 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 08:12:42,355 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-13 08:12:42,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 08:12:42 BoogieIcfgContainer [2021-06-13 08:12:42,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 08:12:42,358 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 08:12:42,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 08:12:42,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 08:12:42,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.06 08:12:41" (1/3) ... [2021-06-13 08:12:42,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db23d35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 08:12:42, skipping insertion in model container [2021-06-13 08:12:42,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:12:41" (2/3) ... [2021-06-13 08:12:42,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db23d35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 08:12:42, skipping insertion in model container [2021-06-13 08:12:42,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 08:12:42" (3/3) ... [2021-06-13 08:12:42,363 INFO L111 eAbstractionObserver]: Analyzing ICFG forkFork.c [2021-06-13 08:12:42,368 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 08:12:42,368 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-06-13 08:12:42,369 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 08:12:42,421 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,421 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,421 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,421 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,422 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,422 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,422 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,422 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,423 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,423 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,423 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,423 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,423 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,424 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,424 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,424 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,424 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,424 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,425 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,425 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,425 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,425 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,426 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,426 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,426 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,426 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,427 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,427 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,427 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,427 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,429 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,429 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,429 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,429 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,429 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,430 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,430 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,430 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,430 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,430 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,430 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,431 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,431 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,431 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,433 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,433 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,433 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,434 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,434 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,434 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,434 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,434 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,434 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,434 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,437 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,437 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,438 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,438 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,438 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,438 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,438 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,438 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,441 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,441 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,441 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,441 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,442 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,442 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,442 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,442 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,442 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,443 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,443 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,443 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,443 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,444 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,444 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,444 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,444 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,445 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,445 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,445 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,446 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,446 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,446 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,446 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,447 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,447 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,447 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,447 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,448 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,448 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,448 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,448 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,448 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,448 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,449 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,449 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,449 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,450 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,452 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,454 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,454 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,454 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,457 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,461 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,461 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,461 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,462 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,462 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,462 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,462 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,462 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,462 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,462 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,462 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,463 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,463 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,463 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,463 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,463 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,463 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,463 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,463 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,463 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,463 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,464 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,464 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,464 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,464 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,464 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,464 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,464 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,464 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,465 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,465 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,465 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,465 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,465 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,465 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,465 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,465 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,467 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,467 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,468 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,468 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,468 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,468 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,468 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,468 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,468 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,480 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,481 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,481 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,481 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,481 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,481 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,481 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,481 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,481 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,482 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,482 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,482 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,482 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,482 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,482 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,482 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,482 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,490 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,490 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,491 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,491 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,491 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,491 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,491 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,491 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,491 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:12:42,547 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-06-13 08:12:42,568 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-13 08:12:42,597 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 08:12:42,598 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 08:12:42,598 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 08:12:42,598 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 08:12:42,598 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 08:12:42,598 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 08:12:42,598 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 08:12:42,598 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == fooThread1of1ForFork1======== [2021-06-13 08:12:42,613 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 89 transitions, 206 flow [2021-06-13 08:12:42,645 INFO L129 PetriNetUnfolder]: 2/95 cut-off events. [2021-06-13 08:12:42,645 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-13 08:12:42,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 95 events. 2/95 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 58 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 68. Up to 5 conditions per place. [2021-06-13 08:12:42,648 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 89 transitions, 206 flow [2021-06-13 08:12:42,650 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2021-06-13 08:12:42,650 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-13 08:12:42,650 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 08:12:42,651 INFO L301 ceAbstractionStarter]: Result for error location fooThread1of1ForFork1 was SAFE (1/5) [2021-06-13 08:12:42,653 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-13 08:12:42,655 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 08:12:42,655 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 08:12:42,655 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 08:12:42,655 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 08:12:42,655 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 08:12:42,655 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 08:12:42,655 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 08:12:42,655 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == bar======== [2021-06-13 08:12:42,658 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 89 transitions, 206 flow [2021-06-13 08:12:42,675 INFO L129 PetriNetUnfolder]: 2/95 cut-off events. [2021-06-13 08:12:42,675 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-13 08:12:42,676 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 95 events. 2/95 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 58 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 68. Up to 5 conditions per place. [2021-06-13 08:12:42,676 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 89 transitions, 206 flow [2021-06-13 08:12:42,676 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2021-06-13 08:12:42,677 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-13 08:12:42,677 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 08:12:42,677 INFO L301 ceAbstractionStarter]: Result for error location bar was SAFE (2/5) [2021-06-13 08:12:42,677 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-13 08:12:42,679 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 08:12:42,679 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 08:12:42,679 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 08:12:42,679 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 08:12:42,679 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 08:12:42,679 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 08:12:42,679 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 08:12:42,679 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == foo======== [2021-06-13 08:12:42,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 89 transitions, 206 flow [2021-06-13 08:12:42,697 INFO L129 PetriNetUnfolder]: 2/95 cut-off events. [2021-06-13 08:12:42,697 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-13 08:12:42,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 95 events. 2/95 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 58 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 68. Up to 5 conditions per place. [2021-06-13 08:12:42,698 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 89 transitions, 206 flow [2021-06-13 08:12:42,698 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2021-06-13 08:12:42,698 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-13 08:12:42,699 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 08:12:42,699 INFO L301 ceAbstractionStarter]: Result for error location foo was SAFE (3/5) [2021-06-13 08:12:42,699 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-13 08:12:42,701 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 08:12:42,701 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 08:12:42,701 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 08:12:42,701 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 08:12:42,701 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 08:12:42,701 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 08:12:42,701 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 08:12:42,701 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 08:12:42,703 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 89 transitions, 206 flow [2021-06-13 08:12:42,722 INFO L129 PetriNetUnfolder]: 2/95 cut-off events. [2021-06-13 08:12:42,723 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-13 08:12:42,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 95 events. 2/95 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 58 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 68. Up to 5 conditions per place. [2021-06-13 08:12:42,723 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 89 transitions, 206 flow [2021-06-13 08:12:42,725 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 64 transitions, 149 flow [2021-06-13 08:12:42,738 INFO L129 PetriNetUnfolder]: 2/62 cut-off events. [2021-06-13 08:12:42,738 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-13 08:12:42,738 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:12:42,739 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] [2021-06-13 08:12:42,739 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:12:42,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:12:42,744 INFO L82 PathProgramCache]: Analyzing trace with hash 982709772, now seen corresponding path program 1 times [2021-06-13 08:12:42,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:12:42,752 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206804588] [2021-06-13 08:12:42,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:12:42,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:12:43,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:43,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:12:43,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:43,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:12:43,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:43,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:12:43,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:43,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 08:12:43,147 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-06-13 08:12:43,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-13 08:12:43,200 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.8 percent of original size [2021-06-13 08:12:43,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-06-13 08:12:43,325 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-13 08:12:43,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-06-13 08:12:43,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:43,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:12:43,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:12:43,449 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:12:43,449 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206804588] [2021-06-13 08:12:43,450 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206804588] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:12:43,450 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:12:43,450 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-13 08:12:43,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965078443] [2021-06-13 08:12:43,456 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 08:12:43,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:12:43,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 08:12:43,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-13 08:12:43,470 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 92 [2021-06-13 08:12:43,474 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 64 transitions, 149 flow. Second operand has 8 states, 8 states have (on average 62.5) internal successors, (500), 8 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:43,475 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:12:43,475 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 92 [2021-06-13 08:12:43,476 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:12:44,016 INFO L129 PetriNetUnfolder]: 73/317 cut-off events. [2021-06-13 08:12:44,016 INFO L130 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2021-06-13 08:12:44,018 INFO L84 FinitePrefix]: Finished finitePrefix Result has 515 conditions, 317 events. 73/317 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1257 event pairs, 29 based on Foata normal form. 3/303 useless extension candidates. Maximal degree in co-relation 466. Up to 133 conditions per place. [2021-06-13 08:12:44,021 INFO L132 encePairwiseOnDemand]: 80/92 looper letters, 37 selfloop transitions, 13 changer transitions 0/87 dead transitions. [2021-06-13 08:12:44,022 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 87 transitions, 307 flow [2021-06-13 08:12:44,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 08:12:44,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-13 08:12:44,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 714 transitions. [2021-06-13 08:12:44,038 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7055335968379447 [2021-06-13 08:12:44,039 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 714 transitions. [2021-06-13 08:12:44,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 714 transitions. [2021-06-13 08:12:44,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:12:44,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 714 transitions. [2021-06-13 08:12:44,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 64.9090909090909) internal successors, (714), 11 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:44,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 92.0) internal successors, (1104), 12 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:44,056 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 92.0) internal successors, (1104), 12 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:44,057 INFO L185 Difference]: Start difference. First operand has 68 places, 64 transitions, 149 flow. Second operand 11 states and 714 transitions. [2021-06-13 08:12:44,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 87 transitions, 307 flow [2021-06-13 08:12:44,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 87 transitions, 285 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-13 08:12:44,064 INFO L241 Difference]: Finished difference. Result has 80 places, 73 transitions, 215 flow [2021-06-13 08:12:44,066 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=215, PETRI_PLACES=80, PETRI_TRANSITIONS=73} [2021-06-13 08:12:44,067 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 12 predicate places. [2021-06-13 08:12:44,067 INFO L482 AbstractCegarLoop]: Abstraction has has 80 places, 73 transitions, 215 flow [2021-06-13 08:12:44,067 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 62.5) internal successors, (500), 8 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:44,067 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:12:44,068 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] [2021-06-13 08:12:44,068 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-13 08:12:44,068 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:12:44,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:12:44,068 INFO L82 PathProgramCache]: Analyzing trace with hash 408294990, now seen corresponding path program 2 times [2021-06-13 08:12:44,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:12:44,069 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143324359] [2021-06-13 08:12:44,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:12:44,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:12:44,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:44,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:12:44,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:44,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:12:44,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:44,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:12:44,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:44,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 08:12:44,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:44,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 08:12:44,254 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.8 percent of original size [2021-06-13 08:12:44,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-06-13 08:12:44,358 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-13 08:12:44,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-06-13 08:12:44,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:44,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:12:44,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:12:44,439 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:12:44,439 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143324359] [2021-06-13 08:12:44,440 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143324359] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:12:44,440 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:12:44,440 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-13 08:12:44,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117915391] [2021-06-13 08:12:44,441 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 08:12:44,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:12:44,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 08:12:44,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-13 08:12:44,443 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 92 [2021-06-13 08:12:44,444 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 73 transitions, 215 flow. Second operand has 8 states, 8 states have (on average 62.5) internal successors, (500), 8 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:44,444 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:12:44,444 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 92 [2021-06-13 08:12:44,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:12:44,792 INFO L129 PetriNetUnfolder]: 80/358 cut-off events. [2021-06-13 08:12:44,792 INFO L130 PetriNetUnfolder]: For 118/126 co-relation queries the response was YES. [2021-06-13 08:12:44,795 INFO L84 FinitePrefix]: Finished finitePrefix Result has 672 conditions, 358 events. 80/358 cut-off events. For 118/126 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1584 event pairs, 46 based on Foata normal form. 4/343 useless extension candidates. Maximal degree in co-relation 500. Up to 152 conditions per place. [2021-06-13 08:12:44,797 INFO L132 encePairwiseOnDemand]: 79/92 looper letters, 38 selfloop transitions, 19 changer transitions 0/94 dead transitions. [2021-06-13 08:12:44,798 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 94 transitions, 395 flow [2021-06-13 08:12:44,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-13 08:12:44,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-06-13 08:12:44,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 896 transitions. [2021-06-13 08:12:44,802 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6956521739130435 [2021-06-13 08:12:44,802 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 896 transitions. [2021-06-13 08:12:44,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 896 transitions. [2021-06-13 08:12:44,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:12:44,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 896 transitions. [2021-06-13 08:12:44,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 64.0) internal successors, (896), 14 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:44,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 92.0) internal successors, (1380), 15 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:44,808 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 92.0) internal successors, (1380), 15 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:44,809 INFO L185 Difference]: Start difference. First operand has 80 places, 73 transitions, 215 flow. Second operand 14 states and 896 transitions. [2021-06-13 08:12:44,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 94 transitions, 395 flow [2021-06-13 08:12:44,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 94 transitions, 386 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-13 08:12:44,816 INFO L241 Difference]: Finished difference. Result has 95 places, 81 transitions, 314 flow [2021-06-13 08:12:44,817 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=314, PETRI_PLACES=95, PETRI_TRANSITIONS=81} [2021-06-13 08:12:44,817 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 27 predicate places. [2021-06-13 08:12:44,817 INFO L482 AbstractCegarLoop]: Abstraction has has 95 places, 81 transitions, 314 flow [2021-06-13 08:12:44,818 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 62.5) internal successors, (500), 8 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:44,819 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:12:44,819 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] [2021-06-13 08:12:44,819 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-13 08:12:44,819 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:12:44,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:12:44,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1206775236, now seen corresponding path program 3 times [2021-06-13 08:12:44,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:12:44,820 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118216878] [2021-06-13 08:12:44,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:12:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:12:44,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:44,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:12:44,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:44,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:12:44,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:44,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 08:12:44,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:44,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 08:12:44,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:44,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 08:12:44,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:44,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 08:12:44,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:44,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 08:12:45,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:45,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 08:12:45,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:45,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-13 08:12:45,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:45,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 08:12:45,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:45,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 08:12:45,076 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-13 08:12:45,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-06-13 08:12:45,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:45,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:12:45,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:12:45,137 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:12:45,137 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118216878] [2021-06-13 08:12:45,137 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118216878] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:12:45,137 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:12:45,137 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-06-13 08:12:45,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221789527] [2021-06-13 08:12:45,138 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-13 08:12:45,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:12:45,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-13 08:12:45,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-06-13 08:12:45,142 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 92 [2021-06-13 08:12:45,143 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 81 transitions, 314 flow. Second operand has 13 states, 13 states have (on average 48.92307692307692) internal successors, (636), 13 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:45,143 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:12:45,143 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 92 [2021-06-13 08:12:45,143 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:12:45,762 INFO L129 PetriNetUnfolder]: 126/503 cut-off events. [2021-06-13 08:12:45,762 INFO L130 PetriNetUnfolder]: For 339/339 co-relation queries the response was YES. [2021-06-13 08:12:45,763 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1064 conditions, 503 events. 126/503 cut-off events. For 339/339 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2486 event pairs, 0 based on Foata normal form. 3/490 useless extension candidates. Maximal degree in co-relation 859. Up to 88 conditions per place. [2021-06-13 08:12:45,765 INFO L132 encePairwiseOnDemand]: 75/92 looper letters, 67 selfloop transitions, 33 changer transitions 0/129 dead transitions. [2021-06-13 08:12:45,766 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 129 transitions, 679 flow [2021-06-13 08:12:45,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-13 08:12:45,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-06-13 08:12:45,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 982 transitions. [2021-06-13 08:12:45,770 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5617848970251716 [2021-06-13 08:12:45,770 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 982 transitions. [2021-06-13 08:12:45,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 982 transitions. [2021-06-13 08:12:45,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:12:45,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 982 transitions. [2021-06-13 08:12:45,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 51.68421052631579) internal successors, (982), 19 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:45,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 92.0) internal successors, (1840), 20 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:45,776 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 92.0) internal successors, (1840), 20 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:45,776 INFO L185 Difference]: Start difference. First operand has 95 places, 81 transitions, 314 flow. Second operand 19 states and 982 transitions. [2021-06-13 08:12:45,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 129 transitions, 679 flow [2021-06-13 08:12:45,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 129 transitions, 642 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-06-13 08:12:45,782 INFO L241 Difference]: Finished difference. Result has 112 places, 94 transitions, 444 flow [2021-06-13 08:12:45,782 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=444, PETRI_PLACES=112, PETRI_TRANSITIONS=94} [2021-06-13 08:12:45,782 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 44 predicate places. [2021-06-13 08:12:45,782 INFO L482 AbstractCegarLoop]: Abstraction has has 112 places, 94 transitions, 444 flow [2021-06-13 08:12:45,783 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 48.92307692307692) internal successors, (636), 13 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:45,783 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:12:45,783 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] [2021-06-13 08:12:45,783 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-13 08:12:45,783 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:12:45,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:12:45,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1225944039, now seen corresponding path program 1 times [2021-06-13 08:12:45,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:12:45,784 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759296060] [2021-06-13 08:12:45,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:12:45,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:12:45,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:45,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:12:45,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:45,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:12:45,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:45,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 08:12:45,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:45,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:12:45,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:45,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 08:12:45,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:45,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-13 08:12:45,922 INFO L142 QuantifierPusher]: treesize reduction 10, result has 70.6 percent of original size [2021-06-13 08:12:45,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 08:12:45,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:45,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-13 08:12:45,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:45,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-13 08:12:45,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:45,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-13 08:12:45,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:45,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-13 08:12:45,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:45,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-06-13 08:12:46,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:46,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 08:12:46,041 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-06-13 08:12:46,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-06-13 08:12:46,098 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-13 08:12:46,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-13 08:12:46,158 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-13 08:12:46,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-13 08:12:46,165 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-13 08:12:46,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-13 08:12:46,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:46,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:12:46,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:12:46,172 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:12:46,172 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759296060] [2021-06-13 08:12:46,172 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759296060] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:12:46,172 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:12:46,172 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-06-13 08:12:46,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011091101] [2021-06-13 08:12:46,173 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-13 08:12:46,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:12:46,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-13 08:12:46,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-06-13 08:12:46,174 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 92 [2021-06-13 08:12:46,175 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 94 transitions, 444 flow. Second operand has 13 states, 13 states have (on average 48.92307692307692) internal successors, (636), 13 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:46,175 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:12:46,175 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 92 [2021-06-13 08:12:46,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:12:46,871 INFO L129 PetriNetUnfolder]: 127/522 cut-off events. [2021-06-13 08:12:46,871 INFO L130 PetriNetUnfolder]: For 651/654 co-relation queries the response was YES. [2021-06-13 08:12:46,873 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1268 conditions, 522 events. 127/522 cut-off events. For 651/654 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2658 event pairs, 17 based on Foata normal form. 3/506 useless extension candidates. Maximal degree in co-relation 1163. Up to 152 conditions per place. [2021-06-13 08:12:46,875 INFO L132 encePairwiseOnDemand]: 75/92 looper letters, 64 selfloop transitions, 39 changer transitions 0/132 dead transitions. [2021-06-13 08:12:46,875 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 132 transitions, 807 flow [2021-06-13 08:12:46,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-13 08:12:46,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-06-13 08:12:46,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1031 transitions. [2021-06-13 08:12:46,878 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5603260869565218 [2021-06-13 08:12:46,879 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1031 transitions. [2021-06-13 08:12:46,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1031 transitions. [2021-06-13 08:12:46,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:12:46,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1031 transitions. [2021-06-13 08:12:46,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 51.55) internal successors, (1031), 20 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:46,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 92.0) internal successors, (1932), 21 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:46,885 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 92.0) internal successors, (1932), 21 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:46,885 INFO L185 Difference]: Start difference. First operand has 112 places, 94 transitions, 444 flow. Second operand 20 states and 1031 transitions. [2021-06-13 08:12:46,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 132 transitions, 807 flow [2021-06-13 08:12:46,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 132 transitions, 756 flow, removed 8 selfloop flow, removed 9 redundant places. [2021-06-13 08:12:46,892 INFO L241 Difference]: Finished difference. Result has 127 places, 102 transitions, 582 flow [2021-06-13 08:12:46,892 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=582, PETRI_PLACES=127, PETRI_TRANSITIONS=102} [2021-06-13 08:12:46,892 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 59 predicate places. [2021-06-13 08:12:46,892 INFO L482 AbstractCegarLoop]: Abstraction has has 127 places, 102 transitions, 582 flow [2021-06-13 08:12:46,893 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 48.92307692307692) internal successors, (636), 13 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:46,893 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:12:46,893 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] [2021-06-13 08:12:46,893 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-13 08:12:46,893 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:12:46,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:12:46,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1884213040, now seen corresponding path program 4 times [2021-06-13 08:12:46,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:12:46,894 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695868702] [2021-06-13 08:12:46,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:12:46,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:12:46,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:46,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:12:46,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:46,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:12:46,970 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-06-13 08:12:46,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 08:12:46,976 INFO L142 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size [2021-06-13 08:12:46,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 08:12:46,985 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-06-13 08:12:46,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 08:12:46,999 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-06-13 08:12:46,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 08:12:47,012 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-06-13 08:12:47,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 08:12:47,027 INFO L142 QuantifierPusher]: treesize reduction 5, result has 89.4 percent of original size [2021-06-13 08:12:47,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-13 08:12:47,036 INFO L142 QuantifierPusher]: treesize reduction 5, result has 89.4 percent of original size [2021-06-13 08:12:47,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-13 08:12:47,061 INFO L142 QuantifierPusher]: treesize reduction 3, result has 93.2 percent of original size [2021-06-13 08:12:47,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-13 08:12:47,088 INFO L142 QuantifierPusher]: treesize reduction 3, result has 93.2 percent of original size [2021-06-13 08:12:47,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-13 08:12:47,128 INFO L142 QuantifierPusher]: treesize reduction 3, result has 95.0 percent of original size [2021-06-13 08:12:47,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-13 08:12:47,161 INFO L142 QuantifierPusher]: treesize reduction 5, result has 82.1 percent of original size [2021-06-13 08:12:47,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 08:12:47,177 INFO L142 QuantifierPusher]: treesize reduction 5, result has 82.1 percent of original size [2021-06-13 08:12:47,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 08:12:47,194 INFO L142 QuantifierPusher]: treesize reduction 5, result has 82.1 percent of original size [2021-06-13 08:12:47,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 08:12:47,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:47,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 08:12:47,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:47,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-13 08:12:47,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:47,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 08:12:47,260 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-13 08:12:47,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-06-13 08:12:47,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:47,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:12:47,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:12:47,328 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:12:47,328 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695868702] [2021-06-13 08:12:47,329 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695868702] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:12:47,329 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:12:47,329 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-06-13 08:12:47,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184006821] [2021-06-13 08:12:47,329 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-13 08:12:47,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:12:47,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-13 08:12:47,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-06-13 08:12:47,332 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 92 [2021-06-13 08:12:47,333 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 102 transitions, 582 flow. Second operand has 17 states, 17 states have (on average 43.76470588235294) internal successors, (744), 17 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:47,333 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:12:47,333 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 92 [2021-06-13 08:12:47,333 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:12:47,786 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2021-06-13 08:12:48,141 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2021-06-13 08:12:48,495 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2021-06-13 08:12:49,690 INFO L129 PetriNetUnfolder]: 193/623 cut-off events. [2021-06-13 08:12:49,690 INFO L130 PetriNetUnfolder]: For 1139/1139 co-relation queries the response was YES. [2021-06-13 08:12:49,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1696 conditions, 623 events. 193/623 cut-off events. For 1139/1139 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3049 event pairs, 6 based on Foata normal form. 3/614 useless extension candidates. Maximal degree in co-relation 1634. Up to 154 conditions per place. [2021-06-13 08:12:49,696 INFO L132 encePairwiseOnDemand]: 70/92 looper letters, 79 selfloop transitions, 73 changer transitions 0/176 dead transitions. [2021-06-13 08:12:49,696 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 176 transitions, 1228 flow [2021-06-13 08:12:49,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-13 08:12:49,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2021-06-13 08:12:49,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 1468 transitions. [2021-06-13 08:12:49,701 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4986413043478261 [2021-06-13 08:12:49,701 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 1468 transitions. [2021-06-13 08:12:49,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 1468 transitions. [2021-06-13 08:12:49,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:12:49,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 1468 transitions. [2021-06-13 08:12:49,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 45.875) internal successors, (1468), 32 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:49,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 92.0) internal successors, (3036), 33 states have internal predecessors, (3036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:49,713 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 92.0) internal successors, (3036), 33 states have internal predecessors, (3036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:49,713 INFO L185 Difference]: Start difference. First operand has 127 places, 102 transitions, 582 flow. Second operand 32 states and 1468 transitions. [2021-06-13 08:12:49,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 176 transitions, 1228 flow [2021-06-13 08:12:49,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 176 transitions, 1111 flow, removed 28 selfloop flow, removed 15 redundant places. [2021-06-13 08:12:49,723 INFO L241 Difference]: Finished difference. Result has 146 places, 130 transitions, 849 flow [2021-06-13 08:12:49,724 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=849, PETRI_PLACES=146, PETRI_TRANSITIONS=130} [2021-06-13 08:12:49,724 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 78 predicate places. [2021-06-13 08:12:49,724 INFO L482 AbstractCegarLoop]: Abstraction has has 146 places, 130 transitions, 849 flow [2021-06-13 08:12:49,724 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 43.76470588235294) internal successors, (744), 17 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:49,724 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:12:49,725 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, 1, 1, 1] [2021-06-13 08:12:49,725 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-13 08:12:49,725 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:12:49,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:12:49,725 INFO L82 PathProgramCache]: Analyzing trace with hash 182705581, now seen corresponding path program 1 times [2021-06-13 08:12:49,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:12:49,727 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265164183] [2021-06-13 08:12:49,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:12:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:12:49,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:49,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:12:49,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:49,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:12:49,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:49,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:12:49,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:49,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:12:49,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:49,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:12:49,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:49,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:12:49,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:49,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:12:49,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:49,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 08:12:49,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:49,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 08:12:49,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:49,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 08:12:49,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:49,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 08:12:49,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:49,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:49,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:49,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:49,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:49,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:49,975 INFO L142 QuantifierPusher]: treesize reduction 7, result has 63.2 percent of original size [2021-06-13 08:12:49,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:12:49,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:49,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:50,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:50,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:50,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:50,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:50,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:50,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 08:12:50,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:50,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:12:50,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:50,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:12:50,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:50,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:12:50,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:50,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 08:12:50,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:50,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:12:50,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:50,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:12:50,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:50,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:12:50,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:50,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:12:50,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:12:50,251 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:12:50,251 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265164183] [2021-06-13 08:12:50,251 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265164183] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:12:50,251 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:12:50,251 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-13 08:12:50,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306462447] [2021-06-13 08:12:50,253 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-13 08:12:50,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:12:50,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-13 08:12:50,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-13 08:12:50,256 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2021-06-13 08:12:50,257 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 130 transitions, 849 flow. Second operand has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:50,257 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:12:50,257 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2021-06-13 08:12:50,257 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:12:52,573 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2021-06-13 08:12:53,148 INFO L129 PetriNetUnfolder]: 456/1434 cut-off events. [2021-06-13 08:12:53,148 INFO L130 PetriNetUnfolder]: For 2235/2282 co-relation queries the response was YES. [2021-06-13 08:12:53,153 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4288 conditions, 1434 events. 456/1434 cut-off events. For 2235/2282 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 9977 event pairs, 113 based on Foata normal form. 46/1450 useless extension candidates. Maximal degree in co-relation 4195. Up to 399 conditions per place. [2021-06-13 08:12:53,158 INFO L132 encePairwiseOnDemand]: 56/92 looper letters, 123 selfloop transitions, 13 changer transitions 98/285 dead transitions. [2021-06-13 08:12:53,158 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 285 transitions, 2299 flow [2021-06-13 08:12:53,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-13 08:12:53,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-06-13 08:12:53,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 1184 transitions. [2021-06-13 08:12:53,164 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.357487922705314 [2021-06-13 08:12:53,164 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 1184 transitions. [2021-06-13 08:12:53,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 1184 transitions. [2021-06-13 08:12:53,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:12:53,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 1184 transitions. [2021-06-13 08:12:53,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 32.888888888888886) internal successors, (1184), 36 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:53,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 92.0) internal successors, (3404), 37 states have internal predecessors, (3404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:53,173 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 92.0) internal successors, (3404), 37 states have internal predecessors, (3404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:53,173 INFO L185 Difference]: Start difference. First operand has 146 places, 130 transitions, 849 flow. Second operand 36 states and 1184 transitions. [2021-06-13 08:12:53,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 285 transitions, 2299 flow [2021-06-13 08:12:53,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 285 transitions, 2076 flow, removed 34 selfloop flow, removed 18 redundant places. [2021-06-13 08:12:53,187 INFO L241 Difference]: Finished difference. Result has 194 places, 135 transitions, 889 flow [2021-06-13 08:12:53,187 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=729, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=889, PETRI_PLACES=194, PETRI_TRANSITIONS=135} [2021-06-13 08:12:53,187 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 126 predicate places. [2021-06-13 08:12:53,187 INFO L482 AbstractCegarLoop]: Abstraction has has 194 places, 135 transitions, 889 flow [2021-06-13 08:12:53,188 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:53,188 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:12:53,188 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, 1, 1, 1] [2021-06-13 08:12:53,188 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-13 08:12:53,188 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:12:53,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:12:53,189 INFO L82 PathProgramCache]: Analyzing trace with hash 253938927, now seen corresponding path program 2 times [2021-06-13 08:12:53,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:12:53,189 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911663413] [2021-06-13 08:12:53,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:12:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:12:53,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:53,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:12:53,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:53,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:12:53,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:53,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:12:53,240 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-06-13 08:12:53,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 08:12:53,246 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-06-13 08:12:53,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 08:12:53,254 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.0 percent of original size [2021-06-13 08:12:53,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 08:12:53,260 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.0 percent of original size [2021-06-13 08:12:53,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 08:12:53,273 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-06-13 08:12:53,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:12:53,287 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-06-13 08:12:53,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:12:53,301 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-06-13 08:12:53,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:12:53,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:53,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 08:12:53,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:53,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:53,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:53,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:53,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:53,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:53,383 INFO L142 QuantifierPusher]: treesize reduction 2, result has 85.7 percent of original size [2021-06-13 08:12:53,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:12:53,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:53,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:53,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:53,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:53,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:53,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:53,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:53,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 08:12:53,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:53,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:12:53,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:53,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:12:54,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:54,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:12:54,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:54,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 08:12:54,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:54,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:12:54,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:54,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:12:54,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:54,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:12:54,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:54,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:12:54,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:12:54,256 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:12:54,258 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911663413] [2021-06-13 08:12:54,258 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911663413] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:12:54,258 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:12:54,258 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-13 08:12:54,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529099866] [2021-06-13 08:12:54,267 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-13 08:12:54,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:12:54,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-13 08:12:54,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2021-06-13 08:12:54,276 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2021-06-13 08:12:54,277 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 135 transitions, 889 flow. Second operand has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:54,277 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:12:54,277 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2021-06-13 08:12:54,277 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:12:56,383 INFO L129 PetriNetUnfolder]: 325/1081 cut-off events. [2021-06-13 08:12:56,383 INFO L130 PetriNetUnfolder]: For 1542/1551 co-relation queries the response was YES. [2021-06-13 08:12:56,391 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3673 conditions, 1081 events. 325/1081 cut-off events. For 1542/1551 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6914 event pairs, 46 based on Foata normal form. 6/1073 useless extension candidates. Maximal degree in co-relation 3616. Up to 364 conditions per place. [2021-06-13 08:12:56,394 INFO L132 encePairwiseOnDemand]: 56/92 looper letters, 98 selfloop transitions, 8 changer transitions 102/259 dead transitions. [2021-06-13 08:12:56,395 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 259 transitions, 2089 flow [2021-06-13 08:12:56,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-13 08:12:56,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-06-13 08:12:56,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 1184 transitions. [2021-06-13 08:12:56,397 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.357487922705314 [2021-06-13 08:12:56,397 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 1184 transitions. [2021-06-13 08:12:56,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 1184 transitions. [2021-06-13 08:12:56,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:12:56,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 1184 transitions. [2021-06-13 08:12:56,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 32.888888888888886) internal successors, (1184), 36 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:56,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 92.0) internal successors, (3404), 37 states have internal predecessors, (3404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:56,404 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 92.0) internal successors, (3404), 37 states have internal predecessors, (3404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:56,404 INFO L185 Difference]: Start difference. First operand has 194 places, 135 transitions, 889 flow. Second operand 36 states and 1184 transitions. [2021-06-13 08:12:56,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 259 transitions, 2089 flow [2021-06-13 08:12:56,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 259 transitions, 1855 flow, removed 109 selfloop flow, removed 32 redundant places. [2021-06-13 08:12:56,422 INFO L241 Difference]: Finished difference. Result has 199 places, 132 transitions, 876 flow [2021-06-13 08:12:56,422 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=787, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=876, PETRI_PLACES=199, PETRI_TRANSITIONS=132} [2021-06-13 08:12:56,422 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 131 predicate places. [2021-06-13 08:12:56,422 INFO L482 AbstractCegarLoop]: Abstraction has has 199 places, 132 transitions, 876 flow [2021-06-13 08:12:56,423 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:56,423 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:12:56,423 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, 1, 1, 1] [2021-06-13 08:12:56,423 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-13 08:12:56,423 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:12:56,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:12:56,424 INFO L82 PathProgramCache]: Analyzing trace with hash -187594547, now seen corresponding path program 3 times [2021-06-13 08:12:56,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:12:56,424 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800006495] [2021-06-13 08:12:56,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:12:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:12:56,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:56,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:12:56,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:56,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:12:56,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:56,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:12:56,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:56,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:12:56,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:56,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:12:56,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:56,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:12:56,518 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:12:56,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:12:56,528 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-06-13 08:12:56,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 08:12:56,537 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-06-13 08:12:56,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 08:12:56,547 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-06-13 08:12:56,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 08:12:56,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:56,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 08:12:56,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:56,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:56,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:56,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:56,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:56,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:56,617 INFO L142 QuantifierPusher]: treesize reduction 2, result has 85.7 percent of original size [2021-06-13 08:12:56,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:12:56,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:56,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:56,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:56,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:56,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:56,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:56,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:56,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 08:12:56,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:56,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:12:56,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:56,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:12:56,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:56,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:12:56,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:56,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 08:12:56,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:56,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:12:56,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:56,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:12:56,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:56,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:12:56,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:56,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:12:56,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:12:56,872 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:12:56,873 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800006495] [2021-06-13 08:12:56,873 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800006495] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:12:56,873 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:12:56,873 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-13 08:12:56,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460593162] [2021-06-13 08:12:56,873 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-13 08:12:56,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:12:56,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-13 08:12:56,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-13 08:12:56,875 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2021-06-13 08:12:56,876 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 132 transitions, 876 flow. Second operand has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:56,876 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:12:56,876 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2021-06-13 08:12:56,876 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:12:59,388 INFO L129 PetriNetUnfolder]: 404/1249 cut-off events. [2021-06-13 08:12:59,388 INFO L130 PetriNetUnfolder]: For 2279/2326 co-relation queries the response was YES. [2021-06-13 08:12:59,395 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4404 conditions, 1249 events. 404/1249 cut-off events. For 2279/2326 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 8187 event pairs, 91 based on Foata normal form. 46/1271 useless extension candidates. Maximal degree in co-relation 4344. Up to 384 conditions per place. [2021-06-13 08:12:59,431 INFO L132 encePairwiseOnDemand]: 56/92 looper letters, 110 selfloop transitions, 17 changer transitions 96/274 dead transitions. [2021-06-13 08:12:59,431 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 274 transitions, 2308 flow [2021-06-13 08:12:59,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-13 08:12:59,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-06-13 08:12:59,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 1210 transitions. [2021-06-13 08:12:59,434 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.3554641598119859 [2021-06-13 08:12:59,434 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 1210 transitions. [2021-06-13 08:12:59,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 1210 transitions. [2021-06-13 08:12:59,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:12:59,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 1210 transitions. [2021-06-13 08:12:59,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 32.7027027027027) internal successors, (1210), 37 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:59,440 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 92.0) internal successors, (3496), 38 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:59,440 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 92.0) internal successors, (3496), 38 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:59,441 INFO L185 Difference]: Start difference. First operand has 199 places, 132 transitions, 876 flow. Second operand 37 states and 1210 transitions. [2021-06-13 08:12:59,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 274 transitions, 2308 flow [2021-06-13 08:12:59,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 274 transitions, 2020 flow, removed 117 selfloop flow, removed 36 redundant places. [2021-06-13 08:12:59,457 INFO L241 Difference]: Finished difference. Result has 198 places, 137 transitions, 931 flow [2021-06-13 08:12:59,457 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=757, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=931, PETRI_PLACES=198, PETRI_TRANSITIONS=137} [2021-06-13 08:12:59,457 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 130 predicate places. [2021-06-13 08:12:59,458 INFO L482 AbstractCegarLoop]: Abstraction has has 198 places, 137 transitions, 931 flow [2021-06-13 08:12:59,458 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:59,458 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:12:59,458 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, 1, 1, 1] [2021-06-13 08:12:59,458 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-13 08:12:59,458 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:12:59,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:12:59,459 INFO L82 PathProgramCache]: Analyzing trace with hash 971982285, now seen corresponding path program 4 times [2021-06-13 08:12:59,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:12:59,459 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738664115] [2021-06-13 08:12:59,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:12:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:12:59,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:12:59,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:12:59,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:12:59,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:12:59,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:12:59,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:12:59,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 08:12:59,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 08:12:59,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 08:12:59,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 08:12:59,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 08:12:59,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:59,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:59,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:59,641 INFO L142 QuantifierPusher]: treesize reduction 2, result has 85.7 percent of original size [2021-06-13 08:12:59,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:12:59,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:59,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:59,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:12:59,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 08:12:59,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:12:59,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:12:59,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:12:59,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 08:12:59,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:12:59,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:12:59,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:12:59,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:12:59,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:12:59,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:12:59,898 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:12:59,899 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738664115] [2021-06-13 08:12:59,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738664115] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:12:59,899 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:12:59,899 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-13 08:12:59,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107302808] [2021-06-13 08:12:59,899 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-13 08:12:59,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:12:59,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-13 08:12:59,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2021-06-13 08:12:59,901 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2021-06-13 08:12:59,902 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 137 transitions, 931 flow. Second operand has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:12:59,902 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:12:59,902 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2021-06-13 08:12:59,902 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:13:01,767 INFO L129 PetriNetUnfolder]: 276/869 cut-off events. [2021-06-13 08:13:01,767 INFO L130 PetriNetUnfolder]: For 1707/1714 co-relation queries the response was YES. [2021-06-13 08:13:01,772 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3132 conditions, 869 events. 276/869 cut-off events. For 1707/1714 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4917 event pairs, 23 based on Foata normal form. 6/864 useless extension candidates. Maximal degree in co-relation 3074. Up to 206 conditions per place. [2021-06-13 08:13:01,775 INFO L132 encePairwiseOnDemand]: 56/92 looper letters, 83 selfloop transitions, 11 changer transitions 122/249 dead transitions. [2021-06-13 08:13:01,775 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 249 transitions, 2031 flow [2021-06-13 08:13:01,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-13 08:13:01,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-06-13 08:13:01,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 1178 transitions. [2021-06-13 08:13:01,778 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.3556763285024155 [2021-06-13 08:13:01,778 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 1178 transitions. [2021-06-13 08:13:01,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 1178 transitions. [2021-06-13 08:13:01,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:13:01,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 1178 transitions. [2021-06-13 08:13:01,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 32.72222222222222) internal successors, (1178), 36 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:01,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 92.0) internal successors, (3404), 37 states have internal predecessors, (3404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:01,786 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 92.0) internal successors, (3404), 37 states have internal predecessors, (3404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:01,786 INFO L185 Difference]: Start difference. First operand has 198 places, 137 transitions, 931 flow. Second operand 36 states and 1178 transitions. [2021-06-13 08:13:01,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 249 transitions, 2031 flow [2021-06-13 08:13:01,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 249 transitions, 1819 flow, removed 96 selfloop flow, removed 32 redundant places. [2021-06-13 08:13:01,799 INFO L241 Difference]: Finished difference. Result has 202 places, 105 transitions, 618 flow [2021-06-13 08:13:01,800 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=834, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=618, PETRI_PLACES=202, PETRI_TRANSITIONS=105} [2021-06-13 08:13:01,800 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 134 predicate places. [2021-06-13 08:13:01,800 INFO L482 AbstractCegarLoop]: Abstraction has has 202 places, 105 transitions, 618 flow [2021-06-13 08:13:01,800 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:01,800 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:13:01,801 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, 1, 1, 1] [2021-06-13 08:13:01,801 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-13 08:13:01,801 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:13:01,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:13:01,801 INFO L82 PathProgramCache]: Analyzing trace with hash 923950273, now seen corresponding path program 5 times [2021-06-13 08:13:01,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:13:01,801 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122013461] [2021-06-13 08:13:01,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:13:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:13:01,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:01,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:13:01,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:01,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:01,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:01,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:01,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:01,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:01,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:01,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:01,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:01,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:01,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:01,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:01,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:01,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:01,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:01,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:01,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:01,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:01,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:01,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:01,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:01,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:01,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:01,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:01,949 INFO L142 QuantifierPusher]: treesize reduction 2, result has 87.5 percent of original size [2021-06-13 08:13:01,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 08:13:01,964 INFO L142 QuantifierPusher]: treesize reduction 2, result has 85.7 percent of original size [2021-06-13 08:13:01,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:01,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:01,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:01,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:01,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:02,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:02,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:02,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:02,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 08:13:02,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:02,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:02,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:02,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:02,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:02,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:02,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:02,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 08:13:02,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:02,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:02,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:02,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:02,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:02,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:02,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:02,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:02,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:13:02,239 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:13:02,239 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122013461] [2021-06-13 08:13:02,239 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122013461] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:13:02,239 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:13:02,239 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-13 08:13:02,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290330845] [2021-06-13 08:13:02,239 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-13 08:13:02,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:13:02,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-13 08:13:02,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=647, Unknown=0, NotChecked=0, Total=702 [2021-06-13 08:13:02,241 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2021-06-13 08:13:02,241 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 105 transitions, 618 flow. Second operand has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:02,242 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:13:02,242 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2021-06-13 08:13:02,242 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:13:04,488 INFO L129 PetriNetUnfolder]: 179/557 cut-off events. [2021-06-13 08:13:04,489 INFO L130 PetriNetUnfolder]: For 1748/1764 co-relation queries the response was YES. [2021-06-13 08:13:04,492 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2077 conditions, 557 events. 179/557 cut-off events. For 1748/1764 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2667 event pairs, 12 based on Foata normal form. 17/564 useless extension candidates. Maximal degree in co-relation 2020. Up to 130 conditions per place. [2021-06-13 08:13:04,494 INFO L132 encePairwiseOnDemand]: 56/92 looper letters, 72 selfloop transitions, 32 changer transitions 50/187 dead transitions. [2021-06-13 08:13:04,494 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 187 transitions, 1562 flow [2021-06-13 08:13:04,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-13 08:13:04,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-06-13 08:13:04,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 1217 transitions. [2021-06-13 08:13:04,497 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.3481121281464531 [2021-06-13 08:13:04,497 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 1217 transitions. [2021-06-13 08:13:04,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 1217 transitions. [2021-06-13 08:13:04,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:13:04,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 1217 transitions. [2021-06-13 08:13:04,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 32.026315789473685) internal successors, (1217), 38 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:04,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 92.0) internal successors, (3588), 39 states have internal predecessors, (3588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:04,503 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 92.0) internal successors, (3588), 39 states have internal predecessors, (3588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:04,503 INFO L185 Difference]: Start difference. First operand has 202 places, 105 transitions, 618 flow. Second operand 38 states and 1217 transitions. [2021-06-13 08:13:04,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 187 transitions, 1562 flow [2021-06-13 08:13:04,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 187 transitions, 1237 flow, removed 75 selfloop flow, removed 51 redundant places. [2021-06-13 08:13:04,512 INFO L241 Difference]: Finished difference. Result has 165 places, 107 transitions, 567 flow [2021-06-13 08:13:04,512 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=567, PETRI_PLACES=165, PETRI_TRANSITIONS=107} [2021-06-13 08:13:04,512 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 97 predicate places. [2021-06-13 08:13:04,513 INFO L482 AbstractCegarLoop]: Abstraction has has 165 places, 107 transitions, 567 flow [2021-06-13 08:13:04,513 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:04,513 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:13:04,513 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, 1, 1, 1] [2021-06-13 08:13:04,513 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-13 08:13:04,513 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:13:04,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:13:04,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1070609851, now seen corresponding path program 6 times [2021-06-13 08:13:04,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:13:04,514 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213999214] [2021-06-13 08:13:04,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:13:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:13:04,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:04,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:13:04,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:04,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:04,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:04,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:04,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:04,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:04,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:04,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:04,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:04,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:04,566 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:13:04,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:04,574 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:13:04,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:04,584 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-06-13 08:13:04,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 08:13:04,593 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-06-13 08:13:04,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 08:13:04,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:04,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 08:13:04,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:04,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:04,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:04,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:04,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:04,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:04,654 INFO L142 QuantifierPusher]: treesize reduction 2, result has 85.7 percent of original size [2021-06-13 08:13:04,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:04,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:04,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:04,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:04,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:04,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:04,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:04,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:04,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 08:13:04,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:04,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:04,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:04,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:04,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:04,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:04,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:04,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 08:13:04,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:04,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:04,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:04,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:04,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:04,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:04,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:04,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:04,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:13:04,897 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:13:04,897 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213999214] [2021-06-13 08:13:04,897 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213999214] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:13:04,897 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:13:04,897 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-13 08:13:04,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41393151] [2021-06-13 08:13:04,897 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-13 08:13:04,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:13:04,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-13 08:13:04,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-13 08:13:04,899 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2021-06-13 08:13:04,900 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 107 transitions, 567 flow. Second operand has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:04,900 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:13:04,900 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2021-06-13 08:13:04,900 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:13:07,645 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-06-13 08:13:07,937 INFO L129 PetriNetUnfolder]: 219/636 cut-off events. [2021-06-13 08:13:07,937 INFO L130 PetriNetUnfolder]: For 1181/1182 co-relation queries the response was YES. [2021-06-13 08:13:07,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2331 conditions, 636 events. 219/636 cut-off events. For 1181/1182 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3054 event pairs, 26 based on Foata normal form. 2/629 useless extension candidates. Maximal degree in co-relation 2294. Up to 195 conditions per place. [2021-06-13 08:13:07,944 INFO L132 encePairwiseOnDemand]: 56/92 looper letters, 77 selfloop transitions, 15 changer transitions 83/207 dead transitions. [2021-06-13 08:13:07,945 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 207 transitions, 1562 flow [2021-06-13 08:13:07,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-13 08:13:07,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-06-13 08:13:07,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 1201 transitions. [2021-06-13 08:13:07,962 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.3528202115158637 [2021-06-13 08:13:07,962 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 1201 transitions. [2021-06-13 08:13:07,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 1201 transitions. [2021-06-13 08:13:07,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:13:07,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 1201 transitions. [2021-06-13 08:13:07,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 32.45945945945946) internal successors, (1201), 37 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:07,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 92.0) internal successors, (3496), 38 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:07,968 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 92.0) internal successors, (3496), 38 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:07,968 INFO L185 Difference]: Start difference. First operand has 165 places, 107 transitions, 567 flow. Second operand 37 states and 1201 transitions. [2021-06-13 08:13:07,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 207 transitions, 1562 flow [2021-06-13 08:13:07,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 207 transitions, 1348 flow, removed 47 selfloop flow, removed 33 redundant places. [2021-06-13 08:13:07,992 INFO L241 Difference]: Finished difference. Result has 173 places, 102 transitions, 545 flow [2021-06-13 08:13:07,992 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=545, PETRI_PLACES=173, PETRI_TRANSITIONS=102} [2021-06-13 08:13:07,992 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 105 predicate places. [2021-06-13 08:13:07,993 INFO L482 AbstractCegarLoop]: Abstraction has has 173 places, 102 transitions, 545 flow [2021-06-13 08:13:07,993 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:07,993 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:13:07,993 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, 1, 1, 1] [2021-06-13 08:13:07,993 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-13 08:13:07,993 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:13:07,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:13:07,994 INFO L82 PathProgramCache]: Analyzing trace with hash -927365827, now seen corresponding path program 7 times [2021-06-13 08:13:07,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:13:07,994 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122356949] [2021-06-13 08:13:07,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:13:08,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:13:08,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:13:08,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:08,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:08,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:08,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:08,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:08,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:08,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:08,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:08,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:08,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:08,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:08,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:08,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:08,140 INFO L142 QuantifierPusher]: treesize reduction 2, result has 85.7 percent of original size [2021-06-13 08:13:08,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:08,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:08,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:08,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:08,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 08:13:08,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:08,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:08,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:08,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 08:13:08,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:08,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:08,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:08,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:08,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:08,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:13:08,399 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:13:08,399 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122356949] [2021-06-13 08:13:08,399 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122356949] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:13:08,399 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:13:08,399 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-13 08:13:08,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132239916] [2021-06-13 08:13:08,400 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-13 08:13:08,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:13:08,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-13 08:13:08,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=648, Unknown=0, NotChecked=0, Total=702 [2021-06-13 08:13:08,401 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2021-06-13 08:13:08,402 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 102 transitions, 545 flow. Second operand has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:08,402 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:13:08,402 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2021-06-13 08:13:08,402 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:13:11,435 INFO L129 PetriNetUnfolder]: 179/565 cut-off events. [2021-06-13 08:13:11,435 INFO L130 PetriNetUnfolder]: For 1540/1541 co-relation queries the response was YES. [2021-06-13 08:13:11,437 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2092 conditions, 565 events. 179/565 cut-off events. For 1540/1541 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2726 event pairs, 14 based on Foata normal form. 2/558 useless extension candidates. Maximal degree in co-relation 2047. Up to 159 conditions per place. [2021-06-13 08:13:11,439 INFO L132 encePairwiseOnDemand]: 56/92 looper letters, 63 selfloop transitions, 28 changer transitions 52/175 dead transitions. [2021-06-13 08:13:11,439 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 175 transitions, 1377 flow [2021-06-13 08:13:11,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-13 08:13:11,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-06-13 08:13:11,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 1151 transitions. [2021-06-13 08:13:11,441 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.34752415458937197 [2021-06-13 08:13:11,442 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 1151 transitions. [2021-06-13 08:13:11,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 1151 transitions. [2021-06-13 08:13:11,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:13:11,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 1151 transitions. [2021-06-13 08:13:11,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 31.97222222222222) internal successors, (1151), 36 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:11,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 92.0) internal successors, (3404), 37 states have internal predecessors, (3404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:11,448 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 92.0) internal successors, (3404), 37 states have internal predecessors, (3404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:11,448 INFO L185 Difference]: Start difference. First operand has 173 places, 102 transitions, 545 flow. Second operand 36 states and 1151 transitions. [2021-06-13 08:13:11,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 175 transitions, 1377 flow [2021-06-13 08:13:11,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 175 transitions, 1173 flow, removed 67 selfloop flow, removed 36 redundant places. [2021-06-13 08:13:11,456 INFO L241 Difference]: Finished difference. Result has 164 places, 104 transitions, 557 flow [2021-06-13 08:13:11,456 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=557, PETRI_PLACES=164, PETRI_TRANSITIONS=104} [2021-06-13 08:13:11,456 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 96 predicate places. [2021-06-13 08:13:11,456 INFO L482 AbstractCegarLoop]: Abstraction has has 164 places, 104 transitions, 557 flow [2021-06-13 08:13:11,457 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:11,457 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:13:11,457 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 08:13:11,457 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-13 08:13:11,457 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:13:11,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:13:11,457 INFO L82 PathProgramCache]: Analyzing trace with hash -143417317, now seen corresponding path program 8 times [2021-06-13 08:13:11,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:13:11,458 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219909365] [2021-06-13 08:13:11,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:13:11,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:13:11,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:11,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:13:11,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:11,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:11,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:11,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:11,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:11,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:11,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:11,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:11,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:11,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:11,513 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:13:11,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:11,521 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:13:11,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:11,530 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:13:11,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:11,542 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-06-13 08:13:11,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 08:13:11,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:11,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 08:13:11,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:11,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:11,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:11,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:11,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:11,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:11,601 INFO L142 QuantifierPusher]: treesize reduction 2, result has 85.7 percent of original size [2021-06-13 08:13:11,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:11,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:11,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:11,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:11,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:12,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:12,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:12,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:12,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 08:13:12,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:12,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:12,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:12,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:12,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:12,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:12,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:12,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 08:13:12,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:12,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:12,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:12,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:12,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:12,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:12,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:12,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:12,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:13:12,289 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:13:12,289 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219909365] [2021-06-13 08:13:12,306 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219909365] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:13:12,306 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:13:12,306 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-13 08:13:12,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925497052] [2021-06-13 08:13:12,308 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-13 08:13:12,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:13:12,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-13 08:13:12,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-13 08:13:12,309 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2021-06-13 08:13:12,310 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 104 transitions, 557 flow. Second operand has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:12,310 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:13:12,310 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2021-06-13 08:13:12,310 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:13:14,363 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-06-13 08:13:14,787 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2021-06-13 08:13:15,233 INFO L129 PetriNetUnfolder]: 207/625 cut-off events. [2021-06-13 08:13:15,233 INFO L130 PetriNetUnfolder]: For 1271/1272 co-relation queries the response was YES. [2021-06-13 08:13:15,236 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2327 conditions, 625 events. 207/625 cut-off events. For 1271/1272 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3074 event pairs, 12 based on Foata normal form. 2/618 useless extension candidates. Maximal degree in co-relation 2288. Up to 198 conditions per place. [2021-06-13 08:13:15,238 INFO L132 encePairwiseOnDemand]: 56/92 looper letters, 71 selfloop transitions, 18 changer transitions 76/196 dead transitions. [2021-06-13 08:13:15,238 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 196 transitions, 1479 flow [2021-06-13 08:13:15,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-13 08:13:15,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-06-13 08:13:15,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 1198 transitions. [2021-06-13 08:13:15,263 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.3519388954171563 [2021-06-13 08:13:15,263 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 1198 transitions. [2021-06-13 08:13:15,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 1198 transitions. [2021-06-13 08:13:15,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:13:15,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 1198 transitions. [2021-06-13 08:13:15,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 32.37837837837838) internal successors, (1198), 37 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:15,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 92.0) internal successors, (3496), 38 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:15,293 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 92.0) internal successors, (3496), 38 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:15,293 INFO L185 Difference]: Start difference. First operand has 164 places, 104 transitions, 557 flow. Second operand 37 states and 1198 transitions. [2021-06-13 08:13:15,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 196 transitions, 1479 flow [2021-06-13 08:13:15,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 196 transitions, 1300 flow, removed 51 selfloop flow, removed 31 redundant places. [2021-06-13 08:13:15,301 INFO L241 Difference]: Finished difference. Result has 174 places, 99 transitions, 543 flow [2021-06-13 08:13:15,301 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=543, PETRI_PLACES=174, PETRI_TRANSITIONS=99} [2021-06-13 08:13:15,301 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 106 predicate places. [2021-06-13 08:13:15,301 INFO L482 AbstractCegarLoop]: Abstraction has has 174 places, 99 transitions, 543 flow [2021-06-13 08:13:15,302 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:15,302 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:13:15,302 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, 1, 1, 1] [2021-06-13 08:13:15,302 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-13 08:13:15,302 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:13:15,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:13:15,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1987034698, now seen corresponding path program 1 times [2021-06-13 08:13:15,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:13:15,303 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601149015] [2021-06-13 08:13:15,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:13:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:13:15,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:15,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:13:15,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:15,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:15,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:15,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:15,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:15,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:15,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:15,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:15,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:15,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:15,379 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-06-13 08:13:15,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 08:13:15,387 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-06-13 08:13:15,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 08:13:15,396 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-06-13 08:13:15,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 08:13:15,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:15,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 08:13:15,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:15,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 08:13:15,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:15,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 08:13:15,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:15,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 08:13:15,458 INFO L142 QuantifierPusher]: treesize reduction 7, result has 65.0 percent of original size [2021-06-13 08:13:15,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 08:13:15,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:15,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 08:13:15,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:15,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 08:13:15,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:15,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 08:13:15,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:15,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:15,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:15,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 08:13:15,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:15,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:15,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:15,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:15,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:15,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:15,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:15,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 08:13:15,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:15,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:15,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:15,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:15,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:15,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:15,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:15,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:15,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:13:15,772 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:13:15,772 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601149015] [2021-06-13 08:13:15,772 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601149015] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:13:15,772 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:13:15,772 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-13 08:13:15,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792757490] [2021-06-13 08:13:15,773 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-13 08:13:15,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:13:15,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-13 08:13:15,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2021-06-13 08:13:15,774 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2021-06-13 08:13:15,775 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 99 transitions, 543 flow. Second operand has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:15,775 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:13:15,775 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2021-06-13 08:13:15,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:13:17,336 INFO L129 PetriNetUnfolder]: 144/479 cut-off events. [2021-06-13 08:13:17,336 INFO L130 PetriNetUnfolder]: For 1515/1515 co-relation queries the response was YES. [2021-06-13 08:13:17,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 479 events. 144/479 cut-off events. For 1515/1515 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2163 event pairs, 2 based on Foata normal form. 1/475 useless extension candidates. Maximal degree in co-relation 1797. Up to 60 conditions per place. [2021-06-13 08:13:17,340 INFO L132 encePairwiseOnDemand]: 56/92 looper letters, 70 selfloop transitions, 34 changer transitions 27/162 dead transitions. [2021-06-13 08:13:17,340 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 162 transitions, 1285 flow [2021-06-13 08:13:17,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-13 08:13:17,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-06-13 08:13:17,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 1147 transitions. [2021-06-13 08:13:17,342 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.34631642512077293 [2021-06-13 08:13:17,342 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 1147 transitions. [2021-06-13 08:13:17,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 1147 transitions. [2021-06-13 08:13:17,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:13:17,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 1147 transitions. [2021-06-13 08:13:17,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 31.86111111111111) internal successors, (1147), 36 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:17,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 92.0) internal successors, (3404), 37 states have internal predecessors, (3404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:17,347 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 92.0) internal successors, (3404), 37 states have internal predecessors, (3404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:17,347 INFO L185 Difference]: Start difference. First operand has 174 places, 99 transitions, 543 flow. Second operand 36 states and 1147 transitions. [2021-06-13 08:13:17,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 162 transitions, 1285 flow [2021-06-13 08:13:17,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 162 transitions, 1121 flow, removed 47 selfloop flow, removed 35 redundant places. [2021-06-13 08:13:17,354 INFO L241 Difference]: Finished difference. Result has 162 places, 101 transitions, 562 flow [2021-06-13 08:13:17,355 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=562, PETRI_PLACES=162, PETRI_TRANSITIONS=101} [2021-06-13 08:13:17,355 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 94 predicate places. [2021-06-13 08:13:17,355 INFO L482 AbstractCegarLoop]: Abstraction has has 162 places, 101 transitions, 562 flow [2021-06-13 08:13:17,356 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:17,356 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:13:17,356 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, 1, 1, 1] [2021-06-13 08:13:17,356 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-13 08:13:17,356 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:13:17,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:13:17,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1504380911, now seen corresponding path program 9 times [2021-06-13 08:13:17,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:13:17,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022683303] [2021-06-13 08:13:17,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:13:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:13:17,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:17,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:13:17,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:17,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:17,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:17,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:17,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:17,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:17,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:17,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:17,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:17,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:17,418 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:13:17,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:17,426 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:13:17,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:17,435 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:13:17,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:17,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:17,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:17,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:17,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 08:13:17,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:17,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:17,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:17,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:17,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:17,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:17,516 INFO L142 QuantifierPusher]: treesize reduction 2, result has 85.7 percent of original size [2021-06-13 08:13:17,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:17,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:17,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:17,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:17,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:17,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:17,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:17,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:17,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 08:13:17,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:17,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:17,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:17,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:17,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:17,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:17,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:17,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 08:13:17,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:17,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:17,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:17,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:17,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:17,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:17,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:17,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:17,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:13:17,747 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:13:17,747 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022683303] [2021-06-13 08:13:17,747 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022683303] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:13:17,747 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:13:17,747 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-13 08:13:17,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612070895] [2021-06-13 08:13:17,748 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-13 08:13:17,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:13:17,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-13 08:13:17,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-13 08:13:17,749 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2021-06-13 08:13:17,750 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 101 transitions, 562 flow. Second operand has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:17,750 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:13:17,750 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2021-06-13 08:13:17,750 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:13:19,990 INFO L129 PetriNetUnfolder]: 191/603 cut-off events. [2021-06-13 08:13:19,990 INFO L130 PetriNetUnfolder]: For 1383/1383 co-relation queries the response was YES. [2021-06-13 08:13:19,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2319 conditions, 603 events. 191/603 cut-off events. For 1383/1383 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2970 event pairs, 12 based on Foata normal form. 1/596 useless extension candidates. Maximal degree in co-relation 2283. Up to 188 conditions per place. [2021-06-13 08:13:19,994 INFO L132 encePairwiseOnDemand]: 56/92 looper letters, 71 selfloop transitions, 26 changer transitions 60/188 dead transitions. [2021-06-13 08:13:19,994 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 188 transitions, 1457 flow [2021-06-13 08:13:19,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-13 08:13:19,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-06-13 08:13:19,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 1195 transitions. [2021-06-13 08:13:19,996 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.3510575793184489 [2021-06-13 08:13:19,996 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 1195 transitions. [2021-06-13 08:13:19,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 1195 transitions. [2021-06-13 08:13:19,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:13:19,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 1195 transitions. [2021-06-13 08:13:19,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 32.2972972972973) internal successors, (1195), 37 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:20,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 92.0) internal successors, (3496), 38 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:20,002 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 92.0) internal successors, (3496), 38 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:20,002 INFO L185 Difference]: Start difference. First operand has 162 places, 101 transitions, 562 flow. Second operand 37 states and 1195 transitions. [2021-06-13 08:13:20,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 188 transitions, 1457 flow [2021-06-13 08:13:20,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 188 transitions, 1279 flow, removed 33 selfloop flow, removed 31 redundant places. [2021-06-13 08:13:20,010 INFO L241 Difference]: Finished difference. Result has 176 places, 107 transitions, 631 flow [2021-06-13 08:13:20,011 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=631, PETRI_PLACES=176, PETRI_TRANSITIONS=107} [2021-06-13 08:13:20,011 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 108 predicate places. [2021-06-13 08:13:20,011 INFO L482 AbstractCegarLoop]: Abstraction has has 176 places, 107 transitions, 631 flow [2021-06-13 08:13:20,011 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:20,011 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:13:20,012 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, 1, 1, 1] [2021-06-13 08:13:20,012 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-13 08:13:20,012 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:13:20,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:13:20,012 INFO L82 PathProgramCache]: Analyzing trace with hash 830968195, now seen corresponding path program 10 times [2021-06-13 08:13:20,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:13:20,012 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959739646] [2021-06-13 08:13:20,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:13:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:13:20,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:20,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:13:20,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:20,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:20,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:20,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:20,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:20,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:20,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:20,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:20,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:20,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:20,069 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-06-13 08:13:20,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 08:13:20,077 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-06-13 08:13:20,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 08:13:20,086 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-06-13 08:13:20,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 08:13:20,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:20,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 08:13:20,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:20,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 08:13:20,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:20,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 08:13:20,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:20,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 08:13:20,151 INFO L142 QuantifierPusher]: treesize reduction 7, result has 65.0 percent of original size [2021-06-13 08:13:20,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 08:13:20,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:20,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 08:13:20,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:20,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 08:13:20,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:20,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:20,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:20,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:20,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:20,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 08:13:20,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:20,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:20,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:20,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:20,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:20,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:20,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:20,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 08:13:20,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:20,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:20,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:20,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:20,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:20,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:20,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:20,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:20,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:13:20,428 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:13:20,428 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959739646] [2021-06-13 08:13:20,430 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959739646] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:13:20,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:13:20,430 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-13 08:13:20,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281215156] [2021-06-13 08:13:20,432 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-13 08:13:20,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:13:20,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-13 08:13:20,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2021-06-13 08:13:20,434 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2021-06-13 08:13:20,435 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 107 transitions, 631 flow. Second operand has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:20,435 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:13:20,435 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2021-06-13 08:13:20,435 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:13:22,377 INFO L129 PetriNetUnfolder]: 173/560 cut-off events. [2021-06-13 08:13:22,377 INFO L130 PetriNetUnfolder]: For 1875/1875 co-relation queries the response was YES. [2021-06-13 08:13:22,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2292 conditions, 560 events. 173/560 cut-off events. For 1875/1875 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2745 event pairs, 6 based on Foata normal form. 1/554 useless extension candidates. Maximal degree in co-relation 2245. Up to 82 conditions per place. [2021-06-13 08:13:22,382 INFO L132 encePairwiseOnDemand]: 56/92 looper letters, 74 selfloop transitions, 38 changer transitions 34/177 dead transitions. [2021-06-13 08:13:22,382 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 177 transitions, 1447 flow [2021-06-13 08:13:22,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-13 08:13:22,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-06-13 08:13:22,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 1185 transitions. [2021-06-13 08:13:22,390 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.3481198589894242 [2021-06-13 08:13:22,390 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 1185 transitions. [2021-06-13 08:13:22,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 1185 transitions. [2021-06-13 08:13:22,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:13:22,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 1185 transitions. [2021-06-13 08:13:22,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 32.027027027027025) internal successors, (1185), 37 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:22,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 92.0) internal successors, (3496), 38 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:22,395 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 92.0) internal successors, (3496), 38 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:22,395 INFO L185 Difference]: Start difference. First operand has 176 places, 107 transitions, 631 flow. Second operand 37 states and 1185 transitions. [2021-06-13 08:13:22,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 177 transitions, 1447 flow [2021-06-13 08:13:22,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 177 transitions, 1314 flow, removed 41 selfloop flow, removed 28 redundant places. [2021-06-13 08:13:22,404 INFO L241 Difference]: Finished difference. Result has 183 places, 110 transitions, 714 flow [2021-06-13 08:13:22,404 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=714, PETRI_PLACES=183, PETRI_TRANSITIONS=110} [2021-06-13 08:13:22,404 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 115 predicate places. [2021-06-13 08:13:22,404 INFO L482 AbstractCegarLoop]: Abstraction has has 183 places, 110 transitions, 714 flow [2021-06-13 08:13:22,405 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:22,405 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:13:22,405 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, 1, 1, 1] [2021-06-13 08:13:22,405 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-13 08:13:22,405 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:13:22,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:13:22,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1107726139, now seen corresponding path program 11 times [2021-06-13 08:13:22,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:13:22,406 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461563659] [2021-06-13 08:13:22,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:13:22,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:13:22,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:22,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:13:22,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:22,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:22,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:22,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:22,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:22,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:22,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:22,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:22,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:22,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:22,454 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:13:22,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:22,462 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:13:22,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:22,471 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:13:22,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:22,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:22,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:22,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:22,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:22,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:22,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:22,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:22,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:22,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:22,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:22,550 INFO L142 QuantifierPusher]: treesize reduction 2, result has 85.7 percent of original size [2021-06-13 08:13:22,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:22,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:22,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:22,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:22,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:22,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:22,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:22,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:22,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 08:13:22,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:22,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:22,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:22,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:22,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:22,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:22,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:22,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 08:13:22,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:22,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:22,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:22,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:22,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:22,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:22,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:22,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:22,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:13:22,850 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:13:22,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461563659] [2021-06-13 08:13:22,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461563659] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:13:22,850 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:13:22,850 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-13 08:13:22,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911683338] [2021-06-13 08:13:22,851 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-13 08:13:22,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:13:22,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-13 08:13:22,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=650, Unknown=0, NotChecked=0, Total=702 [2021-06-13 08:13:22,854 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2021-06-13 08:13:22,854 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 110 transitions, 714 flow. Second operand has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:22,854 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:13:22,854 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2021-06-13 08:13:22,854 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:13:24,812 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-06-13 08:13:25,176 INFO L129 PetriNetUnfolder]: 211/670 cut-off events. [2021-06-13 08:13:25,177 INFO L130 PetriNetUnfolder]: For 2440/2440 co-relation queries the response was YES. [2021-06-13 08:13:25,179 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2862 conditions, 670 events. 211/670 cut-off events. For 2440/2440 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3527 event pairs, 40 based on Foata normal form. 1/663 useless extension candidates. Maximal degree in co-relation 2814. Up to 284 conditions per place. [2021-06-13 08:13:25,181 INFO L132 encePairwiseOnDemand]: 56/92 looper letters, 65 selfloop transitions, 27 changer transitions 59/182 dead transitions. [2021-06-13 08:13:25,181 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 182 transitions, 1549 flow [2021-06-13 08:13:25,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-13 08:13:25,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-06-13 08:13:25,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 1150 transitions. [2021-06-13 08:13:25,183 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.3472222222222222 [2021-06-13 08:13:25,183 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 1150 transitions. [2021-06-13 08:13:25,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 1150 transitions. [2021-06-13 08:13:25,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:13:25,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 1150 transitions. [2021-06-13 08:13:25,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 31.944444444444443) internal successors, (1150), 36 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:25,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 92.0) internal successors, (3404), 37 states have internal predecessors, (3404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:25,188 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 92.0) internal successors, (3404), 37 states have internal predecessors, (3404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:25,188 INFO L185 Difference]: Start difference. First operand has 183 places, 110 transitions, 714 flow. Second operand 36 states and 1150 transitions. [2021-06-13 08:13:25,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 182 transitions, 1549 flow [2021-06-13 08:13:25,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 182 transitions, 1389 flow, removed 36 selfloop flow, removed 32 redundant places. [2021-06-13 08:13:25,197 INFO L241 Difference]: Finished difference. Result has 193 places, 116 transitions, 779 flow [2021-06-13 08:13:25,197 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=779, PETRI_PLACES=193, PETRI_TRANSITIONS=116} [2021-06-13 08:13:25,197 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 125 predicate places. [2021-06-13 08:13:25,197 INFO L482 AbstractCegarLoop]: Abstraction has has 193 places, 116 transitions, 779 flow [2021-06-13 08:13:25,198 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:25,198 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:13:25,198 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, 1, 1, 1] [2021-06-13 08:13:25,198 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-13 08:13:25,198 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:13:25,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:13:25,198 INFO L82 PathProgramCache]: Analyzing trace with hash 201224053, now seen corresponding path program 12 times [2021-06-13 08:13:25,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:13:25,198 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030865376] [2021-06-13 08:13:25,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:13:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:13:25,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:25,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:13:25,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:25,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:25,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:25,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:25,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:25,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:25,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:25,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:25,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:25,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:25,404 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:13:25,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:25,413 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:13:25,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:25,423 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:13:25,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:25,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:25,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:25,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:25,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:25,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:25,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:25,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:25,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:25,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:25,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:25,504 INFO L142 QuantifierPusher]: treesize reduction 2, result has 85.7 percent of original size [2021-06-13 08:13:25,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:25,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:25,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:25,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:25,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:25,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:25,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:25,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:25,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 08:13:25,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:25,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:25,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:25,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:25,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:25,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:25,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:25,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 08:13:25,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:25,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:25,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:25,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:25,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:25,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:25,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:25,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:25,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:13:25,773 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:13:25,773 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030865376] [2021-06-13 08:13:25,773 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030865376] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:13:25,773 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:13:25,773 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-13 08:13:25,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581772088] [2021-06-13 08:13:25,773 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-13 08:13:25,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:13:25,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-13 08:13:25,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=649, Unknown=0, NotChecked=0, Total=702 [2021-06-13 08:13:25,775 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2021-06-13 08:13:25,775 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 116 transitions, 779 flow. Second operand has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:25,775 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:13:25,775 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2021-06-13 08:13:25,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:13:28,313 INFO L129 PetriNetUnfolder]: 195/621 cut-off events. [2021-06-13 08:13:28,313 INFO L130 PetriNetUnfolder]: For 2501/2501 co-relation queries the response was YES. [2021-06-13 08:13:28,317 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2721 conditions, 621 events. 195/621 cut-off events. For 2501/2501 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3189 event pairs, 19 based on Foata normal form. 1/615 useless extension candidates. Maximal degree in co-relation 2665. Up to 139 conditions per place. [2021-06-13 08:13:28,318 INFO L132 encePairwiseOnDemand]: 56/92 looper letters, 58 selfloop transitions, 32 changer transitions 68/186 dead transitions. [2021-06-13 08:13:28,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 186 transitions, 1613 flow [2021-06-13 08:13:28,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-13 08:13:28,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-06-13 08:13:28,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 1182 transitions. [2021-06-13 08:13:28,320 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.3472385428907168 [2021-06-13 08:13:28,320 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 1182 transitions. [2021-06-13 08:13:28,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 1182 transitions. [2021-06-13 08:13:28,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:13:28,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 1182 transitions. [2021-06-13 08:13:28,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 31.945945945945947) internal successors, (1182), 37 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:28,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 92.0) internal successors, (3496), 38 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:28,327 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 92.0) internal successors, (3496), 38 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:28,327 INFO L185 Difference]: Start difference. First operand has 193 places, 116 transitions, 779 flow. Second operand 37 states and 1182 transitions. [2021-06-13 08:13:28,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 186 transitions, 1613 flow [2021-06-13 08:13:28,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 186 transitions, 1456 flow, removed 57 selfloop flow, removed 28 redundant places. [2021-06-13 08:13:28,337 INFO L241 Difference]: Finished difference. Result has 204 places, 112 transitions, 786 flow [2021-06-13 08:13:28,338 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=786, PETRI_PLACES=204, PETRI_TRANSITIONS=112} [2021-06-13 08:13:28,338 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 136 predicate places. [2021-06-13 08:13:28,338 INFO L482 AbstractCegarLoop]: Abstraction has has 204 places, 112 transitions, 786 flow [2021-06-13 08:13:28,339 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:28,339 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:13:28,339 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, 1, 1, 1] [2021-06-13 08:13:28,339 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-13 08:13:28,339 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:13:28,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:13:28,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1102100297, now seen corresponding path program 13 times [2021-06-13 08:13:28,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:13:28,340 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526186268] [2021-06-13 08:13:28,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:13:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:13:28,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:28,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:13:28,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:28,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:28,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:28,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:28,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:28,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:28,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:28,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:28,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:28,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:28,397 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-06-13 08:13:28,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 08:13:28,406 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-06-13 08:13:28,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 08:13:28,415 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-06-13 08:13:28,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 08:13:28,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:28,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 08:13:28,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:28,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 08:13:28,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:28,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 08:13:28,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:28,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 08:13:28,478 INFO L142 QuantifierPusher]: treesize reduction 7, result has 65.0 percent of original size [2021-06-13 08:13:28,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 08:13:28,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:28,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 08:13:28,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:28,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:28,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:28,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:28,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:28,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 08:13:28,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:28,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 08:13:28,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:28,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:28,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:28,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:28,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:28,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:28,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:28,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 08:13:28,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:28,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:28,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:28,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:28,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:28,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:28,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:28,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:28,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:13:28,772 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:13:28,772 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526186268] [2021-06-13 08:13:28,772 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526186268] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:13:28,772 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:13:28,772 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-13 08:13:28,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368653634] [2021-06-13 08:13:28,774 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-13 08:13:28,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:13:28,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-13 08:13:28,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2021-06-13 08:13:28,775 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2021-06-13 08:13:28,783 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 112 transitions, 786 flow. Second operand has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:28,783 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:13:28,783 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2021-06-13 08:13:28,784 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:13:30,626 INFO L129 PetriNetUnfolder]: 101/395 cut-off events. [2021-06-13 08:13:30,626 INFO L130 PetriNetUnfolder]: For 1844/1844 co-relation queries the response was YES. [2021-06-13 08:13:30,629 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1757 conditions, 395 events. 101/395 cut-off events. For 1844/1844 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1721 event pairs, 2 based on Foata normal form. 1/392 useless extension candidates. Maximal degree in co-relation 1697. Up to 48 conditions per place. [2021-06-13 08:13:30,630 INFO L132 encePairwiseOnDemand]: 56/92 looper letters, 53 selfloop transitions, 42 changer transitions 40/161 dead transitions. [2021-06-13 08:13:30,630 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 161 transitions, 1350 flow [2021-06-13 08:13:30,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-13 08:13:30,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-06-13 08:13:30,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 1209 transitions. [2021-06-13 08:13:30,632 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.3458237986270023 [2021-06-13 08:13:30,632 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 1209 transitions. [2021-06-13 08:13:30,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 1209 transitions. [2021-06-13 08:13:30,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:13:30,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 1209 transitions. [2021-06-13 08:13:30,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 31.81578947368421) internal successors, (1209), 38 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:30,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 92.0) internal successors, (3588), 39 states have internal predecessors, (3588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:30,637 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 92.0) internal successors, (3588), 39 states have internal predecessors, (3588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:30,637 INFO L185 Difference]: Start difference. First operand has 204 places, 112 transitions, 786 flow. Second operand 38 states and 1209 transitions. [2021-06-13 08:13:30,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 161 transitions, 1350 flow [2021-06-13 08:13:30,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 161 transitions, 1188 flow, removed 53 selfloop flow, removed 32 redundant places. [2021-06-13 08:13:30,646 INFO L241 Difference]: Finished difference. Result has 202 places, 106 transitions, 766 flow [2021-06-13 08:13:30,647 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=664, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=766, PETRI_PLACES=202, PETRI_TRANSITIONS=106} [2021-06-13 08:13:30,647 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 134 predicate places. [2021-06-13 08:13:30,647 INFO L482 AbstractCegarLoop]: Abstraction has has 202 places, 106 transitions, 766 flow [2021-06-13 08:13:30,647 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:30,647 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:13:30,647 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, 1, 1, 1] [2021-06-13 08:13:30,647 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-13 08:13:30,647 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:13:30,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:13:30,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1348911111, now seen corresponding path program 14 times [2021-06-13 08:13:30,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:13:30,648 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954072296] [2021-06-13 08:13:30,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:13:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:13:30,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:30,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:13:30,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:30,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:30,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:30,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:30,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:30,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:30,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:30,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:30,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:30,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:30,703 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:13:30,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:30,711 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:13:30,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:30,721 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:13:30,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:30,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:30,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:30,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:30,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:30,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:30,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:30,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:30,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:30,786 INFO L142 QuantifierPusher]: treesize reduction 2, result has 87.5 percent of original size [2021-06-13 08:13:30,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 08:13:30,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:30,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:30,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:30,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:30,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:30,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:30,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:30,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 08:13:30,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:30,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 08:13:30,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:30,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 08:13:30,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:30,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:30,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:30,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:30,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:30,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 08:13:30,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:30,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:30,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:30,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:31,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:31,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:31,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:31,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:31,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:13:31,053 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:13:31,053 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954072296] [2021-06-13 08:13:31,053 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954072296] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:13:31,053 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:13:31,053 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-13 08:13:31,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007217925] [2021-06-13 08:13:31,053 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-13 08:13:31,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:13:31,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-13 08:13:31,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-13 08:13:31,059 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2021-06-13 08:13:31,060 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 106 transitions, 766 flow. Second operand has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:31,060 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:13:31,060 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2021-06-13 08:13:31,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:13:33,336 INFO L129 PetriNetUnfolder]: 80/336 cut-off events. [2021-06-13 08:13:33,336 INFO L130 PetriNetUnfolder]: For 1754/1755 co-relation queries the response was YES. [2021-06-13 08:13:33,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1579 conditions, 336 events. 80/336 cut-off events. For 1754/1755 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1420 event pairs, 3 based on Foata normal form. 2/335 useless extension candidates. Maximal degree in co-relation 1521. Up to 44 conditions per place. [2021-06-13 08:13:33,339 INFO L132 encePairwiseOnDemand]: 57/92 looper letters, 50 selfloop transitions, 46 changer transitions 20/142 dead transitions. [2021-06-13 08:13:33,340 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 142 transitions, 1278 flow [2021-06-13 08:13:33,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-13 08:13:33,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-06-13 08:13:33,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 1137 transitions. [2021-06-13 08:13:33,341 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.3432971014492754 [2021-06-13 08:13:33,341 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 1137 transitions. [2021-06-13 08:13:33,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 1137 transitions. [2021-06-13 08:13:33,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:13:33,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 1137 transitions. [2021-06-13 08:13:33,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 31.583333333333332) internal successors, (1137), 36 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:33,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 92.0) internal successors, (3404), 37 states have internal predecessors, (3404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:33,357 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 92.0) internal successors, (3404), 37 states have internal predecessors, (3404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:33,358 INFO L185 Difference]: Start difference. First operand has 202 places, 106 transitions, 766 flow. Second operand 36 states and 1137 transitions. [2021-06-13 08:13:33,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 142 transitions, 1278 flow [2021-06-13 08:13:33,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 142 transitions, 1121 flow, removed 32 selfloop flow, removed 37 redundant places. [2021-06-13 08:13:33,370 INFO L241 Difference]: Finished difference. Result has 191 places, 105 transitions, 747 flow [2021-06-13 08:13:33,370 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=747, PETRI_PLACES=191, PETRI_TRANSITIONS=105} [2021-06-13 08:13:33,370 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 123 predicate places. [2021-06-13 08:13:33,370 INFO L482 AbstractCegarLoop]: Abstraction has has 191 places, 105 transitions, 747 flow [2021-06-13 08:13:33,371 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:33,371 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:13:33,371 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, 1, 1, 1] [2021-06-13 08:13:33,371 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-13 08:13:33,371 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:13:33,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:13:33,372 INFO L82 PathProgramCache]: Analyzing trace with hash 247598847, now seen corresponding path program 15 times [2021-06-13 08:13:33,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:13:33,372 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727414813] [2021-06-13 08:13:33,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:13:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:13:33,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:33,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:13:33,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:33,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:33,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:33,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:33,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:33,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:33,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:33,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:33,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:33,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:33,465 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:13:33,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:33,474 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:13:33,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:33,483 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:13:33,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:33,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:33,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:33,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:33,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:33,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:33,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:33,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:33,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:33,550 INFO L142 QuantifierPusher]: treesize reduction 2, result has 87.5 percent of original size [2021-06-13 08:13:33,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 08:13:33,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:33,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:33,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:33,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:33,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:33,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:33,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:33,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 08:13:33,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:33,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 08:13:33,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:33,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:33,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:33,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:33,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:33,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:33,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:33,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 08:13:33,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:33,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:33,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:33,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:33,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:33,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:33,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:33,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:33,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:13:33,831 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:13:33,831 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727414813] [2021-06-13 08:13:33,831 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727414813] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:13:33,831 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:13:33,831 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-13 08:13:33,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012250731] [2021-06-13 08:13:33,831 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-13 08:13:33,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:13:33,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-13 08:13:33,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-13 08:13:33,833 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2021-06-13 08:13:33,833 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 105 transitions, 747 flow. Second operand has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:33,833 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:13:33,833 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2021-06-13 08:13:33,833 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:13:36,370 INFO L129 PetriNetUnfolder]: 78/334 cut-off events. [2021-06-13 08:13:36,370 INFO L130 PetriNetUnfolder]: For 1575/1575 co-relation queries the response was YES. [2021-06-13 08:13:36,372 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1554 conditions, 334 events. 78/334 cut-off events. For 1575/1575 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1390 event pairs, 4 based on Foata normal form. 1/333 useless extension candidates. Maximal degree in co-relation 1501. Up to 43 conditions per place. [2021-06-13 08:13:36,374 INFO L132 encePairwiseOnDemand]: 56/92 looper letters, 49 selfloop transitions, 44 changer transitions 24/143 dead transitions. [2021-06-13 08:13:36,374 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 143 transitions, 1227 flow [2021-06-13 08:13:36,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-13 08:13:36,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-06-13 08:13:36,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 1199 transitions. [2021-06-13 08:13:36,378 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.3429633867276888 [2021-06-13 08:13:36,378 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 1199 transitions. [2021-06-13 08:13:36,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 1199 transitions. [2021-06-13 08:13:36,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:13:36,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 1199 transitions. [2021-06-13 08:13:36,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 31.55263157894737) internal successors, (1199), 38 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:36,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 92.0) internal successors, (3588), 39 states have internal predecessors, (3588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:36,386 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 92.0) internal successors, (3588), 39 states have internal predecessors, (3588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:36,386 INFO L185 Difference]: Start difference. First operand has 191 places, 105 transitions, 747 flow. Second operand 38 states and 1199 transitions. [2021-06-13 08:13:36,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 143 transitions, 1227 flow [2021-06-13 08:13:36,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 143 transitions, 1036 flow, removed 23 selfloop flow, removed 36 redundant places. [2021-06-13 08:13:36,394 INFO L241 Difference]: Finished difference. Result has 194 places, 104 transitions, 712 flow [2021-06-13 08:13:36,394 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=593, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=712, PETRI_PLACES=194, PETRI_TRANSITIONS=104} [2021-06-13 08:13:36,394 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 126 predicate places. [2021-06-13 08:13:36,394 INFO L482 AbstractCegarLoop]: Abstraction has has 194 places, 104 transitions, 712 flow [2021-06-13 08:13:36,421 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:36,421 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:13:36,421 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, 1, 1, 1] [2021-06-13 08:13:36,421 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-13 08:13:36,421 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:13:36,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:13:36,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1726706921, now seen corresponding path program 16 times [2021-06-13 08:13:36,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:13:36,423 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714318297] [2021-06-13 08:13:36,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:13:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:13:36,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:36,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:13:36,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:36,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:36,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:36,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:36,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:36,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:36,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:36,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:36,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:36,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:36,509 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:13:36,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:36,517 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:13:36,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:36,527 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-06-13 08:13:36,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:36,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:36,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 08:13:36,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:36,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:36,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:36,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:36,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:36,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:36,592 INFO L142 QuantifierPusher]: treesize reduction 2, result has 87.5 percent of original size [2021-06-13 08:13:36,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 08:13:36,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:36,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:36,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:36,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:36,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:36,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 08:13:36,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:36,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 08:13:36,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:36,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 08:13:36,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:36,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:36,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:36,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:36,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:36,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:36,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:36,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 08:13:36,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:36,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:36,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:36,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:36,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:36,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:36,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:36,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:36,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:13:36,884 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:13:36,884 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714318297] [2021-06-13 08:13:36,884 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714318297] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:13:36,884 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:13:36,884 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-13 08:13:36,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155457953] [2021-06-13 08:13:36,885 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-13 08:13:36,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:13:36,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-13 08:13:36,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-13 08:13:36,886 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2021-06-13 08:13:36,886 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 104 transitions, 712 flow. Second operand has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:36,886 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:13:36,886 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2021-06-13 08:13:36,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:13:39,116 INFO L129 PetriNetUnfolder]: 69/307 cut-off events. [2021-06-13 08:13:39,117 INFO L130 PetriNetUnfolder]: For 1046/1047 co-relation queries the response was YES. [2021-06-13 08:13:39,119 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1396 conditions, 307 events. 69/307 cut-off events. For 1046/1047 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1281 event pairs, 4 based on Foata normal form. 1/306 useless extension candidates. Maximal degree in co-relation 1341. Up to 43 conditions per place. [2021-06-13 08:13:39,122 INFO L132 encePairwiseOnDemand]: 57/92 looper letters, 42 selfloop transitions, 43 changer transitions 21/132 dead transitions. [2021-06-13 08:13:39,123 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 132 transitions, 1078 flow [2021-06-13 08:13:39,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-13 08:13:39,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2021-06-13 08:13:39,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 1101 transitions. [2021-06-13 08:13:39,125 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.3419254658385093 [2021-06-13 08:13:39,125 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 1101 transitions. [2021-06-13 08:13:39,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 1101 transitions. [2021-06-13 08:13:39,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:13:39,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 1101 transitions. [2021-06-13 08:13:39,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 31.457142857142856) internal successors, (1101), 35 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:39,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 92.0) internal successors, (3312), 36 states have internal predecessors, (3312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:39,129 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 92.0) internal successors, (3312), 36 states have internal predecessors, (3312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:39,129 INFO L185 Difference]: Start difference. First operand has 194 places, 104 transitions, 712 flow. Second operand 35 states and 1101 transitions. [2021-06-13 08:13:39,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 132 transitions, 1078 flow [2021-06-13 08:13:39,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 132 transitions, 936 flow, removed 26 selfloop flow, removed 35 redundant places. [2021-06-13 08:13:39,137 INFO L241 Difference]: Finished difference. Result has 188 places, 101 transitions, 665 flow [2021-06-13 08:13:39,137 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=595, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=665, PETRI_PLACES=188, PETRI_TRANSITIONS=101} [2021-06-13 08:13:39,137 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 120 predicate places. [2021-06-13 08:13:39,137 INFO L482 AbstractCegarLoop]: Abstraction has has 188 places, 101 transitions, 665 flow [2021-06-13 08:13:39,137 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 30.666666666666668) internal successors, (828), 27 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:39,137 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:13:39,138 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, 1, 1, 1] [2021-06-13 08:13:39,138 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-13 08:13:39,138 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:13:39,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:13:39,138 INFO L82 PathProgramCache]: Analyzing trace with hash -171026625, now seen corresponding path program 17 times [2021-06-13 08:13:39,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:13:39,138 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670663776] [2021-06-13 08:13:39,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:13:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:13:39,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:13:39,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:39,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:39,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:39,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 08:13:39,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 08:13:39,255 INFO L142 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size [2021-06-13 08:13:39,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 08:13:39,277 INFO L142 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size [2021-06-13 08:13:39,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 08:13:39,287 INFO L142 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size [2021-06-13 08:13:39,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 08:13:39,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 08:13:39,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 08:13:39,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 08:13:39,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 08:13:39,388 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-13 08:13:39,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 08:13:39,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 08:13:39,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 08:13:39,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 08:13:39,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-13 08:13:39,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 08:13:39,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-13 08:13:39,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 08:13:39,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 08:13:39,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:39,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:39,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 08:13:39,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:39,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:39,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:39,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:39,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:39,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:13:39,838 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:13:39,838 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670663776] [2021-06-13 08:13:39,838 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670663776] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:13:39,838 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:13:39,839 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-06-13 08:13:39,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433653288] [2021-06-13 08:13:39,840 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-13 08:13:39,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:13:39,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-13 08:13:39,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2021-06-13 08:13:39,841 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 92 [2021-06-13 08:13:39,842 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 101 transitions, 665 flow. Second operand has 30 states, 30 states have (on average 29.533333333333335) internal successors, (886), 30 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:39,842 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:13:39,842 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 92 [2021-06-13 08:13:39,842 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:13:41,696 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2021-06-13 08:13:42,387 INFO L129 PetriNetUnfolder]: 66/276 cut-off events. [2021-06-13 08:13:42,387 INFO L130 PetriNetUnfolder]: For 807/807 co-relation queries the response was YES. [2021-06-13 08:13:42,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1250 conditions, 276 events. 66/276 cut-off events. For 807/807 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1165 event pairs, 0 based on Foata normal form. 1/275 useless extension candidates. Maximal degree in co-relation 1197. Up to 43 conditions per place. [2021-06-13 08:13:42,389 INFO L132 encePairwiseOnDemand]: 53/92 looper letters, 0 selfloop transitions, 0 changer transitions 119/119 dead transitions. [2021-06-13 08:13:42,389 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 119 transitions, 925 flow [2021-06-13 08:13:42,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-13 08:13:42,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2021-06-13 08:13:42,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 1250 transitions. [2021-06-13 08:13:42,390 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.32349896480331264 [2021-06-13 08:13:42,390 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 1250 transitions. [2021-06-13 08:13:42,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 1250 transitions. [2021-06-13 08:13:42,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:13:42,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 1250 transitions. [2021-06-13 08:13:42,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 29.761904761904763) internal successors, (1250), 42 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:42,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 92.0) internal successors, (3956), 43 states have internal predecessors, (3956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:42,394 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 92.0) internal successors, (3956), 43 states have internal predecessors, (3956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:42,395 INFO L185 Difference]: Start difference. First operand has 188 places, 101 transitions, 665 flow. Second operand 42 states and 1250 transitions. [2021-06-13 08:13:42,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 119 transitions, 925 flow [2021-06-13 08:13:42,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 119 transitions, 801 flow, removed 16 selfloop flow, removed 36 redundant places. [2021-06-13 08:13:42,403 INFO L241 Difference]: Finished difference. Result has 177 places, 0 transitions, 0 flow [2021-06-13 08:13:42,403 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=0, PETRI_PLACES=177, PETRI_TRANSITIONS=0} [2021-06-13 08:13:42,403 INFO L335 CegarLoopForPetriNet]: 68 programPoint places, 109 predicate places. [2021-06-13 08:13:42,403 INFO L482 AbstractCegarLoop]: Abstraction has has 177 places, 0 transitions, 0 flow [2021-06-13 08:13:42,404 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 29.533333333333335) internal successors, (886), 30 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:42,404 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-13 08:13:42,404 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (4/5) [2021-06-13 08:13:42,404 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-13 08:13:42,405 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 08:13:42,405 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 08:13:42,405 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 08:13:42,405 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 08:13:42,405 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 08:13:42,405 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 08:13:42,405 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 08:13:42,405 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == barThread1of1ForFork0======== [2021-06-13 08:13:42,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 89 transitions, 206 flow [2021-06-13 08:13:42,412 INFO L129 PetriNetUnfolder]: 2/95 cut-off events. [2021-06-13 08:13:42,413 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-13 08:13:42,413 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 95 events. 2/95 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 58 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 68. Up to 5 conditions per place. [2021-06-13 08:13:42,413 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 89 transitions, 206 flow [2021-06-13 08:13:42,413 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 33 transitions, 72 flow [2021-06-13 08:13:42,415 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2021-06-13 08:13:42,415 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 08:13:42,416 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:13:42,416 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] [2021-06-13 08:13:42,416 INFO L430 AbstractCegarLoop]: === Iteration 1 === [barErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:13:42,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:13:42,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1964643420, now seen corresponding path program 1 times [2021-06-13 08:13:42,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:13:42,416 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755181520] [2021-06-13 08:13:42,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:13:42,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:13:42,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:42,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:13:42,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:42,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 08:13:42,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:42,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 08:13:42,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:42,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 08:13:42,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:42,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 08:13:42,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:42,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 08:13:42,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:42,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 08:13:42,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:42,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:42,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:42,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 08:13:42,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:42,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 08:13:42,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:42,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:42,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:42,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:42,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:42,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:42,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:42,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 08:13:42,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:42,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:42,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:13:42,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:13:42,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:13:42,569 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:13:42,569 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755181520] [2021-06-13 08:13:42,569 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755181520] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:13:42,569 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:13:42,569 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-06-13 08:13:42,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008079253] [2021-06-13 08:13:42,571 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-13 08:13:42,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:13:42,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-13 08:13:42,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2021-06-13 08:13:42,572 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 92 [2021-06-13 08:13:42,572 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 72 flow. Second operand has 17 states, 17 states have (on average 51.1764705882353) internal successors, (870), 17 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:42,573 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:13:42,573 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 92 [2021-06-13 08:13:42,573 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:13:43,038 INFO L129 PetriNetUnfolder]: 78/172 cut-off events. [2021-06-13 08:13:43,039 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 08:13:43,039 INFO L84 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 172 events. 78/172 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 599 event pairs, 0 based on Foata normal form. 9/181 useless extension candidates. Maximal degree in co-relation 318. Up to 25 conditions per place. [2021-06-13 08:13:43,039 INFO L132 encePairwiseOnDemand]: 77/92 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2021-06-13 08:13:43,039 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 62 transitions, 236 flow [2021-06-13 08:13:43,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 08:13:43,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-06-13 08:13:43,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 854 transitions. [2021-06-13 08:13:43,041 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5801630434782609 [2021-06-13 08:13:43,041 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 854 transitions. [2021-06-13 08:13:43,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 854 transitions. [2021-06-13 08:13:43,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:13:43,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 854 transitions. [2021-06-13 08:13:43,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 53.375) internal successors, (854), 16 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:43,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 92.0) internal successors, (1564), 17 states have internal predecessors, (1564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:43,043 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 92.0) internal successors, (1564), 17 states have internal predecessors, (1564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:43,043 INFO L185 Difference]: Start difference. First operand has 40 places, 33 transitions, 72 flow. Second operand 16 states and 854 transitions. [2021-06-13 08:13:43,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 62 transitions, 236 flow [2021-06-13 08:13:43,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 62 transitions, 234 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-13 08:13:43,044 INFO L241 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2021-06-13 08:13:43,044 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2021-06-13 08:13:43,044 INFO L335 CegarLoopForPetriNet]: 40 programPoint places, 12 predicate places. [2021-06-13 08:13:43,044 INFO L482 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2021-06-13 08:13:43,045 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 51.1764705882353) internal successors, (870), 17 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:13:43,045 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-13 08:13:43,045 INFO L301 ceAbstractionStarter]: Result for error location barThread1of1ForFork0 was SAFE (5/5) [2021-06-13 08:13:43,046 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-13 08:13:43,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.06 08:13:43 BasicIcfg [2021-06-13 08:13:43,049 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-13 08:13:43,050 INFO L168 Benchmark]: Toolchain (without parser) took 61524.30 ms. Allocated memory was 205.5 MB in the beginning and 540.0 MB in the end (delta: 334.5 MB). Free memory was 167.7 MB in the beginning and 511.2 MB in the end (delta: -343.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 08:13:43,050 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 205.5 MB. Free memory is still 186.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 08:13:43,050 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.13 ms. Allocated memory is still 205.5 MB. Free memory was 167.5 MB in the beginning and 188.4 MB in the end (delta: -20.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-06-13 08:13:43,050 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.07 ms. Allocated memory is still 205.5 MB. Free memory was 188.4 MB in the beginning and 187.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 08:13:43,051 INFO L168 Benchmark]: Boogie Preprocessor took 31.43 ms. Allocated memory is still 205.5 MB. Free memory was 187.2 MB in the beginning and 185.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-13 08:13:43,051 INFO L168 Benchmark]: RCFGBuilder took 471.53 ms. Allocated memory is still 205.5 MB. Free memory was 185.8 MB in the beginning and 163.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-06-13 08:13:43,051 INFO L168 Benchmark]: TraceAbstraction took 60690.82 ms. Allocated memory was 205.5 MB in the beginning and 540.0 MB in the end (delta: 334.5 MB). Free memory was 163.3 MB in the beginning and 511.2 MB in the end (delta: -347.9 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 08:13:43,052 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 205.5 MB. Free memory is still 186.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 293.13 ms. Allocated memory is still 205.5 MB. Free memory was 167.5 MB in the beginning and 188.4 MB in the end (delta: -20.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 31.07 ms. Allocated memory is still 205.5 MB. Free memory was 188.4 MB in the beginning and 187.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 31.43 ms. Allocated memory is still 205.5 MB. Free memory was 187.2 MB in the beginning and 185.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 471.53 ms. Allocated memory is still 205.5 MB. Free memory was 185.8 MB in the beginning and 163.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 60690.82 ms. Allocated memory was 205.5 MB in the beginning and 540.0 MB in the end (delta: 334.5 MB). Free memory was 163.3 MB in the beginning and 511.2 MB in the end (delta: -347.9 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 45]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: fooThread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 115 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 58.5ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 51.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, 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: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: bar with 1 thread instances CFG has 5 procedures, 115 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 22.6ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 20.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, 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: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: foo with 1 thread instances CFG has 5 procedures, 115 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 20.4ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, 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: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 115 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 59703.6ms, OverallIterations: 23, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 48015.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 24.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 971 SDtfs, 4636 SDslu, 10676 SDs, 0 SdLazy, 22306 SolverSat, 887 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11362.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1198 GetRequests, 47 SyntacticMatches, 6 SemanticMatches, 1145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9101 ImplicationChecksByTransitivity, 39418.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=931occurred in iteration=8, InterpolantAutomatonStates: 761, 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: 60.5ms SsaConstructionTime, 376.1ms SatisfiabilityAnalysisTime, 10921.3ms InterpolantComputationTime, 1328 NumberOfCodeBlocks, 1328 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 1305 ConstructedInterpolants, 0 QuantifiedInterpolants, 15659 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 23 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: barThread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 115 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 1.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 640.1ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 473.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 10 SDtfs, 105 SDslu, 63 SDs, 0 SdLazy, 303 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 143.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 393.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8ms SsaConstructionTime, 2.9ms SatisfiabilityAnalysisTime, 146.8ms InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 213 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...