/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread/stack-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 10:48:50,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 10:48:50,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 10:48:50,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 10:48:50,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 10:48:50,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 10:48:50,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 10:48:50,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 10:48:50,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 10:48:50,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 10:48:50,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 10:48:50,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 10:48:50,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 10:48:50,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 10:48:50,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 10:48:50,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 10:48:50,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 10:48:50,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 10:48:50,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 10:48:50,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 10:48:50,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 10:48:50,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 10:48:50,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 10:48:50,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 10:48:50,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 10:48:50,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 10:48:50,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 10:48:50,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 10:48:50,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 10:48:50,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 10:48:50,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 10:48:50,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 10:48:50,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 10:48:50,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 10:48:50,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 10:48:50,579 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 10:48:50,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 10:48:50,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 10:48:50,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 10:48:50,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 10:48:50,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 10:48:50,582 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-16 10:48:50,606 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 10:48:50,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 10:48:50,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 10:48:50,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 10:48:50,608 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 10:48:50,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 10:48:50,608 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 10:48:50,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 10:48:50,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 10:48:50,609 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 10:48:50,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 10:48:50,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 10:48:50,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 10:48:50,610 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 10:48:50,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 10:48:50,610 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 10:48:50,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 10:48:50,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 10:48:50,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 10:48:50,611 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 10:48:50,611 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 10:48:50,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 10:48:50,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 10:48:50,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 10:48:50,612 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 10:48:50,612 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 10:48:50,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 10:48:50,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 10:48:50,613 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 10:48:50,613 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 10:48:50,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 10:48:50,923 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 10:48:50,926 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 10:48:50,928 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 10:48:50,928 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 10:48:50,929 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack-1.i [2020-10-16 10:48:50,994 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb9be356b/23adf6095a2e41979ea3d1215c60ea0c/FLAG61858fa0e [2020-10-16 10:48:51,605 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 10:48:51,605 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread/stack-1.i [2020-10-16 10:48:51,625 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb9be356b/23adf6095a2e41979ea3d1215c60ea0c/FLAG61858fa0e [2020-10-16 10:48:51,903 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb9be356b/23adf6095a2e41979ea3d1215c60ea0c [2020-10-16 10:48:51,912 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 10:48:51,914 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 10:48:51,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 10:48:51,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 10:48:51,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 10:48:51,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:48:51" (1/1) ... [2020-10-16 10:48:51,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e86d97c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:51, skipping insertion in model container [2020-10-16 10:48:51,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:48:51" (1/1) ... [2020-10-16 10:48:51,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 10:48:52,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 10:48:52,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 10:48:52,618 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 10:48:52,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 10:48:52,859 INFO L208 MainTranslator]: Completed translation [2020-10-16 10:48:52,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:52 WrapperNode [2020-10-16 10:48:52,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 10:48:52,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 10:48:52,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 10:48:52,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 10:48:52,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:52" (1/1) ... [2020-10-16 10:48:52,909 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:52" (1/1) ... [2020-10-16 10:48:52,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 10:48:52,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 10:48:52,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 10:48:52,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 10:48:52,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:52" (1/1) ... [2020-10-16 10:48:52,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:52" (1/1) ... [2020-10-16 10:48:52,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:52" (1/1) ... [2020-10-16 10:48:52,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:52" (1/1) ... [2020-10-16 10:48:52,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:52" (1/1) ... [2020-10-16 10:48:52,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:52" (1/1) ... [2020-10-16 10:48:52,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:52" (1/1) ... [2020-10-16 10:48:52,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 10:48:52,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 10:48:52,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 10:48:52,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 10:48:52,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:52" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 10:48:53,074 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-16 10:48:53,075 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-16 10:48:53,075 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-16 10:48:53,075 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-16 10:48:53,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 10:48:53,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 10:48:53,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 10:48:53,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 10:48:53,076 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 10:48:53,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 10:48:53,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 10:48:53,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 10:48:53,079 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 10:48:53,583 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 10:48:53,583 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-10-16 10:48:53,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:48:53 BoogieIcfgContainer [2020-10-16 10:48:53,586 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 10:48:53,587 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 10:48:53,588 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 10:48:53,591 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 10:48:53,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:48:51" (1/3) ... [2020-10-16 10:48:53,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bfe91ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:48:53, skipping insertion in model container [2020-10-16 10:48:53,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:48:52" (2/3) ... [2020-10-16 10:48:53,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bfe91ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:48:53, skipping insertion in model container [2020-10-16 10:48:53,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:48:53" (3/3) ... [2020-10-16 10:48:53,595 INFO L111 eAbstractionObserver]: Analyzing ICFG stack-1.i [2020-10-16 10:48:53,608 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 10:48:53,608 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 10:48:53,616 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 10:48:53,617 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 10:48:53,654 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,655 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,655 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,655 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,675 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,675 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,676 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,676 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,676 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,676 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,677 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,677 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,677 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,677 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,678 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,678 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,678 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,678 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,679 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,679 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,679 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,679 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,680 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,680 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,680 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,680 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,680 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,681 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,681 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,681 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,681 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,681 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,682 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,682 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,682 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,682 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,682 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,683 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,683 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,683 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,683 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,684 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,684 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,684 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,684 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,685 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,685 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,685 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,685 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,685 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,686 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,686 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,686 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,686 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,686 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,687 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,687 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,687 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,688 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,688 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,688 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,688 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,688 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,689 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,689 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,689 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,689 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,690 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,691 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,691 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,691 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,691 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,692 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,692 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,692 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,692 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,693 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,693 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,693 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,693 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,694 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,694 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,694 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,694 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,695 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,695 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,695 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,695 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,696 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,696 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,696 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,696 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,696 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,697 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,697 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,697 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,697 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,698 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,698 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,698 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,698 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,699 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,699 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,699 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,699 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,699 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,700 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,700 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,700 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,700 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,701 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,701 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,701 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,701 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,702 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,702 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,702 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,702 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,702 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,703 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,703 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,703 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,703 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,707 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,708 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,708 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,708 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,708 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,709 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,709 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,709 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,709 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,710 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,710 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,710 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,710 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,710 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,711 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,711 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,711 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,711 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,712 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,712 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,712 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,712 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,712 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,719 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,719 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,720 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,720 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,720 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,720 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,720 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,721 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,721 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,721 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,721 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,722 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,722 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,722 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,722 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,722 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,723 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,723 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:48:53,730 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-16 10:48:53,751 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 10:48:53,782 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 10:48:53,782 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 10:48:53,783 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 10:48:53,783 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 10:48:53,783 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 10:48:53,783 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 10:48:53,783 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 10:48:53,783 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 10:48:53,803 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 10:48:53,807 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 142 transitions, 306 flow [2020-10-16 10:48:53,810 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 142 transitions, 306 flow [2020-10-16 10:48:53,814 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 137 places, 142 transitions, 306 flow [2020-10-16 10:48:53,950 INFO L129 PetriNetUnfolder]: 11/142 cut-off events. [2020-10-16 10:48:53,951 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 10:48:53,964 INFO L80 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 142 events. 11/142 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 344 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 106. Up to 3 conditions per place. [2020-10-16 10:48:53,973 INFO L117 LiptonReduction]: Number of co-enabled transitions 5744 [2020-10-16 10:48:56,705 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2020-10-16 10:48:56,823 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-16 10:48:57,441 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 121 [2020-10-16 10:48:57,690 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-16 10:48:57,757 INFO L132 LiptonReduction]: Checked pairs total: 10078 [2020-10-16 10:48:57,757 INFO L134 LiptonReduction]: Total number of compositions: 129 [2020-10-16 10:48:57,768 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 40 transitions, 102 flow [2020-10-16 10:48:57,845 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 331 states. [2020-10-16 10:48:57,848 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states. [2020-10-16 10:48:57,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-16 10:48:57,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:57,861 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 10:48:57,862 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:48:57,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:57,869 INFO L82 PathProgramCache]: Analyzing trace with hash 89961792, now seen corresponding path program 1 times [2020-10-16 10:48:57,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:57,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042460799] [2020-10-16 10:48:57,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:58,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:58,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042460799] [2020-10-16 10:48:58,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:58,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 10:48:58,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768104355] [2020-10-16 10:48:58,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 10:48:58,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:58,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 10:48:58,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:48:58,133 INFO L87 Difference]: Start difference. First operand 331 states. Second operand 3 states. [2020-10-16 10:48:58,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:58,216 INFO L93 Difference]: Finished difference Result 504 states and 1247 transitions. [2020-10-16 10:48:58,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 10:48:58,218 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-16 10:48:58,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:58,243 INFO L225 Difference]: With dead ends: 504 [2020-10-16 10:48:58,243 INFO L226 Difference]: Without dead ends: 460 [2020-10-16 10:48:58,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:48:58,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2020-10-16 10:48:58,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 420. [2020-10-16 10:48:58,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2020-10-16 10:48:58,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 1095 transitions. [2020-10-16 10:48:58,348 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 1095 transitions. Word has length 6 [2020-10-16 10:48:58,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:58,348 INFO L481 AbstractCegarLoop]: Abstraction has 420 states and 1095 transitions. [2020-10-16 10:48:58,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 10:48:58,349 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 1095 transitions. [2020-10-16 10:48:58,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 10:48:58,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:58,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:58,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 10:48:58,351 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:48:58,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:58,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1286121651, now seen corresponding path program 1 times [2020-10-16 10:48:58,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:58,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487435885] [2020-10-16 10:48:58,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:58,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:58,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:58,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487435885] [2020-10-16 10:48:58,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:58,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 10:48:58,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23715340] [2020-10-16 10:48:58,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 10:48:58,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:58,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 10:48:58,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:48:58,445 INFO L87 Difference]: Start difference. First operand 420 states and 1095 transitions. Second operand 3 states. [2020-10-16 10:48:58,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:58,466 INFO L93 Difference]: Finished difference Result 464 states and 1205 transitions. [2020-10-16 10:48:58,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 10:48:58,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-16 10:48:58,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:58,474 INFO L225 Difference]: With dead ends: 464 [2020-10-16 10:48:58,474 INFO L226 Difference]: Without dead ends: 464 [2020-10-16 10:48:58,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:48:58,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-16 10:48:58,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2020-10-16 10:48:58,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2020-10-16 10:48:58,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 1205 transitions. [2020-10-16 10:48:58,509 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 1205 transitions. Word has length 10 [2020-10-16 10:48:58,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:58,509 INFO L481 AbstractCegarLoop]: Abstraction has 464 states and 1205 transitions. [2020-10-16 10:48:58,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 10:48:58,510 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 1205 transitions. [2020-10-16 10:48:58,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 10:48:58,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:58,512 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:58,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 10:48:58,512 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:48:58,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:58,512 INFO L82 PathProgramCache]: Analyzing trace with hash 554739665, now seen corresponding path program 1 times [2020-10-16 10:48:58,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:58,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002196101] [2020-10-16 10:48:58,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:58,692 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:58,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002196101] [2020-10-16 10:48:58,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365103735] [2020-10-16 10:48:58,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 10:48:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:58,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-16 10:48:58,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 10:48:58,863 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:58,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 10:48:58,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-16 10:48:58,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555170684] [2020-10-16 10:48:58,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 10:48:58,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:58,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 10:48:58,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-16 10:48:58,866 INFO L87 Difference]: Start difference. First operand 464 states and 1205 transitions. Second operand 7 states. [2020-10-16 10:48:58,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:58,963 INFO L93 Difference]: Finished difference Result 866 states and 2152 transitions. [2020-10-16 10:48:58,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 10:48:58,964 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-10-16 10:48:58,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:58,971 INFO L225 Difference]: With dead ends: 866 [2020-10-16 10:48:58,972 INFO L226 Difference]: Without dead ends: 851 [2020-10-16 10:48:58,972 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-16 10:48:58,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2020-10-16 10:48:58,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 575. [2020-10-16 10:48:59,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 575 states. [2020-10-16 10:48:59,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 1484 transitions. [2020-10-16 10:48:59,004 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 1484 transitions. Word has length 13 [2020-10-16 10:48:59,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:59,004 INFO L481 AbstractCegarLoop]: Abstraction has 575 states and 1484 transitions. [2020-10-16 10:48:59,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 10:48:59,005 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 1484 transitions. [2020-10-16 10:48:59,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 10:48:59,007 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:59,008 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:59,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-16 10:48:59,222 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:48:59,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:59,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1825595924, now seen corresponding path program 1 times [2020-10-16 10:48:59,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:59,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206770294] [2020-10-16 10:48:59,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:59,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:59,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206770294] [2020-10-16 10:48:59,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:59,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 10:48:59,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414610894] [2020-10-16 10:48:59,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 10:48:59,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:59,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 10:48:59,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:48:59,310 INFO L87 Difference]: Start difference. First operand 575 states and 1484 transitions. Second operand 3 states. [2020-10-16 10:48:59,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:59,332 INFO L93 Difference]: Finished difference Result 304 states and 670 transitions. [2020-10-16 10:48:59,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 10:48:59,333 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-16 10:48:59,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:59,335 INFO L225 Difference]: With dead ends: 304 [2020-10-16 10:48:59,335 INFO L226 Difference]: Without dead ends: 304 [2020-10-16 10:48:59,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:48:59,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-10-16 10:48:59,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 294. [2020-10-16 10:48:59,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-10-16 10:48:59,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 643 transitions. [2020-10-16 10:48:59,345 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 643 transitions. Word has length 16 [2020-10-16 10:48:59,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:59,347 INFO L481 AbstractCegarLoop]: Abstraction has 294 states and 643 transitions. [2020-10-16 10:48:59,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 10:48:59,347 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 643 transitions. [2020-10-16 10:48:59,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 10:48:59,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:59,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:59,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 10:48:59,350 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:48:59,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:59,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1573705314, now seen corresponding path program 1 times [2020-10-16 10:48:59,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:59,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119975761] [2020-10-16 10:48:59,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:59,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:59,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119975761] [2020-10-16 10:48:59,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:48:59,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 10:48:59,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252042240] [2020-10-16 10:48:59,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 10:48:59,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:59,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 10:48:59,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:48:59,392 INFO L87 Difference]: Start difference. First operand 294 states and 643 transitions. Second operand 3 states. [2020-10-16 10:48:59,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:59,429 INFO L93 Difference]: Finished difference Result 372 states and 811 transitions. [2020-10-16 10:48:59,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 10:48:59,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-16 10:48:59,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:59,432 INFO L225 Difference]: With dead ends: 372 [2020-10-16 10:48:59,433 INFO L226 Difference]: Without dead ends: 372 [2020-10-16 10:48:59,433 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:48:59,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-10-16 10:48:59,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 295. [2020-10-16 10:48:59,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-10-16 10:48:59,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 647 transitions. [2020-10-16 10:48:59,443 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 647 transitions. Word has length 17 [2020-10-16 10:48:59,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:59,443 INFO L481 AbstractCegarLoop]: Abstraction has 295 states and 647 transitions. [2020-10-16 10:48:59,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 10:48:59,444 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 647 transitions. [2020-10-16 10:48:59,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 10:48:59,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:59,445 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-10-16 10:48:59,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 10:48:59,445 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:48:59,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:59,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1192042464, now seen corresponding path program 2 times [2020-10-16 10:48:59,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:59,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906280329] [2020-10-16 10:48:59,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:48:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:48:59,528 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:59,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906280329] [2020-10-16 10:48:59,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036022530] [2020-10-16 10:48:59,529 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 10:48:59,615 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-16 10:48:59,615 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-16 10:48:59,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-16 10:48:59,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 10:48:59,649 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:48:59,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 10:48:59,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-16 10:48:59,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282642220] [2020-10-16 10:48:59,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 10:48:59,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:48:59,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 10:48:59,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-16 10:48:59,651 INFO L87 Difference]: Start difference. First operand 295 states and 647 transitions. Second operand 9 states. [2020-10-16 10:48:59,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:48:59,744 INFO L93 Difference]: Finished difference Result 542 states and 1156 transitions. [2020-10-16 10:48:59,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 10:48:59,745 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-10-16 10:48:59,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:48:59,748 INFO L225 Difference]: With dead ends: 542 [2020-10-16 10:48:59,749 INFO L226 Difference]: Without dead ends: 542 [2020-10-16 10:48:59,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-10-16 10:48:59,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-10-16 10:48:59,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 372. [2020-10-16 10:48:59,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2020-10-16 10:48:59,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 816 transitions. [2020-10-16 10:48:59,762 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 816 transitions. Word has length 20 [2020-10-16 10:48:59,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:48:59,762 INFO L481 AbstractCegarLoop]: Abstraction has 372 states and 816 transitions. [2020-10-16 10:48:59,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 10:48:59,763 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 816 transitions. [2020-10-16 10:48:59,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 10:48:59,764 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:48:59,764 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:48:59,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 10:48:59,978 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:48:59,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:48:59,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1105063959, now seen corresponding path program 1 times [2020-10-16 10:48:59,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:48:59,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93359481] [2020-10-16 10:48:59,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:49:00,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:49:00,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:49:00,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93359481] [2020-10-16 10:49:00,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:49:00,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 10:49:00,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234169677] [2020-10-16 10:49:00,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 10:49:00,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:49:00,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 10:49:00,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-16 10:49:00,407 INFO L87 Difference]: Start difference. First operand 372 states and 816 transitions. Second operand 14 states. [2020-10-16 10:49:01,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:49:01,664 INFO L93 Difference]: Finished difference Result 703 states and 1483 transitions. [2020-10-16 10:49:01,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-16 10:49:01,665 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 21 [2020-10-16 10:49:01,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:49:01,669 INFO L225 Difference]: With dead ends: 703 [2020-10-16 10:49:01,669 INFO L226 Difference]: Without dead ends: 631 [2020-10-16 10:49:01,670 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=136, Invalid=566, Unknown=0, NotChecked=0, Total=702 [2020-10-16 10:49:01,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2020-10-16 10:49:01,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 422. [2020-10-16 10:49:01,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-10-16 10:49:01,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 927 transitions. [2020-10-16 10:49:01,684 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 927 transitions. Word has length 21 [2020-10-16 10:49:01,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:49:01,684 INFO L481 AbstractCegarLoop]: Abstraction has 422 states and 927 transitions. [2020-10-16 10:49:01,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 10:49:01,685 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 927 transitions. [2020-10-16 10:49:01,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-16 10:49:01,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:49:01,686 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2020-10-16 10:49:01,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 10:49:01,686 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:49:01,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:49:01,687 INFO L82 PathProgramCache]: Analyzing trace with hash 790528241, now seen corresponding path program 3 times [2020-10-16 10:49:01,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:49:01,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87509397] [2020-10-16 10:49:01,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:49:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:49:01,811 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:49:01,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87509397] [2020-10-16 10:49:01,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519627541] [2020-10-16 10:49:01,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 10:49:01,960 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-16 10:49:01,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-16 10:49:01,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-16 10:49:01,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 10:49:01,996 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:49:01,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 10:49:01,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2020-10-16 10:49:01,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367698188] [2020-10-16 10:49:01,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-16 10:49:01,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:49:01,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-16 10:49:01,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-16 10:49:01,999 INFO L87 Difference]: Start difference. First operand 422 states and 927 transitions. Second operand 11 states. [2020-10-16 10:49:02,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:49:02,120 INFO L93 Difference]: Finished difference Result 759 states and 1604 transitions. [2020-10-16 10:49:02,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 10:49:02,120 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-16 10:49:02,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:49:02,125 INFO L225 Difference]: With dead ends: 759 [2020-10-16 10:49:02,125 INFO L226 Difference]: Without dead ends: 759 [2020-10-16 10:49:02,126 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-10-16 10:49:02,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2020-10-16 10:49:02,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 499. [2020-10-16 10:49:02,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2020-10-16 10:49:02,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 1096 transitions. [2020-10-16 10:49:02,141 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 1096 transitions. Word has length 27 [2020-10-16 10:49:02,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:49:02,141 INFO L481 AbstractCegarLoop]: Abstraction has 499 states and 1096 transitions. [2020-10-16 10:49:02,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-16 10:49:02,141 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 1096 transitions. [2020-10-16 10:49:02,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-16 10:49:02,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:49:02,143 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:49:02,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 10:49:02,359 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:49:02,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:49:02,359 INFO L82 PathProgramCache]: Analyzing trace with hash -859233366, now seen corresponding path program 2 times [2020-10-16 10:49:02,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:49:02,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902392523] [2020-10-16 10:49:02,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:49:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:49:02,760 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:49:02,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902392523] [2020-10-16 10:49:02,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587692653] [2020-10-16 10:49:02,761 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 10:49:02,829 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-16 10:49:02,829 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-16 10:49:02,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 43 conjunts are in the unsatisfiable core [2020-10-16 10:49:02,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 10:49:03,038 INFO L384 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 19 treesize of output 15 [2020-10-16 10:49:03,039 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-16 10:49:03,061 INFO L625 ElimStorePlain]: treesize reduction 3, result has 92.3 percent of original size [2020-10-16 10:49:03,067 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-16 10:49:03,068 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:43, output treesize:50 [2020-10-16 10:49:03,428 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 10:49:03,460 INFO L384 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 76 treesize of output 28 [2020-10-16 10:49:03,595 INFO L721 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-16 10:49:03,889 INFO L721 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-16 10:49:04,457 INFO L721 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-16 10:49:09,010 INFO L545 ElimStorePlain]: Start of recursive call 2: 18 dim-0 vars, End of recursive call: 18 dim-0 vars, and 1 xjuncts. [2020-10-16 10:49:09,029 INFO L384 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 79 treesize of output 31 [2020-10-16 10:49:09,150 INFO L545 ElimStorePlain]: Start of recursive call 3: 6 dim-0 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2020-10-16 10:49:10,364 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 202 DAG size of output: 120 [2020-10-16 10:49:10,366 INFO L625 ElimStorePlain]: treesize reduction 263, result has 59.3 percent of original size [2020-10-16 10:49:11,646 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 18 dim-0 vars, and 1 xjuncts. [2020-10-16 10:49:11,647 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:156, output treesize:383 [2020-10-16 10:49:13,519 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-16 10:49:13,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-16 10:49:13,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [14] total 26 [2020-10-16 10:49:13,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619677788] [2020-10-16 10:49:13,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-16 10:49:13,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:49:13,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-16 10:49:13,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=633, Unknown=0, NotChecked=0, Total=702 [2020-10-16 10:49:13,523 INFO L87 Difference]: Start difference. First operand 499 states and 1096 transitions. Second operand 13 states. [2020-10-16 10:49:15,972 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-16 10:49:16,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:49:16,958 INFO L93 Difference]: Finished difference Result 850 states and 1830 transitions. [2020-10-16 10:49:16,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-16 10:49:16,958 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 28 [2020-10-16 10:49:16,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:49:16,963 INFO L225 Difference]: With dead ends: 850 [2020-10-16 10:49:16,964 INFO L226 Difference]: Without dead ends: 850 [2020-10-16 10:49:16,965 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=247, Invalid=1915, Unknown=0, NotChecked=0, Total=2162 [2020-10-16 10:49:16,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2020-10-16 10:49:16,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 563. [2020-10-16 10:49:16,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2020-10-16 10:49:16,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 1242 transitions. [2020-10-16 10:49:16,982 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 1242 transitions. Word has length 28 [2020-10-16 10:49:16,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:49:16,982 INFO L481 AbstractCegarLoop]: Abstraction has 563 states and 1242 transitions. [2020-10-16 10:49:16,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-16 10:49:16,982 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 1242 transitions. [2020-10-16 10:49:16,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-16 10:49:16,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:49:16,984 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:49:17,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 10:49:17,198 INFO L429 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:49:17,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:49:17,198 INFO L82 PathProgramCache]: Analyzing trace with hash 585117152, now seen corresponding path program 1 times [2020-10-16 10:49:17,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:49:17,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873322083] [2020-10-16 10:49:17,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:49:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:49:17,314 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 10:49:17,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873322083] [2020-10-16 10:49:17,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844020179] [2020-10-16 10:49:17,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 10:49:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:49:17,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-16 10:49:17,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 10:49:17,441 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 10:49:17,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 10:49:17,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-16 10:49:17,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895660983] [2020-10-16 10:49:17,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 10:49:17,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:49:17,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 10:49:17,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-16 10:49:17,445 INFO L87 Difference]: Start difference. First operand 563 states and 1242 transitions. Second operand 10 states. [2020-10-16 10:49:17,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:49:17,577 INFO L93 Difference]: Finished difference Result 912 states and 1935 transitions. [2020-10-16 10:49:17,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 10:49:17,577 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2020-10-16 10:49:17,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:49:17,583 INFO L225 Difference]: With dead ends: 912 [2020-10-16 10:49:17,583 INFO L226 Difference]: Without dead ends: 912 [2020-10-16 10:49:17,584 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-16 10:49:17,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2020-10-16 10:49:17,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 607. [2020-10-16 10:49:17,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2020-10-16 10:49:17,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 1366 transitions. [2020-10-16 10:49:17,601 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 1366 transitions. Word has length 31 [2020-10-16 10:49:17,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:49:17,601 INFO L481 AbstractCegarLoop]: Abstraction has 607 states and 1366 transitions. [2020-10-16 10:49:17,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 10:49:17,601 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 1366 transitions. [2020-10-16 10:49:17,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-16 10:49:17,603 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:49:17,603 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2020-10-16 10:49:17,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-16 10:49:17,818 INFO L429 AbstractCegarLoop]: === Iteration 11 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:49:17,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:49:17,819 INFO L82 PathProgramCache]: Analyzing trace with hash 225739520, now seen corresponding path program 4 times [2020-10-16 10:49:17,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:49:17,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402757696] [2020-10-16 10:49:17,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:49:17,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:49:17,914 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:49:17,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402757696] [2020-10-16 10:49:17,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628768081] [2020-10-16 10:49:17,915 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 10:49:18,006 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-16 10:49:18,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-16 10:49:18,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-16 10:49:18,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 10:49:18,042 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:49:18,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 10:49:18,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 12 [2020-10-16 10:49:18,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667542711] [2020-10-16 10:49:18,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-16 10:49:18,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:49:18,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-16 10:49:18,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-16 10:49:18,044 INFO L87 Difference]: Start difference. First operand 607 states and 1366 transitions. Second operand 13 states. [2020-10-16 10:49:18,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:49:18,240 INFO L93 Difference]: Finished difference Result 984 states and 2121 transitions. [2020-10-16 10:49:18,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 10:49:18,241 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 34 [2020-10-16 10:49:18,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:49:18,246 INFO L225 Difference]: With dead ends: 984 [2020-10-16 10:49:18,246 INFO L226 Difference]: Without dead ends: 984 [2020-10-16 10:49:18,250 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2020-10-16 10:49:18,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2020-10-16 10:49:18,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 684. [2020-10-16 10:49:18,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 684 states. [2020-10-16 10:49:18,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 1535 transitions. [2020-10-16 10:49:18,269 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 1535 transitions. Word has length 34 [2020-10-16 10:49:18,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:49:18,269 INFO L481 AbstractCegarLoop]: Abstraction has 684 states and 1535 transitions. [2020-10-16 10:49:18,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-16 10:49:18,269 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 1535 transitions. [2020-10-16 10:49:18,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-16 10:49:18,273 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:49:18,274 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:49:18,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 10:49:18,489 INFO L429 AbstractCegarLoop]: === Iteration 12 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:49:18,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:49:18,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1848776679, now seen corresponding path program 1 times [2020-10-16 10:49:18,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:49:18,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717569392] [2020-10-16 10:49:18,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:49:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:49:19,239 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:49:19,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717569392] [2020-10-16 10:49:19,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619490527] [2020-10-16 10:49:19,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 10:49:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:49:19,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 60 conjunts are in the unsatisfiable core [2020-10-16 10:49:19,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 10:49:19,502 INFO L384 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 19 treesize of output 15 [2020-10-16 10:49:19,502 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-16 10:49:19,527 INFO L625 ElimStorePlain]: treesize reduction 3, result has 92.3 percent of original size [2020-10-16 10:49:19,529 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-16 10:49:19,529 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:43, output treesize:50 [2020-10-16 10:49:19,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-16 10:49:19,905 INFO L384 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 69 treesize of output 41 [2020-10-16 10:49:19,906 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-16 10:49:19,925 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 10:49:19,927 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-16 10:49:19,928 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:75, output treesize:54 [2020-10-16 10:49:20,431 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 10:49:20,451 INFO L384 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 79 treesize of output 31 [2020-10-16 10:49:20,464 INFO L545 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-16 10:49:20,468 INFO L384 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 76 treesize of output 28 [2020-10-16 10:49:20,514 INFO L721 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-16 10:49:20,688 INFO L721 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-16 10:49:21,062 INFO L721 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-16 10:49:21,392 INFO L721 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-16 10:49:21,959 INFO L721 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-16 10:49:22,620 INFO L721 QuantifierPusher]: Run 60 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-16 10:52:14,600 INFO L545 ElimStorePlain]: Start of recursive call 3: 40 dim-0 vars, End of recursive call: 40 dim-0 vars, and 1 xjuncts. [2020-10-16 10:52:20,127 WARN L193 SmtUtils]: Spent 5.53 s on a formula simplification. DAG size of input: 294 DAG size of output: 235 [2020-10-16 10:52:20,129 INFO L625 ElimStorePlain]: treesize reduction 276, result has 75.9 percent of original size [2020-10-16 10:52:23,327 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 35 dim-0 vars, and 1 xjuncts. [2020-10-16 10:52:23,328 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:156, output treesize:759 [2020-10-16 10:52:26,994 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-16 10:52:27,007 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:52:27,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 10:52:27,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 36 [2020-10-16 10:52:27,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176183208] [2020-10-16 10:52:27,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-10-16 10:52:27,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:52:27,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-10-16 10:52:27,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1227, Unknown=0, NotChecked=0, Total=1332 [2020-10-16 10:52:27,015 INFO L87 Difference]: Start difference. First operand 684 states and 1535 transitions. Second operand 37 states. [2020-10-16 10:52:28,380 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 38 [2020-10-16 10:52:28,711 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2020-10-16 10:52:29,129 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2020-10-16 10:52:29,356 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-10-16 10:52:29,663 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-10-16 10:52:29,885 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-10-16 10:52:30,618 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-10-16 10:52:32,014 WARN L193 SmtUtils]: Spent 773.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 252 [2020-10-16 10:52:32,265 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2020-10-16 10:52:32,700 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2020-10-16 10:52:33,446 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-10-16 10:52:33,827 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-16 10:52:34,288 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-10-16 10:52:34,832 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2020-10-16 10:52:35,328 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-16 10:52:36,093 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-10-16 10:52:37,659 WARN L193 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 277 [2020-10-16 10:52:37,968 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2020-10-16 10:52:38,545 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2020-10-16 10:52:39,008 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-10-16 10:52:39,511 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2020-10-16 10:52:39,994 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-16 10:52:40,472 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 45 [2020-10-16 10:52:40,851 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2020-10-16 10:52:41,266 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2020-10-16 10:52:41,711 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-16 10:52:42,194 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2020-10-16 10:52:42,591 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2020-10-16 10:52:42,932 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-16 10:52:43,326 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2020-10-16 10:52:43,800 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2020-10-16 10:52:44,131 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2020-10-16 10:52:46,563 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 271 DAG size of output: 269 [2020-10-16 10:52:47,016 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2020-10-16 10:52:47,205 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-10-16 10:52:47,810 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2020-10-16 10:52:48,061 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-16 10:52:48,318 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-10-16 10:52:48,888 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-16 10:52:49,222 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2020-10-16 10:52:49,614 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2020-10-16 10:52:50,357 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-16 10:52:50,976 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-16 10:52:52,611 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-16 10:52:53,450 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-16 10:52:53,646 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-10-16 10:52:54,015 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-10-16 10:52:54,401 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2020-10-16 10:52:54,992 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-16 10:52:55,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:52:55,210 INFO L93 Difference]: Finished difference Result 2296 states and 4900 transitions. [2020-10-16 10:52:55,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2020-10-16 10:52:55,211 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 36 [2020-10-16 10:52:55,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:52:55,222 INFO L225 Difference]: With dead ends: 2296 [2020-10-16 10:52:55,222 INFO L226 Difference]: Without dead ends: 2144 [2020-10-16 10:52:55,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3673 ImplicationChecksByTransitivity, 25.1s TimeCoverageRelationStatistics Valid=1352, Invalid=10420, Unknown=0, NotChecked=0, Total=11772 [2020-10-16 10:52:55,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2144 states. [2020-10-16 10:52:55,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2144 to 850. [2020-10-16 10:52:55,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 850 states. [2020-10-16 10:52:55,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1934 transitions. [2020-10-16 10:52:55,256 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1934 transitions. Word has length 36 [2020-10-16 10:52:55,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:52:55,256 INFO L481 AbstractCegarLoop]: Abstraction has 850 states and 1934 transitions. [2020-10-16 10:52:55,256 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-10-16 10:52:55,257 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1934 transitions. [2020-10-16 10:52:55,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-16 10:52:55,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:52:55,258 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:52:55,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 10:52:55,472 INFO L429 AbstractCegarLoop]: === Iteration 13 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:52:55,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:52:55,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1392133555, now seen corresponding path program 2 times [2020-10-16 10:52:55,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:52:55,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80428785] [2020-10-16 10:52:55,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:52:55,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:52:55,585 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 10:52:55,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80428785] [2020-10-16 10:52:55,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66170854] [2020-10-16 10:52:55,585 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 10:52:55,684 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-16 10:52:55,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-16 10:52:55,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-16 10:52:55,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 10:52:55,716 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 10:52:55,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 10:52:55,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-16 10:52:55,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87110269] [2020-10-16 10:52:55,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 10:52:55,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:52:55,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 10:52:55,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-16 10:52:55,718 INFO L87 Difference]: Start difference. First operand 850 states and 1934 transitions. Second operand 12 states. [2020-10-16 10:52:55,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:52:55,923 INFO L93 Difference]: Finished difference Result 1531 states and 3311 transitions. [2020-10-16 10:52:55,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-16 10:52:55,924 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2020-10-16 10:52:55,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:52:55,930 INFO L225 Difference]: With dead ends: 1531 [2020-10-16 10:52:55,930 INFO L226 Difference]: Without dead ends: 1531 [2020-10-16 10:52:55,931 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-16 10:52:55,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2020-10-16 10:52:55,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 850. [2020-10-16 10:52:55,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 850 states. [2020-10-16 10:52:55,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1934 transitions. [2020-10-16 10:52:55,955 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1934 transitions. Word has length 38 [2020-10-16 10:52:55,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:52:55,955 INFO L481 AbstractCegarLoop]: Abstraction has 850 states and 1934 transitions. [2020-10-16 10:52:55,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 10:52:55,956 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1934 transitions. [2020-10-16 10:52:55,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-16 10:52:55,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:52:55,957 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1] [2020-10-16 10:52:56,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-10-16 10:52:56,173 INFO L429 AbstractCegarLoop]: === Iteration 14 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:52:56,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:52:56,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1525277201, now seen corresponding path program 5 times [2020-10-16 10:52:56,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:52:56,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942317138] [2020-10-16 10:52:56,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:52:56,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:52:56,275 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 56 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:52:56,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942317138] [2020-10-16 10:52:56,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556618036] [2020-10-16 10:52:56,275 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 10:52:56,410 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2020-10-16 10:52:56,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-16 10:52:56,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-16 10:52:56,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 10:52:56,436 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:52:56,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-16 10:52:56,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 9 [2020-10-16 10:52:56,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865942414] [2020-10-16 10:52:56,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 10:52:56,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:52:56,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 10:52:56,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2020-10-16 10:52:56,439 INFO L87 Difference]: Start difference. First operand 850 states and 1934 transitions. Second operand 8 states. [2020-10-16 10:52:56,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:52:56,509 INFO L93 Difference]: Finished difference Result 1901 states and 4130 transitions. [2020-10-16 10:52:56,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 10:52:56,511 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-10-16 10:52:56,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:52:56,518 INFO L225 Difference]: With dead ends: 1901 [2020-10-16 10:52:56,518 INFO L226 Difference]: Without dead ends: 1151 [2020-10-16 10:52:56,519 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2020-10-16 10:52:56,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2020-10-16 10:52:56,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 919. [2020-10-16 10:52:56,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-10-16 10:52:56,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1913 transitions. [2020-10-16 10:52:56,543 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1913 transitions. Word has length 41 [2020-10-16 10:52:56,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:52:56,543 INFO L481 AbstractCegarLoop]: Abstraction has 919 states and 1913 transitions. [2020-10-16 10:52:56,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 10:52:56,544 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1913 transitions. [2020-10-16 10:52:56,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-16 10:52:56,546 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:52:56,546 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:52:56,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 10:52:56,761 INFO L429 AbstractCegarLoop]: === Iteration 15 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:52:56,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:52:56,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1282653762, now seen corresponding path program 3 times [2020-10-16 10:52:56,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:52:56,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333955825] [2020-10-16 10:52:56,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:52:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:52:56,919 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-16 10:52:56,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333955825] [2020-10-16 10:52:56,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159253854] [2020-10-16 10:52:56,919 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 10:52:57,076 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2020-10-16 10:52:57,077 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-16 10:52:57,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-16 10:52:57,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 10:52:57,090 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 43 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-16 10:52:57,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 10:52:57,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 11 [2020-10-16 10:52:57,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729493832] [2020-10-16 10:52:57,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 10:52:57,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:52:57,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 10:52:57,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-16 10:52:57,092 INFO L87 Difference]: Start difference. First operand 919 states and 1913 transitions. Second operand 12 states. [2020-10-16 10:52:57,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:52:57,302 INFO L93 Difference]: Finished difference Result 1454 states and 2944 transitions. [2020-10-16 10:52:57,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 10:52:57,303 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 45 [2020-10-16 10:52:57,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:52:57,308 INFO L225 Difference]: With dead ends: 1454 [2020-10-16 10:52:57,308 INFO L226 Difference]: Without dead ends: 1127 [2020-10-16 10:52:57,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-16 10:52:57,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2020-10-16 10:52:57,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 882. [2020-10-16 10:52:57,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 882 states. [2020-10-16 10:52:57,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1819 transitions. [2020-10-16 10:52:57,331 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1819 transitions. Word has length 45 [2020-10-16 10:52:57,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:52:57,331 INFO L481 AbstractCegarLoop]: Abstraction has 882 states and 1819 transitions. [2020-10-16 10:52:57,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 10:52:57,332 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1819 transitions. [2020-10-16 10:52:57,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-16 10:52:57,336 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:52:57,336 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:52:57,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-10-16 10:52:57,551 INFO L429 AbstractCegarLoop]: === Iteration 16 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:52:57,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:52:57,551 INFO L82 PathProgramCache]: Analyzing trace with hash 2015805632, now seen corresponding path program 4 times [2020-10-16 10:52:57,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:52:57,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600893168] [2020-10-16 10:52:57,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:52:57,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:52:57,695 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 43 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-16 10:52:57,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600893168] [2020-10-16 10:52:57,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183019006] [2020-10-16 10:52:57,696 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 10:52:57,795 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-16 10:52:57,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-16 10:52:57,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-16 10:52:57,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 10:52:57,830 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 43 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-16 10:52:57,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 10:52:57,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-16 10:52:57,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093939806] [2020-10-16 10:52:57,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 10:52:57,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:52:57,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 10:52:57,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-16 10:52:57,832 INFO L87 Difference]: Start difference. First operand 882 states and 1819 transitions. Second operand 12 states. [2020-10-16 10:52:58,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:52:58,017 INFO L93 Difference]: Finished difference Result 1257 states and 2501 transitions. [2020-10-16 10:52:58,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 10:52:58,018 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 45 [2020-10-16 10:52:58,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:52:58,024 INFO L225 Difference]: With dead ends: 1257 [2020-10-16 10:52:58,024 INFO L226 Difference]: Without dead ends: 1177 [2020-10-16 10:52:58,024 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2020-10-16 10:52:58,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2020-10-16 10:52:58,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 778. [2020-10-16 10:52:58,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 778 states. [2020-10-16 10:52:58,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1596 transitions. [2020-10-16 10:52:58,042 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1596 transitions. Word has length 45 [2020-10-16 10:52:58,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:52:58,043 INFO L481 AbstractCegarLoop]: Abstraction has 778 states and 1596 transitions. [2020-10-16 10:52:58,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 10:52:58,043 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1596 transitions. [2020-10-16 10:52:58,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-16 10:52:58,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:52:58,045 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:52:58,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-10-16 10:52:58,251 INFO L429 AbstractCegarLoop]: === Iteration 17 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:52:58,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:52:58,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1958720896, now seen corresponding path program 5 times [2020-10-16 10:52:58,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:52:58,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703619161] [2020-10-16 10:52:58,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:52:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:52:58,375 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 10:52:58,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703619161] [2020-10-16 10:52:58,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521776237] [2020-10-16 10:52:58,376 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 10:52:58,484 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2020-10-16 10:52:58,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-16 10:52:58,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-16 10:52:58,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 10:52:58,517 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 10:52:58,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 10:52:58,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2020-10-16 10:52:58,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320232488] [2020-10-16 10:52:58,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 10:52:58,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:52:58,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 10:52:58,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-16 10:52:58,519 INFO L87 Difference]: Start difference. First operand 778 states and 1596 transitions. Second operand 14 states. [2020-10-16 10:52:58,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:52:58,785 INFO L93 Difference]: Finished difference Result 1374 states and 2723 transitions. [2020-10-16 10:52:58,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-16 10:52:58,786 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 45 [2020-10-16 10:52:58,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:52:58,792 INFO L225 Difference]: With dead ends: 1374 [2020-10-16 10:52:58,792 INFO L226 Difference]: Without dead ends: 1364 [2020-10-16 10:52:58,792 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2020-10-16 10:52:58,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2020-10-16 10:52:58,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 778. [2020-10-16 10:52:58,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 778 states. [2020-10-16 10:52:58,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1596 transitions. [2020-10-16 10:52:58,809 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1596 transitions. Word has length 45 [2020-10-16 10:52:58,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:52:58,809 INFO L481 AbstractCegarLoop]: Abstraction has 778 states and 1596 transitions. [2020-10-16 10:52:58,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 10:52:58,809 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1596 transitions. [2020-10-16 10:52:58,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-16 10:52:58,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:52:58,811 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:52:59,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-10-16 10:52:59,026 INFO L429 AbstractCegarLoop]: === Iteration 18 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:52:59,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:52:59,026 INFO L82 PathProgramCache]: Analyzing trace with hash 579552405, now seen corresponding path program 2 times [2020-10-16 10:52:59,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:52:59,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245339190] [2020-10-16 10:52:59,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:52:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:53:00,318 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:53:00,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245339190] [2020-10-16 10:53:00,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231072299] [2020-10-16 10:53:00,318 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 10:53:00,427 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-16 10:53:00,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-16 10:53:00,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 75 conjunts are in the unsatisfiable core [2020-10-16 10:53:00,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 10:53:00,649 INFO L384 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 19 treesize of output 15 [2020-10-16 10:53:00,649 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-16 10:53:00,683 INFO L625 ElimStorePlain]: treesize reduction 3, result has 92.3 percent of original size [2020-10-16 10:53:00,685 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-16 10:53:00,685 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:43, output treesize:50 [2020-10-16 10:53:01,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-16 10:53:01,238 INFO L384 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 69 treesize of output 41 [2020-10-16 10:53:01,239 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-16 10:53:01,264 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 10:53:01,266 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-16 10:53:01,266 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:75, output treesize:54 [2020-10-16 10:53:01,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-16 10:53:01,751 INFO L384 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 69 treesize of output 41 [2020-10-16 10:53:01,752 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-16 10:53:01,774 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 10:53:01,776 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-16 10:53:01,776 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:75, output treesize:54 [2020-10-16 10:53:02,594 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-10-16 10:53:02,594 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 10:53:02,595 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 10:53:02,600 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 10:53:02,612 INFO L384 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 76 treesize of output 28 [2020-10-16 10:53:02,682 INFO L545 ElimStorePlain]: Start of recursive call 2: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-16 10:53:02,697 INFO L384 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 79 treesize of output 31 [2020-10-16 10:53:02,770 INFO L545 ElimStorePlain]: Start of recursive call 3: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-16 10:53:02,888 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 29 [2020-10-16 10:53:02,889 INFO L625 ElimStorePlain]: treesize reduction 467, result has 10.9 percent of original size [2020-10-16 10:53:02,895 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-16 10:53:02,895 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:156, output treesize:57 [2020-10-16 10:53:03,087 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 2 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:53:03,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 10:53:03,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 48 [2020-10-16 10:53:03,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504198358] [2020-10-16 10:53:03,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 49 states [2020-10-16 10:53:03,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:53:03,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2020-10-16 10:53:03,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=2210, Unknown=0, NotChecked=0, Total=2352 [2020-10-16 10:53:03,089 INFO L87 Difference]: Start difference. First operand 778 states and 1596 transitions. Second operand 49 states. [2020-10-16 10:53:04,133 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2020-10-16 10:53:04,731 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-10-16 10:53:05,124 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2020-10-16 10:53:07,661 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2020-10-16 10:53:07,952 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-10-16 10:53:10,560 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-10-16 10:53:10,849 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 Received shutdown request... [2020-10-16 10:53:17,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-16 10:53:17,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-10-16 10:53:17,892 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-16 10:53:17,897 WARN L235 ceAbstractionStarter]: Timeout [2020-10-16 10:53:17,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 10:53:17 BasicIcfg [2020-10-16 10:53:17,897 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 10:53:17,898 INFO L168 Benchmark]: Toolchain (without parser) took 265985.23 ms. Allocated memory was 139.5 MB in the beginning and 283.6 MB in the end (delta: 144.2 MB). Free memory was 99.5 MB in the beginning and 153.0 MB in the end (delta: -53.5 MB). Peak memory consumption was 90.7 MB. Max. memory is 7.1 GB. [2020-10-16 10:53:17,899 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 10:53:17,899 INFO L168 Benchmark]: CACSL2BoogieTranslator took 945.87 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 99.1 MB in the beginning and 132.8 MB in the end (delta: -33.7 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2020-10-16 10:53:17,899 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.41 ms. Allocated memory is still 201.9 MB. Free memory was 132.8 MB in the beginning and 129.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-10-16 10:53:17,899 INFO L168 Benchmark]: Boogie Preprocessor took 51.31 ms. Allocated memory is still 201.9 MB. Free memory was 129.4 MB in the beginning and 128.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 10:53:17,900 INFO L168 Benchmark]: RCFGBuilder took 590.60 ms. Allocated memory is still 201.9 MB. Free memory was 128.1 MB in the beginning and 94.7 MB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2020-10-16 10:53:17,900 INFO L168 Benchmark]: TraceAbstraction took 264309.88 ms. Allocated memory was 201.9 MB in the beginning and 283.6 MB in the end (delta: 81.8 MB). Free memory was 94.0 MB in the beginning and 153.0 MB in the end (delta: -59.0 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-10-16 10:53:17,902 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 945.87 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 99.1 MB in the beginning and 132.8 MB in the end (delta: -33.7 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 79.41 ms. Allocated memory is still 201.9 MB. Free memory was 132.8 MB in the beginning and 129.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 51.31 ms. Allocated memory is still 201.9 MB. Free memory was 129.4 MB in the beginning and 128.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 590.60 ms. Allocated memory is still 201.9 MB. Free memory was 128.1 MB in the beginning and 94.7 MB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 264309.88 ms. Allocated memory was 201.9 MB in the beginning and 283.6 MB in the end (delta: 81.8 MB). Free memory was 94.0 MB in the beginning and 153.0 MB in the end (delta: -59.0 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 4309 VarBasedMoverChecksPositive, 78 VarBasedMoverChecksNegative, 15 SemBasedMoverChecksPositive, 63 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 355 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.9s, 137 PlacesBefore, 40 PlacesAfterwards, 142 TransitionsBefore, 40 TransitionsAfterwards, 5744 CoEnabledTransitionPairs, 5 FixpointIterations, 30 TrivialSequentialCompositions, 73 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 21 ConcurrentYvCompositions, 5 ChoiceCompositions, 129 TotalNumberOfCompositions, 10078 MoverChecksTotal - TimeoutResultAtElement [Line: 922]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 922). Cancelled while BasicCegarLoop was constructing difference of abstraction (778states) and FLOYD_HOARE automaton (currently 16 states, 49 states before enhancement),while ReachableStatesComputation was computing reachable states (106 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 922]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 922). Cancelled while BasicCegarLoop was constructing difference of abstraction (778states) and FLOYD_HOARE automaton (currently 16 states, 49 states before enhancement),while ReachableStatesComputation was computing reachable states (106 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 131 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 264.1s, OverallIterations: 18, TraceHistogramMax: 6, AutomataDifference: 49.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 1009 SDtfs, 3415 SDslu, 5961 SDs, 0 SdLazy, 5615 SolverSat, 561 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 18.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 824 GetRequests, 442 SyntacticMatches, 6 SemanticMatches, 376 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5469 ImplicationChecksByTransitivity, 36.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=919occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 17 MinimizatonAttempts, 5371 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 205.1s InterpolantComputationTime, 978 NumberOfCodeBlocks, 971 NumberOfCodeBlocksAsserted, 52 NumberOfCheckSat, 947 ConstructedInterpolants, 3 QuantifiedInterpolants, 390317 SizeOfPredicates, 132 NumberOfNonLiveVariables, 3498 ConjunctsInSsa, 267 ConjunctsInUnsatCore, 31 InterpolantComputations, 7 PerfectInterpolantSequences, 239/914 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown