/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 21:53:19,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 21:53:19,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 21:53:19,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-09 21:53:19,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-09 21:53:19,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-09 21:53:19,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-09 21:53:19,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-09 21:53:19,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-09 21:53:19,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-09 21:53:19,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-09 21:53:19,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-09 21:53:19,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-09 21:53:19,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-09 21:53:19,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-09 21:53:19,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-09 21:53:19,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-09 21:53:19,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-09 21:53:19,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-09 21:53:19,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-09 21:53:19,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-09 21:53:19,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-09 21:53:19,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-09 21:53:19,614 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-09 21:53:19,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-09 21:53:19,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-09 21:53:19,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-09 21:53:19,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-09 21:53:19,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-09 21:53:19,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-09 21:53:19,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-09 21:53:19,630 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-09 21:53:19,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-09 21:53:19,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 21:53:19,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 21:53:19,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 21:53:19,632 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-07-09 21:53:19,669 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 21:53:19,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 21:53:19,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 21:53:19,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 21:53:19,672 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 21:53:19,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 21:53:19,673 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 21:53:19,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 21:53:19,673 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 21:53:19,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 21:53:19,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 21:53:19,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 21:53:19,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 21:53:19,674 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 21:53:19,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 21:53:19,675 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 21:53:19,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 21:53:19,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 21:53:19,675 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 21:53:19,675 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 21:53:19,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 21:53:19,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 21:53:19,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 21:53:19,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 21:53:19,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 21:53:19,676 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 21:53:19,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 21:53:19,677 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 21:53:19,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 21:53:19,677 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-09 21:53:19,677 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 21:53:19,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 21:53:19,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 21:53:19,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 21:53:19,991 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 21:53:19,993 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 21:53:19,993 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2021-07-09 21:53:20,048 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e9d44e15/537528512528468da72de988a70c3655/FLAGb2433d57d [2021-07-09 21:53:20,501 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 21:53:20,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2021-07-09 21:53:20,526 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e9d44e15/537528512528468da72de988a70c3655/FLAGb2433d57d [2021-07-09 21:53:20,547 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e9d44e15/537528512528468da72de988a70c3655 [2021-07-09 21:53:20,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 21:53:20,552 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 21:53:20,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 21:53:20,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 21:53:20,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 21:53:20,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 09:53:20" (1/1) ... [2021-07-09 21:53:20,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52e7be01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 09:53:20, skipping insertion in model container [2021-07-09 21:53:20,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 09:53:20" (1/1) ... [2021-07-09 21:53:20,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 21:53:20,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 21:53:20,857 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-09 21:53:20,969 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i[31246,31259] [2021-07-09 21:53:20,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 21:53:20,992 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 21:53:21,016 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-09 21:53:21,044 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i[31246,31259] [2021-07-09 21:53:21,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 21:53:21,088 INFO L208 MainTranslator]: Completed translation [2021-07-09 21:53:21,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 09:53:21 WrapperNode [2021-07-09 21:53:21,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 21:53:21,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 21:53:21,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 21:53:21,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 21:53:21,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 09:53:21" (1/1) ... [2021-07-09 21:53:21,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 09:53:21" (1/1) ... [2021-07-09 21:53:21,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 21:53:21,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 21:53:21,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 21:53:21,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 21:53:21,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 09:53:21" (1/1) ... [2021-07-09 21:53:21,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 09:53:21" (1/1) ... [2021-07-09 21:53:21,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 09:53:21" (1/1) ... [2021-07-09 21:53:21,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 09:53:21" (1/1) ... [2021-07-09 21:53:21,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 09:53:21" (1/1) ... [2021-07-09 21:53:21,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 09:53:21" (1/1) ... [2021-07-09 21:53:21,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 09:53:21" (1/1) ... [2021-07-09 21:53:21,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 21:53:21,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 21:53:21,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 21:53:21,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 21:53:21,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 09:53:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 21:53:21,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-09 21:53:21,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 21:53:21,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-09 21:53:21,252 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2021-07-09 21:53:21,254 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2021-07-09 21:53:21,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 21:53:21,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 21:53:21,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 21:53:21,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-09 21:53:21,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 21:53:21,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 21:53:21,255 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2021-07-09 21:53:21,255 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2021-07-09 21:53:21,260 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 21:53:21,638 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 21:53:21,638 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-07-09 21:53:21,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 09:53:21 BoogieIcfgContainer [2021-07-09 21:53:21,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 21:53:21,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 21:53:21,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 21:53:21,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 21:53:21,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 09:53:20" (1/3) ... [2021-07-09 21:53:21,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f5be8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 09:53:21, skipping insertion in model container [2021-07-09 21:53:21,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 09:53:21" (2/3) ... [2021-07-09 21:53:21,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f5be8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 09:53:21, skipping insertion in model container [2021-07-09 21:53:21,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 09:53:21" (3/3) ... [2021-07-09 21:53:21,647 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2021-07-09 21:53:21,651 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 21:53:21,651 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 21:53:21,651 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 21:53:21,652 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 21:53:21,681 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,681 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,682 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,682 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,682 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,682 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,682 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,682 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,683 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,683 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,683 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,683 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,683 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,684 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,684 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,684 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,684 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,684 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,685 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,685 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,685 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,685 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,685 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,686 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,686 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,686 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,686 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,686 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,686 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,687 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,687 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,687 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,687 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,687 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,688 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,688 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,688 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,688 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,688 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,689 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,689 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,689 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,689 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,689 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,689 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,690 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,690 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,690 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,690 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,690 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,691 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,691 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,691 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,691 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,691 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,692 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,692 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,692 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,692 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,692 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,692 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,692 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,693 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,693 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,693 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,693 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,693 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,694 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,694 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,694 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,694 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,694 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,695 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,695 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,695 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,695 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,695 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,695 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,696 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,696 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,696 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,696 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,697 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,697 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,697 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,697 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,697 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,697 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,698 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,698 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,698 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,698 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,698 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,698 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,699 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,699 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,699 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,699 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,700 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,700 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,703 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,703 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,703 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,704 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,704 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,704 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,704 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,704 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,704 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,707 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,707 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,707 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,707 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,708 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,708 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,709 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,710 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,710 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,710 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,710 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,710 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,712 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,712 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,712 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,712 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,712 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,713 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,713 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,713 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,713 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 21:53:21,761 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-07-09 21:53:21,781 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-09 21:53:21,798 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 21:53:21,798 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 21:53:21,798 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 21:53:21,798 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 21:53:21,798 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 21:53:21,798 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 21:53:21,799 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 21:53:21,799 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == readerThread1of1ForFork0======== [2021-07-09 21:53:25,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 39083 states, 36298 states have (on average 2.2453578709570774) internal successors, (81502), 39082 states have internal predecessors, (81502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:25,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-07-09 21:53:25,555 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 21:53:25,556 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 21:53:25,556 INFO L430 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 21:53:25,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:53:25,564 INFO L82 PathProgramCache]: Analyzing trace with hash -576272667, now seen corresponding path program 1 times [2021-07-09 21:53:25,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:53:25,572 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991181316] [2021-07-09 21:53:25,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:53:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:53:25,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:25,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:25,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:25,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:25,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:25,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:25,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:25,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:25,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:25,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:25,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:25,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:25,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:53:25,939 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:53:25,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991181316] [2021-07-09 21:53:25,941 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991181316] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 21:53:25,941 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 21:53:25,941 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 21:53:25,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485530639] [2021-07-09 21:53:25,945 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 21:53:25,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:53:25,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 21:53:25,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 21:53:26,029 INFO L87 Difference]: Start difference. First operand has 39083 states, 36298 states have (on average 2.2453578709570774) internal successors, (81502), 39082 states have internal predecessors, (81502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:27,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 21:53:27,088 INFO L93 Difference]: Finished difference Result 70899 states and 148960 transitions. [2021-07-09 21:53:27,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 21:53:27,090 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-07-09 21:53:27,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 21:53:27,344 INFO L225 Difference]: With dead ends: 70899 [2021-07-09 21:53:27,344 INFO L226 Difference]: Without dead ends: 31967 [2021-07-09 21:53:27,345 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 60.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 21:53:27,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31967 states. [2021-07-09 21:53:28,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31967 to 22693. [2021-07-09 21:53:28,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22693 states, 22415 states have (on average 2.4026321659602945) internal successors, (53855), 22692 states have internal predecessors, (53855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:28,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22693 states to 22693 states and 53855 transitions. [2021-07-09 21:53:28,581 INFO L78 Accepts]: Start accepts. Automaton has 22693 states and 53855 transitions. Word has length 36 [2021-07-09 21:53:28,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 21:53:28,582 INFO L482 AbstractCegarLoop]: Abstraction has 22693 states and 53855 transitions. [2021-07-09 21:53:28,582 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:28,582 INFO L276 IsEmpty]: Start isEmpty. Operand 22693 states and 53855 transitions. [2021-07-09 21:53:28,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-09 21:53:28,587 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 21:53:28,587 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 21:53:28,588 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 21:53:28,588 INFO L430 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 21:53:28,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:53:28,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1218895280, now seen corresponding path program 1 times [2021-07-09 21:53:28,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:53:28,591 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449608137] [2021-07-09 21:53:28,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:53:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:53:28,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:28,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:28,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:28,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:28,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:28,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:28,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:53:28,713 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:53:28,713 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449608137] [2021-07-09 21:53:28,713 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449608137] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 21:53:28,713 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 21:53:28,713 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-09 21:53:28,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200028300] [2021-07-09 21:53:28,715 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-09 21:53:28,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:53:28,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-09 21:53:28,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 21:53:28,717 INFO L87 Difference]: Start difference. First operand 22693 states and 53855 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:29,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 21:53:29,137 INFO L93 Difference]: Finished difference Result 20427 states and 44702 transitions. [2021-07-09 21:53:29,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 21:53:29,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-07-09 21:53:29,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 21:53:29,216 INFO L225 Difference]: With dead ends: 20427 [2021-07-09 21:53:29,217 INFO L226 Difference]: Without dead ends: 18092 [2021-07-09 21:53:29,218 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 21:53:29,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18092 states. [2021-07-09 21:53:29,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18092 to 18088. [2021-07-09 21:53:29,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18088 states, 17749 states have (on average 2.3825567637613387) internal successors, (42288), 18087 states have internal predecessors, (42288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:29,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18088 states to 18088 states and 42288 transitions. [2021-07-09 21:53:29,812 INFO L78 Accepts]: Start accepts. Automaton has 18088 states and 42288 transitions. Word has length 39 [2021-07-09 21:53:29,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 21:53:29,812 INFO L482 AbstractCegarLoop]: Abstraction has 18088 states and 42288 transitions. [2021-07-09 21:53:29,813 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:29,813 INFO L276 IsEmpty]: Start isEmpty. Operand 18088 states and 42288 transitions. [2021-07-09 21:53:29,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-09 21:53:29,816 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 21:53:29,816 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 21:53:29,816 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 21:53:29,817 INFO L430 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 21:53:29,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:53:29,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1202070144, now seen corresponding path program 2 times [2021-07-09 21:53:29,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:53:29,817 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731944884] [2021-07-09 21:53:29,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:53:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:53:29,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:29,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:29,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:29,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:29,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:29,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:29,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:29,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:29,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:53:29,922 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:53:29,923 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731944884] [2021-07-09 21:53:29,923 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731944884] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 21:53:29,923 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 21:53:29,923 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-09 21:53:29,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464693508] [2021-07-09 21:53:29,923 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-09 21:53:29,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:53:29,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-09 21:53:29,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-09 21:53:29,924 INFO L87 Difference]: Start difference. First operand 18088 states and 42288 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:29,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 21:53:29,984 INFO L93 Difference]: Finished difference Result 10282 states and 20572 transitions. [2021-07-09 21:53:29,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 21:53:29,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-07-09 21:53:29,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 21:53:30,011 INFO L225 Difference]: With dead ends: 10282 [2021-07-09 21:53:30,012 INFO L226 Difference]: Without dead ends: 9141 [2021-07-09 21:53:30,012 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.0ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-09 21:53:30,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9141 states. [2021-07-09 21:53:30,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9141 to 7926. [2021-07-09 21:53:30,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7926 states, 7758 states have (on average 2.0978344934261406) internal successors, (16275), 7925 states have internal predecessors, (16275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:30,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7926 states to 7926 states and 16275 transitions. [2021-07-09 21:53:30,303 INFO L78 Accepts]: Start accepts. Automaton has 7926 states and 16275 transitions. Word has length 39 [2021-07-09 21:53:30,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 21:53:30,303 INFO L482 AbstractCegarLoop]: Abstraction has 7926 states and 16275 transitions. [2021-07-09 21:53:30,303 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:30,303 INFO L276 IsEmpty]: Start isEmpty. Operand 7926 states and 16275 transitions. [2021-07-09 21:53:30,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-07-09 21:53:30,307 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 21:53:30,307 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 21:53:30,308 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 21:53:30,308 INFO L430 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 21:53:30,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:53:30,308 INFO L82 PathProgramCache]: Analyzing trace with hash 980522090, now seen corresponding path program 1 times [2021-07-09 21:53:30,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:53:30,309 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689027112] [2021-07-09 21:53:30,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:53:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:53:30,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:30,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:30,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:30,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:30,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:30,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:30,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:30,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:30,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:30,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:30,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:30,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:30,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:53:30,360 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:53:30,360 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689027112] [2021-07-09 21:53:30,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689027112] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 21:53:30,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 21:53:30,361 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 21:53:30,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961038003] [2021-07-09 21:53:30,361 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 21:53:30,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:53:30,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 21:53:30,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 21:53:30,362 INFO L87 Difference]: Start difference. First operand 7926 states and 16275 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:30,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 21:53:30,483 INFO L93 Difference]: Finished difference Result 8688 states and 17971 transitions. [2021-07-09 21:53:30,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:53:30,484 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-07-09 21:53:30,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 21:53:30,500 INFO L225 Difference]: With dead ends: 8688 [2021-07-09 21:53:30,501 INFO L226 Difference]: Without dead ends: 6132 [2021-07-09 21:53:30,501 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.4ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-07-09 21:53:30,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6132 states. [2021-07-09 21:53:30,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6132 to 4536. [2021-07-09 21:53:30,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4536 states, 4464 states have (on average 2.129928315412186) internal successors, (9508), 4535 states have internal predecessors, (9508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:30,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4536 states to 4536 states and 9508 transitions. [2021-07-09 21:53:30,610 INFO L78 Accepts]: Start accepts. Automaton has 4536 states and 9508 transitions. Word has length 53 [2021-07-09 21:53:30,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 21:53:30,611 INFO L482 AbstractCegarLoop]: Abstraction has 4536 states and 9508 transitions. [2021-07-09 21:53:30,611 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:30,611 INFO L276 IsEmpty]: Start isEmpty. Operand 4536 states and 9508 transitions. [2021-07-09 21:53:30,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-09 21:53:30,617 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 21:53:30,617 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 21:53:30,617 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 21:53:30,617 INFO L430 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 21:53:30,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:53:30,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1064517177, now seen corresponding path program 1 times [2021-07-09 21:53:30,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:53:30,618 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800397467] [2021-07-09 21:53:30,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:53:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:53:30,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:30,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:30,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:30,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:30,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:30,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:30,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:30,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:30,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:30,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:30,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:30,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:30,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:53:30,681 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:53:30,681 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800397467] [2021-07-09 21:53:30,682 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800397467] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 21:53:30,682 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 21:53:30,682 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 21:53:30,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225319172] [2021-07-09 21:53:30,682 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 21:53:30,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:53:30,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 21:53:30,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-09 21:53:30,683 INFO L87 Difference]: Start difference. First operand 4536 states and 9508 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:30,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 21:53:30,719 INFO L93 Difference]: Finished difference Result 3318 states and 6412 transitions. [2021-07-09 21:53:30,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 21:53:30,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-07-09 21:53:30,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 21:53:30,725 INFO L225 Difference]: With dead ends: 3318 [2021-07-09 21:53:30,725 INFO L226 Difference]: Without dead ends: 1633 [2021-07-09 21:53:30,725 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.8ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-09 21:53:30,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2021-07-09 21:53:30,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1633. [2021-07-09 21:53:30,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1633 states, 1601 states have (on average 2.424109931292942) internal successors, (3881), 1632 states have internal predecessors, (3881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:30,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 3881 transitions. [2021-07-09 21:53:30,760 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 3881 transitions. Word has length 60 [2021-07-09 21:53:30,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 21:53:30,760 INFO L482 AbstractCegarLoop]: Abstraction has 1633 states and 3881 transitions. [2021-07-09 21:53:30,761 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:30,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 3881 transitions. [2021-07-09 21:53:30,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-07-09 21:53:30,763 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 21:53:30,763 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 21:53:30,764 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 21:53:30,764 INFO L430 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 21:53:30,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:53:30,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1853490143, now seen corresponding path program 1 times [2021-07-09 21:53:30,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:53:30,765 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280854920] [2021-07-09 21:53:30,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:53:30,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:53:30,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:30,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:30,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:30,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 21:53:30,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:30,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 21:53:30,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:30,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 21:53:30,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:30,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 21:53:30,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:30,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 21:53:30,871 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-09 21:53:30,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 21:53:30,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:30,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:30,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:53:30,893 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:53:30,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280854920] [2021-07-09 21:53:30,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280854920] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 21:53:30,893 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 21:53:30,893 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 21:53:30,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720379243] [2021-07-09 21:53:30,895 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 21:53:30,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:53:30,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 21:53:30,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-07-09 21:53:30,899 INFO L87 Difference]: Start difference. First operand 1633 states and 3881 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:31,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 21:53:31,161 INFO L93 Difference]: Finished difference Result 1168 states and 2811 transitions. [2021-07-09 21:53:31,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:53:31,162 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-07-09 21:53:31,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 21:53:31,162 INFO L225 Difference]: With dead ends: 1168 [2021-07-09 21:53:31,162 INFO L226 Difference]: Without dead ends: 0 [2021-07-09 21:53:31,162 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 249.8ms TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-07-09 21:53:31,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-09 21:53:31,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-09 21:53:31,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:31,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-09 21:53:31,163 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2021-07-09 21:53:31,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 21:53:31,163 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-09 21:53:31,163 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:31,163 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-09 21:53:31,163 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 21:53:31,164 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 21:53:31,164 INFO L301 ceAbstractionStarter]: Result for error location readerThread1of1ForFork0 was SAFE (1/3) [2021-07-09 21:53:31,166 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-09 21:53:31,166 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 21:53:31,166 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 21:53:31,166 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 21:53:31,166 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 21:53:31,166 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 21:53:31,167 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 21:53:31,167 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 21:53:31,167 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == readerThread1of1ForFork3======== [2021-07-09 21:53:33,725 INFO L276 IsEmpty]: Start isEmpty. Operand has 40427 states, 36277 states have (on average 2.4127684207624664) internal successors, (87528), 40426 states have internal predecessors, (87528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:33,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-07-09 21:53:33,743 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 21:53:33,744 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 21:53:33,744 INFO L430 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 21:53:33,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:53:33,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1856661830, now seen corresponding path program 1 times [2021-07-09 21:53:33,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:53:33,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100410718] [2021-07-09 21:53:33,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:53:33,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:53:33,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:33,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:33,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:33,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:33,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:33,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:33,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:33,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:33,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:33,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:33,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:33,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:33,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:53:33,817 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:53:33,817 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100410718] [2021-07-09 21:53:33,817 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100410718] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 21:53:33,817 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 21:53:33,817 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 21:53:33,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254938399] [2021-07-09 21:53:33,818 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 21:53:33,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:53:33,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 21:53:33,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 21:53:33,874 INFO L87 Difference]: Start difference. First operand has 40427 states, 36277 states have (on average 2.4127684207624664) internal successors, (87528), 40426 states have internal predecessors, (87528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:34,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 21:53:34,510 INFO L93 Difference]: Finished difference Result 71067 states and 169801 transitions. [2021-07-09 21:53:34,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 21:53:34,511 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-07-09 21:53:34,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 21:53:34,669 INFO L225 Difference]: With dead ends: 71067 [2021-07-09 21:53:34,669 INFO L226 Difference]: Without dead ends: 28272 [2021-07-09 21:53:34,670 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 61.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 21:53:34,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28272 states. [2021-07-09 21:53:35,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28272 to 19227. [2021-07-09 21:53:35,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19227 states, 19008 states have (on average 3.0288299663299663) internal successors, (57572), 19226 states have internal predecessors, (57572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:35,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19227 states to 19227 states and 57572 transitions. [2021-07-09 21:53:35,578 INFO L78 Accepts]: Start accepts. Automaton has 19227 states and 57572 transitions. Word has length 48 [2021-07-09 21:53:35,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 21:53:35,578 INFO L482 AbstractCegarLoop]: Abstraction has 19227 states and 57572 transitions. [2021-07-09 21:53:35,578 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:35,578 INFO L276 IsEmpty]: Start isEmpty. Operand 19227 states and 57572 transitions. [2021-07-09 21:53:35,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-07-09 21:53:35,586 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 21:53:35,586 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 21:53:35,586 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-09 21:53:35,587 INFO L430 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 21:53:35,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:53:35,587 INFO L82 PathProgramCache]: Analyzing trace with hash -67838741, now seen corresponding path program 1 times [2021-07-09 21:53:35,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:53:35,587 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126736056] [2021-07-09 21:53:35,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:53:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:53:35,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:35,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:35,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:35,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:35,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:35,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:35,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:53:35,642 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:53:35,642 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126736056] [2021-07-09 21:53:35,642 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126736056] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 21:53:35,642 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 21:53:35,642 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-09 21:53:35,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687667506] [2021-07-09 21:53:35,643 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-09 21:53:35,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:53:35,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-09 21:53:35,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 21:53:35,644 INFO L87 Difference]: Start difference. First operand 19227 states and 57572 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:35,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 21:53:35,979 INFO L93 Difference]: Finished difference Result 17187 states and 47606 transitions. [2021-07-09 21:53:35,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 21:53:35,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-07-09 21:53:35,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 21:53:36,037 INFO L225 Difference]: With dead ends: 17187 [2021-07-09 21:53:36,038 INFO L226 Difference]: Without dead ends: 16310 [2021-07-09 21:53:36,038 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 21:53:36,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16310 states. [2021-07-09 21:53:36,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16310 to 16298. [2021-07-09 21:53:36,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16298 states, 16083 states have (on average 2.9004538954175216) internal successors, (46648), 16297 states have internal predecessors, (46648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:36,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16298 states to 16298 states and 46648 transitions. [2021-07-09 21:53:36,693 INFO L78 Accepts]: Start accepts. Automaton has 16298 states and 46648 transitions. Word has length 51 [2021-07-09 21:53:36,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 21:53:36,694 INFO L482 AbstractCegarLoop]: Abstraction has 16298 states and 46648 transitions. [2021-07-09 21:53:36,694 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:36,694 INFO L276 IsEmpty]: Start isEmpty. Operand 16298 states and 46648 transitions. [2021-07-09 21:53:36,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-07-09 21:53:36,700 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 21:53:36,700 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 21:53:36,700 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-09 21:53:36,700 INFO L430 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 21:53:36,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:53:36,701 INFO L82 PathProgramCache]: Analyzing trace with hash 717432957, now seen corresponding path program 2 times [2021-07-09 21:53:36,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:53:36,703 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879346880] [2021-07-09 21:53:36,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:53:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:53:36,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:36,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:36,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:36,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:36,752 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-07-09 21:53:36,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 21:53:36,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:36,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:36,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:53:36,764 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:53:36,764 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879346880] [2021-07-09 21:53:36,764 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879346880] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 21:53:36,764 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 21:53:36,764 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-09 21:53:36,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396390075] [2021-07-09 21:53:36,764 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-09 21:53:36,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:53:36,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-09 21:53:36,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-09 21:53:36,765 INFO L87 Difference]: Start difference. First operand 16298 states and 46648 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:36,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 21:53:36,904 INFO L93 Difference]: Finished difference Result 20365 states and 58495 transitions. [2021-07-09 21:53:36,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 21:53:36,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-07-09 21:53:36,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 21:53:36,958 INFO L225 Difference]: With dead ends: 20365 [2021-07-09 21:53:36,958 INFO L226 Difference]: Without dead ends: 19367 [2021-07-09 21:53:36,959 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-09 21:53:37,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19367 states. [2021-07-09 21:53:37,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19367 to 14107. [2021-07-09 21:53:37,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14107 states, 13931 states have (on average 3.0502476491278445) internal successors, (42493), 14106 states have internal predecessors, (42493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:37,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14107 states to 14107 states and 42493 transitions. [2021-07-09 21:53:37,532 INFO L78 Accepts]: Start accepts. Automaton has 14107 states and 42493 transitions. Word has length 51 [2021-07-09 21:53:37,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 21:53:37,532 INFO L482 AbstractCegarLoop]: Abstraction has 14107 states and 42493 transitions. [2021-07-09 21:53:37,532 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:37,533 INFO L276 IsEmpty]: Start isEmpty. Operand 14107 states and 42493 transitions. [2021-07-09 21:53:37,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-07-09 21:53:37,538 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 21:53:37,538 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 21:53:37,539 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-09 21:53:37,539 INFO L430 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 21:53:37,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:53:37,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1283849016, now seen corresponding path program 1 times [2021-07-09 21:53:37,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:53:37,539 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127495917] [2021-07-09 21:53:37,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:53:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:53:37,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:37,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:37,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:37,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:37,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:37,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:37,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:37,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:37,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:37,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:37,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:37,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:37,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:53:37,578 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:53:37,578 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127495917] [2021-07-09 21:53:37,578 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127495917] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 21:53:37,578 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 21:53:37,578 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 21:53:37,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381596212] [2021-07-09 21:53:37,579 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 21:53:37,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:53:37,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 21:53:37,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 21:53:37,580 INFO L87 Difference]: Start difference. First operand 14107 states and 42493 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:37,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 21:53:37,811 INFO L93 Difference]: Finished difference Result 32439 states and 99651 transitions. [2021-07-09 21:53:37,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:53:37,812 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-07-09 21:53:37,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 21:53:37,894 INFO L225 Difference]: With dead ends: 32439 [2021-07-09 21:53:37,895 INFO L226 Difference]: Without dead ends: 28466 [2021-07-09 21:53:37,895 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.1ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-07-09 21:53:37,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28466 states. [2021-07-09 21:53:38,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28466 to 12554. [2021-07-09 21:53:38,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12554 states, 12387 states have (on average 3.0455316057156696) internal successors, (37725), 12553 states have internal predecessors, (37725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:38,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12554 states to 12554 states and 37725 transitions. [2021-07-09 21:53:38,499 INFO L78 Accepts]: Start accepts. Automaton has 12554 states and 37725 transitions. Word has length 53 [2021-07-09 21:53:38,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 21:53:38,499 INFO L482 AbstractCegarLoop]: Abstraction has 12554 states and 37725 transitions. [2021-07-09 21:53:38,499 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:38,500 INFO L276 IsEmpty]: Start isEmpty. Operand 12554 states and 37725 transitions. [2021-07-09 21:53:38,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-07-09 21:53:38,504 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 21:53:38,504 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 21:53:38,504 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-09 21:53:38,505 INFO L430 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 21:53:38,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:53:38,505 INFO L82 PathProgramCache]: Analyzing trace with hash 424431306, now seen corresponding path program 1 times [2021-07-09 21:53:38,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:53:38,505 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597414144] [2021-07-09 21:53:38,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:53:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:53:38,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:38,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:38,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:38,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:38,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:38,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:38,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:38,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:38,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:38,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:38,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:53:38,545 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:53:38,545 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597414144] [2021-07-09 21:53:38,545 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597414144] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 21:53:38,545 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 21:53:38,545 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 21:53:38,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606023046] [2021-07-09 21:53:38,546 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 21:53:38,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:53:38,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 21:53:38,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-09 21:53:38,546 INFO L87 Difference]: Start difference. First operand 12554 states and 37725 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:38,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 21:53:38,591 INFO L93 Difference]: Finished difference Result 5248 states and 12393 transitions. [2021-07-09 21:53:38,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 21:53:38,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-07-09 21:53:38,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 21:53:38,600 INFO L225 Difference]: With dead ends: 5248 [2021-07-09 21:53:38,600 INFO L226 Difference]: Without dead ends: 3383 [2021-07-09 21:53:38,601 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.8ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-09 21:53:38,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3383 states. [2021-07-09 21:53:38,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3383 to 3149. [2021-07-09 21:53:38,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3149 states, 3086 states have (on average 2.7213220998055734) internal successors, (8398), 3148 states have internal predecessors, (8398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:38,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3149 states to 3149 states and 8398 transitions. [2021-07-09 21:53:38,662 INFO L78 Accepts]: Start accepts. Automaton has 3149 states and 8398 transitions. Word has length 54 [2021-07-09 21:53:38,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 21:53:38,663 INFO L482 AbstractCegarLoop]: Abstraction has 3149 states and 8398 transitions. [2021-07-09 21:53:38,663 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:38,663 INFO L276 IsEmpty]: Start isEmpty. Operand 3149 states and 8398 transitions. [2021-07-09 21:53:38,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-09 21:53:38,665 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 21:53:38,665 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 21:53:38,665 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-09 21:53:38,666 INFO L430 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 21:53:38,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:53:38,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1066112911, now seen corresponding path program 1 times [2021-07-09 21:53:38,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:53:38,666 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035874262] [2021-07-09 21:53:38,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:53:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:53:38,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:38,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:38,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:38,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:38,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:38,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:38,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:38,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:38,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:38,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 21:53:38,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:53:38,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 21:53:38,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:53:38,887 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:53:38,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035874262] [2021-07-09 21:53:38,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035874262] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 21:53:38,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 21:53:38,887 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 21:53:38,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697844267] [2021-07-09 21:53:38,888 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 21:53:38,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:53:38,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 21:53:38,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-09 21:53:38,888 INFO L87 Difference]: Start difference. First operand 3149 states and 8398 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:38,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 21:53:38,901 INFO L93 Difference]: Finished difference Result 689 states and 1026 transitions. [2021-07-09 21:53:38,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 21:53:38,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-07-09 21:53:38,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 21:53:38,902 INFO L225 Difference]: With dead ends: 689 [2021-07-09 21:53:38,902 INFO L226 Difference]: Without dead ends: 0 [2021-07-09 21:53:38,903 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-09 21:53:38,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-09 21:53:38,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-09 21:53:38,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:38,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-09 21:53:38,903 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2021-07-09 21:53:38,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 21:53:38,903 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-09 21:53:38,903 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:38,903 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-09 21:53:38,903 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 21:53:38,904 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-09 21:53:38,904 INFO L301 ceAbstractionStarter]: Result for error location readerThread1of1ForFork3 was SAFE (2/3) [2021-07-09 21:53:38,905 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-07-09 21:53:38,906 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 21:53:38,906 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 21:53:38,906 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 21:53:38,906 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 21:53:38,906 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 21:53:38,906 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 21:53:38,906 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 21:53:38,906 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 21:53:39,127 INFO L276 IsEmpty]: Start isEmpty. Operand has 4767 states, 4089 states have (on average 1.7613108339447299) internal successors, (7202), 4766 states have internal predecessors, (7202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:53:39,139 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 21:53:39,139 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (3/3) [2021-07-09 21:53:39,139 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 21:53:39,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 09:53:39 BasicIcfg [2021-07-09 21:53:39,142 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 21:53:39,145 INFO L168 Benchmark]: Toolchain (without parser) took 18590.90 ms. Allocated memory was 225.4 MB in the beginning and 5.8 GB in the end (delta: 5.5 GB). Free memory was 188.0 MB in the beginning and 4.7 GB in the end (delta: -4.6 GB). Peak memory consumption was 978.8 MB. Max. memory is 8.0 GB. [2021-07-09 21:53:39,145 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 225.4 MB. Free memory is still 205.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 21:53:39,145 INFO L168 Benchmark]: CACSL2BoogieTranslator took 533.95 ms. Allocated memory is still 225.4 MB. Free memory was 187.8 MB in the beginning and 198.5 MB in the end (delta: -10.7 MB). Peak memory consumption was 12.0 MB. Max. memory is 8.0 GB. [2021-07-09 21:53:39,145 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.46 ms. Allocated memory is still 225.4 MB. Free memory was 198.5 MB in the beginning and 196.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 21:53:39,145 INFO L168 Benchmark]: Boogie Preprocessor took 23.82 ms. Allocated memory is still 225.4 MB. Free memory was 196.4 MB in the beginning and 194.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 21:53:39,147 INFO L168 Benchmark]: RCFGBuilder took 476.44 ms. Allocated memory is still 225.4 MB. Free memory was 194.8 MB in the beginning and 161.8 MB in the end (delta: 33.0 MB). Peak memory consumption was 32.5 MB. Max. memory is 8.0 GB. [2021-07-09 21:53:39,147 INFO L168 Benchmark]: TraceAbstraction took 17500.23 ms. Allocated memory was 225.4 MB in the beginning and 5.8 GB in the end (delta: 5.5 GB). Free memory was 161.8 MB in the beginning and 4.7 GB in the end (delta: -4.6 GB). Peak memory consumption was 952.1 MB. Max. memory is 8.0 GB. [2021-07-09 21:53:39,152 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 225.4 MB. Free memory is still 205.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 533.95 ms. Allocated memory is still 225.4 MB. Free memory was 187.8 MB in the beginning and 198.5 MB in the end (delta: -10.7 MB). Peak memory consumption was 12.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 49.46 ms. Allocated memory is still 225.4 MB. Free memory was 198.5 MB in the beginning and 196.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 23.82 ms. Allocated memory is still 225.4 MB. Free memory was 196.4 MB in the beginning and 194.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 476.44 ms. Allocated memory is still 225.4 MB. Free memory was 194.8 MB in the beginning and 161.8 MB in the end (delta: 33.0 MB). Peak memory consumption was 32.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17500.23 ms. Allocated memory was 225.4 MB in the beginning and 5.8 GB in the end (delta: 5.5 GB). Free memory was 161.8 MB in the beginning and 4.7 GB in the end (delta: -4.6 GB). Peak memory consumption was 952.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 207634, positive: 197613, positive conditional: 197613, positive unconditional: 0, negative: 10021, negative conditional: 10021, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 203714, positive: 197613, positive conditional: 0, positive unconditional: 197613, negative: 6101, negative conditional: 0, negative unconditional: 6101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1335, positive: 1308, positive conditional: 0, positive unconditional: 1308, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1335, positive: 1298, positive conditional: 0, positive unconditional: 1298, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 37, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 84, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 203714, positive: 196305, positive conditional: 0, positive unconditional: 196305, negative: 6074, negative conditional: 0, negative unconditional: 6074, unknown: 1335, unknown conditional: 0, unknown unconditional: 1335] , Statistics on independence cache: Total cache size (in pairs): 1335, Positive cache size: 1308, Positive conditional cache size: 0, Positive unconditional cache size: 1308, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Independence queries for same thread: 3920 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 204875, positive: 197033, positive conditional: 197033, positive unconditional: 0, negative: 7842, negative conditional: 7842, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 202267, positive: 197033, positive conditional: 0, positive unconditional: 197033, negative: 5234, negative conditional: 0, negative unconditional: 5234, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1530, positive: 1498, positive conditional: 0, positive unconditional: 1498, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1530, positive: 1488, positive conditional: 0, positive unconditional: 1488, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 42, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 61, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 202267, positive: 195535, positive conditional: 0, positive unconditional: 195535, negative: 5202, negative conditional: 0, negative unconditional: 5202, unknown: 1530, unknown conditional: 0, unknown unconditional: 1530] , Statistics on independence cache: Total cache size (in pairs): 1530, Positive cache size: 1498, Positive conditional cache size: 0, Positive unconditional cache size: 1498, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Independence queries for same thread: 2608 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 15106, positive: 14422, positive conditional: 14422, positive unconditional: 0, negative: 684, negative conditional: 684, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 14854, positive: 14422, positive conditional: 0, positive unconditional: 14422, negative: 432, negative conditional: 0, negative unconditional: 432, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 553, positive: 540, positive conditional: 0, positive unconditional: 540, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 553, positive: 534, positive conditional: 0, positive unconditional: 534, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 34, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 14854, positive: 13882, positive conditional: 0, positive unconditional: 13882, negative: 419, negative conditional: 0, negative unconditional: 419, unknown: 553, unknown conditional: 0, unknown unconditional: 553] , Statistics on independence cache: Total cache size (in pairs): 553, Positive cache size: 540, Positive conditional cache size: 0, Positive unconditional cache size: 540, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Independence queries for same thread: 252 - PositiveResult [Line: 739]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: readerThread1of1ForFork0 with 1 thread instances CFG has 7 procedures, 132 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9368.7ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 200.5ms, AutomataDifference: 2439.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3575.4ms, PartialOrderReductionTime: 3559.8ms, HoareTripleCheckerStatistics: 969 SDtfs, 672 SDslu, 2112 SDs, 0 SdLazy, 286 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 184.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 369.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=39083occurred in iteration=0, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2247.3ms AutomataMinimizationTime, 6 MinimizatonAttempts, 12089 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 25.8ms SsaConstructionTime, 141.3ms SatisfiabilityAnalysisTime, 462.9ms InterpolantComputationTime, 291 NumberOfCodeBlocks, 291 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 285 ConstructedInterpolants, 0 QuantifiedInterpolants, 655 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: readerThread1of1ForFork3 with 1 thread instances CFG has 7 procedures, 132 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7737.4ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 105.7ms, AutomataDifference: 1826.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2496.8ms, PartialOrderReductionTime: 2494.3ms, HoareTripleCheckerStatistics: 952 SDtfs, 695 SDslu, 1873 SDs, 0 SdLazy, 282 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 178.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 143.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=40427occurred in iteration=0, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2800.9ms AutomataMinimizationTime, 6 MinimizatonAttempts, 30463 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.9ms SsaConstructionTime, 199.1ms SatisfiabilityAnalysisTime, 251.3ms InterpolantComputationTime, 317 NumberOfCodeBlocks, 317 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 311 ConstructedInterpolants, 0 QuantifiedInterpolants, 623 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 132 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 233.3ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 17.7ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 214.9ms, PartialOrderReductionTime: 210.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4767occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...