/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/stack-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 18:08:17,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 18:08:17,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 18:08:17,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 18:08:17,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 18:08:17,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 18:08:17,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 18:08:17,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 18:08:17,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 18:08:17,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 18:08:17,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 18:08:17,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 18:08:17,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 18:08:17,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 18:08:17,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 18:08:17,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 18:08:17,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 18:08:17,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 18:08:17,565 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 18:08:17,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 18:08:17,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 18:08:17,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 18:08:17,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 18:08:17,580 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 18:08:17,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-05 18:08:17,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-05 18:08:17,585 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-05 18:08:17,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-05 18:08:17,586 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-05 18:08:17,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-05 18:08:17,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-05 18:08:17,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-05 18:08:17,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-05 18:08:17,590 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-05 18:08:17,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-05 18:08:17,591 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-05 18:08:17,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-05 18:08:17,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-05 18:08:17,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 18:08:17,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 18:08:17,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 18:08:17,594 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-05 18:08:17,627 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 18:08:17,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 18:08:17,628 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 18:08:17,628 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 18:08:17,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 18:08:17,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 18:08:17,630 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 18:08:17,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 18:08:17,631 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 18:08:17,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 18:08:17,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 18:08:17,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 18:08:17,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 18:08:17,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 18:08:17,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 18:08:17,632 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 18:08:17,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 18:08:17,632 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 18:08:17,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 18:08:17,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 18:08:17,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 18:08:17,633 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 18:08:17,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 18:08:17,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 18:08:17,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 18:08:17,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 18:08:17,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 18:08:17,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 18:08:17,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 18:08:17,634 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 18:08:17,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 18:08:17,634 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 18:08:17,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 18:08:17,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 18:08:17,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 18:08:17,932 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 18:08:17,932 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 18:08:17,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack-1.i [2021-06-05 18:08:17,987 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7ea80335/fc024635e9d4489e9513d295b102d170/FLAG00c3dbafe [2021-06-05 18:08:18,561 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 18:08:18,561 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack-1.i [2021-06-05 18:08:18,584 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7ea80335/fc024635e9d4489e9513d295b102d170/FLAG00c3dbafe [2021-06-05 18:08:18,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7ea80335/fc024635e9d4489e9513d295b102d170 [2021-06-05 18:08:19,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 18:08:19,004 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 18:08:19,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 18:08:19,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 18:08:19,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 18:08:19,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 06:08:19" (1/1) ... [2021-06-05 18:08:19,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@231ce324 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:08:19, skipping insertion in model container [2021-06-05 18:08:19,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 06:08:19" (1/1) ... [2021-06-05 18:08:19,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 18:08:19,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 18:08:19,421 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack-1.i[41520,41533] [2021-06-05 18:08:19,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 18:08:19,446 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 18:08:19,469 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack-1.i[41520,41533] [2021-06-05 18:08:19,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 18:08:19,598 INFO L208 MainTranslator]: Completed translation [2021-06-05 18:08:19,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:08:19 WrapperNode [2021-06-05 18:08:19,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 18:08:19,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 18:08:19,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 18:08:19,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 18:08:19,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:08:19" (1/1) ... [2021-06-05 18:08:19,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:08:19" (1/1) ... [2021-06-05 18:08:19,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 18:08:19,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 18:08:19,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 18:08:19,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 18:08:19,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:08:19" (1/1) ... [2021-06-05 18:08:19,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:08:19" (1/1) ... [2021-06-05 18:08:19,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:08:19" (1/1) ... [2021-06-05 18:08:19,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:08:19" (1/1) ... [2021-06-05 18:08:19,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:08:19" (1/1) ... [2021-06-05 18:08:19,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:08:19" (1/1) ... [2021-06-05 18:08:19,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:08:19" (1/1) ... [2021-06-05 18:08:19,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 18:08:19,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 18:08:19,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 18:08:19,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 18:08:19,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:08:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 18:08:19,788 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-06-05 18:08:19,788 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-06-05 18:08:19,788 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-06-05 18:08:19,789 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-06-05 18:08:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 18:08:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 18:08:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 18:08:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 18:08:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-05 18:08:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 18:08:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 18:08:19,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 18:08:19,791 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 18:08:20,229 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 18:08:20,229 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-06-05 18:08:20,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 06:08:20 BoogieIcfgContainer [2021-06-05 18:08:20,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 18:08:20,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 18:08:20,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 18:08:20,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 18:08:20,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 06:08:19" (1/3) ... [2021-06-05 18:08:20,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34875c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 06:08:20, skipping insertion in model container [2021-06-05 18:08:20,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 06:08:19" (2/3) ... [2021-06-05 18:08:20,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34875c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 06:08:20, skipping insertion in model container [2021-06-05 18:08:20,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 06:08:20" (3/3) ... [2021-06-05 18:08:20,236 INFO L111 eAbstractionObserver]: Analyzing ICFG stack-1.i [2021-06-05 18:08:20,241 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 18:08:20,241 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 18:08:20,241 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-06-05 18:08:20,242 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 18:08:20,288 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,288 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,289 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,289 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,289 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,289 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,289 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,290 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,290 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,290 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,291 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,291 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,291 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,291 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,291 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,291 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,291 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,292 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,292 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,292 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,292 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,292 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,292 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,293 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,294 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,294 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,294 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,294 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,294 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,294 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,294 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,295 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,295 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,295 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,295 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,295 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,295 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,296 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,296 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,296 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,296 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,296 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,297 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,297 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,297 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,297 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,297 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,297 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,297 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,298 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,298 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,298 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,298 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,298 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,298 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,298 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,299 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,299 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,299 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,299 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,299 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,299 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,299 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,300 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,300 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,300 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,300 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,300 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,300 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,300 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,300 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,301 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,301 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,301 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,301 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,301 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,301 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,301 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,302 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,302 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,302 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,302 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,302 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,302 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,303 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,303 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,303 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,303 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,303 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,303 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,303 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,304 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,304 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,304 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,304 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,304 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,304 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,304 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,305 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,305 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,305 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,305 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,305 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,305 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,305 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,305 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,306 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,306 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,306 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,306 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,306 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,306 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,306 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,307 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,307 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,307 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,307 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,307 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,307 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,307 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,308 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,308 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,308 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,308 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,308 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,308 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,308 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,308 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,308 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,309 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,309 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,309 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,309 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,309 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,309 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,309 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,310 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,310 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,310 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,310 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,311 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,311 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,311 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,311 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,311 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,311 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,311 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,311 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,312 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,312 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,312 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,312 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,312 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,312 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,312 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,312 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,312 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,313 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,313 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,313 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,313 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,313 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,313 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,313 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,314 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,314 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,314 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,314 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,314 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,314 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,314 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,314 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,314 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,314 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,315 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,315 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,315 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,315 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,315 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,315 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,315 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,315 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,315 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,315 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,316 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,316 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,316 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,316 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,316 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,316 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,316 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,316 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,317 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,317 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,317 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,317 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,317 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,317 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,317 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,317 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,318 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,318 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,318 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,318 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,318 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,318 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,318 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,319 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,319 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,319 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,319 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,319 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,319 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,319 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,319 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,320 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,320 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,320 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,320 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,320 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,320 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,320 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,321 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,321 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,321 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,321 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,321 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,321 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,321 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,322 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,322 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,322 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,322 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,322 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,322 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,322 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,322 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,322 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,322 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,323 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,323 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,323 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,323 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,323 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,323 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,323 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,325 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,325 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,325 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,325 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,325 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,326 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,326 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,326 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,326 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,326 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,326 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,326 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,326 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,327 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,327 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,327 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,327 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,327 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,327 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,327 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,327 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,327 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,328 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,332 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,332 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,332 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,332 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,332 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,332 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,332 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,333 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,333 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,333 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,333 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,333 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,333 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,333 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,333 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,334 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,334 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,334 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 18:08:20,340 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-05 18:08:20,357 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 18:08:20,383 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 18:08:20,383 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 18:08:20,383 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 18:08:20,383 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 18:08:20,383 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 18:08:20,383 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 18:08:20,383 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 18:08:20,384 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == t1Thread1of1ForFork0======== [2021-06-05 18:08:20,400 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 149 places, 154 transitions, 330 flow [2021-06-05 18:08:20,715 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8468 states, 8464 states have (on average 2.8676748582230625) internal successors, (24272), 8467 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:20,751 INFO L276 IsEmpty]: Start isEmpty. Operand has 8468 states, 8464 states have (on average 2.8676748582230625) internal successors, (24272), 8467 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:20,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 18:08:20,776 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:20,777 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:20,777 INFO L430 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:20,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:20,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1276574419, now seen corresponding path program 1 times [2021-06-05 18:08:20,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:20,788 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474879416] [2021-06-05 18:08:20,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:21,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:08:21,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:21,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474879416] [2021-06-05 18:08:21,069 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474879416] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 18:08:21,069 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 18:08:21,069 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 18:08:21,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341186444] [2021-06-05 18:08:21,073 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 18:08:21,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:21,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 18:08:21,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 18:08:21,106 INFO L87 Difference]: Start difference. First operand has 8468 states, 8464 states have (on average 2.8676748582230625) internal successors, (24272), 8467 states have internal predecessors, (24272), 0 states have call successors, (0), 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 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:21,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:21,264 INFO L93 Difference]: Finished difference Result 11839 states and 32309 transitions. [2021-06-05 18:08:21,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 18:08:21,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2021-06-05 18:08:21,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:21,330 INFO L225 Difference]: With dead ends: 11839 [2021-06-05 18:08:21,331 INFO L226 Difference]: Without dead ends: 10552 [2021-06-05 18:08:21,332 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 18:08:21,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10552 states. [2021-06-05 18:08:21,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10552 to 10228. [2021-06-05 18:08:21,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10228 states, 10226 states have (on average 2.759241150009779) internal successors, (28216), 10227 states have internal predecessors, (28216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:21,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10228 states to 10228 states and 28216 transitions. [2021-06-05 18:08:21,887 INFO L78 Accepts]: Start accepts. Automaton has 10228 states and 28216 transitions. Word has length 58 [2021-06-05 18:08:21,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:21,889 INFO L482 AbstractCegarLoop]: Abstraction has 10228 states and 28216 transitions. [2021-06-05 18:08:21,889 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:21,890 INFO L276 IsEmpty]: Start isEmpty. Operand 10228 states and 28216 transitions. [2021-06-05 18:08:21,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-06-05 18:08:21,896 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:21,897 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:21,897 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 18:08:21,898 INFO L430 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:21,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:21,900 INFO L82 PathProgramCache]: Analyzing trace with hash 503754833, now seen corresponding path program 1 times [2021-06-05 18:08:21,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:21,900 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479610757] [2021-06-05 18:08:21,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:22,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:08:22,028 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:22,028 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479610757] [2021-06-05 18:08:22,028 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479610757] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 18:08:22,028 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 18:08:22,030 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 18:08:22,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597925480] [2021-06-05 18:08:22,032 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-05 18:08:22,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:22,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-05 18:08:22,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-05 18:08:22,038 INFO L87 Difference]: Start difference. First operand 10228 states and 28216 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:22,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:22,212 INFO L93 Difference]: Finished difference Result 15016 states and 41364 transitions. [2021-06-05 18:08:22,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-05 18:08:22,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2021-06-05 18:08:22,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:22,264 INFO L225 Difference]: With dead ends: 15016 [2021-06-05 18:08:22,264 INFO L226 Difference]: Without dead ends: 15016 [2021-06-05 18:08:22,265 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 18:08:22,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15016 states. [2021-06-05 18:08:22,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15016 to 10984. [2021-06-05 18:08:22,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10984 states, 10982 states have (on average 2.7583318156984156) internal successors, (30292), 10983 states have internal predecessors, (30292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:22,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10984 states to 10984 states and 30292 transitions. [2021-06-05 18:08:22,671 INFO L78 Accepts]: Start accepts. Automaton has 10984 states and 30292 transitions. Word has length 67 [2021-06-05 18:08:22,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:22,672 INFO L482 AbstractCegarLoop]: Abstraction has 10984 states and 30292 transitions. [2021-06-05 18:08:22,672 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:22,672 INFO L276 IsEmpty]: Start isEmpty. Operand 10984 states and 30292 transitions. [2021-06-05 18:08:22,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-06-05 18:08:22,685 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:22,685 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:22,686 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 18:08:22,686 INFO L430 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:22,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:22,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1242964654, now seen corresponding path program 1 times [2021-06-05 18:08:22,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:22,687 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476320789] [2021-06-05 18:08:22,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:22,835 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:08:22,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:22,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476320789] [2021-06-05 18:08:22,836 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476320789] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:22,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246709540] [2021-06-05 18:08:22,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:22,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-05 18:08:22,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 18:08:23,259 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:08:23,259 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246709540] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:23,260 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 18:08:23,260 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-06-05 18:08:23,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223501278] [2021-06-05 18:08:23,260 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 18:08:23,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:23,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 18:08:23,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 18:08:23,261 INFO L87 Difference]: Start difference. First operand 10984 states and 30292 transitions. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:23,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:23,455 INFO L93 Difference]: Finished difference Result 18559 states and 50925 transitions. [2021-06-05 18:08:23,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 18:08:23,456 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 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 92 [2021-06-05 18:08:23,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:23,503 INFO L225 Difference]: With dead ends: 18559 [2021-06-05 18:08:23,504 INFO L226 Difference]: Without dead ends: 18559 [2021-06-05 18:08:23,504 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 52.7ms TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2021-06-05 18:08:23,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18559 states. [2021-06-05 18:08:23,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18559 to 14608. [2021-06-05 18:08:23,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14608 states, 14606 states have (on average 2.7526359030535397) internal successors, (40205), 14607 states have internal predecessors, (40205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:24,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14608 states to 14608 states and 40205 transitions. [2021-06-05 18:08:24,005 INFO L78 Accepts]: Start accepts. Automaton has 14608 states and 40205 transitions. Word has length 92 [2021-06-05 18:08:24,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:24,005 INFO L482 AbstractCegarLoop]: Abstraction has 14608 states and 40205 transitions. [2021-06-05 18:08:24,005 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:24,006 INFO L276 IsEmpty]: Start isEmpty. Operand 14608 states and 40205 transitions. [2021-06-05 18:08:24,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 18:08:24,027 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:24,027 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:24,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-06-05 18:08:24,241 INFO L430 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:24,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:24,241 INFO L82 PathProgramCache]: Analyzing trace with hash 838616789, now seen corresponding path program 1 times [2021-06-05 18:08:24,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:24,242 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642755367] [2021-06-05 18:08:24,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:24,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:24,292 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-06-05 18:08:24,293 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:24,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642755367] [2021-06-05 18:08:24,293 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642755367] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 18:08:24,293 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 18:08:24,293 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 18:08:24,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387187694] [2021-06-05 18:08:24,294 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 18:08:24,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:24,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 18:08:24,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 18:08:24,295 INFO L87 Difference]: Start difference. First operand 14608 states and 40205 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:24,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:24,325 INFO L93 Difference]: Finished difference Result 6200 states and 15967 transitions. [2021-06-05 18:08:24,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 18:08:24,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 113 [2021-06-05 18:08:24,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:24,342 INFO L225 Difference]: With dead ends: 6200 [2021-06-05 18:08:24,342 INFO L226 Difference]: Without dead ends: 6080 [2021-06-05 18:08:24,342 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 18:08:24,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6080 states. [2021-06-05 18:08:24,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6080 to 5880. [2021-06-05 18:08:24,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5880 states, 5878 states have (on average 2.5707723715549506) internal successors, (15111), 5879 states have internal predecessors, (15111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:24,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5880 states to 5880 states and 15111 transitions. [2021-06-05 18:08:24,453 INFO L78 Accepts]: Start accepts. Automaton has 5880 states and 15111 transitions. Word has length 113 [2021-06-05 18:08:24,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:24,454 INFO L482 AbstractCegarLoop]: Abstraction has 5880 states and 15111 transitions. [2021-06-05 18:08:24,455 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:24,455 INFO L276 IsEmpty]: Start isEmpty. Operand 5880 states and 15111 transitions. [2021-06-05 18:08:24,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-06-05 18:08:24,531 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:24,531 INFO L554 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:24,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 18:08:24,532 INFO L430 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:24,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:24,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1978965999, now seen corresponding path program 2 times [2021-06-05 18:08:24,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:24,533 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250557573] [2021-06-05 18:08:24,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:24,672 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 6 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:08:24,673 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:24,674 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250557573] [2021-06-05 18:08:24,674 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250557573] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:24,674 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338505972] [2021-06-05 18:08:24,675 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:24,797 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 18:08:24,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 18:08:24,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-05 18:08:24,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 18:08:24,993 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 6 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:08:24,994 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338505972] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:24,994 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 18:08:24,994 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-05 18:08:24,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147560324] [2021-06-05 18:08:24,995 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 18:08:24,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:24,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 18:08:24,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-06-05 18:08:24,996 INFO L87 Difference]: Start difference. First operand 5880 states and 15111 transitions. Second operand has 9 states, 9 states have (on average 19.666666666666668) internal successors, (177), 9 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:25,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:25,136 INFO L93 Difference]: Finished difference Result 9599 states and 24729 transitions. [2021-06-05 18:08:25,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 18:08:25,137 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.666666666666668) internal successors, (177), 9 states have internal predecessors, (177), 0 states have call successors, (0), 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 126 [2021-06-05 18:08:25,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:25,195 INFO L225 Difference]: With dead ends: 9599 [2021-06-05 18:08:25,195 INFO L226 Difference]: Without dead ends: 9599 [2021-06-05 18:08:25,195 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 73.6ms TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2021-06-05 18:08:25,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9599 states. [2021-06-05 18:08:25,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9599 to 7682. [2021-06-05 18:08:25,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7682 states, 7680 states have (on average 2.5678385416666667) internal successors, (19721), 7681 states have internal predecessors, (19721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:25,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 19721 transitions. [2021-06-05 18:08:25,334 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 19721 transitions. Word has length 126 [2021-06-05 18:08:25,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:25,335 INFO L482 AbstractCegarLoop]: Abstraction has 7682 states and 19721 transitions. [2021-06-05 18:08:25,335 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 19.666666666666668) internal successors, (177), 9 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:25,335 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 19721 transitions. [2021-06-05 18:08:25,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-06-05 18:08:25,346 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:25,346 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:25,568 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:25,569 INFO L430 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:25,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:25,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1435373191, now seen corresponding path program 1 times [2021-06-05 18:08:25,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:25,569 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695311814] [2021-06-05 18:08:25,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:25,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:25,697 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:08:25,697 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:25,697 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695311814] [2021-06-05 18:08:25,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695311814] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:25,697 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852241209] [2021-06-05 18:08:25,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:25,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-05 18:08:25,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 18:08:26,064 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-06-05 18:08:26,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852241209] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 18:08:26,065 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 18:08:26,065 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 8 [2021-06-05 18:08:26,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844832200] [2021-06-05 18:08:26,065 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 18:08:26,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:26,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 18:08:26,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-06-05 18:08:26,066 INFO L87 Difference]: Start difference. First operand 7682 states and 19721 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:26,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:26,181 INFO L93 Difference]: Finished difference Result 10337 states and 26617 transitions. [2021-06-05 18:08:26,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 18:08:26,182 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 0 states have call successors, (0), 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 127 [2021-06-05 18:08:26,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:26,202 INFO L225 Difference]: With dead ends: 10337 [2021-06-05 18:08:26,202 INFO L226 Difference]: Without dead ends: 10337 [2021-06-05 18:08:26,203 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 48.8ms TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-06-05 18:08:26,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10337 states. [2021-06-05 18:08:26,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10337 to 8942. [2021-06-05 18:08:26,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8942 states, 8940 states have (on average 2.5917225950783) internal successors, (23170), 8941 states have internal predecessors, (23170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:26,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8942 states to 8942 states and 23170 transitions. [2021-06-05 18:08:26,376 INFO L78 Accepts]: Start accepts. Automaton has 8942 states and 23170 transitions. Word has length 127 [2021-06-05 18:08:26,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:26,376 INFO L482 AbstractCegarLoop]: Abstraction has 8942 states and 23170 transitions. [2021-06-05 18:08:26,376 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:26,377 INFO L276 IsEmpty]: Start isEmpty. Operand 8942 states and 23170 transitions. [2021-06-05 18:08:26,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-06-05 18:08:26,392 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:26,392 INFO L554 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:26,604 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:26,605 INFO L430 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:26,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:26,605 INFO L82 PathProgramCache]: Analyzing trace with hash 486313200, now seen corresponding path program 3 times [2021-06-05 18:08:26,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:26,605 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497115687] [2021-06-05 18:08:26,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:26,707 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 9 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:08:26,707 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:26,707 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497115687] [2021-06-05 18:08:26,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497115687] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:26,707 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624524387] [2021-06-05 18:08:26,707 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:26,861 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-05 18:08:26,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 18:08:26,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-05 18:08:26,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 18:08:27,150 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 9 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:08:27,151 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624524387] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:27,151 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 18:08:27,151 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2021-06-05 18:08:27,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106296090] [2021-06-05 18:08:27,152 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 18:08:27,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:27,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 18:08:27,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-06-05 18:08:27,153 INFO L87 Difference]: Start difference. First operand 8942 states and 23170 transitions. Second operand has 11 states, 11 states have (on average 19.181818181818183) internal successors, (211), 11 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:27,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:27,343 INFO L93 Difference]: Finished difference Result 13941 states and 35975 transitions. [2021-06-05 18:08:27,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-05 18:08:27,343 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 19.181818181818183) internal successors, (211), 11 states have internal predecessors, (211), 0 states have call successors, (0), 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 160 [2021-06-05 18:08:27,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:27,382 INFO L225 Difference]: With dead ends: 13941 [2021-06-05 18:08:27,382 INFO L226 Difference]: Without dead ends: 13941 [2021-06-05 18:08:27,382 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 102.1ms TimeCoverageRelationStatistics Valid=121, Invalid=221, Unknown=0, NotChecked=0, Total=342 [2021-06-05 18:08:27,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13941 states. [2021-06-05 18:08:27,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13941 to 10744. [2021-06-05 18:08:27,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10744 states, 10742 states have (on average 2.586110593930367) internal successors, (27780), 10743 states have internal predecessors, (27780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:27,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10744 states to 10744 states and 27780 transitions. [2021-06-05 18:08:27,621 INFO L78 Accepts]: Start accepts. Automaton has 10744 states and 27780 transitions. Word has length 160 [2021-06-05 18:08:27,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:27,621 INFO L482 AbstractCegarLoop]: Abstraction has 10744 states and 27780 transitions. [2021-06-05 18:08:27,621 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 19.181818181818183) internal successors, (211), 11 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:27,621 INFO L276 IsEmpty]: Start isEmpty. Operand 10744 states and 27780 transitions. [2021-06-05 18:08:27,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-06-05 18:08:27,639 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:27,639 INFO L554 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:27,863 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:27,864 INFO L430 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:27,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:27,864 INFO L82 PathProgramCache]: Analyzing trace with hash 306371224, now seen corresponding path program 2 times [2021-06-05 18:08:27,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:27,865 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649960362] [2021-06-05 18:08:27,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:27,973 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 6 proven. 47 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-05 18:08:27,974 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:27,974 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649960362] [2021-06-05 18:08:27,974 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649960362] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:27,974 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14929073] [2021-06-05 18:08:27,974 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:28,104 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 18:08:28,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 18:08:28,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-05 18:08:28,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 18:08:28,367 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 6 proven. 47 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-05 18:08:28,367 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14929073] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:28,367 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 18:08:28,367 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2021-06-05 18:08:28,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415168958] [2021-06-05 18:08:28,368 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 18:08:28,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:28,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 18:08:28,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-06-05 18:08:28,369 INFO L87 Difference]: Start difference. First operand 10744 states and 27780 transitions. Second operand has 10 states, 10 states have (on average 20.6) internal successors, (206), 10 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:28,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:28,575 INFO L93 Difference]: Finished difference Result 15879 states and 41004 transitions. [2021-06-05 18:08:28,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-05 18:08:28,576 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 20.6) internal successors, (206), 10 states have internal predecessors, (206), 0 states have call successors, (0), 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 161 [2021-06-05 18:08:28,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:28,600 INFO L225 Difference]: With dead ends: 15879 [2021-06-05 18:08:28,600 INFO L226 Difference]: Without dead ends: 15879 [2021-06-05 18:08:28,600 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 97.2ms TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2021-06-05 18:08:28,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15879 states. [2021-06-05 18:08:28,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15879 to 12004. [2021-06-05 18:08:28,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12004 states, 12002 states have (on average 2.601983002832861) internal successors, (31229), 12003 states have internal predecessors, (31229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:28,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12004 states to 12004 states and 31229 transitions. [2021-06-05 18:08:28,850 INFO L78 Accepts]: Start accepts. Automaton has 12004 states and 31229 transitions. Word has length 161 [2021-06-05 18:08:28,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:28,850 INFO L482 AbstractCegarLoop]: Abstraction has 12004 states and 31229 transitions. [2021-06-05 18:08:28,850 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 20.6) internal successors, (206), 10 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:28,851 INFO L276 IsEmpty]: Start isEmpty. Operand 12004 states and 31229 transitions. [2021-06-05 18:08:28,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-06-05 18:08:28,871 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:28,871 INFO L554 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:29,073 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:29,073 INFO L430 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:29,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:29,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1386346929, now seen corresponding path program 4 times [2021-06-05 18:08:29,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:29,074 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121300917] [2021-06-05 18:08:29,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:29,233 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 12 proven. 264 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:08:29,233 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:29,233 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121300917] [2021-06-05 18:08:29,233 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121300917] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:29,233 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694539400] [2021-06-05 18:08:29,233 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:29,352 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-05 18:08:29,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 18:08:29,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-05 18:08:29,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 18:08:29,673 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 12 proven. 264 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:08:29,674 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694539400] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:29,674 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 18:08:29,674 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2021-06-05 18:08:29,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045349020] [2021-06-05 18:08:29,674 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-05 18:08:29,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:29,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-05 18:08:29,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-06-05 18:08:29,675 INFO L87 Difference]: Start difference. First operand 12004 states and 31229 transitions. Second operand has 13 states, 13 states have (on average 18.846153846153847) internal successors, (245), 13 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:29,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:29,908 INFO L93 Difference]: Finished difference Result 17203 states and 44584 transitions. [2021-06-05 18:08:29,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 18:08:29,908 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 18.846153846153847) internal successors, (245), 13 states have internal predecessors, (245), 0 states have call successors, (0), 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 194 [2021-06-05 18:08:29,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:29,932 INFO L225 Difference]: With dead ends: 17203 [2021-06-05 18:08:29,933 INFO L226 Difference]: Without dead ends: 17203 [2021-06-05 18:08:29,933 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 145.3ms TimeCoverageRelationStatistics Valid=176, Invalid=330, Unknown=0, NotChecked=0, Total=506 [2021-06-05 18:08:29,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17203 states. [2021-06-05 18:08:30,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17203 to 13806. [2021-06-05 18:08:30,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13806 states, 13804 states have (on average 2.5962764416111273) internal successors, (35839), 13805 states have internal predecessors, (35839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:30,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13806 states to 13806 states and 35839 transitions. [2021-06-05 18:08:30,208 INFO L78 Accepts]: Start accepts. Automaton has 13806 states and 35839 transitions. Word has length 194 [2021-06-05 18:08:30,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:30,208 INFO L482 AbstractCegarLoop]: Abstraction has 13806 states and 35839 transitions. [2021-06-05 18:08:30,209 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 18.846153846153847) internal successors, (245), 13 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:30,209 INFO L276 IsEmpty]: Start isEmpty. Operand 13806 states and 35839 transitions. [2021-06-05 18:08:30,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-06-05 18:08:30,234 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:30,234 INFO L554 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:30,456 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:30,457 INFO L430 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:30,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:30,457 INFO L82 PathProgramCache]: Analyzing trace with hash 2097030715, now seen corresponding path program 3 times [2021-06-05 18:08:30,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:30,457 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836289976] [2021-06-05 18:08:30,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:30,669 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 9 proven. 139 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-06-05 18:08:30,669 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:30,669 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836289976] [2021-06-05 18:08:30,669 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836289976] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:30,669 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498092691] [2021-06-05 18:08:30,669 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:30,832 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-05 18:08:30,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 18:08:30,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-05 18:08:30,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 18:08:31,113 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 9 proven. 115 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-06-05 18:08:31,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498092691] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:31,113 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 18:08:31,113 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 10 [2021-06-05 18:08:31,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589160663] [2021-06-05 18:08:31,114 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 18:08:31,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:31,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 18:08:31,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-06-05 18:08:31,115 INFO L87 Difference]: Start difference. First operand 13806 states and 35839 transitions. Second operand has 10 states, 10 states have (on average 22.4) internal successors, (224), 10 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:31,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:31,281 INFO L93 Difference]: Finished difference Result 17791 states and 46057 transitions. [2021-06-05 18:08:31,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-05 18:08:31,282 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 22.4) internal successors, (224), 10 states have internal predecessors, (224), 0 states have call successors, (0), 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 195 [2021-06-05 18:08:31,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:31,300 INFO L225 Difference]: With dead ends: 17791 [2021-06-05 18:08:31,300 INFO L226 Difference]: Without dead ends: 17791 [2021-06-05 18:08:31,301 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 87.2ms TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-06-05 18:08:31,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17791 states. [2021-06-05 18:08:31,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17791 to 13806. [2021-06-05 18:08:31,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13806 states, 13804 states have (on average 2.5962764416111273) internal successors, (35839), 13805 states have internal predecessors, (35839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:31,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13806 states to 13806 states and 35839 transitions. [2021-06-05 18:08:31,543 INFO L78 Accepts]: Start accepts. Automaton has 13806 states and 35839 transitions. Word has length 195 [2021-06-05 18:08:31,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:31,544 INFO L482 AbstractCegarLoop]: Abstraction has 13806 states and 35839 transitions. [2021-06-05 18:08:31,544 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 22.4) internal successors, (224), 10 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:31,544 INFO L276 IsEmpty]: Start isEmpty. Operand 13806 states and 35839 transitions. [2021-06-05 18:08:31,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-06-05 18:08:31,562 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:31,562 INFO L554 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:31,776 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-06-05 18:08:31,777 INFO L430 AbstractCegarLoop]: === Iteration 11 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:31,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:31,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1087945719, now seen corresponding path program 4 times [2021-06-05 18:08:31,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:31,777 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483499855] [2021-06-05 18:08:31,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:31,900 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 9 proven. 130 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-05 18:08:31,900 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:31,900 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483499855] [2021-06-05 18:08:31,900 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483499855] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:31,900 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921873252] [2021-06-05 18:08:31,900 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:32,013 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-05 18:08:32,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 18:08:32,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-05 18:08:32,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 18:08:32,310 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 9 proven. 130 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-05 18:08:32,311 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921873252] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:32,311 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 18:08:32,311 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 12 [2021-06-05 18:08:32,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583615679] [2021-06-05 18:08:32,312 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 18:08:32,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:32,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 18:08:32,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-06-05 18:08:32,313 INFO L87 Difference]: Start difference. First operand 13806 states and 35839 transitions. Second operand has 12 states, 12 states have (on average 20.0) internal successors, (240), 12 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:32,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:32,517 INFO L93 Difference]: Finished difference Result 19141 states and 49613 transitions. [2021-06-05 18:08:32,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 18:08:32,518 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 20.0) internal successors, (240), 12 states have internal predecessors, (240), 0 states have call successors, (0), 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 195 [2021-06-05 18:08:32,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:32,541 INFO L225 Difference]: With dead ends: 19141 [2021-06-05 18:08:32,541 INFO L226 Difference]: Without dead ends: 19141 [2021-06-05 18:08:32,541 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 122.3ms TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2021-06-05 18:08:32,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19141 states. [2021-06-05 18:08:32,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19141 to 13806. [2021-06-05 18:08:32,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13806 states, 13804 states have (on average 2.5962764416111273) internal successors, (35839), 13805 states have internal predecessors, (35839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:32,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13806 states to 13806 states and 35839 transitions. [2021-06-05 18:08:32,756 INFO L78 Accepts]: Start accepts. Automaton has 13806 states and 35839 transitions. Word has length 195 [2021-06-05 18:08:32,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:32,757 INFO L482 AbstractCegarLoop]: Abstraction has 13806 states and 35839 transitions. [2021-06-05 18:08:32,757 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 20.0) internal successors, (240), 12 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:32,757 INFO L276 IsEmpty]: Start isEmpty. Operand 13806 states and 35839 transitions. [2021-06-05 18:08:32,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-06-05 18:08:32,772 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:32,772 INFO L554 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:32,992 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-06-05 18:08:32,993 INFO L430 AbstractCegarLoop]: === Iteration 12 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:32,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:32,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1898958203, now seen corresponding path program 1 times [2021-06-05 18:08:32,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:32,993 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168081512] [2021-06-05 18:08:32,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:33,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:33,113 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 9 proven. 148 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-06-05 18:08:33,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:33,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168081512] [2021-06-05 18:08:33,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168081512] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:33,114 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910139104] [2021-06-05 18:08:33,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:33,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-05 18:08:33,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 18:08:33,553 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 9 proven. 123 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-06-05 18:08:33,554 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910139104] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:33,554 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 18:08:33,554 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 11 [2021-06-05 18:08:33,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658366822] [2021-06-05 18:08:33,555 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 18:08:33,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:33,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 18:08:33,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-06-05 18:08:33,555 INFO L87 Difference]: Start difference. First operand 13806 states and 35839 transitions. Second operand has 11 states, 11 states have (on average 21.454545454545453) internal successors, (236), 11 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:33,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:33,775 INFO L93 Difference]: Finished difference Result 25001 states and 64922 transitions. [2021-06-05 18:08:33,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-05 18:08:33,776 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 21.454545454545453) internal successors, (236), 11 states have internal predecessors, (236), 0 states have call successors, (0), 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 224 [2021-06-05 18:08:33,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:33,807 INFO L225 Difference]: With dead ends: 25001 [2021-06-05 18:08:33,807 INFO L226 Difference]: Without dead ends: 25001 [2021-06-05 18:08:33,807 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 115.0ms TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2021-06-05 18:08:33,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25001 states. [2021-06-05 18:08:34,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25001 to 14966. [2021-06-05 18:08:34,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14966 states, 14964 states have (on average 2.605787222667736) internal successors, (38993), 14965 states have internal predecessors, (38993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:34,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14966 states to 14966 states and 38993 transitions. [2021-06-05 18:08:34,141 INFO L78 Accepts]: Start accepts. Automaton has 14966 states and 38993 transitions. Word has length 224 [2021-06-05 18:08:34,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:34,141 INFO L482 AbstractCegarLoop]: Abstraction has 14966 states and 38993 transitions. [2021-06-05 18:08:34,142 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 21.454545454545453) internal successors, (236), 11 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:34,142 INFO L276 IsEmpty]: Start isEmpty. Operand 14966 states and 38993 transitions. [2021-06-05 18:08:34,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-06-05 18:08:34,165 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:34,166 INFO L554 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:34,380 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:34,381 INFO L430 AbstractCegarLoop]: === Iteration 13 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:34,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:34,381 INFO L82 PathProgramCache]: Analyzing trace with hash -648743374, now seen corresponding path program 5 times [2021-06-05 18:08:34,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:34,381 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996070649] [2021-06-05 18:08:34,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:34,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:34,530 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 297 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:08:34,530 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:34,530 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996070649] [2021-06-05 18:08:34,531 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996070649] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:34,531 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843702161] [2021-06-05 18:08:34,531 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:34,710 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-05 18:08:34,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 18:08:34,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-05 18:08:34,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 18:08:35,056 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 430 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:08:35,056 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843702161] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 18:08:35,056 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 18:08:35,056 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 15 [2021-06-05 18:08:35,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161025510] [2021-06-05 18:08:35,057 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-05 18:08:35,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:35,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-05 18:08:35,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2021-06-05 18:08:35,058 INFO L87 Difference]: Start difference. First operand 14966 states and 38993 transitions. Second operand has 13 states, 13 states have (on average 17.53846153846154) internal successors, (228), 13 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:35,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:35,356 INFO L93 Difference]: Finished difference Result 39019 states and 101754 transitions. [2021-06-05 18:08:35,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 18:08:35,356 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 17.53846153846154) internal successors, (228), 13 states have internal predecessors, (228), 0 states have call successors, (0), 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 228 [2021-06-05 18:08:35,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:35,369 INFO L225 Difference]: With dead ends: 39019 [2021-06-05 18:08:35,369 INFO L226 Difference]: Without dead ends: 11420 [2021-06-05 18:08:35,370 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 169.8ms TimeCoverageRelationStatistics Valid=184, Invalid=416, Unknown=0, NotChecked=0, Total=600 [2021-06-05 18:08:35,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11420 states. [2021-06-05 18:08:35,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11420 to 11420. [2021-06-05 18:08:35,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11420 states, 11418 states have (on average 2.546242774566474) internal successors, (29073), 11419 states have internal predecessors, (29073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:35,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11420 states to 11420 states and 29073 transitions. [2021-06-05 18:08:35,542 INFO L78 Accepts]: Start accepts. Automaton has 11420 states and 29073 transitions. Word has length 228 [2021-06-05 18:08:35,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:35,542 INFO L482 AbstractCegarLoop]: Abstraction has 11420 states and 29073 transitions. [2021-06-05 18:08:35,543 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.53846153846154) internal successors, (228), 13 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:35,543 INFO L276 IsEmpty]: Start isEmpty. Operand 11420 states and 29073 transitions. [2021-06-05 18:08:35,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-06-05 18:08:35,556 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:35,556 INFO L554 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:35,772 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:35,773 INFO L430 AbstractCegarLoop]: === Iteration 14 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:35,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:35,773 INFO L82 PathProgramCache]: Analyzing trace with hash 511541308, now seen corresponding path program 5 times [2021-06-05 18:08:35,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:35,773 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068699359] [2021-06-05 18:08:35,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:35,902 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 12 proven. 256 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-06-05 18:08:35,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:35,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068699359] [2021-06-05 18:08:35,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068699359] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:35,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190095789] [2021-06-05 18:08:35,903 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:36,140 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-05 18:08:36,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 18:08:36,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-05 18:08:36,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 18:08:36,451 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 12 proven. 232 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-06-05 18:08:36,452 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190095789] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:36,452 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 18:08:36,452 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 12 [2021-06-05 18:08:36,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644538721] [2021-06-05 18:08:36,452 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 18:08:36,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:36,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 18:08:36,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-06-05 18:08:36,453 INFO L87 Difference]: Start difference. First operand 11420 states and 29073 transitions. Second operand has 12 states, 12 states have (on average 21.5) internal successors, (258), 12 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:36,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:36,657 INFO L93 Difference]: Finished difference Result 14630 states and 37308 transitions. [2021-06-05 18:08:36,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 18:08:36,657 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 21.5) internal successors, (258), 12 states have internal predecessors, (258), 0 states have call successors, (0), 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 229 [2021-06-05 18:08:36,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:36,676 INFO L225 Difference]: With dead ends: 14630 [2021-06-05 18:08:36,677 INFO L226 Difference]: Without dead ends: 12570 [2021-06-05 18:08:36,677 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 121.6ms TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-06-05 18:08:36,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12570 states. [2021-06-05 18:08:36,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12570 to 11010. [2021-06-05 18:08:36,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11010 states, 11008 states have (on average 2.543786337209302) internal successors, (28002), 11009 states have internal predecessors, (28002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:36,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11010 states to 11010 states and 28002 transitions. [2021-06-05 18:08:36,881 INFO L78 Accepts]: Start accepts. Automaton has 11010 states and 28002 transitions. Word has length 229 [2021-06-05 18:08:36,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:36,881 INFO L482 AbstractCegarLoop]: Abstraction has 11010 states and 28002 transitions. [2021-06-05 18:08:36,881 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 21.5) internal successors, (258), 12 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:36,881 INFO L276 IsEmpty]: Start isEmpty. Operand 11010 states and 28002 transitions. [2021-06-05 18:08:36,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-06-05 18:08:36,893 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:36,893 INFO L554 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:37,093 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-06-05 18:08:37,094 INFO L430 AbstractCegarLoop]: === Iteration 15 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:37,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:37,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1900736474, now seen corresponding path program 6 times [2021-06-05 18:08:37,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:37,094 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390232582] [2021-06-05 18:08:37,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:37,221 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 12 proven. 230 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-06-05 18:08:37,221 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:37,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390232582] [2021-06-05 18:08:37,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390232582] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:37,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482913108] [2021-06-05 18:08:37,221 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:37,383 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-06-05 18:08:37,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 18:08:37,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-05 18:08:37,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 18:08:37,713 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 12 proven. 230 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-06-05 18:08:37,713 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482913108] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:37,713 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 18:08:37,713 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 12 [2021-06-05 18:08:37,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615359335] [2021-06-05 18:08:37,714 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 18:08:37,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:37,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 18:08:37,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-06-05 18:08:37,715 INFO L87 Difference]: Start difference. First operand 11010 states and 28002 transitions. Second operand has 12 states, 12 states have (on average 21.333333333333332) internal successors, (256), 12 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:37,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:37,880 INFO L93 Difference]: Finished difference Result 11840 states and 30117 transitions. [2021-06-05 18:08:37,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-05 18:08:37,881 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 21.333333333333332) internal successors, (256), 12 states have internal predecessors, (256), 0 states have call successors, (0), 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 229 [2021-06-05 18:08:37,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:37,891 INFO L225 Difference]: With dead ends: 11840 [2021-06-05 18:08:37,891 INFO L226 Difference]: Without dead ends: 10290 [2021-06-05 18:08:37,892 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 112.4ms TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2021-06-05 18:08:37,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10290 states. [2021-06-05 18:08:37,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10290 to 8630. [2021-06-05 18:08:37,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8630 states, 8628 states have (on average 2.536161335187761) internal successors, (21882), 8629 states have internal predecessors, (21882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:38,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8630 states to 8630 states and 21882 transitions. [2021-06-05 18:08:38,012 INFO L78 Accepts]: Start accepts. Automaton has 8630 states and 21882 transitions. Word has length 229 [2021-06-05 18:08:38,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:38,013 INFO L482 AbstractCegarLoop]: Abstraction has 8630 states and 21882 transitions. [2021-06-05 18:08:38,013 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 21.333333333333332) internal successors, (256), 12 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:38,013 INFO L276 IsEmpty]: Start isEmpty. Operand 8630 states and 21882 transitions. [2021-06-05 18:08:38,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-06-05 18:08:38,021 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:38,021 INFO L554 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:38,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-05 18:08:38,226 INFO L430 AbstractCegarLoop]: === Iteration 16 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:38,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:38,227 INFO L82 PathProgramCache]: Analyzing trace with hash 891651478, now seen corresponding path program 7 times [2021-06-05 18:08:38,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:38,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50552787] [2021-06-05 18:08:38,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:38,371 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 12 proven. 247 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-05 18:08:38,371 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:38,371 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50552787] [2021-06-05 18:08:38,371 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50552787] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:38,372 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894028095] [2021-06-05 18:08:38,372 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:38,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-05 18:08:38,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 18:08:38,817 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 12 proven. 247 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-05 18:08:38,817 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894028095] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:38,817 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 18:08:38,818 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 14 [2021-06-05 18:08:38,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95169748] [2021-06-05 18:08:38,818 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-05 18:08:38,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:38,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-05 18:08:38,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-06-05 18:08:38,819 INFO L87 Difference]: Start difference. First operand 8630 states and 21882 transitions. Second operand has 14 states, 14 states have (on average 19.571428571428573) internal successors, (274), 14 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:39,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:39,032 INFO L93 Difference]: Finished difference Result 12520 states and 31800 transitions. [2021-06-05 18:08:39,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-05 18:08:39,032 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 19.571428571428573) internal successors, (274), 14 states have internal predecessors, (274), 0 states have call successors, (0), 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 229 [2021-06-05 18:08:39,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:39,040 INFO L225 Difference]: With dead ends: 12520 [2021-06-05 18:08:39,040 INFO L226 Difference]: Without dead ends: 8626 [2021-06-05 18:08:39,041 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 169.7ms TimeCoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2021-06-05 18:08:39,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8626 states. [2021-06-05 18:08:39,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8626 to 7406. [2021-06-05 18:08:39,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7406 states, 7404 states have (on average 2.539438141545111) internal successors, (18802), 7405 states have internal predecessors, (18802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:39,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7406 states to 7406 states and 18802 transitions. [2021-06-05 18:08:39,138 INFO L78 Accepts]: Start accepts. Automaton has 7406 states and 18802 transitions. Word has length 229 [2021-06-05 18:08:39,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:39,138 INFO L482 AbstractCegarLoop]: Abstraction has 7406 states and 18802 transitions. [2021-06-05 18:08:39,138 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 19.571428571428573) internal successors, (274), 14 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:39,138 INFO L276 IsEmpty]: Start isEmpty. Operand 7406 states and 18802 transitions. [2021-06-05 18:08:39,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-06-05 18:08:39,145 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:39,145 INFO L554 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:39,346 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-06-05 18:08:39,346 INFO L430 AbstractCegarLoop]: === Iteration 17 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:39,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:39,346 INFO L82 PathProgramCache]: Analyzing trace with hash 972675236, now seen corresponding path program 2 times [2021-06-05 18:08:39,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:39,347 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622503401] [2021-06-05 18:08:39,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:39,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:39,512 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 12 proven. 265 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-06-05 18:08:39,512 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:39,512 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622503401] [2021-06-05 18:08:39,512 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622503401] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:39,512 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600902558] [2021-06-05 18:08:39,512 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:39,667 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 18:08:39,667 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 18:08:39,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-05 18:08:39,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 18:08:39,996 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 12 proven. 240 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-06-05 18:08:39,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [600902558] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:39,996 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 18:08:39,996 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 13 [2021-06-05 18:08:39,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266838428] [2021-06-05 18:08:39,997 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-05 18:08:39,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:39,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-05 18:08:39,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-06-05 18:08:39,998 INFO L87 Difference]: Start difference. First operand 7406 states and 18802 transitions. Second operand has 13 states, 13 states have (on average 20.76923076923077) internal successors, (270), 13 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:40,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:40,204 INFO L93 Difference]: Finished difference Result 10176 states and 25864 transitions. [2021-06-05 18:08:40,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-05 18:08:40,204 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 20.76923076923077) internal successors, (270), 13 states have internal predecessors, (270), 0 states have call successors, (0), 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 258 [2021-06-05 18:08:40,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:40,212 INFO L225 Difference]: With dead ends: 10176 [2021-06-05 18:08:40,212 INFO L226 Difference]: Without dead ends: 6246 [2021-06-05 18:08:40,213 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 159.2ms TimeCoverageRelationStatistics Valid=156, Invalid=444, Unknown=0, NotChecked=0, Total=600 [2021-06-05 18:08:40,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6246 states. [2021-06-05 18:08:40,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6246 to 6246. [2021-06-05 18:08:40,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6246 states, 6244 states have (on average 2.5342729019859065) internal successors, (15824), 6245 states have internal predecessors, (15824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:40,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6246 states to 6246 states and 15824 transitions. [2021-06-05 18:08:40,288 INFO L78 Accepts]: Start accepts. Automaton has 6246 states and 15824 transitions. Word has length 258 [2021-06-05 18:08:40,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:40,289 INFO L482 AbstractCegarLoop]: Abstraction has 6246 states and 15824 transitions. [2021-06-05 18:08:40,289 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 20.76923076923077) internal successors, (270), 13 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:40,289 INFO L276 IsEmpty]: Start isEmpty. Operand 6246 states and 15824 transitions. [2021-06-05 18:08:40,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-06-05 18:08:40,296 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:40,297 INFO L554 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:40,512 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:40,513 INFO L430 AbstractCegarLoop]: === Iteration 18 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:40,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:40,513 INFO L82 PathProgramCache]: Analyzing trace with hash 201498950, now seen corresponding path program 3 times [2021-06-05 18:08:40,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:40,513 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004021902] [2021-06-05 18:08:40,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:40,653 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 12 proven. 239 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-06-05 18:08:40,653 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:40,654 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004021902] [2021-06-05 18:08:40,654 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004021902] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:40,654 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051184290] [2021-06-05 18:08:40,654 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:40,777 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-05 18:08:40,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 18:08:40,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-05 18:08:40,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 18:08:41,136 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-06-05 18:08:41,137 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051184290] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 18:08:41,137 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 18:08:41,137 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2021-06-05 18:08:41,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737462599] [2021-06-05 18:08:41,137 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 18:08:41,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:41,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 18:08:41,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2021-06-05 18:08:41,138 INFO L87 Difference]: Start difference. First operand 6246 states and 15824 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:41,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:41,244 INFO L93 Difference]: Finished difference Result 7556 states and 19163 transitions. [2021-06-05 18:08:41,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 18:08:41,244 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 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 258 [2021-06-05 18:08:41,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:41,252 INFO L225 Difference]: With dead ends: 7556 [2021-06-05 18:08:41,252 INFO L226 Difference]: Without dead ends: 7026 [2021-06-05 18:08:41,253 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 135.2ms TimeCoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2021-06-05 18:08:41,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7026 states. [2021-06-05 18:08:41,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7026 to 6826. [2021-06-05 18:08:41,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6826 states, 6824 states have (on average 2.535609613130129) internal successors, (17303), 6825 states have internal predecessors, (17303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:41,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6826 states to 6826 states and 17303 transitions. [2021-06-05 18:08:41,333 INFO L78 Accepts]: Start accepts. Automaton has 6826 states and 17303 transitions. Word has length 258 [2021-06-05 18:08:41,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:41,333 INFO L482 AbstractCegarLoop]: Abstraction has 6826 states and 17303 transitions. [2021-06-05 18:08:41,333 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:41,333 INFO L276 IsEmpty]: Start isEmpty. Operand 6826 states and 17303 transitions. [2021-06-05 18:08:41,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-06-05 18:08:41,340 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:41,340 INFO L554 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:41,540 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-06-05 18:08:41,541 INFO L430 AbstractCegarLoop]: === Iteration 19 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:41,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:41,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1973337450, now seen corresponding path program 4 times [2021-06-05 18:08:41,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:41,541 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120441696] [2021-06-05 18:08:41,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:41,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:41,696 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 54 proven. 210 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-06-05 18:08:41,697 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:41,697 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120441696] [2021-06-05 18:08:41,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120441696] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:41,697 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415121917] [2021-06-05 18:08:41,697 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:41,834 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-05 18:08:41,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 18:08:41,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 16 conjunts are in the unsatisfiable core [2021-06-05 18:08:41,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 18:08:42,248 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 54 proven. 210 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-06-05 18:08:42,249 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415121917] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:42,249 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 18:08:42,249 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2021-06-05 18:08:42,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459117384] [2021-06-05 18:08:42,249 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-05 18:08:42,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:42,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-05 18:08:42,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-06-05 18:08:42,250 INFO L87 Difference]: Start difference. First operand 6826 states and 17303 transitions. Second operand has 13 states, 13 states have (on average 21.0) internal successors, (273), 13 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:42,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:42,404 INFO L93 Difference]: Finished difference Result 6746 states and 17093 transitions. [2021-06-05 18:08:42,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-05 18:08:42,404 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 21.0) internal successors, (273), 13 states have internal predecessors, (273), 0 states have call successors, (0), 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 287 [2021-06-05 18:08:42,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:42,405 INFO L225 Difference]: With dead ends: 6746 [2021-06-05 18:08:42,405 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 18:08:42,405 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 114.2ms TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2021-06-05 18:08:42,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 18:08:42,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 18:08:42,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:42,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 18:08:42,405 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 287 [2021-06-05 18:08:42,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:42,405 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 18:08:42,405 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 21.0) internal successors, (273), 13 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:42,405 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 18:08:42,406 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 18:08:42,606 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:42,607 INFO L301 ceAbstractionStarter]: Result for error location t1Thread1of1ForFork0 was SAFE (1/5) [2021-06-05 18:08:42,608 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 18:08:42,608 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 18:08:42,608 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 18:08:42,608 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 18:08:42,608 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 18:08:42,608 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 18:08:42,608 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 18:08:42,609 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 18:08:42,609 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 18:08:42,610 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 149 places, 154 transitions, 330 flow [2021-06-05 18:08:42,841 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8468 states, 8464 states have (on average 2.8676748582230625) internal successors, (24272), 8467 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:42,853 INFO L276 IsEmpty]: Start isEmpty. Operand has 8468 states, 8464 states have (on average 2.8676748582230625) internal successors, (24272), 8467 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:42,879 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 18:08:42,879 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (2/5) [2021-06-05 18:08:42,879 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 18:08:42,880 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 18:08:42,880 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 18:08:42,880 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 18:08:42,880 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 18:08:42,880 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 18:08:42,880 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 18:08:42,880 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 18:08:42,880 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == t2Thread1of1ForFork1======== [2021-06-05 18:08:42,884 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 149 places, 154 transitions, 330 flow [2021-06-05 18:08:43,072 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8468 states, 8464 states have (on average 2.8676748582230625) internal successors, (24272), 8467 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:43,079 INFO L276 IsEmpty]: Start isEmpty. Operand has 8468 states, 8464 states have (on average 2.8676748582230625) internal successors, (24272), 8467 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:43,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-05 18:08:43,083 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:43,083 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:43,083 INFO L430 AbstractCegarLoop]: === Iteration 1 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:43,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:43,084 INFO L82 PathProgramCache]: Analyzing trace with hash -222896259, now seen corresponding path program 1 times [2021-06-05 18:08:43,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:43,084 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017081872] [2021-06-05 18:08:43,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:43,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:43,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:08:43,106 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:43,106 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017081872] [2021-06-05 18:08:43,106 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017081872] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 18:08:43,106 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 18:08:43,106 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 18:08:43,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651064938] [2021-06-05 18:08:43,107 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 18:08:43,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:43,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 18:08:43,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 18:08:43,117 INFO L87 Difference]: Start difference. First operand has 8468 states, 8464 states have (on average 2.8676748582230625) internal successors, (24272), 8467 states have internal predecessors, (24272), 0 states have call successors, (0), 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 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:43,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:43,167 INFO L93 Difference]: Finished difference Result 11839 states and 32309 transitions. [2021-06-05 18:08:43,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 18:08:43,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2021-06-05 18:08:43,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:43,179 INFO L225 Difference]: With dead ends: 11839 [2021-06-05 18:08:43,179 INFO L226 Difference]: Without dead ends: 10093 [2021-06-05 18:08:43,179 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 18:08:43,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10093 states. [2021-06-05 18:08:43,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10093 to 9892. [2021-06-05 18:08:43,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9892 states, 9889 states have (on average 2.7615532409748207) internal successors, (27309), 9891 states have internal predecessors, (27309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:43,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9892 states to 9892 states and 27309 transitions. [2021-06-05 18:08:43,311 INFO L78 Accepts]: Start accepts. Automaton has 9892 states and 27309 transitions. Word has length 57 [2021-06-05 18:08:43,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:43,312 INFO L482 AbstractCegarLoop]: Abstraction has 9892 states and 27309 transitions. [2021-06-05 18:08:43,312 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:43,312 INFO L276 IsEmpty]: Start isEmpty. Operand 9892 states and 27309 transitions. [2021-06-05 18:08:43,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-06-05 18:08:43,315 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:43,315 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:43,315 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-05 18:08:43,315 INFO L430 AbstractCegarLoop]: === Iteration 2 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:43,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:43,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1707207375, now seen corresponding path program 1 times [2021-06-05 18:08:43,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:43,316 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426397890] [2021-06-05 18:08:43,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:43,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:08:43,336 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:43,336 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426397890] [2021-06-05 18:08:43,336 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426397890] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 18:08:43,336 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 18:08:43,336 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 18:08:43,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791092865] [2021-06-05 18:08:43,337 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 18:08:43,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:43,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 18:08:43,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 18:08:43,338 INFO L87 Difference]: Start difference. First operand 9892 states and 27309 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:43,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:43,361 INFO L93 Difference]: Finished difference Result 4122 states and 10606 transitions. [2021-06-05 18:08:43,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 18:08:43,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2021-06-05 18:08:43,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:43,366 INFO L225 Difference]: With dead ends: 4122 [2021-06-05 18:08:43,366 INFO L226 Difference]: Without dead ends: 3970 [2021-06-05 18:08:43,366 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 18:08:43,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3970 states. [2021-06-05 18:08:43,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3970 to 3568. [2021-06-05 18:08:43,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3568 states, 3566 states have (on average 2.583567021873247) internal successors, (9213), 3567 states have internal predecessors, (9213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:43,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3568 states to 3568 states and 9213 transitions. [2021-06-05 18:08:43,419 INFO L78 Accepts]: Start accepts. Automaton has 3568 states and 9213 transitions. Word has length 85 [2021-06-05 18:08:43,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:43,420 INFO L482 AbstractCegarLoop]: Abstraction has 3568 states and 9213 transitions. [2021-06-05 18:08:43,420 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:43,420 INFO L276 IsEmpty]: Start isEmpty. Operand 3568 states and 9213 transitions. [2021-06-05 18:08:43,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-06-05 18:08:43,426 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:43,426 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:43,426 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-05 18:08:43,426 INFO L430 AbstractCegarLoop]: === Iteration 3 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:43,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:43,427 INFO L82 PathProgramCache]: Analyzing trace with hash -315494749, now seen corresponding path program 1 times [2021-06-05 18:08:43,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:43,427 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988357364] [2021-06-05 18:08:43,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:43,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:08:43,452 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:43,452 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988357364] [2021-06-05 18:08:43,452 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988357364] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 18:08:43,452 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 18:08:43,452 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 18:08:43,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990900021] [2021-06-05 18:08:43,453 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 18:08:43,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:43,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 18:08:43,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 18:08:43,454 INFO L87 Difference]: Start difference. First operand 3568 states and 9213 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:43,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:43,484 INFO L93 Difference]: Finished difference Result 4701 states and 12051 transitions. [2021-06-05 18:08:43,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 18:08:43,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2021-06-05 18:08:43,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:43,491 INFO L225 Difference]: With dead ends: 4701 [2021-06-05 18:08:43,492 INFO L226 Difference]: Without dead ends: 4701 [2021-06-05 18:08:43,492 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 18:08:43,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4701 states. [2021-06-05 18:08:43,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4701 to 3865. [2021-06-05 18:08:43,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3865 states, 3863 states have (on average 2.5630339114677714) internal successors, (9901), 3864 states have internal predecessors, (9901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:43,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3865 states to 3865 states and 9901 transitions. [2021-06-05 18:08:43,549 INFO L78 Accepts]: Start accepts. Automaton has 3865 states and 9901 transitions. Word has length 92 [2021-06-05 18:08:43,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:43,549 INFO L482 AbstractCegarLoop]: Abstraction has 3865 states and 9901 transitions. [2021-06-05 18:08:43,549 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:43,549 INFO L276 IsEmpty]: Start isEmpty. Operand 3865 states and 9901 transitions. [2021-06-05 18:08:43,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 18:08:43,553 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:43,553 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:43,553 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-05 18:08:43,554 INFO L430 AbstractCegarLoop]: === Iteration 4 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:43,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:43,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1879841945, now seen corresponding path program 1 times [2021-06-05 18:08:43,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:43,554 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412412509] [2021-06-05 18:08:43,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:44,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:08:44,254 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:44,254 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412412509] [2021-06-05 18:08:44,254 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412412509] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 18:08:44,254 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 18:08:44,254 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-06-05 18:08:44,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388095566] [2021-06-05 18:08:44,255 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-06-05 18:08:44,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:44,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-06-05 18:08:44,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-06-05 18:08:44,255 INFO L87 Difference]: Start difference. First operand 3865 states and 9901 transitions. Second operand has 24 states, 24 states have (on average 4.25) internal successors, (102), 24 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:47,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:47,121 INFO L93 Difference]: Finished difference Result 9259 states and 23813 transitions. [2021-06-05 18:08:47,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-05 18:08:47,121 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.25) internal successors, (102), 24 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2021-06-05 18:08:47,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:47,130 INFO L225 Difference]: With dead ends: 9259 [2021-06-05 18:08:47,130 INFO L226 Difference]: Without dead ends: 8521 [2021-06-05 18:08:47,131 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 2186.4ms TimeCoverageRelationStatistics Valid=576, Invalid=2964, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 18:08:47,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8521 states. [2021-06-05 18:08:47,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8521 to 5713. [2021-06-05 18:08:47,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5713 states, 5711 states have (on average 2.561197688670986) internal successors, (14627), 5712 states have internal predecessors, (14627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:47,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5713 states to 5713 states and 14627 transitions. [2021-06-05 18:08:47,199 INFO L78 Accepts]: Start accepts. Automaton has 5713 states and 14627 transitions. Word has length 102 [2021-06-05 18:08:47,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:47,199 INFO L482 AbstractCegarLoop]: Abstraction has 5713 states and 14627 transitions. [2021-06-05 18:08:47,199 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.25) internal successors, (102), 24 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:47,199 INFO L276 IsEmpty]: Start isEmpty. Operand 5713 states and 14627 transitions. [2021-06-05 18:08:47,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 18:08:47,205 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:47,205 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:47,206 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-05 18:08:47,206 INFO L430 AbstractCegarLoop]: === Iteration 5 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:47,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:47,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1475354589, now seen corresponding path program 2 times [2021-06-05 18:08:47,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:47,206 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564456686] [2021-06-05 18:08:47,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:47,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:08:47,952 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:47,952 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564456686] [2021-06-05 18:08:47,953 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564456686] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 18:08:47,953 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 18:08:47,953 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 18:08:47,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617596239] [2021-06-05 18:08:47,953 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 18:08:47,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:47,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 18:08:47,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2021-06-05 18:08:47,954 INFO L87 Difference]: Start difference. First operand 5713 states and 14627 transitions. Second operand has 28 states, 28 states have (on average 3.642857142857143) internal successors, (102), 28 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:50,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:50,153 INFO L93 Difference]: Finished difference Result 12089 states and 31086 transitions. [2021-06-05 18:08:50,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 18:08:50,153 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.642857142857143) internal successors, (102), 28 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2021-06-05 18:08:50,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:50,165 INFO L225 Difference]: With dead ends: 12089 [2021-06-05 18:08:50,165 INFO L226 Difference]: Without dead ends: 11546 [2021-06-05 18:08:50,166 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 571 ImplicationChecksByTransitivity, 1813.0ms TimeCoverageRelationStatistics Valid=398, Invalid=2464, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 18:08:50,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11546 states. [2021-06-05 18:08:50,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11546 to 6669. [2021-06-05 18:08:50,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6669 states, 6667 states have (on average 2.5642717864106794) internal successors, (17096), 6668 states have internal predecessors, (17096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:50,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6669 states to 6669 states and 17096 transitions. [2021-06-05 18:08:50,311 INFO L78 Accepts]: Start accepts. Automaton has 6669 states and 17096 transitions. Word has length 102 [2021-06-05 18:08:50,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:50,312 INFO L482 AbstractCegarLoop]: Abstraction has 6669 states and 17096 transitions. [2021-06-05 18:08:50,312 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 3.642857142857143) internal successors, (102), 28 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:50,312 INFO L276 IsEmpty]: Start isEmpty. Operand 6669 states and 17096 transitions. [2021-06-05 18:08:50,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 18:08:50,317 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:50,317 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:50,317 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-05 18:08:50,317 INFO L430 AbstractCegarLoop]: === Iteration 6 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:50,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:50,318 INFO L82 PathProgramCache]: Analyzing trace with hash 61773313, now seen corresponding path program 3 times [2021-06-05 18:08:50,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:50,318 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887035751] [2021-06-05 18:08:50,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:51,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:08:51,004 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:51,004 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887035751] [2021-06-05 18:08:51,004 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887035751] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 18:08:51,004 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 18:08:51,004 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 18:08:51,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100733325] [2021-06-05 18:08:51,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 18:08:51,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:51,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 18:08:51,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2021-06-05 18:08:51,006 INFO L87 Difference]: Start difference. First operand 6669 states and 17096 transitions. Second operand has 28 states, 28 states have (on average 3.642857142857143) internal successors, (102), 28 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:54,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:08:54,591 INFO L93 Difference]: Finished difference Result 12531 states and 32234 transitions. [2021-06-05 18:08:54,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-05 18:08:54,592 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.642857142857143) internal successors, (102), 28 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2021-06-05 18:08:54,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:08:54,604 INFO L225 Difference]: With dead ends: 12531 [2021-06-05 18:08:54,604 INFO L226 Difference]: Without dead ends: 11823 [2021-06-05 18:08:54,605 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 884 ImplicationChecksByTransitivity, 2818.8ms TimeCoverageRelationStatistics Valid=620, Invalid=3670, Unknown=0, NotChecked=0, Total=4290 [2021-06-05 18:08:54,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11823 states. [2021-06-05 18:08:54,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11823 to 5713. [2021-06-05 18:08:54,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5713 states, 5711 states have (on average 2.5603221852565223) internal successors, (14622), 5712 states have internal predecessors, (14622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:54,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5713 states to 5713 states and 14622 transitions. [2021-06-05 18:08:54,704 INFO L78 Accepts]: Start accepts. Automaton has 5713 states and 14622 transitions. Word has length 102 [2021-06-05 18:08:54,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:08:54,705 INFO L482 AbstractCegarLoop]: Abstraction has 5713 states and 14622 transitions. [2021-06-05 18:08:54,705 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 3.642857142857143) internal successors, (102), 28 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:54,705 INFO L276 IsEmpty]: Start isEmpty. Operand 5713 states and 14622 transitions. [2021-06-05 18:08:54,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-06-05 18:08:54,710 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:08:54,711 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:08:54,711 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-05 18:08:54,711 INFO L430 AbstractCegarLoop]: === Iteration 7 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:08:54,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:08:54,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1884830054, now seen corresponding path program 1 times [2021-06-05 18:08:54,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:08:54,711 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868822508] [2021-06-05 18:08:54,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:08:54,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:55,298 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:08:55,298 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:08:55,298 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868822508] [2021-06-05 18:08:55,298 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868822508] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:55,298 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233682591] [2021-06-05 18:08:55,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:08:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:08:55,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 58 conjunts are in the unsatisfiable core [2021-06-05 18:08:55,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 18:08:55,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-06-05 18:08:55,858 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 18:08:55,875 INFO L628 ElimStorePlain]: treesize reduction 5, result has 83.3 percent of original size [2021-06-05 18:08:55,878 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-05 18:08:55,878 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:34, output treesize:28 [2021-06-05 18:08:56,183 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 18:08:56,185 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 18:08:56,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 13 [2021-06-05 18:08:56,188 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 18:08:56,194 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 18:08:56,197 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-05 18:08:56,197 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:7 [2021-06-05 18:08:56,382 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:08:56,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233682591] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:08:56,382 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 18:08:56,382 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 36 [2021-06-05 18:08:56,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314849369] [2021-06-05 18:08:56,382 INFO L462 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-06-05 18:08:56,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 18:08:56,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-06-05 18:08:56,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=1167, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 18:08:56,384 INFO L87 Difference]: Start difference. First operand 5713 states and 14622 transitions. Second operand has 36 states, 36 states have (on average 4.444444444444445) internal successors, (160), 36 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:08:59,902 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2021-06-05 18:09:00,063 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2021-06-05 18:09:00,260 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-06-05 18:09:00,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 18:09:00,604 INFO L93 Difference]: Finished difference Result 12591 states and 32345 transitions. [2021-06-05 18:09:00,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 18:09:00,605 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 4.444444444444445) internal successors, (160), 36 states have internal predecessors, (160), 0 states have call successors, (0), 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 136 [2021-06-05 18:09:00,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 18:09:00,616 INFO L225 Difference]: With dead ends: 12591 [2021-06-05 18:09:00,616 INFO L226 Difference]: Without dead ends: 12591 [2021-06-05 18:09:00,617 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 122 SyntacticMatches, 5 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1202 ImplicationChecksByTransitivity, 3265.4ms TimeCoverageRelationStatistics Valid=692, Invalid=4710, Unknown=0, NotChecked=0, Total=5402 [2021-06-05 18:09:00,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12591 states. [2021-06-05 18:09:00,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12591 to 8812. [2021-06-05 18:09:00,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8812 states, 8810 states have (on average 2.565493757094211) internal successors, (22602), 8811 states have internal predecessors, (22602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:09:00,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8812 states to 8812 states and 22602 transitions. [2021-06-05 18:09:00,729 INFO L78 Accepts]: Start accepts. Automaton has 8812 states and 22602 transitions. Word has length 136 [2021-06-05 18:09:00,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 18:09:00,729 INFO L482 AbstractCegarLoop]: Abstraction has 8812 states and 22602 transitions. [2021-06-05 18:09:00,729 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 4.444444444444445) internal successors, (160), 36 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 18:09:00,729 INFO L276 IsEmpty]: Start isEmpty. Operand 8812 states and 22602 transitions. [2021-06-05 18:09:00,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-06-05 18:09:00,739 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 18:09:00,739 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 18:09:00,948 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-06-05 18:09:00,949 INFO L430 AbstractCegarLoop]: === Iteration 8 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 18:09:00,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 18:09:00,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1485268962, now seen corresponding path program 2 times [2021-06-05 18:09:00,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 18:09:00,949 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328131288] [2021-06-05 18:09:00,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 18:09:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 18:09:01,861 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 18:09:01,861 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 18:09:01,861 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328131288] [2021-06-05 18:09:01,861 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328131288] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 18:09:01,861 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796084855] [2021-06-05 18:09:01,861 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 18:09:01,963 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-06-05 18:09:01,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 18:09:01,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 60 conjunts are in the unsatisfiable core [2021-06-05 18:09:01,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 18:09:01,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-06-05 18:09:01,987 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 18:09:01,989 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 18:09:01,989 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 18:09:01,989 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-06-05 18:09:02,043 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-06-05 18:09:02,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-06-05 18:09:02,045 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 18:09:02,049 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 18:09:02,051 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-05 18:09:02,051 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2021-06-05 18:09:02,182 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-06-05 18:09:02,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-06-05 18:09:02,184 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 18:09:02,191 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 18:09:02,195 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-06-05 18:09:02,195 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:28 [2021-06-05 18:09:02,287 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-06-05 18:09:02,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2021-06-05 18:09:02,290 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 18:09:02,299 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 18:09:02,301 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 18:09:02,301 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:33, output treesize:4 Received shutdown request... [2021-06-05 18:22:34,427 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-06-05 18:22:34,427 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 18:22:34,427 INFO L301 ceAbstractionStarter]: Result for error location t2Thread1of1ForFork1 was TIMEOUT (3/5) [2021-06-05 18:22:34,428 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 18:22:34,428 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 18:22:34,428 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 18:22:34,428 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 18:22:34,429 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 18:22:34,429 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 18:22:34,429 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 18:22:34,429 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 18:22:34,429 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == t1======== [2021-06-05 18:22:34,430 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 149 places, 154 transitions, 330 flow [2021-06-05 18:22:34,431 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 18:22:34,431 INFO L301 ceAbstractionStarter]: Result for error location t1 was TIMEOUT (4/5) [2021-06-05 18:22:34,432 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 18:22:34,432 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 18:22:34,432 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 18:22:34,432 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 18:22:34,432 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 18:22:34,432 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 18:22:34,432 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 18:22:34,433 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 18:22:34,433 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == t2======== [2021-06-05 18:22:34,434 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 149 places, 154 transitions, 330 flow [2021-06-05 18:22:34,434 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 18:22:34,434 INFO L301 ceAbstractionStarter]: Result for error location t2 was TIMEOUT (5/5) [2021-06-05 18:22:34,434 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 18:22:34,436 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 18:22:34,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 06:22:34 BasicIcfg [2021-06-05 18:22:34,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 18:22:34,437 INFO L168 Benchmark]: Toolchain (without parser) took 855434.02 ms. Allocated memory was 356.5 MB in the beginning and 3.4 GB in the end (delta: 3.0 GB). Free memory was 318.2 MB in the beginning and 2.7 GB in the end (delta: -2.4 GB). Peak memory consumption was 624.5 MB. Max. memory is 16.0 GB. [2021-06-05 18:22:34,437 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 356.5 MB. Free memory is still 336.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 18:22:34,438 INFO L168 Benchmark]: CACSL2BoogieTranslator took 594.75 ms. Allocated memory is still 356.5 MB. Free memory was 318.0 MB in the beginning and 292.0 MB in the end (delta: 26.0 MB). Peak memory consumption was 28.5 MB. Max. memory is 16.0 GB. [2021-06-05 18:22:34,438 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.11 ms. Allocated memory is still 356.5 MB. Free memory was 292.0 MB in the beginning and 289.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 18:22:34,438 INFO L168 Benchmark]: Boogie Preprocessor took 45.01 ms. Allocated memory is still 356.5 MB. Free memory was 289.8 MB in the beginning and 287.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 18:22:34,438 INFO L168 Benchmark]: RCFGBuilder took 517.00 ms. Allocated memory is still 356.5 MB. Free memory was 287.8 MB in the beginning and 253.4 MB in the end (delta: 34.4 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. [2021-06-05 18:22:34,438 INFO L168 Benchmark]: TraceAbstraction took 854205.19 ms. Allocated memory was 356.5 MB in the beginning and 3.4 GB in the end (delta: 3.0 GB). Free memory was 253.0 MB in the beginning and 2.7 GB in the end (delta: -2.5 GB). Peak memory consumption was 560.2 MB. Max. memory is 16.0 GB. [2021-06-05 18:22:34,438 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 356.5 MB. Free memory is still 336.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 594.75 ms. Allocated memory is still 356.5 MB. Free memory was 318.0 MB in the beginning and 292.0 MB in the end (delta: 26.0 MB). Peak memory consumption was 28.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 66.11 ms. Allocated memory is still 356.5 MB. Free memory was 292.0 MB in the beginning and 289.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 45.01 ms. Allocated memory is still 356.5 MB. Free memory was 289.8 MB in the beginning and 287.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 517.00 ms. Allocated memory is still 356.5 MB. Free memory was 287.8 MB in the beginning and 253.4 MB in the end (delta: 34.4 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 854205.19 ms. Allocated memory was 356.5 MB in the beginning and 3.4 GB in the end (delta: 3.0 GB). Free memory was 253.0 MB in the beginning and 2.7 GB in the end (delta: -2.5 GB). Peak memory consumption was 560.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 941]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 149 places, 154 transitions, 330 flow. Already constructed 2 states. Currently 1 states in worklist.. - TimeoutResultAtElement [Line: 941]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 137 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 1 iterations of DualJunctionQuantifierElimination. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t1Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 234 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 22225.8ms, OverallIterations: 19, TraceHistogramMax: 6, EmptinessCheckTime: 377.1ms, AutomataDifference: 3928.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 331.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3604 SDtfs, 8647 SDslu, 16168 SDs, 0 SdLazy, 1566 SolverSat, 229 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 868.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3514 GetRequests, 3217 SyntacticMatches, 0 SemanticMatches, 297 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 968 ImplicationChecksByTransitivity, 1854.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=14966occurred in iteration=12, InterpolantAutomatonStates: 251, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 4175.8ms AutomataMinimizationTime, 19 MinimizatonAttempts, 46283 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 494.8ms SsaConstructionTime, 1482.7ms SatisfiabilityAnalysisTime, 6913.8ms InterpolantComputationTime, 6622 NumberOfCodeBlocks, 6391 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 6587 ConstructedInterpolants, 0 QuantifiedInterpolants, 17962 SizeOfPredicates, 126 NumberOfNonLiveVariables, 6104 ConjunctsInSsa, 163 ConjunctsInUnsatCore, 35 InterpolantComputations, 6 PerfectInterpolantSequences, 2047/6660 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: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 234 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 270.5ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 37.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 233.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8468occurred 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: t2Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 234 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 831547.5ms, OverallIterations: 8, TraceHistogramMax: 2, EmptinessCheckTime: 51.0ms, AutomataDifference: 13061.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 191.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2440 SDtfs, 4838 SDslu, 32484 SDs, 0 SdLazy, 9753 SolverSat, 119 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4098.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 393 GetRequests, 137 SyntacticMatches, 7 SemanticMatches, 249 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3321 ImplicationChecksByTransitivity, 10090.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9892occurred in iteration=1, InterpolantAutomatonStates: 178, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 665.4ms AutomataMinimizationTime, 7 MinimizatonAttempts, 19013 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.8ms SsaConstructionTime, 130.4ms SatisfiabilityAnalysisTime, 3655.8ms InterpolantComputationTime, 812 NumberOfCodeBlocks, 812 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 804 ConstructedInterpolants, 0 QuantifiedInterpolants, 9182 SizeOfPredicates, 29 NumberOfNonLiveVariables, 303 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 0/62 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: t1 with 1 thread instances CFG has 5 procedures, 234 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 2.7ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, 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: t2 with 1 thread instances CFG has 5 procedures, 234 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 2.2ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown