/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread/queue_ok_longer.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 16:05:23,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 16:05:23,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 16:05:23,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 16:05:23,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 16:05:23,629 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 16:05:23,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 16:05:23,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 16:05:23,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 16:05:23,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 16:05:23,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 16:05:23,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 16:05:23,638 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 16:05:23,639 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 16:05:23,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 16:05:23,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 16:05:23,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 16:05:23,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 16:05:23,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 16:05:23,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 16:05:23,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 16:05:23,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 16:05:23,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 16:05:23,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 16:05:23,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 16:05:23,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 16:05:23,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 16:05:23,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 16:05:23,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 16:05:23,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 16:05:23,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 16:05:23,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 16:05:23,660 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 16:05:23,661 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 16:05:23,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 16:05:23,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 16:05:23,662 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 16:05:23,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 16:05:23,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 16:05:23,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 16:05:23,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 16:05:23,666 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-McrStrategy.epf [2020-04-18 16:05:23,689 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 16:05:23,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 16:05:23,692 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 16:05:23,692 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 16:05:23,692 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 16:05:23,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 16:05:23,693 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 16:05:23,693 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 16:05:23,693 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 16:05:23,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 16:05:23,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 16:05:23,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 16:05:23,695 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 16:05:23,695 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 16:05:23,695 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 16:05:23,696 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 16:05:23,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 16:05:23,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 16:05:23,696 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 16:05:23,696 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 16:05:23,697 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 16:05:23,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 16:05:23,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 16:05:23,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 16:05:23,698 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 16:05:23,698 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 16:05:23,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 16:05:23,698 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 16:05:23,699 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 16:05:23,699 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 16:05:23,700 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 16:05:23,983 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 16:05:23,997 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 16:05:24,000 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 16:05:24,002 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 16:05:24,002 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 16:05:24,003 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/queue_ok_longer.i [2020-04-18 16:05:24,089 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f76cf1cc3/3f80f944241d4ef298995ea4a0e8fd52/FLAG0adad9c4a [2020-04-18 16:05:24,679 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 16:05:24,679 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longer.i [2020-04-18 16:05:24,702 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f76cf1cc3/3f80f944241d4ef298995ea4a0e8fd52/FLAG0adad9c4a [2020-04-18 16:05:24,918 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f76cf1cc3/3f80f944241d4ef298995ea4a0e8fd52 [2020-04-18 16:05:24,929 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 16:05:24,946 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 16:05:24,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 16:05:24,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 16:05:24,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 16:05:24,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:05:24" (1/1) ... [2020-04-18 16:05:24,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63844b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:24, skipping insertion in model container [2020-04-18 16:05:24,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:05:24" (1/1) ... [2020-04-18 16:05:24,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 16:05:25,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 16:05:25,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 16:05:25,701 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 16:05:25,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 16:05:25,987 INFO L208 MainTranslator]: Completed translation [2020-04-18 16:05:25,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:25 WrapperNode [2020-04-18 16:05:25,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 16:05:25,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 16:05:25,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 16:05:25,989 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 16:05:26,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:25" (1/1) ... [2020-04-18 16:05:26,062 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:25" (1/1) ... [2020-04-18 16:05:26,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 16:05:26,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 16:05:26,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 16:05:26,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 16:05:26,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:25" (1/1) ... [2020-04-18 16:05:26,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:25" (1/1) ... [2020-04-18 16:05:26,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:25" (1/1) ... [2020-04-18 16:05:26,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:25" (1/1) ... [2020-04-18 16:05:26,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:25" (1/1) ... [2020-04-18 16:05:26,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:25" (1/1) ... [2020-04-18 16:05:26,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:25" (1/1) ... [2020-04-18 16:05:26,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 16:05:26,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 16:05:26,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 16:05:26,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 16:05:26,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:25" (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 [2020-04-18 16:05:26,252 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-04-18 16:05:26,253 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-04-18 16:05:26,253 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-04-18 16:05:26,253 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-04-18 16:05:26,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 16:05:26,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 16:05:26,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 16:05:26,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 16:05:26,254 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-04-18 16:05:26,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-18 16:05:26,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 16:05:26,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 16:05:26,257 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 16:05:26,962 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 16:05:26,962 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-04-18 16:05:26,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:05:26 BoogieIcfgContainer [2020-04-18 16:05:26,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 16:05:26,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 16:05:26,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 16:05:26,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 16:05:26,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:05:24" (1/3) ... [2020-04-18 16:05:26,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560a3e93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:05:26, skipping insertion in model container [2020-04-18 16:05:26,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:25" (2/3) ... [2020-04-18 16:05:26,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560a3e93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:05:26, skipping insertion in model container [2020-04-18 16:05:26,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:05:26" (3/3) ... [2020-04-18 16:05:26,975 INFO L109 eAbstractionObserver]: Analyzing ICFG queue_ok_longer.i [2020-04-18 16:05:26,986 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 16:05:26,986 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 16:05:26,994 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-04-18 16:05:26,995 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 16:05:27,033 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,033 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,034 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,034 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,034 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,035 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,035 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,035 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,036 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,036 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,036 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,036 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,036 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,037 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,037 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,037 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,037 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,037 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,038 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,038 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,038 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,038 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,038 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,039 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,039 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,039 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,039 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,039 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,039 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,040 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,040 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,040 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,040 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,040 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,040 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,041 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,041 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,041 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,041 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,041 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,042 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,042 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,042 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,042 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,043 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,043 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,043 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,043 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,043 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,044 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,044 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,044 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,044 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,044 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,045 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,045 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,045 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,045 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,045 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,046 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,046 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,046 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,046 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,046 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,047 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,047 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,047 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,047 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,047 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,047 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,048 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,048 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,048 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,048 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,049 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,049 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,049 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,049 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,049 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,050 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,050 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,050 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,050 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,050 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,051 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,051 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,052 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,053 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,053 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,053 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,053 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,054 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,054 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,054 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,054 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,055 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,055 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,055 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,055 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,055 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,056 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,056 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,056 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,056 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,056 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,056 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,057 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,057 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,057 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,057 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,057 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,058 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,058 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,058 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,058 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,058 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,059 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,059 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,059 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,059 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,059 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,059 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,060 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,060 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,060 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,060 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,060 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,061 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,061 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,061 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,061 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,062 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,062 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,062 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,062 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,062 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,063 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,063 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,063 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,063 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,063 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,064 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,064 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,064 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,064 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,064 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,064 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,065 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,065 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,065 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,065 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,065 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,065 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,066 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,066 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,066 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,066 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,066 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,067 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,067 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,067 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,067 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,067 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,067 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,068 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,068 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,068 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,068 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,068 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,069 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,069 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,069 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,069 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,069 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,070 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,070 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,070 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,070 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,070 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,071 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,071 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,071 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,071 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,071 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,072 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,072 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,072 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,072 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,072 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,073 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,073 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,073 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,073 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,073 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,073 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,074 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,074 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,074 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,074 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,074 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,075 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,075 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,075 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,075 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,076 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,076 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,076 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,076 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,076 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,077 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,077 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,077 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,081 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,081 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,081 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,082 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,082 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,082 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,082 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,082 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,082 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,083 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,083 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,083 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,083 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,084 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,084 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,084 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,084 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,084 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,085 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,085 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,085 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,085 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,085 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,091 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,091 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,092 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,092 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,092 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,092 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,092 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,093 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,093 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,093 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,093 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,093 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,093 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,094 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,094 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,094 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,094 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,094 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,095 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,095 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,095 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,095 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,095 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,096 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,096 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,096 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,096 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,096 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,097 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,097 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,097 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:27,127 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-18 16:05:27,149 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 16:05:27,149 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 16:05:27,149 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 16:05:27,149 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 16:05:27,149 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 16:05:27,150 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 16:05:27,150 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 16:05:27,150 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 16:05:27,173 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 196 places, 204 transitions, 430 flow [2020-04-18 16:05:27,680 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 10787 states. [2020-04-18 16:05:27,684 INFO L276 IsEmpty]: Start isEmpty. Operand 10787 states. [2020-04-18 16:05:27,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-04-18 16:05:27,695 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:05:27,697 INFO L425 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] [2020-04-18 16:05:27,697 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:05:27,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:27,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1929394428, now seen corresponding path program 1 times [2020-04-18 16:05:27,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:05:27,716 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [980508900] [2020-04-18 16:05:27,738 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:27,751 INFO L259 McrAutomatonBuilder]: Finished intersection with 45 states and 44 transitions. [2020-04-18 16:05:27,753 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-04-18 16:05:27,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-04-18 16:05:27,756 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:05:27,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:27,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1929394428, now seen corresponding path program 2 times [2020-04-18 16:05:27,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:05:27,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570879331] [2020-04-18 16:05:27,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:05:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:05:28,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:05:28,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570879331] [2020-04-18 16:05:28,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:05:28,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 16:05:28,159 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:05:28,169 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:28,189 INFO L259 McrAutomatonBuilder]: Finished intersection with 45 states and 44 transitions. [2020-04-18 16:05:28,190 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:05:28,197 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:05:28,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 16:05:28,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 16:05:28,203 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-04-18 16:05:28,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:05:28,210 INFO L93 Difference]: Finished difference Result 45 states and 44 transitions. [2020-04-18 16:05:28,211 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 44 transitions. [2020-04-18 16:05:28,212 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:05:28,213 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [980508900] [2020-04-18 16:05:28,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:05:28,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 16:05:28,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [980508900] [2020-04-18 16:05:28,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 16:05:28,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:05:28,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 16:05:28,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 16:05:28,223 INFO L87 Difference]: Start difference. First operand 10787 states. Second operand 2 states. [2020-04-18 16:05:28,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:05:28,352 INFO L93 Difference]: Finished difference Result 10784 states and 29353 transitions. [2020-04-18 16:05:28,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 16:05:28,354 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 44 [2020-04-18 16:05:28,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:05:28,455 INFO L225 Difference]: With dead ends: 10784 [2020-04-18 16:05:28,455 INFO L226 Difference]: Without dead ends: 9749 [2020-04-18 16:05:28,458 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 16:05:28,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9749 states. [2020-04-18 16:05:28,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9749 to 9749. [2020-04-18 16:05:28,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9749 states. [2020-04-18 16:05:28,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9749 states to 9749 states and 26526 transitions. [2020-04-18 16:05:28,957 INFO L78 Accepts]: Start accepts. Automaton has 9749 states and 26526 transitions. Word has length 44 [2020-04-18 16:05:28,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:05:28,958 INFO L479 AbstractCegarLoop]: Abstraction has 9749 states and 26526 transitions. [2020-04-18 16:05:28,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 16:05:28,958 INFO L276 IsEmpty]: Start isEmpty. Operand 9749 states and 26526 transitions. [2020-04-18 16:05:28,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 16:05:28,980 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:05:28,980 INFO L425 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] [2020-04-18 16:05:28,981 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:05:28,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:28,981 INFO L82 PathProgramCache]: Analyzing trace with hash -593181059, now seen corresponding path program 1 times [2020-04-18 16:05:28,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:05:28,981 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [31966466] [2020-04-18 16:05:28,990 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:28,999 INFO L259 McrAutomatonBuilder]: Finished intersection with 98 states and 97 transitions. [2020-04-18 16:05:29,000 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2020-04-18 16:05:29,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-04-18 16:05:29,001 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:05:29,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:29,001 INFO L82 PathProgramCache]: Analyzing trace with hash -593181059, now seen corresponding path program 2 times [2020-04-18 16:05:29,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:05:29,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384122377] [2020-04-18 16:05:29,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:05:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:05:29,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:05:29,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384122377] [2020-04-18 16:05:29,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:05:29,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-04-18 16:05:29,432 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:05:29,574 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:29,626 INFO L259 McrAutomatonBuilder]: Finished intersection with 98 states and 97 transitions. [2020-04-18 16:05:29,627 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:05:29,749 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:05:29,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-04-18 16:05:29,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-04-18 16:05:29,750 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 12 states. [2020-04-18 16:05:30,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:05:30,123 INFO L93 Difference]: Finished difference Result 98 states and 97 transitions. [2020-04-18 16:05:30,124 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 97 transitions. [2020-04-18 16:05:30,124 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:05:30,126 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [31966466] [2020-04-18 16:05:30,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:05:30,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-04-18 16:05:30,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [31966466] [2020-04-18 16:05:30,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-04-18 16:05:30,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:05:30,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-04-18 16:05:30,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=257, Unknown=0, NotChecked=0, Total=380 [2020-04-18 16:05:30,130 INFO L87 Difference]: Start difference. First operand 9749 states and 26526 transitions. Second operand 12 states. [2020-04-18 16:05:31,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:05:31,082 INFO L93 Difference]: Finished difference Result 9780 states and 26590 transitions. [2020-04-18 16:05:31,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 16:05:31,083 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2020-04-18 16:05:31,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:05:31,158 INFO L225 Difference]: With dead ends: 9780 [2020-04-18 16:05:31,158 INFO L226 Difference]: Without dead ends: 9780 [2020-04-18 16:05:31,161 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=285, Unknown=0, NotChecked=0, Total=420 [2020-04-18 16:05:31,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9780 states. [2020-04-18 16:05:31,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9780 to 9746. [2020-04-18 16:05:31,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9746 states. [2020-04-18 16:05:31,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9746 states to 9746 states and 26522 transitions. [2020-04-18 16:05:31,517 INFO L78 Accepts]: Start accepts. Automaton has 9746 states and 26522 transitions. Word has length 97 [2020-04-18 16:05:31,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:05:31,518 INFO L479 AbstractCegarLoop]: Abstraction has 9746 states and 26522 transitions. [2020-04-18 16:05:31,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-04-18 16:05:31,518 INFO L276 IsEmpty]: Start isEmpty. Operand 9746 states and 26522 transitions. [2020-04-18 16:05:31,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-04-18 16:05:31,535 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:05:31,535 INFO L425 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] [2020-04-18 16:05:31,536 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:05:31,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:31,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1482308150, now seen corresponding path program 1 times [2020-04-18 16:05:31,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:05:31,536 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1195687466] [2020-04-18 16:05:31,542 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:31,548 INFO L259 McrAutomatonBuilder]: Finished intersection with 99 states and 98 transitions. [2020-04-18 16:05:31,549 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states. [2020-04-18 16:05:31,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-04-18 16:05:31,550 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:05:31,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:31,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1482308150, now seen corresponding path program 2 times [2020-04-18 16:05:31,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:05:31,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169992998] [2020-04-18 16:05:31,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:05:31,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:05:31,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:05:31,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169992998] [2020-04-18 16:05:31,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:05:31,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:05:31,652 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:05:31,765 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:31,813 INFO L259 McrAutomatonBuilder]: Finished intersection with 99 states and 98 transitions. [2020-04-18 16:05:31,814 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:05:31,824 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:05:31,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:05:31,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:05:31,825 INFO L87 Difference]: Start difference. First operand 99 states. Second operand 3 states. [2020-04-18 16:05:31,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:05:31,828 INFO L93 Difference]: Finished difference Result 99 states and 98 transitions. [2020-04-18 16:05:31,829 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 98 transitions. [2020-04-18 16:05:31,829 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:05:31,829 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1195687466] [2020-04-18 16:05:31,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:05:31,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 16:05:31,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1195687466] [2020-04-18 16:05:31,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 16:05:31,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:05:31,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:05:31,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:05:31,831 INFO L87 Difference]: Start difference. First operand 9746 states and 26522 transitions. Second operand 3 states. [2020-04-18 16:05:31,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:05:31,847 INFO L93 Difference]: Finished difference Result 1913 states and 4515 transitions. [2020-04-18 16:05:31,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 16:05:31,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2020-04-18 16:05:31,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:05:31,853 INFO L225 Difference]: With dead ends: 1913 [2020-04-18 16:05:31,854 INFO L226 Difference]: Without dead ends: 1826 [2020-04-18 16:05:31,854 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:05:31,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2020-04-18 16:05:31,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 1826. [2020-04-18 16:05:31,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1826 states. [2020-04-18 16:05:31,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1826 states to 1826 states and 4316 transitions. [2020-04-18 16:05:31,894 INFO L78 Accepts]: Start accepts. Automaton has 1826 states and 4316 transitions. Word has length 98 [2020-04-18 16:05:31,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:05:31,895 INFO L479 AbstractCegarLoop]: Abstraction has 1826 states and 4316 transitions. [2020-04-18 16:05:31,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 16:05:31,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1826 states and 4316 transitions. [2020-04-18 16:05:31,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-04-18 16:05:31,900 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:05:31,901 INFO L425 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, 1, 1, 1, 1, 1, 1] [2020-04-18 16:05:31,901 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:05:31,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:31,901 INFO L82 PathProgramCache]: Analyzing trace with hash 803546275, now seen corresponding path program 1 times [2020-04-18 16:05:31,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:05:31,902 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [701903640] [2020-04-18 16:05:31,909 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:31,940 INFO L259 McrAutomatonBuilder]: Finished intersection with 619 states and 1128 transitions. [2020-04-18 16:05:31,944 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states. [2020-04-18 16:05:31,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-04-18 16:05:31,946 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:05:31,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:31,947 INFO L82 PathProgramCache]: Analyzing trace with hash 803546275, now seen corresponding path program 2 times [2020-04-18 16:05:31,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:05:31,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553443565] [2020-04-18 16:05:31,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:05:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:05:32,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:05:32,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553443565] [2020-04-18 16:05:32,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:05:32,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:05:32,001 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:05:32,030 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:32,194 INFO L259 McrAutomatonBuilder]: Finished intersection with 171 states and 232 transitions. [2020-04-18 16:05:32,194 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:05:32,208 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 16:05:32,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:05:32,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:05:32,209 INFO L87 Difference]: Start difference. First operand 619 states. Second operand 3 states. [2020-04-18 16:05:32,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:05:32,217 INFO L93 Difference]: Finished difference Result 619 states and 1128 transitions. [2020-04-18 16:05:32,217 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 1128 transitions. [2020-04-18 16:05:32,219 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:05:32,219 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [701903640] [2020-04-18 16:05:32,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:05:32,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 16:05:32,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [701903640] [2020-04-18 16:05:32,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 16:05:32,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:05:32,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:05:32,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:05:32,221 INFO L87 Difference]: Start difference. First operand 1826 states and 4316 transitions. Second operand 3 states. [2020-04-18 16:05:32,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:05:32,247 INFO L93 Difference]: Finished difference Result 2438 states and 5796 transitions. [2020-04-18 16:05:32,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 16:05:32,248 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2020-04-18 16:05:32,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:05:32,253 INFO L225 Difference]: With dead ends: 2438 [2020-04-18 16:05:32,254 INFO L226 Difference]: Without dead ends: 2438 [2020-04-18 16:05:32,254 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:05:32,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2438 states. [2020-04-18 16:05:32,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2438 to 1844. [2020-04-18 16:05:32,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1844 states. [2020-04-18 16:05:32,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 4359 transitions. [2020-04-18 16:05:32,305 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 4359 transitions. Word has length 108 [2020-04-18 16:05:32,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:05:32,305 INFO L479 AbstractCegarLoop]: Abstraction has 1844 states and 4359 transitions. [2020-04-18 16:05:32,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 16:05:32,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 4359 transitions. [2020-04-18 16:05:32,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-04-18 16:05:32,311 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:05:32,311 INFO L425 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:05:32,311 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:05:32,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:32,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1502895453, now seen corresponding path program 1 times [2020-04-18 16:05:32,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:05:32,312 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1693201391] [2020-04-18 16:05:32,323 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:32,426 INFO L259 McrAutomatonBuilder]: Finished intersection with 2127 states and 4115 transitions. [2020-04-18 16:05:32,438 INFO L276 IsEmpty]: Start isEmpty. Operand 2127 states. [2020-04-18 16:05:32,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-04-18 16:05:32,444 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:05:32,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:32,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1502895453, now seen corresponding path program 2 times [2020-04-18 16:05:32,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:05:32,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591608575] [2020-04-18 16:05:32,445 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:05:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:05:32,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:05:32,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591608575] [2020-04-18 16:05:32,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352734167] [2020-04-18 16:05:32,548 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 [2020-04-18 16:05:32,672 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-04-18 16:05:32,672 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 16:05:32,674 INFO L264 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 2 conjunts are in the unsatisfiable core [2020-04-18 16:05:32,689 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 16:05:32,789 INFO L377 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 11 treesize of output 7 [2020-04-18 16:05:32,789 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:05:32,793 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:05:32,793 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 16:05:32,794 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-04-18 16:05:32,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-04-18 16:05:32,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:05:32,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-04-18 16:05:32,829 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:05:32,880 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:33,650 INFO L259 McrAutomatonBuilder]: Finished intersection with 357 states and 575 transitions. [2020-04-18 16:05:33,650 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:05:34,079 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 39 times. [2020-04-18 16:05:34,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-04-18 16:05:34,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2020-04-18 16:05:34,080 INFO L87 Difference]: Start difference. First operand 2127 states. Second operand 21 states. [2020-04-18 16:05:34,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:05:34,572 INFO L93 Difference]: Finished difference Result 2127 states and 4115 transitions. [2020-04-18 16:05:34,572 INFO L276 IsEmpty]: Start isEmpty. Operand 2127 states and 4115 transitions. [2020-04-18 16:05:34,576 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:05:34,576 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1693201391] [2020-04-18 16:05:34,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:05:34,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 16:05:34,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1693201391] [2020-04-18 16:05:34,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-04-18 16:05:34,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:05:34,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-04-18 16:05:34,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=467, Unknown=0, NotChecked=0, Total=650 [2020-04-18 16:05:34,578 INFO L87 Difference]: Start difference. First operand 1844 states and 4359 transitions. Second operand 21 states. [2020-04-18 16:05:35,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:05:35,518 INFO L93 Difference]: Finished difference Result 2744 states and 6222 transitions. [2020-04-18 16:05:35,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-04-18 16:05:35,520 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 137 [2020-04-18 16:05:35,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:05:35,526 INFO L225 Difference]: With dead ends: 2744 [2020-04-18 16:05:35,527 INFO L226 Difference]: Without dead ends: 2720 [2020-04-18 16:05:35,527 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 310 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=257, Invalid=735, Unknown=0, NotChecked=0, Total=992 [2020-04-18 16:05:35,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2720 states. [2020-04-18 16:05:35,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2720 to 2228. [2020-04-18 16:05:35,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2228 states. [2020-04-18 16:05:35,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 5033 transitions. [2020-04-18 16:05:35,579 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 5033 transitions. Word has length 137 [2020-04-18 16:05:35,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:05:35,580 INFO L479 AbstractCegarLoop]: Abstraction has 2228 states and 5033 transitions. [2020-04-18 16:05:35,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-04-18 16:05:35,580 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 5033 transitions. [2020-04-18 16:05:35,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-04-18 16:05:35,586 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:05:35,586 INFO L425 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:05:35,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:05:35,790 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:05:35,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:35,791 INFO L82 PathProgramCache]: Analyzing trace with hash -834842345, now seen corresponding path program 1 times [2020-04-18 16:05:35,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:05:35,791 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [407802975] [2020-04-18 16:05:35,806 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:35,972 INFO L259 McrAutomatonBuilder]: Finished intersection with 5195 states and 10192 transitions. [2020-04-18 16:05:35,999 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states. [2020-04-18 16:05:36,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-04-18 16:05:36,012 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:05:36,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:36,013 INFO L82 PathProgramCache]: Analyzing trace with hash -834842345, now seen corresponding path program 2 times [2020-04-18 16:05:36,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:05:36,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592293496] [2020-04-18 16:05:36,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:05:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:05:36,210 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:05:36,211 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592293496] [2020-04-18 16:05:36,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891037351] [2020-04-18 16:05:36,213 INFO L92 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 [2020-04-18 16:05:36,370 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-18 16:05:36,370 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 16:05:36,372 INFO L264 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 8 conjunts are in the unsatisfiable core [2020-04-18 16:05:36,377 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 16:05:36,457 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:05:36,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 16:05:36,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-04-18 16:05:36,458 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:05:36,687 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:38,308 INFO L259 McrAutomatonBuilder]: Finished intersection with 523 states and 848 transitions. [2020-04-18 16:05:38,308 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:05:38,497 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 16:05:38,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 16:05:38,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-04-18 16:05:38,498 INFO L87 Difference]: Start difference. First operand 5195 states. Second operand 11 states. [2020-04-18 16:05:38,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:05:38,636 INFO L93 Difference]: Finished difference Result 5195 states and 10192 transitions. [2020-04-18 16:05:38,637 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 10192 transitions. [2020-04-18 16:05:38,645 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:05:38,646 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [407802975] [2020-04-18 16:05:38,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:05:38,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-04-18 16:05:38,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [407802975] [2020-04-18 16:05:38,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 16:05:38,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:05:38,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 16:05:38,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2020-04-18 16:05:38,647 INFO L87 Difference]: Start difference. First operand 2228 states and 5033 transitions. Second operand 11 states. [2020-04-18 16:05:38,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:05:38,705 INFO L93 Difference]: Finished difference Result 3044 states and 6893 transitions. [2020-04-18 16:05:38,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-04-18 16:05:38,705 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 196 [2020-04-18 16:05:38,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:05:38,713 INFO L225 Difference]: With dead ends: 3044 [2020-04-18 16:05:38,713 INFO L226 Difference]: Without dead ends: 3044 [2020-04-18 16:05:38,713 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2020-04-18 16:05:38,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3044 states. [2020-04-18 16:05:38,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3044 to 2648. [2020-04-18 16:05:38,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2648 states. [2020-04-18 16:05:38,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2648 states to 2648 states and 5990 transitions. [2020-04-18 16:05:38,769 INFO L78 Accepts]: Start accepts. Automaton has 2648 states and 5990 transitions. Word has length 196 [2020-04-18 16:05:38,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:05:38,769 INFO L479 AbstractCegarLoop]: Abstraction has 2648 states and 5990 transitions. [2020-04-18 16:05:38,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 16:05:38,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2648 states and 5990 transitions. [2020-04-18 16:05:38,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-04-18 16:05:38,776 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:05:38,776 INFO L425 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:05:38,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:05:38,982 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:05:38,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:38,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1515607087, now seen corresponding path program 3 times [2020-04-18 16:05:38,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:05:38,984 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1513437866] [2020-04-18 16:05:39,007 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:39,592 INFO L259 McrAutomatonBuilder]: Finished intersection with 6703 states and 13179 transitions. [2020-04-18 16:05:39,630 INFO L276 IsEmpty]: Start isEmpty. Operand 6703 states. [2020-04-18 16:05:39,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-04-18 16:05:39,646 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:05:39,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:39,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1515607087, now seen corresponding path program 4 times [2020-04-18 16:05:39,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:05:39,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169903572] [2020-04-18 16:05:39,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:05:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:05:39,983 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:05:39,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169903572] [2020-04-18 16:05:39,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090583285] [2020-04-18 16:05:39,984 INFO L92 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 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 [2020-04-18 16:05:40,360 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-04-18 16:05:40,361 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 16:05:40,364 INFO L264 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 10 conjunts are in the unsatisfiable core [2020-04-18 16:05:40,375 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 16:05:40,479 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:05:40,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 16:05:40,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2020-04-18 16:05:40,480 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:05:40,587 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:43,124 INFO L259 McrAutomatonBuilder]: Finished intersection with 639 states and 1051 transitions. [2020-04-18 16:05:43,125 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:05:43,217 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 16:05:43,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-18 16:05:43,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-04-18 16:05:43,218 INFO L87 Difference]: Start difference. First operand 6703 states. Second operand 13 states. [2020-04-18 16:05:43,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:05:43,418 INFO L93 Difference]: Finished difference Result 6703 states and 13179 transitions. [2020-04-18 16:05:43,418 INFO L276 IsEmpty]: Start isEmpty. Operand 6703 states and 13179 transitions. [2020-04-18 16:05:43,427 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:05:43,427 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1513437866] [2020-04-18 16:05:43,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:05:43,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-04-18 16:05:43,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1513437866] [2020-04-18 16:05:43,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-18 16:05:43,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:05:43,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-18 16:05:43,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2020-04-18 16:05:43,429 INFO L87 Difference]: Start difference. First operand 2648 states and 5990 transitions. Second operand 13 states. [2020-04-18 16:05:43,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:05:43,505 INFO L93 Difference]: Finished difference Result 3464 states and 7850 transitions. [2020-04-18 16:05:43,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-04-18 16:05:43,506 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 225 [2020-04-18 16:05:43,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:05:43,513 INFO L225 Difference]: With dead ends: 3464 [2020-04-18 16:05:43,514 INFO L226 Difference]: Without dead ends: 3464 [2020-04-18 16:05:43,514 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 465 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2020-04-18 16:05:43,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3464 states. [2020-04-18 16:05:43,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3464 to 3068. [2020-04-18 16:05:43,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3068 states. [2020-04-18 16:05:43,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3068 states to 3068 states and 6947 transitions. [2020-04-18 16:05:43,571 INFO L78 Accepts]: Start accepts. Automaton has 3068 states and 6947 transitions. Word has length 225 [2020-04-18 16:05:43,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:05:43,571 INFO L479 AbstractCegarLoop]: Abstraction has 3068 states and 6947 transitions. [2020-04-18 16:05:43,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-18 16:05:43,572 INFO L276 IsEmpty]: Start isEmpty. Operand 3068 states and 6947 transitions. [2020-04-18 16:05:43,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-04-18 16:05:43,579 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:05:43,579 INFO L425 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:05:43,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:05:43,784 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:05:43,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:43,784 INFO L82 PathProgramCache]: Analyzing trace with hash -947371177, now seen corresponding path program 5 times [2020-04-18 16:05:43,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:05:43,785 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1049173861] [2020-04-18 16:05:43,802 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:44,124 INFO L259 McrAutomatonBuilder]: Finished intersection with 8211 states and 16166 transitions. [2020-04-18 16:05:44,148 INFO L276 IsEmpty]: Start isEmpty. Operand 8211 states. [2020-04-18 16:05:44,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-04-18 16:05:44,169 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:05:44,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:44,170 INFO L82 PathProgramCache]: Analyzing trace with hash -947371177, now seen corresponding path program 6 times [2020-04-18 16:05:44,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:05:44,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240606612] [2020-04-18 16:05:44,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:05:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:05:44,432 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 295 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:05:44,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240606612] [2020-04-18 16:05:44,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930961354] [2020-04-18 16:05:44,432 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE 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 [2020-04-18 16:05:45,056 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2020-04-18 16:05:45,056 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 16:05:45,058 INFO L264 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 41 conjunts are in the unsatisfiable core [2020-04-18 16:05:45,065 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 16:05:45,077 INFO L377 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 [2020-04-18 16:05:45,077 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:05:45,083 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:05:45,083 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-04-18 16:05:45,084 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-04-18 16:05:45,121 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:05:45,122 INFO L377 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 39 [2020-04-18 16:05:45,123 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:05:45,144 INFO L619 ElimStorePlain]: treesize reduction 14, result has 56.3 percent of original size [2020-04-18 16:05:45,144 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-04-18 16:05:45,144 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:18 [2020-04-18 16:05:45,179 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:05:45,180 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2020-04-18 16:05:45,181 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:05:45,192 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:05:45,192 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-04-18 16:05:45,193 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:16 [2020-04-18 16:05:45,271 INFO L377 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 [2020-04-18 16:05:45,272 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:05:45,284 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:05:45,285 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 16:05:45,285 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2020-04-18 16:05:45,334 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:05:45,336 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-04-18 16:05:45,337 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:05:45,351 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:05:45,351 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 16:05:45,352 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:34 [2020-04-18 16:05:45,455 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:05:45,457 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2020-04-18 16:05:45,457 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:05:45,477 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:05:45,478 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 16:05:45,478 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:45, output treesize:41 [2020-04-18 16:05:45,539 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:05:45,541 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2020-04-18 16:05:45,542 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:05:45,559 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:05:45,560 INFO L539 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-04-18 16:05:45,560 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:52, output treesize:48 [2020-04-18 16:05:45,812 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:05:45,843 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:05:45,844 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 119 [2020-04-18 16:05:45,845 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:05:45,909 INFO L619 ElimStorePlain]: treesize reduction 60, result has 50.8 percent of original size [2020-04-18 16:05:45,911 INFO L539 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-04-18 16:05:45,912 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:72, output treesize:48 [2020-04-18 16:05:45,943 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:05:45,946 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2020-04-18 16:05:45,947 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:05:45,964 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:05:45,966 INFO L539 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-04-18 16:05:45,966 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:63, output treesize:39 [2020-04-18 16:05:46,028 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2020-04-18 16:05:46,028 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:05:46,041 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:05:46,041 INFO L539 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 16:05:46,042 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:41, output treesize:3 [2020-04-18 16:05:46,223 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2020-04-18 16:05:46,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:05:46,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [13] total 28 [2020-04-18 16:05:46,225 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:05:46,322 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:50,595 INFO L259 McrAutomatonBuilder]: Finished intersection with 755 states and 1254 transitions. [2020-04-18 16:05:50,596 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:05:51,465 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times. [2020-04-18 16:05:51,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-04-18 16:05:51,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=894, Unknown=0, NotChecked=0, Total=992 [2020-04-18 16:05:51,467 INFO L87 Difference]: Start difference. First operand 8211 states. Second operand 32 states. [2020-04-18 16:05:53,132 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2020-04-18 16:05:53,606 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2020-04-18 16:05:53,904 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-04-18 16:05:54,190 WARN L192 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 86 [2020-04-18 16:05:54,712 WARN L192 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 115 [2020-04-18 16:05:55,223 WARN L192 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 102 [2020-04-18 16:05:55,954 WARN L192 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 106 [2020-04-18 16:05:56,406 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 88 [2020-04-18 16:05:56,781 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 84 [2020-04-18 16:06:07,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:06:07,491 INFO L93 Difference]: Finished difference Result 14962 states and 29533 transitions. [2020-04-18 16:06:07,491 INFO L276 IsEmpty]: Start isEmpty. Operand 14962 states and 29533 transitions. [2020-04-18 16:06:07,503 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:06:07,504 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1049173861] [2020-04-18 16:06:07,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:06:07,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-04-18 16:06:07,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1049173861] [2020-04-18 16:06:07,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-04-18 16:06:07,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:06:07,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-04-18 16:06:07,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1551, Invalid=6105, Unknown=0, NotChecked=0, Total=7656 [2020-04-18 16:06:07,507 INFO L87 Difference]: Start difference. First operand 3068 states and 6947 transitions. Second operand 32 states. [2020-04-18 16:06:09,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:06:09,442 INFO L93 Difference]: Finished difference Result 3735 states and 8424 transitions. [2020-04-18 16:06:09,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-04-18 16:06:09,443 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 254 [2020-04-18 16:06:09,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:06:09,452 INFO L225 Difference]: With dead ends: 3735 [2020-04-18 16:06:09,453 INFO L226 Difference]: Without dead ends: 3735 [2020-04-18 16:06:09,455 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 664 GetRequests, 576 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1840 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=1639, Invalid=6371, Unknown=0, NotChecked=0, Total=8010 [2020-04-18 16:06:09,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3735 states. [2020-04-18 16:06:09,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3735 to 3339. [2020-04-18 16:06:09,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3339 states. [2020-04-18 16:06:09,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3339 states to 3339 states and 7521 transitions. [2020-04-18 16:06:09,520 INFO L78 Accepts]: Start accepts. Automaton has 3339 states and 7521 transitions. Word has length 254 [2020-04-18 16:06:09,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:06:09,520 INFO L479 AbstractCegarLoop]: Abstraction has 3339 states and 7521 transitions. [2020-04-18 16:06:09,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-04-18 16:06:09,521 INFO L276 IsEmpty]: Start isEmpty. Operand 3339 states and 7521 transitions. [2020-04-18 16:06:09,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-04-18 16:06:09,528 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:06:09,528 INFO L425 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:06:09,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:06:09,734 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:06:09,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:06:09,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1334521713, now seen corresponding path program 7 times [2020-04-18 16:06:09,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:06:09,735 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1616966635] [2020-04-18 16:06:09,748 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:06:10,086 INFO L259 McrAutomatonBuilder]: Finished intersection with 9719 states and 19153 transitions. [2020-04-18 16:06:10,115 INFO L276 IsEmpty]: Start isEmpty. Operand 9719 states. [2020-04-18 16:06:10,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-04-18 16:06:10,134 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:06:10,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:06:10,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1240627217, now seen corresponding path program 8 times [2020-04-18 16:06:10,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:06:10,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062591192] [2020-04-18 16:06:10,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:06:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:06:10,543 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 441 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:06:10,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062591192] [2020-04-18 16:06:10,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468391068] [2020-04-18 16:06:10,544 INFO L92 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 [2020-04-18 16:06:10,748 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-18 16:06:10,749 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 16:06:10,751 INFO L264 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 14 conjunts are in the unsatisfiable core [2020-04-18 16:06:10,755 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 16:06:10,861 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 441 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:06:10,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 16:06:10,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 17 [2020-04-18 16:06:10,862 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:06:10,991 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:06:15,613 INFO L259 McrAutomatonBuilder]: Finished intersection with 871 states and 1457 transitions. [2020-04-18 16:06:15,614 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:06:15,748 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 16:06:15,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-18 16:06:15,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2020-04-18 16:06:15,749 INFO L87 Difference]: Start difference. First operand 9719 states. Second operand 17 states. [2020-04-18 16:06:16,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:06:16,130 INFO L93 Difference]: Finished difference Result 9719 states and 19153 transitions. [2020-04-18 16:06:16,130 INFO L276 IsEmpty]: Start isEmpty. Operand 9719 states and 19153 transitions. [2020-04-18 16:06:16,136 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:06:16,137 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1616966635] [2020-04-18 16:06:16,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:06:16,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-04-18 16:06:16,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1616966635] [2020-04-18 16:06:16,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-04-18 16:06:16,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:06:16,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-18 16:06:16,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=549, Unknown=0, NotChecked=0, Total=812 [2020-04-18 16:06:16,138 INFO L87 Difference]: Start difference. First operand 3339 states and 7521 transitions. Second operand 17 states. [2020-04-18 16:06:16,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:06:16,216 INFO L93 Difference]: Finished difference Result 4155 states and 9381 transitions. [2020-04-18 16:06:16,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-04-18 16:06:16,217 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 283 [2020-04-18 16:06:16,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:06:16,228 INFO L225 Difference]: With dead ends: 4155 [2020-04-18 16:06:16,228 INFO L226 Difference]: Without dead ends: 4155 [2020-04-18 16:06:16,229 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 589 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=263, Invalid=549, Unknown=0, NotChecked=0, Total=812 [2020-04-18 16:06:16,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4155 states. [2020-04-18 16:06:16,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4155 to 3759. [2020-04-18 16:06:16,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3759 states. [2020-04-18 16:06:16,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3759 states to 3759 states and 8478 transitions. [2020-04-18 16:06:16,290 INFO L78 Accepts]: Start accepts. Automaton has 3759 states and 8478 transitions. Word has length 283 [2020-04-18 16:06:16,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:06:16,290 INFO L479 AbstractCegarLoop]: Abstraction has 3759 states and 8478 transitions. [2020-04-18 16:06:16,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-04-18 16:06:16,290 INFO L276 IsEmpty]: Start isEmpty. Operand 3759 states and 8478 transitions. [2020-04-18 16:06:16,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-04-18 16:06:16,296 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:06:16,296 INFO L425 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:06:16,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:06:16,500 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:06:16,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:06:16,501 INFO L82 PathProgramCache]: Analyzing trace with hash -588841127, now seen corresponding path program 9 times [2020-04-18 16:06:16,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:06:16,501 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [369167929] [2020-04-18 16:06:16,523 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:06:16,856 INFO L259 McrAutomatonBuilder]: Finished intersection with 11227 states and 22140 transitions. [2020-04-18 16:06:16,885 INFO L276 IsEmpty]: Start isEmpty. Operand 11227 states. [2020-04-18 16:06:16,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-04-18 16:06:16,903 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:06:16,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:06:16,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1709355523, now seen corresponding path program 10 times [2020-04-18 16:06:16,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:06:16,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104035449] [2020-04-18 16:06:16,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:06:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:06:17,049 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2020-04-18 16:06:17,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104035449] [2020-04-18 16:06:17,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:06:17,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:06:17,051 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:06:17,208 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:06:27,546 INFO L259 McrAutomatonBuilder]: Finished intersection with 1521 states and 2728 transitions. [2020-04-18 16:06:27,546 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:06:27,571 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 16:06:27,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 16:06:27,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 16:06:27,571 INFO L87 Difference]: Start difference. First operand 11227 states. Second operand 4 states. [2020-04-18 16:06:27,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:06:27,617 INFO L93 Difference]: Finished difference Result 11273 states and 22185 transitions. [2020-04-18 16:06:27,617 INFO L276 IsEmpty]: Start isEmpty. Operand 11273 states and 22185 transitions. [2020-04-18 16:06:27,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-04-18 16:06:27,637 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 16:06:27,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:06:27,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1512588989, now seen corresponding path program 11 times [2020-04-18 16:06:27,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:06:27,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603771145] [2020-04-18 16:06:27,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:06:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:06:27,970 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:06:27,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603771145] [2020-04-18 16:06:27,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702234031] [2020-04-18 16:06:27,971 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 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 [2020-04-18 16:06:28,077 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2020-04-18 16:06:28,078 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 16:06:28,080 INFO L264 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 42 conjunts are in the unsatisfiable core [2020-04-18 16:06:28,085 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 16:06:28,122 INFO L377 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 [2020-04-18 16:06:28,122 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:06:28,124 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:06:28,124 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 16:06:28,124 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2020-04-18 16:06:28,161 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:06:28,161 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 62 [2020-04-18 16:06:28,162 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:06:28,191 INFO L619 ElimStorePlain]: treesize reduction 24, result has 59.3 percent of original size [2020-04-18 16:06:28,192 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-18 16:06:28,192 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:23 [2020-04-18 16:06:28,217 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:06:28,260 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:06:28,428 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:06:28,437 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 16:06:28,439 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 16:06:28,459 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:06:28,460 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 57 [2020-04-18 16:06:28,461 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:06:28,486 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:06:28,487 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 54 [2020-04-18 16:06:28,487 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:06:28,488 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 16:06:28,577 INFO L619 ElimStorePlain]: treesize reduction 49, result has 65.2 percent of original size [2020-04-18 16:06:28,579 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-18 16:06:28,579 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:95, output treesize:48 [2020-04-18 16:06:28,604 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:06:28,609 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:06:28,616 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-04-18 16:06:28,616 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:06:28,622 INFO L377 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 15 treesize of output 11 [2020-04-18 16:06:28,623 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-04-18 16:06:28,654 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:06:28,655 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-04-18 16:06:28,655 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:77, output treesize:47 [2020-04-18 16:06:28,800 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2020-04-18 16:06:28,801 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:06:28,809 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:06:28,810 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 16:06:28,810 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:34 [2020-04-18 16:06:29,245 WARN L192 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-04-18 16:06:29,255 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:06:29,256 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-04-18 16:06:29,257 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:06:29,273 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:06:29,274 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-04-18 16:06:29,275 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:46, output treesize:19 [2020-04-18 16:06:29,393 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:06:29,393 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 57 [2020-04-18 16:06:29,394 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:06:29,413 INFO L619 ElimStorePlain]: treesize reduction 30, result has 44.4 percent of original size [2020-04-18 16:06:29,413 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 16:06:29,414 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:9 [2020-04-18 16:06:29,435 INFO L343 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2020-04-18 16:06:29,436 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2020-04-18 16:06:29,437 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:06:29,446 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:06:29,447 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 16:06:29,447 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:9 [2020-04-18 16:06:29,450 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2020-04-18 16:06:29,450 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:06:29,452 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:06:29,452 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 16:06:29,452 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2020-04-18 16:06:29,588 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 370 proven. 28 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2020-04-18 16:06:29,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 16:06:29,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 33 [2020-04-18 16:06:29,589 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:06:29,690 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:06:37,227 INFO L259 McrAutomatonBuilder]: Finished intersection with 987 states and 1660 transitions. [2020-04-18 16:06:37,227 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:06:37,978 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 93 times. [2020-04-18 16:06:37,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-04-18 16:06:37,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1119, Unknown=0, NotChecked=0, Total=1260 [2020-04-18 16:06:37,979 INFO L87 Difference]: Start difference. First operand 11273 states and 22185 transitions. Second operand 33 states. [2020-04-18 16:07:03,138 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-04-18 16:07:03,607 WARN L192 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-04-18 16:07:06,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:07:06,174 INFO L93 Difference]: Finished difference Result 18505 states and 36299 transitions. [2020-04-18 16:07:06,174 INFO L276 IsEmpty]: Start isEmpty. Operand 18505 states and 36299 transitions. [2020-04-18 16:07:06,184 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:07:06,185 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [369167929] [2020-04-18 16:07:06,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:07:06,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-04-18 16:07:06,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [369167929] [2020-04-18 16:07:06,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-04-18 16:07:06,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:07:06,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-04-18 16:07:06,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3036, Invalid=16146, Unknown=0, NotChecked=0, Total=19182 [2020-04-18 16:07:06,190 INFO L87 Difference]: Start difference. First operand 3759 states and 8478 transitions. Second operand 35 states. [2020-04-18 16:07:11,824 WARN L192 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-04-18 16:07:20,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:07:20,701 INFO L93 Difference]: Finished difference Result 12013 states and 27331 transitions. [2020-04-18 16:07:20,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2020-04-18 16:07:20,702 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 312 [2020-04-18 16:07:20,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:07:20,717 INFO L225 Difference]: With dead ends: 12013 [2020-04-18 16:07:20,717 INFO L226 Difference]: Without dead ends: 12013 [2020-04-18 16:07:20,728 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1506 GetRequests, 1206 SyntacticMatches, 0 SemanticMatches, 300 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38561 ImplicationChecksByTransitivity, 18.4s TimeCoverageRelationStatistics Valid=10469, Invalid=80433, Unknown=0, NotChecked=0, Total=90902 [2020-04-18 16:07:20,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12013 states. [2020-04-18 16:07:20,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12013 to 8775. [2020-04-18 16:07:20,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8775 states. [2020-04-18 16:07:20,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8775 states to 8775 states and 19884 transitions. [2020-04-18 16:07:20,899 INFO L78 Accepts]: Start accepts. Automaton has 8775 states and 19884 transitions. Word has length 312 [2020-04-18 16:07:20,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:07:20,899 INFO L479 AbstractCegarLoop]: Abstraction has 8775 states and 19884 transitions. [2020-04-18 16:07:20,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-04-18 16:07:20,899 INFO L276 IsEmpty]: Start isEmpty. Operand 8775 states and 19884 transitions. [2020-04-18 16:07:20,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-04-18 16:07:20,912 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:07:20,912 INFO L425 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:07:21,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:07:21,118 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:07:21,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:07:21,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1142930193, now seen corresponding path program 1 times [2020-04-18 16:07:21,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:07:21,118 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1118386326] [2020-04-18 16:07:21,136 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:07:21,501 INFO L259 McrAutomatonBuilder]: Finished intersection with 13151 states and 25951 transitions. [2020-04-18 16:07:21,526 INFO L276 IsEmpty]: Start isEmpty. Operand 13151 states. [2020-04-18 16:07:21,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-04-18 16:07:21,542 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:07:21,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:07:21,542 INFO L82 PathProgramCache]: Analyzing trace with hash 582621539, now seen corresponding path program 2 times [2020-04-18 16:07:21,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:07:21,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600389588] [2020-04-18 16:07:21,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:07:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:07:21,674 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2020-04-18 16:07:21,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600389588] [2020-04-18 16:07:21,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:07:21,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:07:21,675 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:07:22,193 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:07:37,308 INFO L259 McrAutomatonBuilder]: Finished intersection with 1706 states and 3061 transitions. [2020-04-18 16:07:37,308 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:07:37,326 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 16:07:37,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 16:07:37,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 16:07:37,326 INFO L87 Difference]: Start difference. First operand 13151 states. Second operand 4 states. [2020-04-18 16:07:37,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:07:37,374 INFO L93 Difference]: Finished difference Result 13197 states and 25996 transitions. [2020-04-18 16:07:37,374 INFO L276 IsEmpty]: Start isEmpty. Operand 13197 states and 25996 transitions. [2020-04-18 16:07:37,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-04-18 16:07:37,383 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 16:07:37,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:07:37,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1059772501, now seen corresponding path program 3 times [2020-04-18 16:07:37,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:07:37,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273873533] [2020-04-18 16:07:37,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:07:37,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:07:37,741 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 0 proven. 800 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:07:37,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273873533] [2020-04-18 16:07:37,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341949140] [2020-04-18 16:07:37,742 INFO L92 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 [2020-04-18 16:07:37,903 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-04-18 16:07:37,903 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 16:07:37,905 INFO L264 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 40 conjunts are in the unsatisfiable core [2020-04-18 16:07:37,911 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 16:07:37,915 INFO L377 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 [2020-04-18 16:07:37,915 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:07:37,917 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:07:37,917 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-04-18 16:07:37,917 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-04-18 16:07:37,936 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:07:37,936 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 15 [2020-04-18 16:07:37,937 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:07:37,939 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:07:37,939 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-04-18 16:07:37,939 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2020-04-18 16:07:38,010 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2020-04-18 16:07:38,010 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:07:38,014 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:07:38,014 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 16:07:38,014 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2020-04-18 16:07:38,038 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-04-18 16:07:38,039 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:07:38,046 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:07:38,046 INFO L539 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 16:07:38,047 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:29, output treesize:9 [2020-04-18 16:07:38,366 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 16:07:38,382 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:07:38,382 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 57 [2020-04-18 16:07:38,383 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:07:38,409 INFO L619 ElimStorePlain]: treesize reduction 30, result has 50.0 percent of original size [2020-04-18 16:07:38,410 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 16:07:38,410 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:40, output treesize:16 [2020-04-18 16:07:38,414 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 16:07:38,415 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-04-18 16:07:38,415 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:07:38,425 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:07:38,426 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 16:07:38,426 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2020-04-18 16:07:38,432 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2020-04-18 16:07:38,433 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 16:07:38,438 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:07:38,438 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 16:07:38,438 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:3 [2020-04-18 16:07:38,559 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 196 proven. 151 refuted. 0 times theorem prover too weak. 453 trivial. 0 not checked. [2020-04-18 16:07:38,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 16:07:38,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 12] total 29 [2020-04-18 16:07:38,560 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:07:38,684 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:07:47,869 INFO L259 McrAutomatonBuilder]: Finished intersection with 1135 states and 1919 transitions. [2020-04-18 16:07:47,869 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:07:48,340 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 77 times. [2020-04-18 16:07:48,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-04-18 16:07:48,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=857, Unknown=0, NotChecked=0, Total=992 [2020-04-18 16:07:48,341 INFO L87 Difference]: Start difference. First operand 13197 states and 25996 transitions. Second operand 29 states. [2020-04-18 16:07:53,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:07:53,593 INFO L93 Difference]: Finished difference Result 14982 states and 29447 transitions. [2020-04-18 16:07:53,593 INFO L276 IsEmpty]: Start isEmpty. Operand 14982 states and 29447 transitions. [2020-04-18 16:07:53,601 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:07:53,602 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1118386326] [2020-04-18 16:07:53,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:07:53,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-04-18 16:07:53,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1118386326] [2020-04-18 16:07:53,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-04-18 16:07:53,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:07:53,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-04-18 16:07:53,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=975, Invalid=3315, Unknown=0, NotChecked=0, Total=4290 [2020-04-18 16:07:53,603 INFO L87 Difference]: Start difference. First operand 8775 states and 19884 transitions. Second operand 31 states. [2020-04-18 16:07:59,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:07:59,417 INFO L93 Difference]: Finished difference Result 9786 states and 22146 transitions. [2020-04-18 16:07:59,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2020-04-18 16:07:59,417 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 349 [2020-04-18 16:07:59,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:07:59,430 INFO L225 Difference]: With dead ends: 9786 [2020-04-18 16:07:59,430 INFO L226 Difference]: Without dead ends: 9786 [2020-04-18 16:07:59,433 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1365 GetRequests, 1204 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9479 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=4747, Invalid=21659, Unknown=0, NotChecked=0, Total=26406 [2020-04-18 16:07:59,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9786 states. [2020-04-18 16:07:59,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9786 to 7299. [2020-04-18 16:07:59,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7299 states. [2020-04-18 16:07:59,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7299 states to 7299 states and 16479 transitions. [2020-04-18 16:07:59,579 INFO L78 Accepts]: Start accepts. Automaton has 7299 states and 16479 transitions. Word has length 349 [2020-04-18 16:07:59,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:07:59,579 INFO L479 AbstractCegarLoop]: Abstraction has 7299 states and 16479 transitions. [2020-04-18 16:07:59,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-04-18 16:07:59,579 INFO L276 IsEmpty]: Start isEmpty. Operand 7299 states and 16479 transitions. [2020-04-18 16:07:59,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2020-04-18 16:07:59,590 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:07:59,590 INFO L425 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:07:59,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:07:59,795 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:07:59,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:07:59,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1071444781, now seen corresponding path program 4 times [2020-04-18 16:07:59,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:07:59,796 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [965498895] [2020-04-18 16:07:59,817 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:08:00,462 INFO L259 McrAutomatonBuilder]: Finished intersection with 15075 states and 29762 transitions. [2020-04-18 16:08:00,490 INFO L276 IsEmpty]: Start isEmpty. Operand 15075 states. [2020-04-18 16:08:00,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2020-04-18 16:08:00,516 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:08:00,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:08:00,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1192177237, now seen corresponding path program 5 times [2020-04-18 16:08:00,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:08:00,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819522291] [2020-04-18 16:08:00,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:08:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:08:00,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1037 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2020-04-18 16:08:00,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819522291] [2020-04-18 16:08:00,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:08:00,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:08:00,691 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:08:00,935 INFO L256 McrAutomatonBuilder]: Started intersection.