/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/forkFork.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 20:27:59,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 20:27:59,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 20:27:59,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 20:27:59,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 20:27:59,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 20:27:59,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 20:27:59,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 20:27:59,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 20:27:59,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 20:27:59,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 20:27:59,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 20:27:59,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 20:27:59,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 20:27:59,896 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 20:27:59,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 20:27:59,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 20:27:59,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 20:27:59,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 20:27:59,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 20:27:59,914 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-FA-NoLbe.epf [2021-06-05 20:27:59,934 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 20:27:59,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 20:27:59,935 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 20:27:59,935 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 20:27:59,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 20:27:59,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 20:27:59,937 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 20:27:59,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 20:27:59,937 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 20:27:59,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 20:27:59,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 20:27:59,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 20:27:59,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 20:27:59,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 20:27:59,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 20:27:59,938 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 20:27:59,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 20:27:59,939 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 20:27:59,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 20:27:59,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 20:27:59,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 20:27:59,939 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 20:27:59,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 20:27:59,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 20:27:59,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 20:27:59,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 20:27:59,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 20:27:59,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 20:27:59,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 20:27:59,940 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 20:27:59,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 20:27:59,940 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 20:28:00,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 20:28:00,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 20:28:00,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 20:28:00,187 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 20:28:00,188 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 20:28:00,189 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkFork.c [2021-06-05 20:28:00,240 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a79953a1/98f19921a0fd4aebbba7ee69a81a47cd/FLAG05a9e8b68 [2021-06-05 20:28:00,549 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 20:28:00,550 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkFork.c [2021-06-05 20:28:00,550 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-05 20:28:00,550 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-05 20:28:00,575 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a79953a1/98f19921a0fd4aebbba7ee69a81a47cd/FLAG05a9e8b68 [2021-06-05 20:28:00,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a79953a1/98f19921a0fd4aebbba7ee69a81a47cd [2021-06-05 20:28:00,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 20:28:00,971 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 20:28:00,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 20:28:00,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 20:28:00,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 20:28:00,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:28:00" (1/1) ... [2021-06-05 20:28:00,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39e6ecbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:28:00, skipping insertion in model container [2021-06-05 20:28:00,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:28:00" (1/1) ... [2021-06-05 20:28:00,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 20:28:00,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 20:28:01,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 20:28:01,130 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 20:28:01,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 20:28:01,156 INFO L208 MainTranslator]: Completed translation [2021-06-05 20:28:01,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:28:01 WrapperNode [2021-06-05 20:28:01,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 20:28:01,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 20:28:01,157 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 20:28:01,157 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 20:28:01,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:28:01" (1/1) ... [2021-06-05 20:28:01,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:28:01" (1/1) ... [2021-06-05 20:28:01,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 20:28:01,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 20:28:01,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 20:28:01,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 20:28:01,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:28:01" (1/1) ... [2021-06-05 20:28:01,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:28:01" (1/1) ... [2021-06-05 20:28:01,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:28:01" (1/1) ... [2021-06-05 20:28:01,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:28:01" (1/1) ... [2021-06-05 20:28:01,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:28:01" (1/1) ... [2021-06-05 20:28:01,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:28:01" (1/1) ... [2021-06-05 20:28:01,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:28:01" (1/1) ... [2021-06-05 20:28:01,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 20:28:01,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 20:28:01,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 20:28:01,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 20:28:01,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:28:01" (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 [2021-06-05 20:28:01,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-06-05 20:28:01,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 20:28:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2021-06-05 20:28:01,253 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2021-06-05 20:28:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-05 20:28:01,255 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-05 20:28:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 20:28:01,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 20:28:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 20:28:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 20:28:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-06-05 20:28:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 20:28:01,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 20:28:01,257 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 20:28:01,561 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 20:28:01,561 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-05 20:28:01,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:28:01 BoogieIcfgContainer [2021-06-05 20:28:01,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 20:28:01,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 20:28:01,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 20:28:01,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 20:28:01,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 08:28:00" (1/3) ... [2021-06-05 20:28:01,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2af03b95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:28:01, skipping insertion in model container [2021-06-05 20:28:01,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:28:01" (2/3) ... [2021-06-05 20:28:01,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2af03b95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:28:01, skipping insertion in model container [2021-06-05 20:28:01,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:28:01" (3/3) ... [2021-06-05 20:28:01,568 INFO L111 eAbstractionObserver]: Analyzing ICFG forkFork.c [2021-06-05 20:28:01,572 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 20:28:01,572 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 20:28:01,572 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-06-05 20:28:01,573 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 20:28:01,602 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,603 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,603 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,603 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,603 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,603 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,603 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,603 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,604 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,604 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,604 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,604 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,604 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,604 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,604 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,604 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,604 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,604 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,604 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,605 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,605 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,605 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,606 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,606 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,606 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,606 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,606 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,606 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,606 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,607 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,608 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,608 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,608 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,608 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,608 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,609 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,609 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,609 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,609 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,609 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,609 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,609 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,609 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,610 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,611 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,611 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,611 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,612 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,612 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,612 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,612 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,612 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,612 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,612 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,614 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,614 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,614 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,614 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,614 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,614 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,614 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,615 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,615 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,615 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,615 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,615 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,615 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,615 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,616 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,616 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,616 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,616 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,616 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,616 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,617 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,617 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,617 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,617 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,617 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,617 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,617 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,618 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,618 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,618 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,618 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,618 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,618 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,619 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,619 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,619 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,619 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,619 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,619 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,619 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,619 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,619 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,620 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,621 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,622 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,623 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,623 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,624 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,628 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,628 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,630 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,630 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,630 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,630 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,631 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,631 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,631 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,631 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,631 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,631 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,631 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,631 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,631 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,631 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,631 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,631 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,631 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,632 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,632 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,632 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,632 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,632 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,632 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,632 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,632 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,632 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,632 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,632 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,632 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,633 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,633 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,633 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,633 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,633 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,633 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,633 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,633 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,633 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,635 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,636 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,636 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,636 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,636 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,636 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,636 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,636 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,636 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,640 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,640 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,640 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,640 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,640 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,640 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,641 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,641 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,641 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,641 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,641 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,641 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,641 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,641 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,641 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,641 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,641 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,645 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,645 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,645 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,645 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,645 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,645 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,645 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,646 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,646 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:28:01,670 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-06-05 20:28:01,685 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 20:28:01,708 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:28:01,709 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:28:01,709 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:28:01,709 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:28:01,709 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:28:01,709 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:28:01,709 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:28:01,709 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == fooThread1of1ForFork1======== [2021-06-05 20:28:01,719 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 89 transitions, 206 flow [2021-06-05 20:28:01,752 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 477 states, 472 states have (on average 2.1440677966101696) internal successors, (1012), 476 states have internal predecessors, (1012), 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) [2021-06-05 20:28:01,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 477 states, 472 states have (on average 2.1440677966101696) internal successors, (1012), 476 states have internal predecessors, (1012), 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) [2021-06-05 20:28:01,770 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 20:28:01,770 INFO L301 ceAbstractionStarter]: Result for error location fooThread1of1ForFork1 was SAFE (1/5) [2021-06-05 20:28:01,772 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 20:28:01,776 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:28:01,777 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:28:01,777 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:28:01,777 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:28:01,777 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:28:01,777 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:28:01,777 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:28:01,777 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == bar======== [2021-06-05 20:28:01,779 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 89 transitions, 206 flow [2021-06-05 20:28:01,786 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 477 states, 472 states have (on average 2.1440677966101696) internal successors, (1012), 476 states have internal predecessors, (1012), 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) [2021-06-05 20:28:01,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 477 states, 472 states have (on average 2.1440677966101696) internal successors, (1012), 476 states have internal predecessors, (1012), 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) [2021-06-05 20:28:01,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 20:28:01,788 INFO L301 ceAbstractionStarter]: Result for error location bar was SAFE (2/5) [2021-06-05 20:28:01,788 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 20:28:01,796 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:28:01,796 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:28:01,796 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:28:01,796 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:28:01,796 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:28:01,796 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:28:01,796 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:28:01,797 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == foo======== [2021-06-05 20:28:01,802 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 89 transitions, 206 flow [2021-06-05 20:28:01,809 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 477 states, 472 states have (on average 2.1440677966101696) internal successors, (1012), 476 states have internal predecessors, (1012), 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) [2021-06-05 20:28:01,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 477 states, 472 states have (on average 2.1440677966101696) internal successors, (1012), 476 states have internal predecessors, (1012), 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) [2021-06-05 20:28:01,811 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 20:28:01,811 INFO L301 ceAbstractionStarter]: Result for error location foo was SAFE (3/5) [2021-06-05 20:28:01,811 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 20:28:01,812 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:28:01,812 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:28:01,812 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:28:01,812 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:28:01,812 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:28:01,812 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:28:01,812 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:28:01,812 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 20:28:01,814 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 89 transitions, 206 flow [2021-06-05 20:28:01,819 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 477 states, 472 states have (on average 2.1440677966101696) internal successors, (1012), 476 states have internal predecessors, (1012), 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) [2021-06-05 20:28:01,820 INFO L276 IsEmpty]: Start isEmpty. Operand has 477 states, 472 states have (on average 2.1440677966101696) internal successors, (1012), 476 states have internal predecessors, (1012), 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) [2021-06-05 20:28:01,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 20:28:01,821 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:01,822 INFO L554 BasicCegarLoop]: 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] [2021-06-05 20:28:01,822 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:01,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:01,825 INFO L82 PathProgramCache]: Analyzing trace with hash 982709772, now seen corresponding path program 1 times [2021-06-05 20:28:01,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:01,831 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183426024] [2021-06-05 20:28:01,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:02,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:28:02,198 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:02,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183426024] [2021-06-05 20:28:02,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183426024] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:02,199 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:02,199 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 20:28:02,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804657992] [2021-06-05 20:28:02,202 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 20:28:02,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:02,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 20:28:02,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-05 20:28:02,212 INFO L87 Difference]: Start difference. First operand has 477 states, 472 states have (on average 2.1440677966101696) internal successors, (1012), 476 states have internal predecessors, (1012), 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) Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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) [2021-06-05 20:28:02,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:02,539 INFO L93 Difference]: Finished difference Result 547 states and 1119 transitions. [2021-06-05 20:28:02,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 20:28:02,540 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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) Word has length 46 [2021-06-05 20:28:02,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:02,553 INFO L225 Difference]: With dead ends: 547 [2021-06-05 20:28:02,553 INFO L226 Difference]: Without dead ends: 473 [2021-06-05 20:28:02,554 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 251.1ms TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-06-05 20:28:02,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2021-06-05 20:28:02,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 458. [2021-06-05 20:28:02,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 456 states have (on average 2.1184210526315788) internal successors, (966), 457 states have internal predecessors, (966), 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) [2021-06-05 20:28:02,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 966 transitions. [2021-06-05 20:28:02,599 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 966 transitions. Word has length 46 [2021-06-05 20:28:02,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:02,599 INFO L482 AbstractCegarLoop]: Abstraction has 458 states and 966 transitions. [2021-06-05 20:28:02,599 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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) [2021-06-05 20:28:02,600 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 966 transitions. [2021-06-05 20:28:02,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 20:28:02,607 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:02,607 INFO L554 BasicCegarLoop]: 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] [2021-06-05 20:28:02,607 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 20:28:02,607 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:02,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:02,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1272071898, now seen corresponding path program 2 times [2021-06-05 20:28:02,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:02,608 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161225641] [2021-06-05 20:28:02,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:03,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:28:03,098 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:03,098 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161225641] [2021-06-05 20:28:03,098 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161225641] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:03,098 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:03,098 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-06-05 20:28:03,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784506816] [2021-06-05 20:28:03,099 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-05 20:28:03,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:03,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-05 20:28:03,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-06-05 20:28:03,099 INFO L87 Difference]: Start difference. First operand 458 states and 966 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 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) [2021-06-05 20:28:03,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:03,729 INFO L93 Difference]: Finished difference Result 535 states and 1093 transitions. [2021-06-05 20:28:03,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 20:28:03,729 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 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) Word has length 46 [2021-06-05 20:28:03,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:03,732 INFO L225 Difference]: With dead ends: 535 [2021-06-05 20:28:03,732 INFO L226 Difference]: Without dead ends: 535 [2021-06-05 20:28:03,733 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 568.1ms TimeCoverageRelationStatistics Valid=144, Invalid=456, Unknown=0, NotChecked=0, Total=600 [2021-06-05 20:28:03,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2021-06-05 20:28:03,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 455. [2021-06-05 20:28:03,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 453 states have (on average 2.1258278145695364) internal successors, (963), 454 states have internal predecessors, (963), 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) [2021-06-05 20:28:03,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 963 transitions. [2021-06-05 20:28:03,746 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 963 transitions. Word has length 46 [2021-06-05 20:28:03,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:03,747 INFO L482 AbstractCegarLoop]: Abstraction has 455 states and 963 transitions. [2021-06-05 20:28:03,747 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 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) [2021-06-05 20:28:03,747 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 963 transitions. [2021-06-05 20:28:03,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 20:28:03,748 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:03,748 INFO L554 BasicCegarLoop]: 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] [2021-06-05 20:28:03,748 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 20:28:03,748 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:03,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:03,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1573073976, now seen corresponding path program 3 times [2021-06-05 20:28:03,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:03,749 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844346156] [2021-06-05 20:28:03,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:04,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:28:04,015 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:04,015 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844346156] [2021-06-05 20:28:04,015 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844346156] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:04,015 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:04,015 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-06-05 20:28:04,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395283562] [2021-06-05 20:28:04,015 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-05 20:28:04,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:04,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-05 20:28:04,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-06-05 20:28:04,016 INFO L87 Difference]: Start difference. First operand 455 states and 963 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 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) [2021-06-05 20:28:04,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:04,511 INFO L93 Difference]: Finished difference Result 486 states and 1004 transitions. [2021-06-05 20:28:04,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-05 20:28:04,512 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 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) Word has length 46 [2021-06-05 20:28:04,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:04,513 INFO L225 Difference]: With dead ends: 486 [2021-06-05 20:28:04,514 INFO L226 Difference]: Without dead ends: 486 [2021-06-05 20:28:04,514 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 392.0ms TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2021-06-05 20:28:04,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2021-06-05 20:28:04,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 423. [2021-06-05 20:28:04,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 421 states have (on average 2.1543942992874108) internal successors, (907), 422 states have internal predecessors, (907), 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) [2021-06-05 20:28:04,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 907 transitions. [2021-06-05 20:28:04,526 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 907 transitions. Word has length 46 [2021-06-05 20:28:04,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:04,527 INFO L482 AbstractCegarLoop]: Abstraction has 423 states and 907 transitions. [2021-06-05 20:28:04,527 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 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) [2021-06-05 20:28:04,527 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 907 transitions. [2021-06-05 20:28:04,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 20:28:04,530 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:04,532 INFO L554 BasicCegarLoop]: 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] [2021-06-05 20:28:04,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 20:28:04,532 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:04,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:04,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1884213040, now seen corresponding path program 4 times [2021-06-05 20:28:04,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:04,533 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727238209] [2021-06-05 20:28:04,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:04,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:28:04,887 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:04,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727238209] [2021-06-05 20:28:04,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727238209] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:04,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:04,887 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-06-05 20:28:04,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065317002] [2021-06-05 20:28:04,888 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-05 20:28:04,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:04,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-05 20:28:04,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-06-05 20:28:04,888 INFO L87 Difference]: Start difference. First operand 423 states and 907 transitions. Second operand has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 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) [2021-06-05 20:28:05,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:05,987 INFO L93 Difference]: Finished difference Result 442 states and 923 transitions. [2021-06-05 20:28:05,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 20:28:05,988 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 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) Word has length 46 [2021-06-05 20:28:05,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:05,989 INFO L225 Difference]: With dead ends: 442 [2021-06-05 20:28:05,989 INFO L226 Difference]: Without dead ends: 442 [2021-06-05 20:28:05,990 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 851.4ms TimeCoverageRelationStatistics Valid=331, Invalid=1391, Unknown=0, NotChecked=0, Total=1722 [2021-06-05 20:28:05,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-06-05 20:28:05,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 363. [2021-06-05 20:28:05,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 362 states have (on average 2.2099447513812156) internal successors, (800), 362 states have internal predecessors, (800), 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) [2021-06-05 20:28:05,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 800 transitions. [2021-06-05 20:28:05,997 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 800 transitions. Word has length 46 [2021-06-05 20:28:05,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:05,997 INFO L482 AbstractCegarLoop]: Abstraction has 363 states and 800 transitions. [2021-06-05 20:28:05,997 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 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) [2021-06-05 20:28:05,997 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 800 transitions. [2021-06-05 20:28:05,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 20:28:05,998 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:05,998 INFO L554 BasicCegarLoop]: 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] [2021-06-05 20:28:05,998 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 20:28:05,999 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:05,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:05,999 INFO L82 PathProgramCache]: Analyzing trace with hash -966462837, now seen corresponding path program 1 times [2021-06-05 20:28:05,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:05,999 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012716923] [2021-06-05 20:28:05,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:06,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:28:06,410 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:06,410 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012716923] [2021-06-05 20:28:06,410 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012716923] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:06,410 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:06,410 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:28:06,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037340373] [2021-06-05 20:28:06,411 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:28:06,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:06,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:28:06,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:28:06,411 INFO L87 Difference]: Start difference. First operand 363 states and 800 transitions. Second operand has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:07,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:07,931 INFO L93 Difference]: Finished difference Result 507 states and 1077 transitions. [2021-06-05 20:28:07,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:28:07,932 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) Word has length 61 [2021-06-05 20:28:07,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:07,933 INFO L225 Difference]: With dead ends: 507 [2021-06-05 20:28:07,933 INFO L226 Difference]: Without dead ends: 361 [2021-06-05 20:28:07,934 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 1321.1ms TimeCoverageRelationStatistics Valid=549, Invalid=2873, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:28:07,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2021-06-05 20:28:07,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2021-06-05 20:28:07,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 360 states have (on average 2.2111111111111112) internal successors, (796), 360 states have internal predecessors, (796), 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) [2021-06-05 20:28:07,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 796 transitions. [2021-06-05 20:28:07,940 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 796 transitions. Word has length 61 [2021-06-05 20:28:07,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:07,940 INFO L482 AbstractCegarLoop]: Abstraction has 361 states and 796 transitions. [2021-06-05 20:28:07,940 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:07,940 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 796 transitions. [2021-06-05 20:28:07,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 20:28:07,941 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:07,941 INFO L554 BasicCegarLoop]: 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] [2021-06-05 20:28:07,941 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 20:28:07,941 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:07,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:07,942 INFO L82 PathProgramCache]: Analyzing trace with hash -864990683, now seen corresponding path program 2 times [2021-06-05 20:28:07,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:07,942 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20857404] [2021-06-05 20:28:07,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:07,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:08,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:28:08,298 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:08,298 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20857404] [2021-06-05 20:28:08,298 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20857404] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:08,298 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:08,298 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:28:08,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243584630] [2021-06-05 20:28:08,298 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:28:08,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:08,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:28:08,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:28:08,299 INFO L87 Difference]: Start difference. First operand 361 states and 796 transitions. Second operand has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:09,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:09,734 INFO L93 Difference]: Finished difference Result 501 states and 1067 transitions. [2021-06-05 20:28:09,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:28:09,734 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) Word has length 61 [2021-06-05 20:28:09,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:09,735 INFO L225 Difference]: With dead ends: 501 [2021-06-05 20:28:09,735 INFO L226 Difference]: Without dead ends: 357 [2021-06-05 20:28:09,736 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 1188.7ms TimeCoverageRelationStatistics Valid=549, Invalid=2873, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:28:09,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2021-06-05 20:28:09,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2021-06-05 20:28:09,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 356 states have (on average 2.2134831460674156) internal successors, (788), 356 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:28:09,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 788 transitions. [2021-06-05 20:28:09,743 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 788 transitions. Word has length 61 [2021-06-05 20:28:09,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:09,744 INFO L482 AbstractCegarLoop]: Abstraction has 357 states and 788 transitions. [2021-06-05 20:28:09,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:09,744 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 788 transitions. [2021-06-05 20:28:09,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 20:28:09,744 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:09,744 INFO L554 BasicCegarLoop]: 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] [2021-06-05 20:28:09,744 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 20:28:09,745 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:09,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:09,745 INFO L82 PathProgramCache]: Analyzing trace with hash -365099227, now seen corresponding path program 3 times [2021-06-05 20:28:09,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:09,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588196549] [2021-06-05 20:28:09,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:09,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:10,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:28:10,102 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:10,102 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588196549] [2021-06-05 20:28:10,102 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588196549] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:10,102 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:10,102 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:28:10,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910830351] [2021-06-05 20:28:10,103 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:28:10,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:10,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:28:10,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:28:10,103 INFO L87 Difference]: Start difference. First operand 357 states and 788 transitions. Second operand has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:11,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:11,849 INFO L93 Difference]: Finished difference Result 611 states and 1298 transitions. [2021-06-05 20:28:11,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:28:11,849 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) Word has length 61 [2021-06-05 20:28:11,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:11,851 INFO L225 Difference]: With dead ends: 611 [2021-06-05 20:28:11,851 INFO L226 Difference]: Without dead ends: 473 [2021-06-05 20:28:11,852 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 1551.2ms TimeCoverageRelationStatistics Valid=548, Invalid=2874, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:28:11,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2021-06-05 20:28:11,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 357. [2021-06-05 20:28:11,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 356 states have (on average 2.202247191011236) internal successors, (784), 356 states have internal predecessors, (784), 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) [2021-06-05 20:28:11,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 784 transitions. [2021-06-05 20:28:11,857 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 784 transitions. Word has length 61 [2021-06-05 20:28:11,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:11,858 INFO L482 AbstractCegarLoop]: Abstraction has 357 states and 784 transitions. [2021-06-05 20:28:11,858 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:11,858 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 784 transitions. [2021-06-05 20:28:11,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 20:28:11,858 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:11,858 INFO L554 BasicCegarLoop]: 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] [2021-06-05 20:28:11,859 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 20:28:11,859 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:11,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:11,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1575987557, now seen corresponding path program 4 times [2021-06-05 20:28:11,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:11,859 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328110140] [2021-06-05 20:28:11,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:11,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:12,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:28:12,198 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:12,198 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328110140] [2021-06-05 20:28:12,198 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328110140] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:12,198 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:12,198 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:28:12,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561244502] [2021-06-05 20:28:12,199 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:28:12,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:12,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:28:12,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=699, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:28:12,199 INFO L87 Difference]: Start difference. First operand 357 states and 784 transitions. Second operand has 28 states, 27 states have (on average 2.259259259259259) internal successors, (61), 28 states have internal predecessors, (61), 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) [2021-06-05 20:28:13,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:13,731 INFO L93 Difference]: Finished difference Result 471 states and 1004 transitions. [2021-06-05 20:28:13,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:28:13,732 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 2.259259259259259) internal successors, (61), 28 states have internal predecessors, (61), 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) Word has length 61 [2021-06-05 20:28:13,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:13,734 INFO L225 Difference]: With dead ends: 471 [2021-06-05 20:28:13,734 INFO L226 Difference]: Without dead ends: 373 [2021-06-05 20:28:13,735 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 1246.6ms TimeCoverageRelationStatistics Valid=569, Invalid=3091, Unknown=0, NotChecked=0, Total=3660 [2021-06-05 20:28:13,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2021-06-05 20:28:13,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 357. [2021-06-05 20:28:13,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 356 states have (on average 2.1797752808988764) internal successors, (776), 356 states have internal predecessors, (776), 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) [2021-06-05 20:28:13,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 776 transitions. [2021-06-05 20:28:13,741 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 776 transitions. Word has length 61 [2021-06-05 20:28:13,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:13,741 INFO L482 AbstractCegarLoop]: Abstraction has 357 states and 776 transitions. [2021-06-05 20:28:13,741 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 27 states have (on average 2.259259259259259) internal successors, (61), 28 states have internal predecessors, (61), 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) [2021-06-05 20:28:13,741 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 776 transitions. [2021-06-05 20:28:13,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 20:28:13,742 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:13,742 INFO L554 BasicCegarLoop]: 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] [2021-06-05 20:28:13,742 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 20:28:13,742 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:13,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:13,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1037537445, now seen corresponding path program 5 times [2021-06-05 20:28:13,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:13,743 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760043779] [2021-06-05 20:28:13,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:14,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:28:14,101 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:14,101 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760043779] [2021-06-05 20:28:14,101 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760043779] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:14,101 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:14,101 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:28:14,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821627458] [2021-06-05 20:28:14,102 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:28:14,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:14,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:28:14,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=648, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:28:14,103 INFO L87 Difference]: Start difference. First operand 357 states and 776 transitions. Second operand has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:15,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:15,897 INFO L93 Difference]: Finished difference Result 447 states and 942 transitions. [2021-06-05 20:28:15,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:28:15,898 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) Word has length 61 [2021-06-05 20:28:15,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:15,899 INFO L225 Difference]: With dead ends: 447 [2021-06-05 20:28:15,899 INFO L226 Difference]: Without dead ends: 365 [2021-06-05 20:28:15,900 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 1579.8ms TimeCoverageRelationStatistics Valid=520, Invalid=2902, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:28:15,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2021-06-05 20:28:15,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 357. [2021-06-05 20:28:15,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 356 states have (on average 2.168539325842697) internal successors, (772), 356 states have internal predecessors, (772), 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) [2021-06-05 20:28:15,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 772 transitions. [2021-06-05 20:28:15,905 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 772 transitions. Word has length 61 [2021-06-05 20:28:15,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:15,905 INFO L482 AbstractCegarLoop]: Abstraction has 357 states and 772 transitions. [2021-06-05 20:28:15,905 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:15,905 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 772 transitions. [2021-06-05 20:28:15,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 20:28:15,906 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:15,906 INFO L554 BasicCegarLoop]: 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] [2021-06-05 20:28:15,906 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 20:28:15,906 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:15,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:15,906 INFO L82 PathProgramCache]: Analyzing trace with hash 80065675, now seen corresponding path program 6 times [2021-06-05 20:28:15,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:15,906 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21037161] [2021-06-05 20:28:15,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:16,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:28:16,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:16,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21037161] [2021-06-05 20:28:16,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21037161] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:16,236 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:16,236 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:28:16,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389231836] [2021-06-05 20:28:16,236 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:28:16,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:16,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:28:16,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=647, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:28:16,237 INFO L87 Difference]: Start difference. First operand 357 states and 772 transitions. Second operand has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:18,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:18,058 INFO L93 Difference]: Finished difference Result 439 states and 920 transitions. [2021-06-05 20:28:18,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 20:28:18,059 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) Word has length 61 [2021-06-05 20:28:18,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:18,060 INFO L225 Difference]: With dead ends: 439 [2021-06-05 20:28:18,060 INFO L226 Difference]: Without dead ends: 365 [2021-06-05 20:28:18,061 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 1614.0ms TimeCoverageRelationStatistics Valid=565, Invalid=3095, Unknown=0, NotChecked=0, Total=3660 [2021-06-05 20:28:18,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2021-06-05 20:28:18,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 357. [2021-06-05 20:28:18,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 356 states have (on average 2.157303370786517) internal successors, (768), 356 states have internal predecessors, (768), 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) [2021-06-05 20:28:18,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 768 transitions. [2021-06-05 20:28:18,066 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 768 transitions. Word has length 61 [2021-06-05 20:28:18,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:18,066 INFO L482 AbstractCegarLoop]: Abstraction has 357 states and 768 transitions. [2021-06-05 20:28:18,066 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:18,066 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 768 transitions. [2021-06-05 20:28:18,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 20:28:18,067 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:18,067 INFO L554 BasicCegarLoop]: 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] [2021-06-05 20:28:18,067 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 20:28:18,067 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:18,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:18,067 INFO L82 PathProgramCache]: Analyzing trace with hash -80785499, now seen corresponding path program 7 times [2021-06-05 20:28:18,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:18,068 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995517400] [2021-06-05 20:28:18,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:18,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:18,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:28:18,386 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:18,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995517400] [2021-06-05 20:28:18,386 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995517400] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:18,386 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:18,386 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:28:18,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548933416] [2021-06-05 20:28:18,386 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:28:18,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:18,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:28:18,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:28:18,387 INFO L87 Difference]: Start difference. First operand 357 states and 768 transitions. Second operand has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:19,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:19,722 INFO L93 Difference]: Finished difference Result 459 states and 942 transitions. [2021-06-05 20:28:19,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 20:28:19,723 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) Word has length 61 [2021-06-05 20:28:19,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:19,724 INFO L225 Difference]: With dead ends: 459 [2021-06-05 20:28:19,724 INFO L226 Difference]: Without dead ends: 393 [2021-06-05 20:28:19,725 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 1124.5ms TimeCoverageRelationStatistics Valid=556, Invalid=2984, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 20:28:19,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2021-06-05 20:28:19,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 357. [2021-06-05 20:28:19,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 356 states have (on average 2.134831460674157) internal successors, (760), 356 states have internal predecessors, (760), 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) [2021-06-05 20:28:19,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 760 transitions. [2021-06-05 20:28:19,737 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 760 transitions. Word has length 61 [2021-06-05 20:28:19,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:19,737 INFO L482 AbstractCegarLoop]: Abstraction has 357 states and 760 transitions. [2021-06-05 20:28:19,737 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:19,738 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 760 transitions. [2021-06-05 20:28:19,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 20:28:19,738 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:19,738 INFO L554 BasicCegarLoop]: 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] [2021-06-05 20:28:19,738 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 20:28:19,738 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:19,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:19,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1583628635, now seen corresponding path program 8 times [2021-06-05 20:28:19,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:19,739 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313567449] [2021-06-05 20:28:19,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:20,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:28:20,049 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:20,049 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313567449] [2021-06-05 20:28:20,049 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313567449] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:20,049 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:20,049 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:28:20,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655225680] [2021-06-05 20:28:20,050 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:28:20,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:20,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:28:20,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:28:20,050 INFO L87 Difference]: Start difference. First operand 357 states and 760 transitions. Second operand has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:21,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:21,380 INFO L93 Difference]: Finished difference Result 427 states and 866 transitions. [2021-06-05 20:28:21,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:28:21,380 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) Word has length 61 [2021-06-05 20:28:21,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:21,381 INFO L225 Difference]: With dead ends: 427 [2021-06-05 20:28:21,381 INFO L226 Difference]: Without dead ends: 377 [2021-06-05 20:28:21,382 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 1126.9ms TimeCoverageRelationStatistics Valid=532, Invalid=2890, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:28:21,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-06-05 20:28:21,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 357. [2021-06-05 20:28:21,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 356 states have (on average 2.1123595505617976) internal successors, (752), 356 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:28:21,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 752 transitions. [2021-06-05 20:28:21,387 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 752 transitions. Word has length 61 [2021-06-05 20:28:21,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:21,387 INFO L482 AbstractCegarLoop]: Abstraction has 357 states and 752 transitions. [2021-06-05 20:28:21,387 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:21,387 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 752 transitions. [2021-06-05 20:28:21,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 20:28:21,388 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:21,388 INFO L554 BasicCegarLoop]: 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] [2021-06-05 20:28:21,388 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 20:28:21,388 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:21,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:21,388 INFO L82 PathProgramCache]: Analyzing trace with hash -203984667, now seen corresponding path program 9 times [2021-06-05 20:28:21,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:21,388 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908134161] [2021-06-05 20:28:21,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:21,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:28:21,709 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:21,709 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908134161] [2021-06-05 20:28:21,709 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908134161] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:21,709 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:21,709 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:28:21,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281937451] [2021-06-05 20:28:21,709 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:28:21,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:21,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:28:21,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:28:21,710 INFO L87 Difference]: Start difference. First operand 357 states and 752 transitions. Second operand has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:22,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:22,970 INFO L93 Difference]: Finished difference Result 395 states and 802 transitions. [2021-06-05 20:28:22,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:28:22,971 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) Word has length 61 [2021-06-05 20:28:22,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:22,972 INFO L225 Difference]: With dead ends: 395 [2021-06-05 20:28:22,972 INFO L226 Difference]: Without dead ends: 361 [2021-06-05 20:28:22,972 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 1090.7ms TimeCoverageRelationStatistics Valid=523, Invalid=2899, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:28:22,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2021-06-05 20:28:22,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 357. [2021-06-05 20:28:22,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 356 states have (on average 2.109550561797753) internal successors, (751), 356 states have internal predecessors, (751), 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) [2021-06-05 20:28:22,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 751 transitions. [2021-06-05 20:28:22,977 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 751 transitions. Word has length 61 [2021-06-05 20:28:22,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:22,977 INFO L482 AbstractCegarLoop]: Abstraction has 357 states and 751 transitions. [2021-06-05 20:28:22,977 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:22,977 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 751 transitions. [2021-06-05 20:28:22,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 20:28:22,978 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:22,978 INFO L554 BasicCegarLoop]: 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] [2021-06-05 20:28:22,978 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 20:28:22,978 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:22,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:22,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1321800075, now seen corresponding path program 10 times [2021-06-05 20:28:22,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:22,978 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255192937] [2021-06-05 20:28:22,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:23,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:28:23,288 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:23,288 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255192937] [2021-06-05 20:28:23,289 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255192937] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:23,289 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:23,289 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:28:23,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632725044] [2021-06-05 20:28:23,289 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:28:23,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:23,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:28:23,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:28:23,290 INFO L87 Difference]: Start difference. First operand 357 states and 751 transitions. Second operand has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:25,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:25,068 INFO L93 Difference]: Finished difference Result 401 states and 810 transitions. [2021-06-05 20:28:25,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 20:28:25,068 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) Word has length 61 [2021-06-05 20:28:25,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:25,069 INFO L225 Difference]: With dead ends: 401 [2021-06-05 20:28:25,069 INFO L226 Difference]: Without dead ends: 369 [2021-06-05 20:28:25,070 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 1586.5ms TimeCoverageRelationStatistics Valid=554, Invalid=2986, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 20:28:25,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2021-06-05 20:28:25,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 357. [2021-06-05 20:28:25,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 356 states have (on average 2.101123595505618) internal successors, (748), 356 states have internal predecessors, (748), 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) [2021-06-05 20:28:25,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 748 transitions. [2021-06-05 20:28:25,075 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 748 transitions. Word has length 61 [2021-06-05 20:28:25,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:25,075 INFO L482 AbstractCegarLoop]: Abstraction has 357 states and 748 transitions. [2021-06-05 20:28:25,075 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:25,075 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 748 transitions. [2021-06-05 20:28:25,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 20:28:25,076 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:25,076 INFO L554 BasicCegarLoop]: 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] [2021-06-05 20:28:25,076 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 20:28:25,076 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:25,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:25,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1898712805, now seen corresponding path program 11 times [2021-06-05 20:28:25,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:25,076 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912792279] [2021-06-05 20:28:25,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:25,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:28:25,402 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:25,402 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912792279] [2021-06-05 20:28:25,402 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912792279] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:25,402 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:25,402 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:28:25,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335391719] [2021-06-05 20:28:25,403 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:28:25,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:25,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:28:25,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:28:25,403 INFO L87 Difference]: Start difference. First operand 357 states and 748 transitions. Second operand has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:27,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:27,082 INFO L93 Difference]: Finished difference Result 385 states and 783 transitions. [2021-06-05 20:28:27,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 20:28:27,083 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) Word has length 61 [2021-06-05 20:28:27,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:27,084 INFO L225 Difference]: With dead ends: 385 [2021-06-05 20:28:27,084 INFO L226 Difference]: Without dead ends: 359 [2021-06-05 20:28:27,084 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 1507.6ms TimeCoverageRelationStatistics Valid=518, Invalid=2788, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 20:28:27,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2021-06-05 20:28:27,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 357. [2021-06-05 20:28:27,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 356 states have (on average 2.098314606741573) internal successors, (747), 356 states have internal predecessors, (747), 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) [2021-06-05 20:28:27,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 747 transitions. [2021-06-05 20:28:27,089 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 747 transitions. Word has length 61 [2021-06-05 20:28:27,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:27,089 INFO L482 AbstractCegarLoop]: Abstraction has 357 states and 747 transitions. [2021-06-05 20:28:27,089 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:27,089 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 747 transitions. [2021-06-05 20:28:27,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 20:28:27,090 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:27,090 INFO L554 BasicCegarLoop]: 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] [2021-06-05 20:28:27,090 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 20:28:27,090 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:27,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:27,090 INFO L82 PathProgramCache]: Analyzing trace with hash -471612533, now seen corresponding path program 12 times [2021-06-05 20:28:27,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:27,090 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081683088] [2021-06-05 20:28:27,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:27,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:28:27,400 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:27,400 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081683088] [2021-06-05 20:28:27,400 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081683088] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:27,400 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:27,400 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:28:27,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858466228] [2021-06-05 20:28:27,400 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:28:27,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:27,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:28:27,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:28:27,401 INFO L87 Difference]: Start difference. First operand 357 states and 747 transitions. Second operand has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:29,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:29,142 INFO L93 Difference]: Finished difference Result 381 states and 776 transitions. [2021-06-05 20:28:29,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:28:29,143 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) Word has length 61 [2021-06-05 20:28:29,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:29,144 INFO L225 Difference]: With dead ends: 381 [2021-06-05 20:28:29,144 INFO L226 Difference]: Without dead ends: 357 [2021-06-05 20:28:29,145 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 1552.2ms TimeCoverageRelationStatistics Valid=546, Invalid=2876, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:28:29,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2021-06-05 20:28:29,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2021-06-05 20:28:29,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 356 states have (on average 2.092696629213483) internal successors, (745), 356 states have internal predecessors, (745), 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) [2021-06-05 20:28:29,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 745 transitions. [2021-06-05 20:28:29,149 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 745 transitions. Word has length 61 [2021-06-05 20:28:29,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:29,149 INFO L482 AbstractCegarLoop]: Abstraction has 357 states and 745 transitions. [2021-06-05 20:28:29,149 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:29,149 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 745 transitions. [2021-06-05 20:28:29,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 20:28:29,150 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:29,150 INFO L554 BasicCegarLoop]: 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] [2021-06-05 20:28:29,150 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 20:28:29,150 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:29,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:29,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1001105035, now seen corresponding path program 13 times [2021-06-05 20:28:29,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:29,150 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018937541] [2021-06-05 20:28:29,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:29,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:28:29,524 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:29,524 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018937541] [2021-06-05 20:28:29,524 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018937541] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:29,524 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:29,524 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-06-05 20:28:29,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014326961] [2021-06-05 20:28:29,524 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-05 20:28:29,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:29,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-05 20:28:29,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2021-06-05 20:28:29,525 INFO L87 Difference]: Start difference. First operand 357 states and 745 transitions. Second operand has 30 states, 29 states have (on average 2.103448275862069) internal successors, (61), 30 states have internal predecessors, (61), 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) [2021-06-05 20:28:31,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:31,738 INFO L93 Difference]: Finished difference Result 377 states and 768 transitions. [2021-06-05 20:28:31,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-05 20:28:31,738 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 2.103448275862069) internal successors, (61), 30 states have internal predecessors, (61), 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) Word has length 61 [2021-06-05 20:28:31,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:31,739 INFO L225 Difference]: With dead ends: 377 [2021-06-05 20:28:31,739 INFO L226 Difference]: Without dead ends: 225 [2021-06-05 20:28:31,740 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 701 ImplicationChecksByTransitivity, 1986.2ms TimeCoverageRelationStatistics Valid=633, Invalid=3789, Unknown=0, NotChecked=0, Total=4422 [2021-06-05 20:28:31,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-06-05 20:28:31,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2021-06-05 20:28:31,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 224 states have (on average 1.9866071428571428) internal successors, (445), 224 states have internal predecessors, (445), 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) [2021-06-05 20:28:31,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 445 transitions. [2021-06-05 20:28:31,743 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 445 transitions. Word has length 61 [2021-06-05 20:28:31,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:31,743 INFO L482 AbstractCegarLoop]: Abstraction has 225 states and 445 transitions. [2021-06-05 20:28:31,743 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 29 states have (on average 2.103448275862069) internal successors, (61), 30 states have internal predecessors, (61), 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) [2021-06-05 20:28:31,743 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 445 transitions. [2021-06-05 20:28:31,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 20:28:31,744 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:31,744 INFO L554 BasicCegarLoop]: 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] [2021-06-05 20:28:31,744 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 20:28:31,744 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:31,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:31,744 INFO L82 PathProgramCache]: Analyzing trace with hash 976306789, now seen corresponding path program 14 times [2021-06-05 20:28:31,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:31,744 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126920373] [2021-06-05 20:28:31,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:31,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:32,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:28:32,085 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:32,085 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126920373] [2021-06-05 20:28:32,085 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126920373] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:32,085 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:32,085 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:28:32,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140871491] [2021-06-05 20:28:32,085 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:28:32,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:32,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:28:32,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=650, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:28:32,086 INFO L87 Difference]: Start difference. First operand 225 states and 445 transitions. Second operand has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:33,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:33,822 INFO L93 Difference]: Finished difference Result 331 states and 647 transitions. [2021-06-05 20:28:33,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:28:33,823 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) Word has length 61 [2021-06-05 20:28:33,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:33,823 INFO L225 Difference]: With dead ends: 331 [2021-06-05 20:28:33,823 INFO L226 Difference]: Without dead ends: 213 [2021-06-05 20:28:33,824 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 1540.3ms TimeCoverageRelationStatistics Valid=516, Invalid=2906, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:28:33,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-06-05 20:28:33,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2021-06-05 20:28:33,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 212 states have (on average 1.9433962264150944) internal successors, (412), 212 states have internal predecessors, (412), 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) [2021-06-05 20:28:33,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 412 transitions. [2021-06-05 20:28:33,827 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 412 transitions. Word has length 61 [2021-06-05 20:28:33,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:33,827 INFO L482 AbstractCegarLoop]: Abstraction has 213 states and 412 transitions. [2021-06-05 20:28:33,827 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:33,827 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 412 transitions. [2021-06-05 20:28:33,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 20:28:33,827 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:33,827 INFO L554 BasicCegarLoop]: 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] [2021-06-05 20:28:33,827 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-05 20:28:33,827 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:33,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:33,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1338136393, now seen corresponding path program 15 times [2021-06-05 20:28:33,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:33,828 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047020643] [2021-06-05 20:28:33,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:34,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:28:34,117 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:34,117 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047020643] [2021-06-05 20:28:34,117 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047020643] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:34,117 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:34,117 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:28:34,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537172738] [2021-06-05 20:28:34,117 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:28:34,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:34,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:28:34,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:28:34,118 INFO L87 Difference]: Start difference. First operand 213 states and 412 transitions. Second operand has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:35,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:35,781 INFO L93 Difference]: Finished difference Result 327 states and 632 transitions. [2021-06-05 20:28:35,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:28:35,781 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) Word has length 61 [2021-06-05 20:28:35,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:35,782 INFO L225 Difference]: With dead ends: 327 [2021-06-05 20:28:35,782 INFO L226 Difference]: Without dead ends: 201 [2021-06-05 20:28:35,783 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 1506.8ms TimeCoverageRelationStatistics Valid=545, Invalid=2877, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:28:35,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-06-05 20:28:35,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2021-06-05 20:28:35,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 200 states have (on average 1.895) internal successors, (379), 200 states have internal predecessors, (379), 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) [2021-06-05 20:28:35,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 379 transitions. [2021-06-05 20:28:35,785 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 379 transitions. Word has length 61 [2021-06-05 20:28:35,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:35,785 INFO L482 AbstractCegarLoop]: Abstraction has 201 states and 379 transitions. [2021-06-05 20:28:35,785 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:35,785 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 379 transitions. [2021-06-05 20:28:35,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 20:28:35,786 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:35,786 INFO L554 BasicCegarLoop]: 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] [2021-06-05 20:28:35,786 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-05 20:28:35,786 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:35,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:35,786 INFO L82 PathProgramCache]: Analyzing trace with hash -422724669, now seen corresponding path program 16 times [2021-06-05 20:28:35,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:35,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877037440] [2021-06-05 20:28:35,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:36,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:28:36,083 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:36,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877037440] [2021-06-05 20:28:36,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877037440] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:36,084 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:36,084 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:28:36,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515460130] [2021-06-05 20:28:36,084 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:28:36,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:36,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:28:36,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:28:36,085 INFO L87 Difference]: Start difference. First operand 201 states and 379 transitions. Second operand has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:37,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:37,695 INFO L93 Difference]: Finished difference Result 323 states and 617 transitions. [2021-06-05 20:28:37,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:28:37,695 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) Word has length 61 [2021-06-05 20:28:37,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:37,696 INFO L225 Difference]: With dead ends: 323 [2021-06-05 20:28:37,696 INFO L226 Difference]: Without dead ends: 189 [2021-06-05 20:28:37,696 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 1475.0ms TimeCoverageRelationStatistics Valid=546, Invalid=2876, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:28:37,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-06-05 20:28:37,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2021-06-05 20:28:37,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 188 states have (on average 1.8404255319148937) internal successors, (346), 188 states have internal predecessors, (346), 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) [2021-06-05 20:28:37,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 346 transitions. [2021-06-05 20:28:37,699 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 346 transitions. Word has length 61 [2021-06-05 20:28:37,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:37,699 INFO L482 AbstractCegarLoop]: Abstraction has 189 states and 346 transitions. [2021-06-05 20:28:37,699 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:37,699 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 346 transitions. [2021-06-05 20:28:37,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 20:28:37,699 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:37,699 INFO L554 BasicCegarLoop]: 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] [2021-06-05 20:28:37,699 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-05 20:28:37,699 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:37,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:37,700 INFO L82 PathProgramCache]: Analyzing trace with hash -2047826581, now seen corresponding path program 17 times [2021-06-05 20:28:37,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:37,700 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350534069] [2021-06-05 20:28:37,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:37,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:28:37,992 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:37,992 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350534069] [2021-06-05 20:28:37,992 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350534069] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:37,992 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:37,992 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:28:37,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878660908] [2021-06-05 20:28:37,998 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:28:37,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:37,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:28:37,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:28:37,999 INFO L87 Difference]: Start difference. First operand 189 states and 346 transitions. Second operand has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:39,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:39,628 INFO L93 Difference]: Finished difference Result 319 states and 602 transitions. [2021-06-05 20:28:39,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:28:39,628 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) Word has length 61 [2021-06-05 20:28:39,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:39,629 INFO L225 Difference]: With dead ends: 319 [2021-06-05 20:28:39,629 INFO L226 Difference]: Without dead ends: 165 [2021-06-05 20:28:39,629 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 1472.0ms TimeCoverageRelationStatistics Valid=547, Invalid=2875, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:28:39,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-06-05 20:28:39,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2021-06-05 20:28:39,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 164 states have (on average 1.8414634146341464) internal successors, (302), 164 states have internal predecessors, (302), 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) [2021-06-05 20:28:39,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 302 transitions. [2021-06-05 20:28:39,631 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 302 transitions. Word has length 61 [2021-06-05 20:28:39,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:39,631 INFO L482 AbstractCegarLoop]: Abstraction has 165 states and 302 transitions. [2021-06-05 20:28:39,632 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:39,632 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 302 transitions. [2021-06-05 20:28:39,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 20:28:39,632 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:39,632 INFO L554 BasicCegarLoop]: 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] [2021-06-05 20:28:39,632 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-05 20:28:39,632 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:39,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:39,632 INFO L82 PathProgramCache]: Analyzing trace with hash -2091397663, now seen corresponding path program 18 times [2021-06-05 20:28:39,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:39,633 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112133385] [2021-06-05 20:28:39,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:39,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:28:39,968 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:39,968 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112133385] [2021-06-05 20:28:39,968 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112133385] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:39,968 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:39,968 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:28:39,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274777146] [2021-06-05 20:28:39,969 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:28:39,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:39,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:28:39,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:28:39,970 INFO L87 Difference]: Start difference. First operand 165 states and 302 transitions. Second operand has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:41,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:41,218 INFO L93 Difference]: Finished difference Result 164 states and 301 transitions. [2021-06-05 20:28:41,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:28:41,218 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) Word has length 61 [2021-06-05 20:28:41,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:41,218 INFO L225 Difference]: With dead ends: 164 [2021-06-05 20:28:41,218 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 20:28:41,219 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 1129.8ms TimeCoverageRelationStatistics Valid=549, Invalid=2873, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:28:41,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 20:28:41,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 20:28:41,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-06-05 20:28:41,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 20:28:41,219 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2021-06-05 20:28:41,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:41,219 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 20:28:41,219 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 27 states have internal predecessors, (61), 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) [2021-06-05 20:28:41,219 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 20:28:41,220 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 20:28:41,220 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-05 20:28:41,220 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (4/5) [2021-06-05 20:28:41,220 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 20:28:41,220 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:28:41,220 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:28:41,221 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:28:41,221 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:28:41,221 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:28:41,221 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:28:41,221 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:28:41,221 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == barThread1of1ForFork0======== [2021-06-05 20:28:41,222 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 89 transitions, 206 flow [2021-06-05 20:28:41,226 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 477 states, 472 states have (on average 2.1440677966101696) internal successors, (1012), 476 states have internal predecessors, (1012), 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) [2021-06-05 20:28:41,227 INFO L276 IsEmpty]: Start isEmpty. Operand has 477 states, 472 states have (on average 2.1440677966101696) internal successors, (1012), 476 states have internal predecessors, (1012), 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) [2021-06-05 20:28:41,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-06-05 20:28:41,227 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:28:41,227 INFO L554 BasicCegarLoop]: 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] [2021-06-05 20:28:41,227 INFO L430 AbstractCegarLoop]: === Iteration 1 === [barErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:28:41,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:28:41,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1964643420, now seen corresponding path program 1 times [2021-06-05 20:28:41,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:28:41,228 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115059062] [2021-06-05 20:28:41,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:28:41,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:28:41,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:28:41,363 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:28:41,363 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115059062] [2021-06-05 20:28:41,363 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115059062] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:28:41,363 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:28:41,363 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-06-05 20:28:41,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111185938] [2021-06-05 20:28:41,363 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-05 20:28:41,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:28:41,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-05 20:28:41,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2021-06-05 20:28:41,365 INFO L87 Difference]: Start difference. First operand has 477 states, 472 states have (on average 2.1440677966101696) internal successors, (1012), 476 states have internal predecessors, (1012), 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) Second operand has 17 states, 16 states have (on average 1.625) internal successors, (26), 17 states have internal predecessors, (26), 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) [2021-06-05 20:28:41,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:28:41,831 INFO L93 Difference]: Finished difference Result 457 states and 961 transitions. [2021-06-05 20:28:41,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-05 20:28:41,832 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.625) internal successors, (26), 17 states have internal predecessors, (26), 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) Word has length 26 [2021-06-05 20:28:41,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:28:41,832 INFO L225 Difference]: With dead ends: 457 [2021-06-05 20:28:41,832 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 20:28:41,832 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 361.5ms TimeCoverageRelationStatistics Valid=221, Invalid=771, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:28:41,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 20:28:41,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 20:28:41,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-06-05 20:28:41,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 20:28:41,832 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2021-06-05 20:28:41,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:28:41,833 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 20:28:41,833 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 16 states have (on average 1.625) internal successors, (26), 17 states have internal predecessors, (26), 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) [2021-06-05 20:28:41,833 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 20:28:41,833 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 20:28:41,833 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-05 20:28:41,833 INFO L301 ceAbstractionStarter]: Result for error location barThread1of1ForFork0 was SAFE (5/5) [2021-06-05 20:28:41,834 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 20:28:41,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 08:28:41 BasicIcfg [2021-06-05 20:28:41,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 20:28:41,836 INFO L168 Benchmark]: Toolchain (without parser) took 40865.33 ms. Allocated memory was 333.4 MB in the beginning and 494.9 MB in the end (delta: 161.5 MB). Free memory was 295.5 MB in the beginning and 439.4 MB in the end (delta: -143.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.0 GB. [2021-06-05 20:28:41,836 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 333.4 MB. Free memory was 313.9 MB in the beginning and 313.8 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 20:28:41,836 INFO L168 Benchmark]: CACSL2BoogieTranslator took 184.79 ms. Allocated memory is still 333.4 MB. Free memory was 295.3 MB in the beginning and 315.3 MB in the end (delta: -20.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-06-05 20:28:41,836 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.57 ms. Allocated memory is still 333.4 MB. Free memory was 315.3 MB in the beginning and 314.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 20:28:41,836 INFO L168 Benchmark]: Boogie Preprocessor took 11.78 ms. Allocated memory is still 333.4 MB. Free memory was 314.3 MB in the beginning and 313.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 20:28:41,836 INFO L168 Benchmark]: RCFGBuilder took 374.28 ms. Allocated memory is still 333.4 MB. Free memory was 313.3 MB in the beginning and 290.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-05 20:28:41,836 INFO L168 Benchmark]: TraceAbstraction took 40272.08 ms. Allocated memory was 333.4 MB in the beginning and 494.9 MB in the end (delta: 161.5 MB). Free memory was 289.1 MB in the beginning and 439.4 MB in the end (delta: -150.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.0 GB. [2021-06-05 20:28:41,837 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 333.4 MB. Free memory was 313.9 MB in the beginning and 313.8 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 184.79 ms. Allocated memory is still 333.4 MB. Free memory was 295.3 MB in the beginning and 315.3 MB in the end (delta: -20.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 18.57 ms. Allocated memory is still 333.4 MB. Free memory was 315.3 MB in the beginning and 314.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.78 ms. Allocated memory is still 333.4 MB. Free memory was 314.3 MB in the beginning and 313.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 374.28 ms. Allocated memory is still 333.4 MB. Free memory was 313.3 MB in the beginning and 290.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 40272.08 ms. Allocated memory was 333.4 MB in the beginning and 494.9 MB in the end (delta: 161.5 MB). Free memory was 289.1 MB in the beginning and 439.4 MB in the end (delta: -150.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.0 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. VerificationResult: SAFE, OverallTime: 63.6ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 18.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 42.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=477occurred 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. VerificationResult: SAFE, OverallTime: 11.2ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 1.5ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=477occurred 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. VerificationResult: SAFE, OverallTime: 15.1ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 1.7ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=477occurred 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. VerificationResult: SAFE, OverallTime: 39407.6ms, OverallIterations: 22, TraceHistogramMax: 1, EmptinessCheckTime: 22.1ms, AutomataDifference: 31696.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1818 SDtfs, 7177 SDslu, 24164 SDs, 0 SdLazy, 21096 SolverSat, 947 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7592.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1190 GetRequests, 46 SyntacticMatches, 10 SemanticMatches, 1134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9190 ImplicationChecksByTransitivity, 27663.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=477occurred in iteration=0, InterpolantAutomatonStates: 744, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 150.1ms AutomataMinimizationTime, 22 MinimizatonAttempts, 459 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 36.1ms SsaConstructionTime, 253.8ms SatisfiabilityAnalysisTime, 7077.2ms InterpolantComputationTime, 1282 NumberOfCodeBlocks, 1282 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1260 ConstructedInterpolants, 0 QuantifiedInterpolants, 15063 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 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. VerificationResult: SAFE, OverallTime: 612.5ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.8ms, AutomataDifference: 468.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 76 SDtfs, 315 SDslu, 745 SDs, 0 SdLazy, 440 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 161.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 361.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=477occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6ms SsaConstructionTime, 1.9ms SatisfiabilityAnalysisTime, 131.1ms 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...