/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/forkFork.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-12 18:40:51,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-12 18:40:51,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-12 18:40:51,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-12 18:40:51,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-12 18:40:51,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-12 18:40:51,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-12 18:40:51,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-12 18:40:51,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-12 18:40:51,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-12 18:40:51,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-12 18:40:51,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-12 18:40:51,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-12 18:40:51,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-12 18:40:51,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-12 18:40:51,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-12 18:40:51,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-12 18:40:51,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-12 18:40:51,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-12 18:40:51,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-12 18:40:51,904 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 [2021-06-12 18:40:51,941 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-12 18:40:51,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-12 18:40:51,941 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-12 18:40:51,941 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-12 18:40:51,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-12 18:40:51,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-12 18:40:51,943 INFO L138 SettingsManager]: * Use SBE=true [2021-06-12 18:40:51,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-12 18:40:51,943 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-12 18:40:51,943 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-12 18:40:51,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-12 18:40:51,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-12 18:40:51,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-12 18:40:51,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-12 18:40:51,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-12 18:40:51,944 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-12 18:40:51,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-12 18:40:51,944 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-12 18:40:51,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-12 18:40:51,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-12 18:40:51,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-12 18:40:51,945 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-12 18:40:51,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-12 18:40:51,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 18:40:51,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-12 18:40:51,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-12 18:40:51,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-12 18:40:51,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-12 18:40:51,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-12 18:40:51,946 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-12 18:40:51,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-12 18:40:51,946 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-12 18:40:52,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-12 18:40:52,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-12 18:40:52,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-12 18:40:52,258 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-12 18:40:52,260 INFO L275 PluginConnector]: CDTParser initialized [2021-06-12 18:40:52,261 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkFork.c [2021-06-12 18:40:52,319 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e99d0031d/ba69a4a29752486c834be3b0fa21b5c7/FLAG0ca832dc1 [2021-06-12 18:40:52,697 INFO L306 CDTParser]: Found 1 translation units. [2021-06-12 18:40:52,697 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkFork.c [2021-06-12 18:40:52,699 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-12 18:40:52,699 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-12 18:40:52,732 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e99d0031d/ba69a4a29752486c834be3b0fa21b5c7/FLAG0ca832dc1 [2021-06-12 18:40:52,747 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e99d0031d/ba69a4a29752486c834be3b0fa21b5c7 [2021-06-12 18:40:52,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-12 18:40:52,753 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-12 18:40:52,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-12 18:40:52,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-12 18:40:52,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-12 18:40:52,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 06:40:52" (1/1) ... [2021-06-12 18:40:52,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@350c66a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:40:52, skipping insertion in model container [2021-06-12 18:40:52,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 06:40:52" (1/1) ... [2021-06-12 18:40:52,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-12 18:40:52,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-12 18:40:52,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 18:40:52,941 INFO L203 MainTranslator]: Completed pre-run [2021-06-12 18:40:52,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 18:40:52,976 INFO L208 MainTranslator]: Completed translation [2021-06-12 18:40:52,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:40:52 WrapperNode [2021-06-12 18:40:52,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-12 18:40:52,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-12 18:40:52,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-12 18:40:52,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-12 18:40:53,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:40:52" (1/1) ... [2021-06-12 18:40:53,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:40:52" (1/1) ... [2021-06-12 18:40:53,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-12 18:40:53,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-12 18:40:53,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-12 18:40:53,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-12 18:40:53,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:40:52" (1/1) ... [2021-06-12 18:40:53,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:40:52" (1/1) ... [2021-06-12 18:40:53,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:40:52" (1/1) ... [2021-06-12 18:40:53,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:40:52" (1/1) ... [2021-06-12 18:40:53,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:40:52" (1/1) ... [2021-06-12 18:40:53,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:40:52" (1/1) ... [2021-06-12 18:40:53,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:40:52" (1/1) ... [2021-06-12 18:40:53,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-12 18:40:53,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-12 18:40:53,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-12 18:40:53,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-12 18:40:53,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:40:52" (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 [2021-06-12 18:40:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-06-12 18:40:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-12 18:40:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2021-06-12 18:40:53,122 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2021-06-12 18:40:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-12 18:40:53,123 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-12 18:40:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-12 18:40:53,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-12 18:40:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-12 18:40:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-12 18:40:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-06-12 18:40:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-12 18:40:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-12 18:40:53,125 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-12 18:40:53,458 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-12 18:40:53,459 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-12 18:40:53,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 06:40:53 BoogieIcfgContainer [2021-06-12 18:40:53,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-12 18:40:53,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-12 18:40:53,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-12 18:40:53,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-12 18:40:53,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.06 06:40:52" (1/3) ... [2021-06-12 18:40:53,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735d453d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 06:40:53, skipping insertion in model container [2021-06-12 18:40:53,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 06:40:52" (2/3) ... [2021-06-12 18:40:53,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735d453d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 06:40:53, skipping insertion in model container [2021-06-12 18:40:53,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 06:40:53" (3/3) ... [2021-06-12 18:40:53,473 INFO L111 eAbstractionObserver]: Analyzing ICFG forkFork.c [2021-06-12 18:40:53,480 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-12 18:40:53,481 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-12 18:40:53,481 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-06-12 18:40:53,482 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-12 18:40:53,520 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,520 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,521 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,521 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,521 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,521 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,522 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,522 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,522 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,523 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,523 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,523 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,523 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,523 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,523 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,523 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,524 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,524 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,524 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,524 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,525 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,525 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,526 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,526 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,526 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,526 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,527 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,527 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,527 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,527 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,528 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,529 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,529 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,529 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,529 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,529 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,530 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,530 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,530 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,530 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,530 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,530 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,530 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,531 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,533 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,533 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,533 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,534 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,534 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,534 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,534 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,534 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,534 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,534 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,537 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,537 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,537 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,537 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,538 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,538 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,538 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,538 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,538 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,538 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,539 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,539 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,539 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,539 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,539 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,539 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,540 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,540 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,541 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,541 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,541 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,541 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,541 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,541 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,542 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,542 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,542 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,542 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,542 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,543 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,543 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,543 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,543 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,543 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,543 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,543 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,544 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,544 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,544 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,544 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,544 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,544 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,545 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,546 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,548 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,548 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,549 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,550 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,555 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,555 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,557 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,557 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,558 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,558 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,558 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,558 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,558 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,558 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,558 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,558 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,558 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,558 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,559 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,559 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,559 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,559 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,559 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,559 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,559 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,559 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,559 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,560 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,560 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,560 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,560 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,560 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,561 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,561 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,561 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,561 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,561 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,561 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,561 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,561 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,562 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,562 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,562 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,562 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,564 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,565 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,565 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,565 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,565 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,565 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,566 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,566 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,566 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,576 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,576 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,576 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,576 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,576 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,576 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,576 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,577 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,577 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,577 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,577 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,577 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,577 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,577 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,577 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,578 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,578 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,584 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,584 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,584 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,585 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,585 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,585 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,585 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,585 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,585 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 18:40:53,627 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-06-12 18:40:53,645 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-12 18:40:53,668 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 18:40:53,668 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 18:40:53,668 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 18:40:53,668 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 18:40:53,669 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 18:40:53,669 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 18:40:53,669 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 18:40:53,669 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == fooThread1of1ForFork1======== [2021-06-12 18:40:53,682 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 89 transitions, 206 flow [2021-06-12 18:40:53,722 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) [2021-06-12 18:40:53,725 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) [2021-06-12 18:40:53,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-12 18:40:53,748 INFO L301 ceAbstractionStarter]: Result for error location fooThread1of1ForFork1 was SAFE (1/5) [2021-06-12 18:40:53,749 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-12 18:40:53,756 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 18:40:53,756 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 18:40:53,756 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 18:40:53,757 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 18:40:53,757 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 18:40:53,757 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 18:40:53,757 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 18:40:53,757 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == bar======== [2021-06-12 18:40:53,759 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 89 transitions, 206 flow [2021-06-12 18:40:53,769 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) [2021-06-12 18:40:53,770 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) [2021-06-12 18:40:53,771 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-12 18:40:53,771 INFO L301 ceAbstractionStarter]: Result for error location bar was SAFE (2/5) [2021-06-12 18:40:53,772 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-12 18:40:53,782 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 18:40:53,782 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 18:40:53,782 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 18:40:53,782 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 18:40:53,783 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 18:40:53,783 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 18:40:53,783 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 18:40:53,783 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == foo======== [2021-06-12 18:40:53,787 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 89 transitions, 206 flow [2021-06-12 18:40:53,795 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) [2021-06-12 18:40:53,796 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) [2021-06-12 18:40:53,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-12 18:40:53,802 INFO L301 ceAbstractionStarter]: Result for error location foo was SAFE (3/5) [2021-06-12 18:40:53,802 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-12 18:40:53,804 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 18:40:53,804 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 18:40:53,804 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 18:40:53,805 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 18:40:53,808 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 18:40:53,808 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 18:40:53,808 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 18:40:53,808 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-12 18:40:53,812 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 89 transitions, 206 flow [2021-06-12 18:40:53,820 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) [2021-06-12 18:40:53,821 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) [2021-06-12 18:40:53,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-12 18:40:53,823 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:40:53,824 INFO L472 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] [2021-06-12 18:40:53,824 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:40:53,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:40:53,829 INFO L82 PathProgramCache]: Analyzing trace with hash 982709772, now seen corresponding path program 1 times [2021-06-12 18:40:53,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:40:53,835 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91629793] [2021-06-12 18:40:53,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:40:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:40:54,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:40:54,464 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:40:54,464 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91629793] [2021-06-12 18:40:54,465 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91629793] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:40:54,465 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:40:54,465 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-12 18:40:54,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130038392] [2021-06-12 18:40:54,469 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-12 18:40:54,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:40:54,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-12 18:40:54,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-12 18:40:54,483 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) [2021-06-12 18:40:54,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:40:54,795 INFO L93 Difference]: Finished difference Result 547 states and 1119 transitions. [2021-06-12 18:40:54,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-12 18:40:54,797 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 [2021-06-12 18:40:54,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:40:54,808 INFO L225 Difference]: With dead ends: 547 [2021-06-12 18:40:54,808 INFO L226 Difference]: Without dead ends: 473 [2021-06-12 18:40:54,809 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 302.9ms TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-06-12 18:40:54,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2021-06-12 18:40:54,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 458. [2021-06-12 18:40:54,869 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) [2021-06-12 18:40:54,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 966 transitions. [2021-06-12 18:40:54,871 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 966 transitions. Word has length 46 [2021-06-12 18:40:54,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:40:54,872 INFO L482 AbstractCegarLoop]: Abstraction has 458 states and 966 transitions. [2021-06-12 18:40:54,872 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) [2021-06-12 18:40:54,872 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 966 transitions. [2021-06-12 18:40:54,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-12 18:40:54,874 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:40:54,874 INFO L472 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] [2021-06-12 18:40:54,874 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-12 18:40:54,874 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:40:54,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:40:54,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1272071898, now seen corresponding path program 2 times [2021-06-12 18:40:54,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:40:54,875 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873398531] [2021-06-12 18:40:54,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:40:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:40:55,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:40:55,398 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:40:55,398 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873398531] [2021-06-12 18:40:55,398 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873398531] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:40:55,398 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:40:55,398 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-06-12 18:40:55,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932713741] [2021-06-12 18:40:55,400 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-12 18:40:55,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:40:55,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-12 18:40:55,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-06-12 18:40:55,402 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) [2021-06-12 18:40:56,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:40:56,118 INFO L93 Difference]: Finished difference Result 535 states and 1093 transitions. [2021-06-12 18:40:56,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-12 18:40:56,121 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 [2021-06-12 18:40:56,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:40:56,124 INFO L225 Difference]: With dead ends: 535 [2021-06-12 18:40:56,124 INFO L226 Difference]: Without dead ends: 535 [2021-06-12 18:40:56,125 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 665.2ms TimeCoverageRelationStatistics Valid=144, Invalid=456, Unknown=0, NotChecked=0, Total=600 [2021-06-12 18:40:56,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2021-06-12 18:40:56,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 455. [2021-06-12 18:40:56,142 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) [2021-06-12 18:40:56,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 963 transitions. [2021-06-12 18:40:56,144 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 963 transitions. Word has length 46 [2021-06-12 18:40:56,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:40:56,144 INFO L482 AbstractCegarLoop]: Abstraction has 455 states and 963 transitions. [2021-06-12 18:40:56,144 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) [2021-06-12 18:40:56,145 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 963 transitions. [2021-06-12 18:40:56,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-12 18:40:56,146 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:40:56,146 INFO L472 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] [2021-06-12 18:40:56,146 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-12 18:40:56,146 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:40:56,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:40:56,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1573073976, now seen corresponding path program 3 times [2021-06-12 18:40:56,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:40:56,147 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496608751] [2021-06-12 18:40:56,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:40:56,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:40:56,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:40:56,515 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:40:56,515 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496608751] [2021-06-12 18:40:56,515 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496608751] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:40:56,515 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:40:56,515 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-06-12 18:40:56,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674934135] [2021-06-12 18:40:56,516 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-12 18:40:56,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:40:56,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-12 18:40:56,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-06-12 18:40:56,516 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) [2021-06-12 18:40:57,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:40:57,089 INFO L93 Difference]: Finished difference Result 486 states and 1004 transitions. [2021-06-12 18:40:57,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-12 18:40:57,089 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 [2021-06-12 18:40:57,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:40:57,092 INFO L225 Difference]: With dead ends: 486 [2021-06-12 18:40:57,092 INFO L226 Difference]: Without dead ends: 486 [2021-06-12 18:40:57,092 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 475.9ms TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2021-06-12 18:40:57,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2021-06-12 18:40:57,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 423. [2021-06-12 18:40:57,102 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) [2021-06-12 18:40:57,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 907 transitions. [2021-06-12 18:40:57,104 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 907 transitions. Word has length 46 [2021-06-12 18:40:57,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:40:57,104 INFO L482 AbstractCegarLoop]: Abstraction has 423 states and 907 transitions. [2021-06-12 18:40:57,104 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) [2021-06-12 18:40:57,105 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 907 transitions. [2021-06-12 18:40:57,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-12 18:40:57,106 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:40:57,106 INFO L472 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] [2021-06-12 18:40:57,106 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-12 18:40:57,106 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:40:57,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:40:57,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1884213040, now seen corresponding path program 4 times [2021-06-12 18:40:57,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:40:57,107 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307971888] [2021-06-12 18:40:57,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:40:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:40:57,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:40:57,556 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:40:57,556 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307971888] [2021-06-12 18:40:57,556 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307971888] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:40:57,557 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:40:57,557 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-06-12 18:40:57,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058449759] [2021-06-12 18:40:57,557 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-12 18:40:57,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:40:57,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-12 18:40:57,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-06-12 18:40:57,558 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) [2021-06-12 18:40:58,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:40:58,855 INFO L93 Difference]: Finished difference Result 442 states and 923 transitions. [2021-06-12 18:40:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-12 18:40:58,855 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 [2021-06-12 18:40:58,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:40:58,857 INFO L225 Difference]: With dead ends: 442 [2021-06-12 18:40:58,857 INFO L226 Difference]: Without dead ends: 442 [2021-06-12 18:40:58,858 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 1034.7ms TimeCoverageRelationStatistics Valid=331, Invalid=1391, Unknown=0, NotChecked=0, Total=1722 [2021-06-12 18:40:58,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-06-12 18:40:58,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 363. [2021-06-12 18:40:58,866 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) [2021-06-12 18:40:58,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 800 transitions. [2021-06-12 18:40:58,868 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 800 transitions. Word has length 46 [2021-06-12 18:40:58,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:40:58,868 INFO L482 AbstractCegarLoop]: Abstraction has 363 states and 800 transitions. [2021-06-12 18:40:58,868 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) [2021-06-12 18:40:58,868 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 800 transitions. [2021-06-12 18:40:58,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 18:40:58,869 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:40:58,869 INFO L472 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] [2021-06-12 18:40:58,870 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-12 18:40:58,870 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:40:58,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:40:58,870 INFO L82 PathProgramCache]: Analyzing trace with hash -966462837, now seen corresponding path program 1 times [2021-06-12 18:40:58,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:40:58,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296837625] [2021-06-12 18:40:58,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:40:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:40:59,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:40:59,355 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:40:59,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296837625] [2021-06-12 18:40:59,357 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296837625] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:40:59,357 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:40:59,357 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-12 18:40:59,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13567632] [2021-06-12 18:40:59,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-12 18:40:59,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:40:59,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-12 18:40:59,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2021-06-12 18:40:59,362 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) [2021-06-12 18:41:01,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:41:01,140 INFO L93 Difference]: Finished difference Result 507 states and 1077 transitions. [2021-06-12 18:41:01,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-12 18:41:01,140 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 [2021-06-12 18:41:01,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:41:01,142 INFO L225 Difference]: With dead ends: 507 [2021-06-12 18:41:01,142 INFO L226 Difference]: Without dead ends: 361 [2021-06-12 18:41:01,143 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 1498.8ms TimeCoverageRelationStatistics Valid=549, Invalid=2873, Unknown=0, NotChecked=0, Total=3422 [2021-06-12 18:41:01,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2021-06-12 18:41:01,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2021-06-12 18:41:01,151 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) [2021-06-12 18:41:01,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 796 transitions. [2021-06-12 18:41:01,153 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 796 transitions. Word has length 61 [2021-06-12 18:41:01,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:41:01,153 INFO L482 AbstractCegarLoop]: Abstraction has 361 states and 796 transitions. [2021-06-12 18:41:01,153 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) [2021-06-12 18:41:01,153 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 796 transitions. [2021-06-12 18:41:01,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 18:41:01,154 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:41:01,154 INFO L472 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] [2021-06-12 18:41:01,155 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-12 18:41:01,155 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:41:01,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:41:01,155 INFO L82 PathProgramCache]: Analyzing trace with hash -864990683, now seen corresponding path program 2 times [2021-06-12 18:41:01,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:41:01,156 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352846872] [2021-06-12 18:41:01,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:41:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:41:01,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:41:01,626 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:41:01,626 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352846872] [2021-06-12 18:41:01,626 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352846872] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:41:01,627 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:41:01,627 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-12 18:41:01,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272180310] [2021-06-12 18:41:01,627 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-12 18:41:01,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:41:01,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-12 18:41:01,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2021-06-12 18:41:01,628 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) [2021-06-12 18:41:03,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:41:03,249 INFO L93 Difference]: Finished difference Result 501 states and 1067 transitions. [2021-06-12 18:41:03,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-12 18:41:03,250 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 [2021-06-12 18:41:03,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:41:03,251 INFO L225 Difference]: With dead ends: 501 [2021-06-12 18:41:03,252 INFO L226 Difference]: Without dead ends: 357 [2021-06-12 18:41:03,253 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 1399.0ms TimeCoverageRelationStatistics Valid=549, Invalid=2873, Unknown=0, NotChecked=0, Total=3422 [2021-06-12 18:41:03,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2021-06-12 18:41:03,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2021-06-12 18:41:03,259 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) [2021-06-12 18:41:03,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 788 transitions. [2021-06-12 18:41:03,260 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 788 transitions. Word has length 61 [2021-06-12 18:41:03,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:41:03,261 INFO L482 AbstractCegarLoop]: Abstraction has 357 states and 788 transitions. [2021-06-12 18:41:03,261 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) [2021-06-12 18:41:03,261 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 788 transitions. [2021-06-12 18:41:03,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 18:41:03,262 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:41:03,262 INFO L472 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] [2021-06-12 18:41:03,262 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-12 18:41:03,262 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:41:03,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:41:03,263 INFO L82 PathProgramCache]: Analyzing trace with hash -365099227, now seen corresponding path program 3 times [2021-06-12 18:41:03,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:41:03,263 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509095664] [2021-06-12 18:41:03,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:41:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:41:03,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:41:03,680 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:41:03,680 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509095664] [2021-06-12 18:41:03,680 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509095664] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:41:03,680 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:41:03,680 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-12 18:41:03,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697729830] [2021-06-12 18:41:03,681 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-12 18:41:03,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:41:03,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-12 18:41:03,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-12 18:41:03,682 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) [2021-06-12 18:41:05,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:41:05,655 INFO L93 Difference]: Finished difference Result 611 states and 1298 transitions. [2021-06-12 18:41:05,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-12 18:41:05,656 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 [2021-06-12 18:41:05,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:41:05,658 INFO L225 Difference]: With dead ends: 611 [2021-06-12 18:41:05,658 INFO L226 Difference]: Without dead ends: 473 [2021-06-12 18:41:05,659 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 1770.4ms TimeCoverageRelationStatistics Valid=548, Invalid=2874, Unknown=0, NotChecked=0, Total=3422 [2021-06-12 18:41:05,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2021-06-12 18:41:05,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 357. [2021-06-12 18:41:05,667 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) [2021-06-12 18:41:05,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 784 transitions. [2021-06-12 18:41:05,668 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 784 transitions. Word has length 61 [2021-06-12 18:41:05,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:41:05,668 INFO L482 AbstractCegarLoop]: Abstraction has 357 states and 784 transitions. [2021-06-12 18:41:05,668 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) [2021-06-12 18:41:05,668 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 784 transitions. [2021-06-12 18:41:05,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 18:41:05,670 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:41:05,670 INFO L472 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] [2021-06-12 18:41:05,670 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-12 18:41:05,670 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:41:05,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:41:05,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1575987557, now seen corresponding path program 4 times [2021-06-12 18:41:05,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:41:05,671 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917584041] [2021-06-12 18:41:05,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:41:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:41:06,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:41:06,143 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:41:06,143 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917584041] [2021-06-12 18:41:06,143 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917584041] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:41:06,143 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:41:06,143 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-12 18:41:06,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441257487] [2021-06-12 18:41:06,144 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-12 18:41:06,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:41:06,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-12 18:41:06,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=699, Unknown=0, NotChecked=0, Total=756 [2021-06-12 18:41:06,145 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) [2021-06-12 18:41:07,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:41:07,774 INFO L93 Difference]: Finished difference Result 471 states and 1004 transitions. [2021-06-12 18:41:07,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-12 18:41:07,774 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 [2021-06-12 18:41:07,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:41:07,776 INFO L225 Difference]: With dead ends: 471 [2021-06-12 18:41:07,776 INFO L226 Difference]: Without dead ends: 373 [2021-06-12 18:41:07,777 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 1368.5ms TimeCoverageRelationStatistics Valid=569, Invalid=3091, Unknown=0, NotChecked=0, Total=3660 [2021-06-12 18:41:07,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2021-06-12 18:41:07,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 357. [2021-06-12 18:41:07,783 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) [2021-06-12 18:41:07,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 776 transitions. [2021-06-12 18:41:07,784 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 776 transitions. Word has length 61 [2021-06-12 18:41:07,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:41:07,785 INFO L482 AbstractCegarLoop]: Abstraction has 357 states and 776 transitions. [2021-06-12 18:41:07,785 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) [2021-06-12 18:41:07,785 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 776 transitions. [2021-06-12 18:41:07,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 18:41:07,786 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:41:07,786 INFO L472 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] [2021-06-12 18:41:07,786 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-12 18:41:07,786 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:41:07,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:41:07,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1037537445, now seen corresponding path program 5 times [2021-06-12 18:41:07,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:41:07,787 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071071741] [2021-06-12 18:41:07,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:41:07,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:41:08,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:41:08,177 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:41:08,177 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071071741] [2021-06-12 18:41:08,177 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071071741] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:41:08,177 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:41:08,177 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-12 18:41:08,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137482322] [2021-06-12 18:41:08,177 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-12 18:41:08,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:41:08,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-12 18:41:08,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=648, Unknown=0, NotChecked=0, Total=702 [2021-06-12 18:41:08,178 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) [2021-06-12 18:41:10,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:41:10,290 INFO L93 Difference]: Finished difference Result 447 states and 942 transitions. [2021-06-12 18:41:10,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-12 18:41:10,290 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 [2021-06-12 18:41:10,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:41:10,292 INFO L225 Difference]: With dead ends: 447 [2021-06-12 18:41:10,292 INFO L226 Difference]: Without dead ends: 365 [2021-06-12 18:41:10,293 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 1794.4ms TimeCoverageRelationStatistics Valid=520, Invalid=2902, Unknown=0, NotChecked=0, Total=3422 [2021-06-12 18:41:10,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2021-06-12 18:41:10,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 357. [2021-06-12 18:41:10,299 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) [2021-06-12 18:41:10,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 772 transitions. [2021-06-12 18:41:10,300 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 772 transitions. Word has length 61 [2021-06-12 18:41:10,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:41:10,300 INFO L482 AbstractCegarLoop]: Abstraction has 357 states and 772 transitions. [2021-06-12 18:41:10,301 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) [2021-06-12 18:41:10,301 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 772 transitions. [2021-06-12 18:41:10,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 18:41:10,302 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:41:10,302 INFO L472 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] [2021-06-12 18:41:10,302 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-12 18:41:10,302 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:41:10,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:41:10,302 INFO L82 PathProgramCache]: Analyzing trace with hash 80065675, now seen corresponding path program 6 times [2021-06-12 18:41:10,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:41:10,303 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616499015] [2021-06-12 18:41:10,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:41:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:41:10,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:41:10,700 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:41:10,700 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616499015] [2021-06-12 18:41:10,700 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616499015] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:41:10,700 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:41:10,700 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-12 18:41:10,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123159185] [2021-06-12 18:41:10,701 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-12 18:41:10,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:41:10,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-12 18:41:10,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=647, Unknown=0, NotChecked=0, Total=702 [2021-06-12 18:41:10,701 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) [2021-06-12 18:41:12,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:41:12,695 INFO L93 Difference]: Finished difference Result 439 states and 920 transitions. [2021-06-12 18:41:12,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-12 18:41:12,696 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 [2021-06-12 18:41:12,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:41:12,697 INFO L225 Difference]: With dead ends: 439 [2021-06-12 18:41:12,697 INFO L226 Difference]: Without dead ends: 365 [2021-06-12 18:41:12,698 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 1778.8ms TimeCoverageRelationStatistics Valid=565, Invalid=3095, Unknown=0, NotChecked=0, Total=3660 [2021-06-12 18:41:12,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2021-06-12 18:41:12,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 357. [2021-06-12 18:41:12,704 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) [2021-06-12 18:41:12,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 768 transitions. [2021-06-12 18:41:12,705 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 768 transitions. Word has length 61 [2021-06-12 18:41:12,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:41:12,706 INFO L482 AbstractCegarLoop]: Abstraction has 357 states and 768 transitions. [2021-06-12 18:41:12,706 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) [2021-06-12 18:41:12,706 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 768 transitions. [2021-06-12 18:41:12,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 18:41:12,707 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:41:12,707 INFO L472 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] [2021-06-12 18:41:12,707 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-12 18:41:12,707 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:41:12,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:41:12,708 INFO L82 PathProgramCache]: Analyzing trace with hash -80785499, now seen corresponding path program 7 times [2021-06-12 18:41:12,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:41:12,708 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345202177] [2021-06-12 18:41:12,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:41:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:41:13,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:41:13,086 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:41:13,086 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345202177] [2021-06-12 18:41:13,086 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345202177] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:41:13,086 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:41:13,086 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-12 18:41:13,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565533101] [2021-06-12 18:41:13,087 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-12 18:41:13,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:41:13,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-12 18:41:13,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2021-06-12 18:41:13,088 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) [2021-06-12 18:41:14,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:41:14,622 INFO L93 Difference]: Finished difference Result 459 states and 942 transitions. [2021-06-12 18:41:14,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-12 18:41:14,623 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 [2021-06-12 18:41:14,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:41:14,624 INFO L225 Difference]: With dead ends: 459 [2021-06-12 18:41:14,624 INFO L226 Difference]: Without dead ends: 393 [2021-06-12 18:41:14,625 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 1293.6ms TimeCoverageRelationStatistics Valid=556, Invalid=2984, Unknown=0, NotChecked=0, Total=3540 [2021-06-12 18:41:14,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2021-06-12 18:41:14,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 357. [2021-06-12 18:41:14,632 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) [2021-06-12 18:41:14,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 760 transitions. [2021-06-12 18:41:14,633 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 760 transitions. Word has length 61 [2021-06-12 18:41:14,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:41:14,633 INFO L482 AbstractCegarLoop]: Abstraction has 357 states and 760 transitions. [2021-06-12 18:41:14,633 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) [2021-06-12 18:41:14,633 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 760 transitions. [2021-06-12 18:41:14,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 18:41:14,634 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:41:14,634 INFO L472 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] [2021-06-12 18:41:14,634 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-12 18:41:14,634 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:41:14,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:41:14,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1583628635, now seen corresponding path program 8 times [2021-06-12 18:41:14,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:41:14,635 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923786693] [2021-06-12 18:41:14,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:41:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:41:15,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:41:15,025 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:41:15,025 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923786693] [2021-06-12 18:41:15,026 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923786693] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:41:15,026 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:41:15,026 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-12 18:41:15,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522039639] [2021-06-12 18:41:15,026 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-12 18:41:15,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:41:15,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-12 18:41:15,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2021-06-12 18:41:15,027 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) [2021-06-12 18:41:16,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:41:16,496 INFO L93 Difference]: Finished difference Result 427 states and 866 transitions. [2021-06-12 18:41:16,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-12 18:41:16,496 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 [2021-06-12 18:41:16,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:41:16,497 INFO L225 Difference]: With dead ends: 427 [2021-06-12 18:41:16,497 INFO L226 Difference]: Without dead ends: 377 [2021-06-12 18:41:16,498 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 1263.0ms TimeCoverageRelationStatistics Valid=532, Invalid=2890, Unknown=0, NotChecked=0, Total=3422 [2021-06-12 18:41:16,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-06-12 18:41:16,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 357. [2021-06-12 18:41:16,504 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) [2021-06-12 18:41:16,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 752 transitions. [2021-06-12 18:41:16,505 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 752 transitions. Word has length 61 [2021-06-12 18:41:16,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:41:16,505 INFO L482 AbstractCegarLoop]: Abstraction has 357 states and 752 transitions. [2021-06-12 18:41:16,505 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) [2021-06-12 18:41:16,506 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 752 transitions. [2021-06-12 18:41:16,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 18:41:16,506 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:41:16,506 INFO L472 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] [2021-06-12 18:41:16,507 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-12 18:41:16,507 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:41:16,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:41:16,507 INFO L82 PathProgramCache]: Analyzing trace with hash -203984667, now seen corresponding path program 9 times [2021-06-12 18:41:16,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:41:16,507 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976429765] [2021-06-12 18:41:16,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:41:16,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:41:16,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:41:16,912 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:41:16,912 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976429765] [2021-06-12 18:41:16,912 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976429765] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:41:16,912 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:41:16,912 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-12 18:41:16,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517063026] [2021-06-12 18:41:16,912 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-12 18:41:16,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:41:16,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-12 18:41:16,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2021-06-12 18:41:16,913 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) [2021-06-12 18:41:18,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:41:18,287 INFO L93 Difference]: Finished difference Result 393 states and 799 transitions. [2021-06-12 18:41:18,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-12 18:41:18,288 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 [2021-06-12 18:41:18,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:41:18,289 INFO L225 Difference]: With dead ends: 393 [2021-06-12 18:41:18,289 INFO L226 Difference]: Without dead ends: 359 [2021-06-12 18:41:18,290 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 1226.6ms TimeCoverageRelationStatistics Valid=523, Invalid=2899, Unknown=0, NotChecked=0, Total=3422 [2021-06-12 18:41:18,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2021-06-12 18:41:18,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 357. [2021-06-12 18:41:18,295 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) [2021-06-12 18:41:18,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 751 transitions. [2021-06-12 18:41:18,296 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 751 transitions. Word has length 61 [2021-06-12 18:41:18,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:41:18,296 INFO L482 AbstractCegarLoop]: Abstraction has 357 states and 751 transitions. [2021-06-12 18:41:18,296 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) [2021-06-12 18:41:18,296 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 751 transitions. [2021-06-12 18:41:18,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 18:41:18,297 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:41:18,297 INFO L472 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] [2021-06-12 18:41:18,297 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-12 18:41:18,297 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:41:18,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:41:18,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1321800075, now seen corresponding path program 10 times [2021-06-12 18:41:18,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:41:18,298 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481003723] [2021-06-12 18:41:18,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:41:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:41:18,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:41:18,703 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:41:18,703 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481003723] [2021-06-12 18:41:18,703 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481003723] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:41:18,703 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:41:18,703 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-12 18:41:18,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943879371] [2021-06-12 18:41:18,704 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-12 18:41:18,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:41:18,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-12 18:41:18,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-12 18:41:18,705 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) [2021-06-12 18:41:20,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:41:20,676 INFO L93 Difference]: Finished difference Result 401 states and 810 transitions. [2021-06-12 18:41:20,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-12 18:41:20,677 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 [2021-06-12 18:41:20,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:41:20,678 INFO L225 Difference]: With dead ends: 401 [2021-06-12 18:41:20,678 INFO L226 Difference]: Without dead ends: 369 [2021-06-12 18:41:20,679 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 1773.5ms TimeCoverageRelationStatistics Valid=554, Invalid=2986, Unknown=0, NotChecked=0, Total=3540 [2021-06-12 18:41:20,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2021-06-12 18:41:20,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 357. [2021-06-12 18:41:20,684 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) [2021-06-12 18:41:20,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 748 transitions. [2021-06-12 18:41:20,685 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 748 transitions. Word has length 61 [2021-06-12 18:41:20,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:41:20,686 INFO L482 AbstractCegarLoop]: Abstraction has 357 states and 748 transitions. [2021-06-12 18:41:20,686 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) [2021-06-12 18:41:20,686 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 748 transitions. [2021-06-12 18:41:20,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 18:41:20,686 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:41:20,687 INFO L472 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] [2021-06-12 18:41:20,687 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-12 18:41:20,687 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:41:20,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:41:20,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1898712805, now seen corresponding path program 11 times [2021-06-12 18:41:20,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:41:20,687 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78637771] [2021-06-12 18:41:20,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:41:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:41:21,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:41:21,051 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:41:21,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78637771] [2021-06-12 18:41:21,051 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78637771] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:41:21,051 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:41:21,051 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-12 18:41:21,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471618729] [2021-06-12 18:41:21,051 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-12 18:41:21,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:41:21,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-12 18:41:21,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-12 18:41:21,052 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) [2021-06-12 18:41:22,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:41:22,876 INFO L93 Difference]: Finished difference Result 385 states and 783 transitions. [2021-06-12 18:41:22,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-12 18:41:22,876 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 [2021-06-12 18:41:22,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:41:22,878 INFO L225 Difference]: With dead ends: 385 [2021-06-12 18:41:22,878 INFO L226 Difference]: Without dead ends: 359 [2021-06-12 18:41:22,879 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 1623.0ms TimeCoverageRelationStatistics Valid=518, Invalid=2788, Unknown=0, NotChecked=0, Total=3306 [2021-06-12 18:41:22,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2021-06-12 18:41:22,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 357. [2021-06-12 18:41:22,884 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) [2021-06-12 18:41:22,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 747 transitions. [2021-06-12 18:41:22,885 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 747 transitions. Word has length 61 [2021-06-12 18:41:22,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:41:22,885 INFO L482 AbstractCegarLoop]: Abstraction has 357 states and 747 transitions. [2021-06-12 18:41:22,885 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) [2021-06-12 18:41:22,885 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 747 transitions. [2021-06-12 18:41:22,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 18:41:22,886 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:41:22,886 INFO L472 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] [2021-06-12 18:41:22,886 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-12 18:41:22,886 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:41:22,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:41:22,887 INFO L82 PathProgramCache]: Analyzing trace with hash -471612533, now seen corresponding path program 12 times [2021-06-12 18:41:22,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:41:22,887 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533194146] [2021-06-12 18:41:22,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:41:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:41:23,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:41:23,253 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:41:23,254 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533194146] [2021-06-12 18:41:23,254 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533194146] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:41:23,254 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:41:23,254 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-12 18:41:23,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156697046] [2021-06-12 18:41:23,254 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-12 18:41:23,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:41:23,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-12 18:41:23,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-12 18:41:23,255 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) [2021-06-12 18:41:25,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:41:25,169 INFO L93 Difference]: Finished difference Result 381 states and 776 transitions. [2021-06-12 18:41:25,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-12 18:41:25,169 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 [2021-06-12 18:41:25,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:41:25,170 INFO L225 Difference]: With dead ends: 381 [2021-06-12 18:41:25,170 INFO L226 Difference]: Without dead ends: 357 [2021-06-12 18:41:25,171 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 1697.0ms TimeCoverageRelationStatistics Valid=546, Invalid=2876, Unknown=0, NotChecked=0, Total=3422 [2021-06-12 18:41:25,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2021-06-12 18:41:25,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2021-06-12 18:41:25,175 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) [2021-06-12 18:41:25,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 745 transitions. [2021-06-12 18:41:25,176 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 745 transitions. Word has length 61 [2021-06-12 18:41:25,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:41:25,177 INFO L482 AbstractCegarLoop]: Abstraction has 357 states and 745 transitions. [2021-06-12 18:41:25,177 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) [2021-06-12 18:41:25,177 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 745 transitions. [2021-06-12 18:41:25,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 18:41:25,177 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:41:25,178 INFO L472 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] [2021-06-12 18:41:25,178 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-12 18:41:25,178 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:41:25,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:41:25,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1001105035, now seen corresponding path program 13 times [2021-06-12 18:41:25,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:41:25,178 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291682221] [2021-06-12 18:41:25,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:41:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:41:25,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:41:25,625 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:41:25,625 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291682221] [2021-06-12 18:41:25,625 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291682221] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:41:25,625 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:41:25,626 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-06-12 18:41:25,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314965949] [2021-06-12 18:41:25,626 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-12 18:41:25,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:41:25,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-12 18:41:25,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2021-06-12 18:41:25,627 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) [2021-06-12 18:41:28,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:41:28,008 INFO L93 Difference]: Finished difference Result 377 states and 768 transitions. [2021-06-12 18:41:28,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-12 18:41:28,008 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 [2021-06-12 18:41:28,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:41:28,009 INFO L225 Difference]: With dead ends: 377 [2021-06-12 18:41:28,009 INFO L226 Difference]: Without dead ends: 225 [2021-06-12 18:41:28,010 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 701 ImplicationChecksByTransitivity, 2148.0ms TimeCoverageRelationStatistics Valid=633, Invalid=3789, Unknown=0, NotChecked=0, Total=4422 [2021-06-12 18:41:28,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-06-12 18:41:28,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2021-06-12 18:41:28,012 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) [2021-06-12 18:41:28,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 445 transitions. [2021-06-12 18:41:28,013 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 445 transitions. Word has length 61 [2021-06-12 18:41:28,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:41:28,013 INFO L482 AbstractCegarLoop]: Abstraction has 225 states and 445 transitions. [2021-06-12 18:41:28,013 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) [2021-06-12 18:41:28,013 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 445 transitions. [2021-06-12 18:41:28,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 18:41:28,014 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:41:28,014 INFO L472 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] [2021-06-12 18:41:28,014 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-12 18:41:28,014 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:41:28,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:41:28,015 INFO L82 PathProgramCache]: Analyzing trace with hash 976306789, now seen corresponding path program 14 times [2021-06-12 18:41:28,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:41:28,015 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17043726] [2021-06-12 18:41:28,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:41:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:41:28,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:41:28,417 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:41:28,417 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17043726] [2021-06-12 18:41:28,417 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17043726] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:41:28,417 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:41:28,417 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-12 18:41:28,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219658617] [2021-06-12 18:41:28,418 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-12 18:41:28,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:41:28,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-12 18:41:28,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=650, Unknown=0, NotChecked=0, Total=702 [2021-06-12 18:41:28,420 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) [2021-06-12 18:41:30,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:41:30,282 INFO L93 Difference]: Finished difference Result 331 states and 647 transitions. [2021-06-12 18:41:30,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-12 18:41:30,283 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 [2021-06-12 18:41:30,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:41:30,283 INFO L225 Difference]: With dead ends: 331 [2021-06-12 18:41:30,283 INFO L226 Difference]: Without dead ends: 213 [2021-06-12 18:41:30,284 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 1678.5ms TimeCoverageRelationStatistics Valid=516, Invalid=2906, Unknown=0, NotChecked=0, Total=3422 [2021-06-12 18:41:30,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-06-12 18:41:30,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2021-06-12 18:41:30,287 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) [2021-06-12 18:41:30,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 412 transitions. [2021-06-12 18:41:30,288 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 412 transitions. Word has length 61 [2021-06-12 18:41:30,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:41:30,288 INFO L482 AbstractCegarLoop]: Abstraction has 213 states and 412 transitions. [2021-06-12 18:41:30,288 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) [2021-06-12 18:41:30,288 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 412 transitions. [2021-06-12 18:41:30,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 18:41:30,289 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:41:30,289 INFO L472 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] [2021-06-12 18:41:30,289 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-12 18:41:30,289 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:41:30,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:41:30,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1338136393, now seen corresponding path program 15 times [2021-06-12 18:41:30,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:41:30,290 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006738237] [2021-06-12 18:41:30,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:41:30,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:41:30,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:41:30,663 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:41:30,663 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006738237] [2021-06-12 18:41:30,663 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006738237] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:41:30,663 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:41:30,663 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-12 18:41:30,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166835736] [2021-06-12 18:41:30,663 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-12 18:41:30,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:41:30,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-12 18:41:30,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-12 18:41:30,664 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) [2021-06-12 18:41:32,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:41:32,483 INFO L93 Difference]: Finished difference Result 327 states and 632 transitions. [2021-06-12 18:41:32,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-12 18:41:32,483 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 [2021-06-12 18:41:32,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:41:32,484 INFO L225 Difference]: With dead ends: 327 [2021-06-12 18:41:32,484 INFO L226 Difference]: Without dead ends: 201 [2021-06-12 18:41:32,484 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 1664.7ms TimeCoverageRelationStatistics Valid=545, Invalid=2877, Unknown=0, NotChecked=0, Total=3422 [2021-06-12 18:41:32,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-06-12 18:41:32,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2021-06-12 18:41:32,487 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) [2021-06-12 18:41:32,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 379 transitions. [2021-06-12 18:41:32,488 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 379 transitions. Word has length 61 [2021-06-12 18:41:32,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:41:32,488 INFO L482 AbstractCegarLoop]: Abstraction has 201 states and 379 transitions. [2021-06-12 18:41:32,488 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) [2021-06-12 18:41:32,488 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 379 transitions. [2021-06-12 18:41:32,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 18:41:32,489 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:41:32,489 INFO L472 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] [2021-06-12 18:41:32,489 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-12 18:41:32,489 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:41:32,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:41:32,490 INFO L82 PathProgramCache]: Analyzing trace with hash -422724669, now seen corresponding path program 16 times [2021-06-12 18:41:32,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:41:32,490 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328245195] [2021-06-12 18:41:32,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:41:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:41:32,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:41:32,879 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:41:32,880 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328245195] [2021-06-12 18:41:32,880 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328245195] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:41:32,880 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:41:32,880 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-12 18:41:32,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421461724] [2021-06-12 18:41:32,880 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-12 18:41:32,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:41:32,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-12 18:41:32,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-12 18:41:32,881 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) [2021-06-12 18:41:34,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:41:34,645 INFO L93 Difference]: Finished difference Result 323 states and 617 transitions. [2021-06-12 18:41:34,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-12 18:41:34,645 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 [2021-06-12 18:41:34,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:41:34,646 INFO L225 Difference]: With dead ends: 323 [2021-06-12 18:41:34,646 INFO L226 Difference]: Without dead ends: 189 [2021-06-12 18:41:34,647 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 1636.5ms TimeCoverageRelationStatistics Valid=546, Invalid=2876, Unknown=0, NotChecked=0, Total=3422 [2021-06-12 18:41:34,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-06-12 18:41:34,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2021-06-12 18:41:34,649 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) [2021-06-12 18:41:34,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 346 transitions. [2021-06-12 18:41:34,650 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 346 transitions. Word has length 61 [2021-06-12 18:41:34,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:41:34,650 INFO L482 AbstractCegarLoop]: Abstraction has 189 states and 346 transitions. [2021-06-12 18:41:34,650 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) [2021-06-12 18:41:34,650 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 346 transitions. [2021-06-12 18:41:34,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 18:41:34,651 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:41:34,651 INFO L472 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] [2021-06-12 18:41:34,651 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-12 18:41:34,652 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:41:34,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:41:34,652 INFO L82 PathProgramCache]: Analyzing trace with hash -2047826581, now seen corresponding path program 17 times [2021-06-12 18:41:34,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:41:34,652 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028144045] [2021-06-12 18:41:34,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:41:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:41:35,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:41:35,051 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:41:35,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028144045] [2021-06-12 18:41:35,051 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028144045] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:41:35,052 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:41:35,052 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-12 18:41:35,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466936034] [2021-06-12 18:41:35,052 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-12 18:41:35,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:41:35,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-12 18:41:35,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-12 18:41:35,053 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) [2021-06-12 18:41:36,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:41:36,878 INFO L93 Difference]: Finished difference Result 319 states and 602 transitions. [2021-06-12 18:41:36,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-12 18:41:36,878 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 [2021-06-12 18:41:36,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:41:36,879 INFO L225 Difference]: With dead ends: 319 [2021-06-12 18:41:36,879 INFO L226 Difference]: Without dead ends: 165 [2021-06-12 18:41:36,879 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 1723.2ms TimeCoverageRelationStatistics Valid=547, Invalid=2875, Unknown=0, NotChecked=0, Total=3422 [2021-06-12 18:41:36,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-06-12 18:41:36,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2021-06-12 18:41:36,881 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) [2021-06-12 18:41:36,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 302 transitions. [2021-06-12 18:41:36,881 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 302 transitions. Word has length 61 [2021-06-12 18:41:36,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:41:36,882 INFO L482 AbstractCegarLoop]: Abstraction has 165 states and 302 transitions. [2021-06-12 18:41:36,882 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) [2021-06-12 18:41:36,882 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 302 transitions. [2021-06-12 18:41:36,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 18:41:36,883 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:41:36,883 INFO L472 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] [2021-06-12 18:41:36,883 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-12 18:41:36,883 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:41:36,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:41:36,883 INFO L82 PathProgramCache]: Analyzing trace with hash -2091397663, now seen corresponding path program 18 times [2021-06-12 18:41:36,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:41:36,883 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976013315] [2021-06-12 18:41:36,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:41:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:41:37,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:41:37,323 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:41:37,323 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976013315] [2021-06-12 18:41:37,323 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976013315] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:41:37,324 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:41:37,324 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-12 18:41:37,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687709746] [2021-06-12 18:41:37,324 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-12 18:41:37,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:41:37,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-12 18:41:37,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2021-06-12 18:41:37,325 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) [2021-06-12 18:41:38,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:41:38,635 INFO L93 Difference]: Finished difference Result 164 states and 301 transitions. [2021-06-12 18:41:38,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-12 18:41:38,636 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 [2021-06-12 18:41:38,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:41:38,636 INFO L225 Difference]: With dead ends: 164 [2021-06-12 18:41:38,636 INFO L226 Difference]: Without dead ends: 0 [2021-06-12 18:41:38,637 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 1261.6ms TimeCoverageRelationStatistics Valid=549, Invalid=2873, Unknown=0, NotChecked=0, Total=3422 [2021-06-12 18:41:38,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-12 18:41:38,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-12 18:41:38,637 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) [2021-06-12 18:41:38,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-12 18:41:38,637 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2021-06-12 18:41:38,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:41:38,637 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-12 18:41:38,637 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) [2021-06-12 18:41:38,637 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-12 18:41:38,638 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-12 18:41:38,638 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-12 18:41:38,638 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (4/5) [2021-06-12 18:41:38,639 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-12 18:41:38,641 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 18:41:38,641 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 18:41:38,641 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 18:41:38,642 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 18:41:38,642 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 18:41:38,642 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 18:41:38,642 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 18:41:38,642 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == barThread1of1ForFork0======== [2021-06-12 18:41:38,646 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 89 transitions, 206 flow [2021-06-12 18:41:38,660 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) [2021-06-12 18:41:38,661 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) [2021-06-12 18:41:38,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-06-12 18:41:38,662 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:41:38,662 INFO L472 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] [2021-06-12 18:41:38,662 INFO L430 AbstractCegarLoop]: === Iteration 1 === [barErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 18:41:38,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:41:38,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1964643420, now seen corresponding path program 1 times [2021-06-12 18:41:38,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:41:38,663 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609528195] [2021-06-12 18:41:38,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:41:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:41:38,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:41:38,809 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:41:38,809 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609528195] [2021-06-12 18:41:38,809 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609528195] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:41:38,809 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:41:38,810 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-06-12 18:41:38,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558005729] [2021-06-12 18:41:38,810 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-12 18:41:38,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:41:38,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-12 18:41:38,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2021-06-12 18:41:38,818 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) [2021-06-12 18:41:39,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:41:39,355 INFO L93 Difference]: Finished difference Result 457 states and 961 transitions. [2021-06-12 18:41:39,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-12 18:41:39,355 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 [2021-06-12 18:41:39,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:41:39,355 INFO L225 Difference]: With dead ends: 457 [2021-06-12 18:41:39,355 INFO L226 Difference]: Without dead ends: 0 [2021-06-12 18:41:39,356 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 409.0ms TimeCoverageRelationStatistics Valid=221, Invalid=771, Unknown=0, NotChecked=0, Total=992 [2021-06-12 18:41:39,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-12 18:41:39,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-12 18:41:39,356 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) [2021-06-12 18:41:39,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-12 18:41:39,356 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2021-06-12 18:41:39,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 18:41:39,356 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-12 18:41:39,357 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) [2021-06-12 18:41:39,357 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-12 18:41:39,357 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-12 18:41:39,357 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-12 18:41:39,357 INFO L301 ceAbstractionStarter]: Result for error location barThread1of1ForFork0 was SAFE (5/5) [2021-06-12 18:41:39,358 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-12 18:41:39,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.06 06:41:39 BasicIcfg [2021-06-12 18:41:39,361 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-12 18:41:39,361 INFO L168 Benchmark]: Toolchain (without parser) took 46608.76 ms. Allocated memory was 174.1 MB in the beginning and 362.8 MB in the end (delta: 188.7 MB). Free memory was 136.4 MB in the beginning and 275.4 MB in the end (delta: -139.0 MB). Peak memory consumption was 51.3 MB. Max. memory is 8.0 GB. [2021-06-12 18:41:39,361 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 174.1 MB. Free memory is still 154.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-12 18:41:39,361 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.53 ms. Allocated memory is still 174.1 MB. Free memory was 136.2 MB in the beginning and 157.6 MB in the end (delta: -21.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-06-12 18:41:39,361 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.83 ms. Allocated memory is still 174.1 MB. Free memory was 157.6 MB in the beginning and 156.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-12 18:41:39,362 INFO L168 Benchmark]: Boogie Preprocessor took 20.40 ms. Allocated memory is still 174.1 MB. Free memory was 156.0 MB in the beginning and 155.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-12 18:41:39,362 INFO L168 Benchmark]: RCFGBuilder took 414.88 ms. Allocated memory is still 174.1 MB. Free memory was 154.5 MB in the beginning and 133.0 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-06-12 18:41:39,362 INFO L168 Benchmark]: TraceAbstraction took 45899.25 ms. Allocated memory was 174.1 MB in the beginning and 362.8 MB in the end (delta: 188.7 MB). Free memory was 132.4 MB in the beginning and 275.4 MB in the end (delta: -143.0 MB). Peak memory consumption was 47.4 MB. Max. memory is 8.0 GB. [2021-06-12 18:41:39,362 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 174.1 MB. Free memory is still 154.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 234.53 ms. Allocated memory is still 174.1 MB. Free memory was 136.2 MB in the beginning and 157.6 MB in the end (delta: -21.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 31.83 ms. Allocated memory is still 174.1 MB. Free memory was 157.6 MB in the beginning and 156.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 20.40 ms. Allocated memory is still 174.1 MB. Free memory was 156.0 MB in the beginning and 155.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 414.88 ms. Allocated memory is still 174.1 MB. Free memory was 154.5 MB in the beginning and 133.0 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 45899.25 ms. Allocated memory was 174.1 MB in the beginning and 362.8 MB in the end (delta: 188.7 MB). Free memory was 132.4 MB in the beginning and 275.4 MB in the end (delta: -143.0 MB). Peak memory consumption was 47.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 45]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: fooThread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 115 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 81.7ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 24.4ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 53.6ms, 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: bar 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: 2.1ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.1ms, 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: 17.2ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 3.9ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.2ms, 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: 44833.8ms, OverallIterations: 22, TraceHistogramMax: 1, EmptinessCheckTime: 21.8ms, AutomataDifference: 35141.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1818 SDtfs, 7155 SDslu, 24133 SDs, 0 SdLazy, 21046 SolverSat, 947 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8642.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1190 GetRequests, 46 SyntacticMatches, 10 SemanticMatches, 1134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9191 ImplicationChecksByTransitivity, 31078.9ms 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: 192.9ms AutomataMinimizationTime, 22 MinimizatonAttempts, 457 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 54.1ms SsaConstructionTime, 330.7ms SatisfiabilityAnalysisTime, 8860.0ms 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: 716.6ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 1.3ms, AutomataDifference: 545.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 76 SDtfs, 315 SDslu, 745 SDs, 0 SdLazy, 440 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 191.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 409.0ms 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: 0.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8ms SsaConstructionTime, 2.8ms SatisfiabilityAnalysisTime, 140.6ms 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...