/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 22:34:04,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 22:34:04,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 22:34:04,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 22:34:04,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 22:34:04,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 22:34:04,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 22:34:04,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 22:34:04,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 22:34:04,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 22:34:04,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 22:34:04,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 22:34:04,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 22:34:04,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 22:34:04,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 22:34:04,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 22:34:04,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 22:34:04,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 22:34:04,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 22:34:04,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 22:34:04,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 22:34:04,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 22:34:04,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 22:34:04,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 22:34:04,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 22:34:04,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 22:34:04,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 22:34:04,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 22:34:04,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 22:34:04,594 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 22:34:04,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 22:34:04,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 22:34:04,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 22:34:04,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 22:34:04,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 22:34:04,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 22:34:04,598 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-05 22:34:04,621 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 22:34:04,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 22:34:04,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 22:34:04,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 22:34:04,623 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 22:34:04,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 22:34:04,623 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 22:34:04,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 22:34:04,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 22:34:04,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 22:34:04,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 22:34:04,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 22:34:04,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 22:34:04,625 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 22:34:04,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 22:34:04,625 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 22:34:04,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 22:34:04,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 22:34:04,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 22:34:04,626 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 22:34:04,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 22:34:04,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:34:04,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 22:34:04,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-05 22:34:04,627 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 22:34:04,627 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 22:34:04,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 22:34:04,628 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 22:34:04,628 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-05 22:34:04,628 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-05 22:34:04,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 22:34:04,967 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 22:34:04,971 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 22:34:04,973 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 22:34:04,974 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 22:34:04,974 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i [2020-10-05 22:34:05,030 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c37626a9c/33cc04923adf4e289f0170a218c6dc3a/FLAGc0500493c [2020-10-05 22:34:05,579 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 22:34:05,580 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i [2020-10-05 22:34:05,594 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c37626a9c/33cc04923adf4e289f0170a218c6dc3a/FLAGc0500493c [2020-10-05 22:34:05,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c37626a9c/33cc04923adf4e289f0170a218c6dc3a [2020-10-05 22:34:05,867 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 22:34:05,868 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 22:34:05,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 22:34:05,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 22:34:05,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 22:34:05,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:34:05" (1/1) ... [2020-10-05 22:34:05,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@786c2fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:34:05, skipping insertion in model container [2020-10-05 22:34:05,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:34:05" (1/1) ... [2020-10-05 22:34:05,885 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 22:34:05,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 22:34:06,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:34:06,378 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 22:34:06,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:34:06,514 INFO L208 MainTranslator]: Completed translation [2020-10-05 22:34:06,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:34:06 WrapperNode [2020-10-05 22:34:06,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 22:34:06,516 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 22:34:06,516 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 22:34:06,516 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 22:34:06,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:34:06" (1/1) ... [2020-10-05 22:34:06,546 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:34:06" (1/1) ... [2020-10-05 22:34:06,564 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 22:34:06,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 22:34:06,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 22:34:06,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 22:34:06,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:34:06" (1/1) ... [2020-10-05 22:34:06,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:34:06" (1/1) ... [2020-10-05 22:34:06,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:34:06" (1/1) ... [2020-10-05 22:34:06,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:34:06" (1/1) ... [2020-10-05 22:34:06,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:34:06" (1/1) ... [2020-10-05 22:34:06,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:34:06" (1/1) ... [2020-10-05 22:34:06,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:34:06" (1/1) ... [2020-10-05 22:34:06,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 22:34:06,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 22:34:06,592 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 22:34:06,592 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 22:34:06,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:34:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:34:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-05 22:34:06,665 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-05 22:34:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 22:34:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 22:34:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 22:34:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 22:34:06,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 22:34:06,669 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 22:34:06,950 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 22:34:06,951 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-05 22:34:06,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:34:06 BoogieIcfgContainer [2020-10-05 22:34:06,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 22:34:06,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 22:34:06,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 22:34:06,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 22:34:06,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:34:05" (1/3) ... [2020-10-05 22:34:06,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bcd9413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:34:06, skipping insertion in model container [2020-10-05 22:34:06,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:34:06" (2/3) ... [2020-10-05 22:34:06,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bcd9413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:34:06, skipping insertion in model container [2020-10-05 22:34:06,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:34:06" (3/3) ... [2020-10-05 22:34:06,962 INFO L109 eAbstractionObserver]: Analyzing ICFG 45_monabsex1_vs.i [2020-10-05 22:34:06,979 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 22:34:06,980 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-05 22:34:06,987 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 22:34:06,988 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 22:34:07,010 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:07,011 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:07,011 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:07,012 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:07,012 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:07,013 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:07,013 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:07,013 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:07,013 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:07,014 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:07,014 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:07,014 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:07,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:07,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:07,020 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:07,021 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:07,021 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:07,022 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:07,022 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:07,022 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:07,050 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-05 22:34:07,072 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:34:07,072 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:34:07,072 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:34:07,073 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:34:07,073 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:34:07,073 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:34:07,073 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:34:07,073 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:34:07,088 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 33 transitions, 71 flow [2020-10-05 22:34:07,089 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 34 places, 33 transitions, 71 flow [2020-10-05 22:34:07,120 INFO L129 PetriNetUnfolder]: 3/41 cut-off events. [2020-10-05 22:34:07,120 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:34:07,125 INFO L80 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 41 events. 3/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 21. Up to 4 conditions per place. [2020-10-05 22:34:07,126 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 34 places, 33 transitions, 71 flow [2020-10-05 22:34:07,140 INFO L129 PetriNetUnfolder]: 3/41 cut-off events. [2020-10-05 22:34:07,140 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:34:07,141 INFO L80 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 41 events. 3/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 21. Up to 4 conditions per place. [2020-10-05 22:34:07,142 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 240 [2020-10-05 22:34:07,143 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:34:07,711 INFO L206 etLargeBlockEncoding]: Checked pairs total: 167 [2020-10-05 22:34:07,711 INFO L214 etLargeBlockEncoding]: Total number of compositions: 30 [2020-10-05 22:34:07,715 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 11 places, 8 transitions, 21 flow [2020-10-05 22:34:07,724 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19 states. [2020-10-05 22:34:07,727 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-10-05 22:34:07,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-05 22:34:07,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:07,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-05 22:34:07,735 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-05 22:34:07,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:07,741 INFO L82 PathProgramCache]: Analyzing trace with hash 4687883, now seen corresponding path program 1 times [2020-10-05 22:34:07,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:07,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262263444] [2020-10-05 22:34:07,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:07,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:34:07,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262263444] [2020-10-05 22:34:07,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:07,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:34:07,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675573128] [2020-10-05 22:34:07,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-05 22:34:07,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:07,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-05 22:34:07,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-05 22:34:07,953 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2020-10-05 22:34:07,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:07,967 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-10-05 22:34:07,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-05 22:34:07,969 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-10-05 22:34:07,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:07,979 INFO L225 Difference]: With dead ends: 11 [2020-10-05 22:34:07,980 INFO L226 Difference]: Without dead ends: 11 [2020-10-05 22:34:07,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-05 22:34:08,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-10-05 22:34:08,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-10-05 22:34:08,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-05 22:34:08,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-10-05 22:34:08,017 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2020-10-05 22:34:08,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:08,017 INFO L479 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-10-05 22:34:08,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-05 22:34:08,018 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-10-05 22:34:08,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-05 22:34:08,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:08,019 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-05 22:34:08,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 22:34:08,019 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-05 22:34:08,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:08,020 INFO L82 PathProgramCache]: Analyzing trace with hash 210024220, now seen corresponding path program 1 times [2020-10-05 22:34:08,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:08,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579326213] [2020-10-05 22:34:08,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-05 22:34:08,047 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-05 22:34:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-05 22:34:08,061 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-05 22:34:08,085 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-05 22:34:08,085 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-05 22:34:08,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 22:34:08,088 WARN L363 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-05 22:34:08,088 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-05 22:34:08,095 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,095 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,095 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,096 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,096 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,096 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,096 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,096 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,097 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,097 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,097 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,097 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,098 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,098 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,098 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,099 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,099 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,099 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,099 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,100 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,100 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,100 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,100 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,100 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,101 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,101 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,101 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,101 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,102 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,102 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,102 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,103 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,103 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,103 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,106 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,107 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,107 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,107 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,108 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,108 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:08,111 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-05 22:34:08,112 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:34:08,112 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:34:08,112 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:34:08,112 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:34:08,113 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:34:08,113 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:34:08,113 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:34:08,113 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:34:08,116 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 46 transitions, 104 flow [2020-10-05 22:34:08,116 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 48 places, 46 transitions, 104 flow [2020-10-05 22:34:08,132 INFO L129 PetriNetUnfolder]: 5/63 cut-off events. [2020-10-05 22:34:08,132 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-05 22:34:08,133 INFO L80 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 63 events. 5/63 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 125 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 42. Up to 6 conditions per place. [2020-10-05 22:34:08,135 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 48 places, 46 transitions, 104 flow [2020-10-05 22:34:08,148 INFO L129 PetriNetUnfolder]: 5/63 cut-off events. [2020-10-05 22:34:08,148 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-05 22:34:08,149 INFO L80 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 63 events. 5/63 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 125 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 42. Up to 6 conditions per place. [2020-10-05 22:34:08,151 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 792 [2020-10-05 22:34:08,151 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:34:08,824 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1029 [2020-10-05 22:34:08,824 INFO L214 etLargeBlockEncoding]: Total number of compositions: 37 [2020-10-05 22:34:08,825 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 13 transitions, 38 flow [2020-10-05 22:34:08,830 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 100 states. [2020-10-05 22:34:08,830 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2020-10-05 22:34:08,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-05 22:34:08,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:08,831 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-05 22:34:08,832 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:08,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:08,832 INFO L82 PathProgramCache]: Analyzing trace with hash 240626158, now seen corresponding path program 1 times [2020-10-05 22:34:08,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:08,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416672225] [2020-10-05 22:34:08,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:08,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:34:08,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416672225] [2020-10-05 22:34:08,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:08,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:34:08,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560844565] [2020-10-05 22:34:08,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:34:08,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:08,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:34:08,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:08,877 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 3 states. [2020-10-05 22:34:08,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:08,908 INFO L93 Difference]: Finished difference Result 96 states and 197 transitions. [2020-10-05 22:34:08,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:08,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-05 22:34:08,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:08,914 INFO L225 Difference]: With dead ends: 96 [2020-10-05 22:34:08,914 INFO L226 Difference]: Without dead ends: 96 [2020-10-05 22:34:08,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:08,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-10-05 22:34:08,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 84. [2020-10-05 22:34:08,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-05 22:34:08,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 180 transitions. [2020-10-05 22:34:08,934 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 180 transitions. Word has length 5 [2020-10-05 22:34:08,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:08,934 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 180 transitions. [2020-10-05 22:34:08,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:34:08,935 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 180 transitions. [2020-10-05 22:34:08,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 22:34:08,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:08,936 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:08,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 22:34:08,937 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:08,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:08,937 INFO L82 PathProgramCache]: Analyzing trace with hash 109807895, now seen corresponding path program 1 times [2020-10-05 22:34:08,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:08,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397698123] [2020-10-05 22:34:08,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:09,020 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-05 22:34:09,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397698123] [2020-10-05 22:34:09,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:09,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:34:09,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140673861] [2020-10-05 22:34:09,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:34:09,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:09,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:34:09,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:09,024 INFO L87 Difference]: Start difference. First operand 84 states and 180 transitions. Second operand 3 states. [2020-10-05 22:34:09,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:09,048 INFO L93 Difference]: Finished difference Result 84 states and 164 transitions. [2020-10-05 22:34:09,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:09,048 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-05 22:34:09,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:09,050 INFO L225 Difference]: With dead ends: 84 [2020-10-05 22:34:09,050 INFO L226 Difference]: Without dead ends: 84 [2020-10-05 22:34:09,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:09,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-05 22:34:09,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 76. [2020-10-05 22:34:09,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-05 22:34:09,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 154 transitions. [2020-10-05 22:34:09,063 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 154 transitions. Word has length 8 [2020-10-05 22:34:09,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:09,063 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 154 transitions. [2020-10-05 22:34:09,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:34:09,064 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 154 transitions. [2020-10-05 22:34:09,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 22:34:09,064 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:09,065 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:09,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 22:34:09,065 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:09,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:09,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1655579211, now seen corresponding path program 1 times [2020-10-05 22:34:09,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:09,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469721615] [2020-10-05 22:34:09,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:09,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:34:09,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469721615] [2020-10-05 22:34:09,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:09,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:34:09,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881347324] [2020-10-05 22:34:09,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:34:09,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:09,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:34:09,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:34:09,152 INFO L87 Difference]: Start difference. First operand 76 states and 154 transitions. Second operand 4 states. [2020-10-05 22:34:09,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:09,175 INFO L93 Difference]: Finished difference Result 68 states and 136 transitions. [2020-10-05 22:34:09,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:09,175 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-05 22:34:09,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:09,177 INFO L225 Difference]: With dead ends: 68 [2020-10-05 22:34:09,177 INFO L226 Difference]: Without dead ends: 68 [2020-10-05 22:34:09,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:34:09,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-05 22:34:09,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 64. [2020-10-05 22:34:09,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-05 22:34:09,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 129 transitions. [2020-10-05 22:34:09,185 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 129 transitions. Word has length 9 [2020-10-05 22:34:09,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:09,185 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 129 transitions. [2020-10-05 22:34:09,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:34:09,185 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 129 transitions. [2020-10-05 22:34:09,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 22:34:09,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:09,186 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2020-10-05 22:34:09,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 22:34:09,187 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:09,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:09,187 INFO L82 PathProgramCache]: Analyzing trace with hash -891005170, now seen corresponding path program 1 times [2020-10-05 22:34:09,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:09,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975493383] [2020-10-05 22:34:09,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:09,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-05 22:34:09,200 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-05 22:34:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-05 22:34:09,208 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-05 22:34:09,212 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-05 22:34:09,213 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-05 22:34:09,213 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 22:34:09,213 WARN L363 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-05 22:34:09,215 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-05 22:34:09,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,222 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,222 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,222 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,222 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,222 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,223 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,223 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,223 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,223 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,224 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,224 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,224 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,224 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,225 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,225 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,225 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,225 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,225 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,225 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,226 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,226 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,226 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,226 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,227 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,227 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,227 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,227 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,227 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,228 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,228 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,228 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,228 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,228 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,228 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,229 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,229 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,229 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,229 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,229 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,230 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,230 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,230 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,231 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,231 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,231 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,231 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,234 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,235 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,235 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,235 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,235 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,235 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,237 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,237 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,237 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,237 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,238 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,238 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:09,239 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-05 22:34:09,239 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:34:09,240 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:34:09,240 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:34:09,240 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:34:09,240 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:34:09,240 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:34:09,240 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:34:09,240 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:34:09,242 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 59 transitions, 139 flow [2020-10-05 22:34:09,242 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 62 places, 59 transitions, 139 flow [2020-10-05 22:34:09,257 INFO L129 PetriNetUnfolder]: 7/85 cut-off events. [2020-10-05 22:34:09,258 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-05 22:34:09,259 INFO L80 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 85 events. 7/85 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 205 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 67. Up to 8 conditions per place. [2020-10-05 22:34:09,261 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 62 places, 59 transitions, 139 flow [2020-10-05 22:34:09,273 INFO L129 PetriNetUnfolder]: 7/85 cut-off events. [2020-10-05 22:34:09,274 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-05 22:34:09,275 INFO L80 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 85 events. 7/85 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 205 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 67. Up to 8 conditions per place. [2020-10-05 22:34:09,277 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1656 [2020-10-05 22:34:09,277 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:34:09,974 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2190 [2020-10-05 22:34:09,975 INFO L214 etLargeBlockEncoding]: Total number of compositions: 48 [2020-10-05 22:34:09,975 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 17 transitions, 55 flow [2020-10-05 22:34:09,991 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 404 states. [2020-10-05 22:34:09,992 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states. [2020-10-05 22:34:09,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-05 22:34:09,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:09,993 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-05 22:34:09,993 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:09,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:09,994 INFO L82 PathProgramCache]: Analyzing trace with hash 359632331, now seen corresponding path program 1 times [2020-10-05 22:34:09,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:09,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299328094] [2020-10-05 22:34:09,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:10,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:10,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:34:10,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299328094] [2020-10-05 22:34:10,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:10,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:34:10,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099380342] [2020-10-05 22:34:10,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:34:10,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:10,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:34:10,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:10,042 INFO L87 Difference]: Start difference. First operand 404 states. Second operand 3 states. [2020-10-05 22:34:10,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:10,093 INFO L93 Difference]: Finished difference Result 447 states and 1247 transitions. [2020-10-05 22:34:10,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:10,096 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-05 22:34:10,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:10,102 INFO L225 Difference]: With dead ends: 447 [2020-10-05 22:34:10,103 INFO L226 Difference]: Without dead ends: 447 [2020-10-05 22:34:10,103 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:10,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-10-05 22:34:10,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 378. [2020-10-05 22:34:10,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2020-10-05 22:34:10,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 1099 transitions. [2020-10-05 22:34:10,150 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 1099 transitions. Word has length 5 [2020-10-05 22:34:10,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:10,150 INFO L479 AbstractCegarLoop]: Abstraction has 378 states and 1099 transitions. [2020-10-05 22:34:10,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:34:10,151 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 1099 transitions. [2020-10-05 22:34:10,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 22:34:10,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:10,153 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:10,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 22:34:10,153 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:10,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:10,154 INFO L82 PathProgramCache]: Analyzing trace with hash 2061810264, now seen corresponding path program 1 times [2020-10-05 22:34:10,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:10,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981453635] [2020-10-05 22:34:10,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:10,182 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-05 22:34:10,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981453635] [2020-10-05 22:34:10,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:10,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:34:10,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916830851] [2020-10-05 22:34:10,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:34:10,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:10,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:34:10,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:10,184 INFO L87 Difference]: Start difference. First operand 378 states and 1099 transitions. Second operand 3 states. [2020-10-05 22:34:10,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:10,213 INFO L93 Difference]: Finished difference Result 486 states and 1356 transitions. [2020-10-05 22:34:10,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:10,213 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-05 22:34:10,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:10,219 INFO L225 Difference]: With dead ends: 486 [2020-10-05 22:34:10,219 INFO L226 Difference]: Without dead ends: 486 [2020-10-05 22:34:10,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:10,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2020-10-05 22:34:10,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 412. [2020-10-05 22:34:10,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-10-05 22:34:10,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 1196 transitions. [2020-10-05 22:34:10,248 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 1196 transitions. Word has length 8 [2020-10-05 22:34:10,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:10,249 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 1196 transitions. [2020-10-05 22:34:10,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:34:10,249 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 1196 transitions. [2020-10-05 22:34:10,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 22:34:10,250 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:10,250 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:10,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-05 22:34:10,250 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:10,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:10,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1871610837, now seen corresponding path program 1 times [2020-10-05 22:34:10,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:10,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821904745] [2020-10-05 22:34:10,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:10,276 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:34:10,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821904745] [2020-10-05 22:34:10,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:10,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:34:10,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566154731] [2020-10-05 22:34:10,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:34:10,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:10,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:34:10,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:34:10,279 INFO L87 Difference]: Start difference. First operand 412 states and 1196 transitions. Second operand 4 states. [2020-10-05 22:34:10,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:10,308 INFO L93 Difference]: Finished difference Result 338 states and 962 transitions. [2020-10-05 22:34:10,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:10,308 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-05 22:34:10,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:10,311 INFO L225 Difference]: With dead ends: 338 [2020-10-05 22:34:10,312 INFO L226 Difference]: Without dead ends: 338 [2020-10-05 22:34:10,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:34:10,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-10-05 22:34:10,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 283. [2020-10-05 22:34:10,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-10-05 22:34:10,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 793 transitions. [2020-10-05 22:34:10,326 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 793 transitions. Word has length 9 [2020-10-05 22:34:10,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:10,327 INFO L479 AbstractCegarLoop]: Abstraction has 283 states and 793 transitions. [2020-10-05 22:34:10,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:34:10,327 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 793 transitions. [2020-10-05 22:34:10,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 22:34:10,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:10,328 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:10,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-05 22:34:10,328 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:10,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:10,329 INFO L82 PathProgramCache]: Analyzing trace with hash -508390409, now seen corresponding path program 1 times [2020-10-05 22:34:10,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:10,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449505074] [2020-10-05 22:34:10,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:10,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:10,356 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-05 22:34:10,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449505074] [2020-10-05 22:34:10,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:10,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:34:10,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95602405] [2020-10-05 22:34:10,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:34:10,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:10,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:34:10,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:34:10,359 INFO L87 Difference]: Start difference. First operand 283 states and 793 transitions. Second operand 4 states. [2020-10-05 22:34:10,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:10,390 INFO L93 Difference]: Finished difference Result 233 states and 641 transitions. [2020-10-05 22:34:10,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:10,390 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-05 22:34:10,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:10,392 INFO L225 Difference]: With dead ends: 233 [2020-10-05 22:34:10,393 INFO L226 Difference]: Without dead ends: 233 [2020-10-05 22:34:10,393 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:34:10,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-10-05 22:34:10,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 183. [2020-10-05 22:34:10,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-10-05 22:34:10,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 489 transitions. [2020-10-05 22:34:10,404 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 489 transitions. Word has length 9 [2020-10-05 22:34:10,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:10,404 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 489 transitions. [2020-10-05 22:34:10,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:34:10,404 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 489 transitions. [2020-10-05 22:34:10,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 22:34:10,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:10,406 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:10,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-05 22:34:10,406 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:10,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:10,407 INFO L82 PathProgramCache]: Analyzing trace with hash 960774069, now seen corresponding path program 1 times [2020-10-05 22:34:10,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:10,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105838843] [2020-10-05 22:34:10,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:10,445 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-05 22:34:10,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105838843] [2020-10-05 22:34:10,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:10,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:34:10,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395655487] [2020-10-05 22:34:10,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:34:10,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:10,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:34:10,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:10,451 INFO L87 Difference]: Start difference. First operand 183 states and 489 transitions. Second operand 3 states. [2020-10-05 22:34:10,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:10,472 INFO L93 Difference]: Finished difference Result 243 states and 634 transitions. [2020-10-05 22:34:10,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:10,472 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-05 22:34:10,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:10,474 INFO L225 Difference]: With dead ends: 243 [2020-10-05 22:34:10,474 INFO L226 Difference]: Without dead ends: 243 [2020-10-05 22:34:10,475 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:10,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-10-05 22:34:10,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 211. [2020-10-05 22:34:10,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-10-05 22:34:10,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 570 transitions. [2020-10-05 22:34:10,483 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 570 transitions. Word has length 11 [2020-10-05 22:34:10,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:10,484 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 570 transitions. [2020-10-05 22:34:10,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:34:10,485 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 570 transitions. [2020-10-05 22:34:10,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:34:10,486 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:10,486 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:10,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-05 22:34:10,486 INFO L427 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:10,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:10,487 INFO L82 PathProgramCache]: Analyzing trace with hash -280773966, now seen corresponding path program 1 times [2020-10-05 22:34:10,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:10,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313124562] [2020-10-05 22:34:10,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:10,512 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-05 22:34:10,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313124562] [2020-10-05 22:34:10,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:10,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:34:10,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839671316] [2020-10-05 22:34:10,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:34:10,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:10,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:34:10,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:34:10,514 INFO L87 Difference]: Start difference. First operand 211 states and 570 transitions. Second operand 4 states. [2020-10-05 22:34:10,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:10,541 INFO L93 Difference]: Finished difference Result 179 states and 474 transitions. [2020-10-05 22:34:10,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:10,542 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 22:34:10,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:10,544 INFO L225 Difference]: With dead ends: 179 [2020-10-05 22:34:10,544 INFO L226 Difference]: Without dead ends: 179 [2020-10-05 22:34:10,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:34:10,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-10-05 22:34:10,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 147. [2020-10-05 22:34:10,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-05 22:34:10,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 378 transitions. [2020-10-05 22:34:10,550 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 378 transitions. Word has length 12 [2020-10-05 22:34:10,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:10,551 INFO L479 AbstractCegarLoop]: Abstraction has 147 states and 378 transitions. [2020-10-05 22:34:10,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:34:10,551 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 378 transitions. [2020-10-05 22:34:10,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:34:10,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:10,552 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2020-10-05 22:34:10,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-05 22:34:10,552 INFO L427 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:10,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:10,553 INFO L82 PathProgramCache]: Analyzing trace with hash -280874677, now seen corresponding path program 1 times [2020-10-05 22:34:10,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:10,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123171728] [2020-10-05 22:34:10,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-05 22:34:10,562 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-05 22:34:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-05 22:34:10,569 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-05 22:34:10,574 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-05 22:34:10,574 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-05 22:34:10,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-05 22:34:10,575 WARN L363 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-05 22:34:10,575 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-05 22:34:10,582 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,583 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,583 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,583 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,583 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,583 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,584 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,584 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,584 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,584 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,584 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,584 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,585 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,585 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,585 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,585 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,585 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,586 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,586 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,586 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,586 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,586 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,586 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,587 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,587 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,587 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,587 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,587 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,587 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,588 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,588 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,588 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,588 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,588 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,588 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,589 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,589 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,589 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,589 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,589 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,589 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,590 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,590 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,590 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,590 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,590 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,590 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,591 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,591 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,591 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,591 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,591 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,591 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,592 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,592 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,592 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,592 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,593 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,593 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,593 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,593 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,593 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,597 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,598 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,598 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,598 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,598 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,598 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,600 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,601 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,601 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,601 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,601 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,601 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,603 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,604 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,604 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,604 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,604 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,604 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:10,605 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-05 22:34:10,606 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:34:10,606 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:34:10,606 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:34:10,606 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:34:10,606 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:34:10,606 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:34:10,606 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:34:10,607 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:34:10,608 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 72 transitions, 176 flow [2020-10-05 22:34:10,609 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 72 transitions, 176 flow [2020-10-05 22:34:10,624 INFO L129 PetriNetUnfolder]: 9/107 cut-off events. [2020-10-05 22:34:10,624 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-05 22:34:10,625 INFO L80 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 107 events. 9/107 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 289 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 93. Up to 10 conditions per place. [2020-10-05 22:34:10,649 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 72 transitions, 176 flow [2020-10-05 22:34:10,662 INFO L129 PetriNetUnfolder]: 9/107 cut-off events. [2020-10-05 22:34:10,662 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-05 22:34:10,663 INFO L80 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 107 events. 9/107 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 289 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 93. Up to 10 conditions per place. [2020-10-05 22:34:10,667 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2832 [2020-10-05 22:34:10,667 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:34:11,525 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4290 [2020-10-05 22:34:11,525 INFO L214 etLargeBlockEncoding]: Total number of compositions: 63 [2020-10-05 22:34:11,526 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 23 transitions, 78 flow [2020-10-05 22:34:11,619 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1620 states. [2020-10-05 22:34:11,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states. [2020-10-05 22:34:11,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-05 22:34:11,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:11,620 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-05 22:34:11,620 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-05 22:34:11,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:11,621 INFO L82 PathProgramCache]: Analyzing trace with hash 500888133, now seen corresponding path program 1 times [2020-10-05 22:34:11,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:11,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346622960] [2020-10-05 22:34:11,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:11,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:11,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:34:11,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346622960] [2020-10-05 22:34:11,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:11,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:34:11,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195241197] [2020-10-05 22:34:11,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:34:11,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:11,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:34:11,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:11,638 INFO L87 Difference]: Start difference. First operand 1620 states. Second operand 3 states. [2020-10-05 22:34:11,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:11,706 INFO L93 Difference]: Finished difference Result 1878 states and 6626 transitions. [2020-10-05 22:34:11,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:11,707 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-05 22:34:11,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:11,725 INFO L225 Difference]: With dead ends: 1878 [2020-10-05 22:34:11,725 INFO L226 Difference]: Without dead ends: 1878 [2020-10-05 22:34:11,725 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:11,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2020-10-05 22:34:11,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1572. [2020-10-05 22:34:11,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1572 states. [2020-10-05 22:34:11,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 5747 transitions. [2020-10-05 22:34:11,833 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 5747 transitions. Word has length 5 [2020-10-05 22:34:11,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:11,833 INFO L479 AbstractCegarLoop]: Abstraction has 1572 states and 5747 transitions. [2020-10-05 22:34:11,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:34:11,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 5747 transitions. [2020-10-05 22:34:11,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 22:34:11,834 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:11,834 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:11,835 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-05 22:34:11,835 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-05 22:34:11,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:11,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1111452433, now seen corresponding path program 1 times [2020-10-05 22:34:11,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:11,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243014156] [2020-10-05 22:34:11,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:11,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:11,870 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-05 22:34:11,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243014156] [2020-10-05 22:34:11,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:11,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:34:11,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172837677] [2020-10-05 22:34:11,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:34:11,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:11,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:34:11,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:11,872 INFO L87 Difference]: Start difference. First operand 1572 states and 5747 transitions. Second operand 3 states. [2020-10-05 22:34:11,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:11,930 INFO L93 Difference]: Finished difference Result 2193 states and 7798 transitions. [2020-10-05 22:34:11,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:11,930 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-05 22:34:11,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:11,951 INFO L225 Difference]: With dead ends: 2193 [2020-10-05 22:34:11,951 INFO L226 Difference]: Without dead ends: 2193 [2020-10-05 22:34:11,952 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:11,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2020-10-05 22:34:12,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 1828. [2020-10-05 22:34:12,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1828 states. [2020-10-05 22:34:12,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1828 states to 1828 states and 6732 transitions. [2020-10-05 22:34:12,066 INFO L78 Accepts]: Start accepts. Automaton has 1828 states and 6732 transitions. Word has length 8 [2020-10-05 22:34:12,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:12,066 INFO L479 AbstractCegarLoop]: Abstraction has 1828 states and 6732 transitions. [2020-10-05 22:34:12,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:34:12,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1828 states and 6732 transitions. [2020-10-05 22:34:12,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 22:34:12,067 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:12,067 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:12,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-05 22:34:12,067 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-05 22:34:12,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:12,068 INFO L82 PathProgramCache]: Analyzing trace with hash -231363678, now seen corresponding path program 1 times [2020-10-05 22:34:12,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:12,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976781372] [2020-10-05 22:34:12,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:12,113 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:34:12,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976781372] [2020-10-05 22:34:12,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:12,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:34:12,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990143896] [2020-10-05 22:34:12,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:34:12,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:12,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:34:12,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:34:12,116 INFO L87 Difference]: Start difference. First operand 1828 states and 6732 transitions. Second operand 4 states. [2020-10-05 22:34:12,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:12,169 INFO L93 Difference]: Finished difference Result 1463 states and 5301 transitions. [2020-10-05 22:34:12,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:12,170 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-05 22:34:12,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:12,183 INFO L225 Difference]: With dead ends: 1463 [2020-10-05 22:34:12,183 INFO L226 Difference]: Without dead ends: 1463 [2020-10-05 22:34:12,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:34:12,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2020-10-05 22:34:12,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 1177. [2020-10-05 22:34:12,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1177 states. [2020-10-05 22:34:12,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 4196 transitions. [2020-10-05 22:34:12,247 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 4196 transitions. Word has length 9 [2020-10-05 22:34:12,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:12,247 INFO L479 AbstractCegarLoop]: Abstraction has 1177 states and 4196 transitions. [2020-10-05 22:34:12,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:34:12,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 4196 transitions. [2020-10-05 22:34:12,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 22:34:12,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:12,248 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:12,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-05 22:34:12,249 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-05 22:34:12,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:12,249 INFO L82 PathProgramCache]: Analyzing trace with hash 95288963, now seen corresponding path program 1 times [2020-10-05 22:34:12,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:12,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004876046] [2020-10-05 22:34:12,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:12,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-05 22:34:12,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004876046] [2020-10-05 22:34:12,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:12,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:34:12,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148679407] [2020-10-05 22:34:12,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:34:12,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:12,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:34:12,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:34:12,287 INFO L87 Difference]: Start difference. First operand 1177 states and 4196 transitions. Second operand 4 states. [2020-10-05 22:34:12,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:12,327 INFO L93 Difference]: Finished difference Result 950 states and 3337 transitions. [2020-10-05 22:34:12,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:12,328 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-05 22:34:12,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:12,336 INFO L225 Difference]: With dead ends: 950 [2020-10-05 22:34:12,336 INFO L226 Difference]: Without dead ends: 950 [2020-10-05 22:34:12,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:34:12,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2020-10-05 22:34:12,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 723. [2020-10-05 22:34:12,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2020-10-05 22:34:12,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 2478 transitions. [2020-10-05 22:34:12,368 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 2478 transitions. Word has length 9 [2020-10-05 22:34:12,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:12,368 INFO L479 AbstractCegarLoop]: Abstraction has 723 states and 2478 transitions. [2020-10-05 22:34:12,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:34:12,369 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 2478 transitions. [2020-10-05 22:34:12,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 22:34:12,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:12,369 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:12,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-05 22:34:12,370 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-05 22:34:12,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:12,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1255400151, now seen corresponding path program 1 times [2020-10-05 22:34:12,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:12,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674263520] [2020-10-05 22:34:12,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:12,384 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-05 22:34:12,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674263520] [2020-10-05 22:34:12,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:12,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:34:12,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201045130] [2020-10-05 22:34:12,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:34:12,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:12,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:34:12,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:12,386 INFO L87 Difference]: Start difference. First operand 723 states and 2478 transitions. Second operand 3 states. [2020-10-05 22:34:12,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:12,436 INFO L93 Difference]: Finished difference Result 1044 states and 3505 transitions. [2020-10-05 22:34:12,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:12,436 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-05 22:34:12,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:12,445 INFO L225 Difference]: With dead ends: 1044 [2020-10-05 22:34:12,445 INFO L226 Difference]: Without dead ends: 1044 [2020-10-05 22:34:12,446 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:12,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2020-10-05 22:34:12,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 880. [2020-10-05 22:34:12,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2020-10-05 22:34:12,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 3058 transitions. [2020-10-05 22:34:12,482 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 3058 transitions. Word has length 11 [2020-10-05 22:34:12,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:12,483 INFO L479 AbstractCegarLoop]: Abstraction has 880 states and 3058 transitions. [2020-10-05 22:34:12,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:34:12,483 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 3058 transitions. [2020-10-05 22:34:12,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:34:12,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:12,484 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:12,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-05 22:34:12,484 INFO L427 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-05 22:34:12,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:12,484 INFO L82 PathProgramCache]: Analyzing trace with hash 262700715, now seen corresponding path program 1 times [2020-10-05 22:34:12,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:12,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908337686] [2020-10-05 22:34:12,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:12,503 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-05 22:34:12,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908337686] [2020-10-05 22:34:12,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:12,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:34:12,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613371188] [2020-10-05 22:34:12,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:34:12,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:12,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:34:12,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:34:12,505 INFO L87 Difference]: Start difference. First operand 880 states and 3058 transitions. Second operand 4 states. [2020-10-05 22:34:12,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:12,542 INFO L93 Difference]: Finished difference Result 716 states and 2447 transitions. [2020-10-05 22:34:12,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:12,543 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 22:34:12,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:12,549 INFO L225 Difference]: With dead ends: 716 [2020-10-05 22:34:12,549 INFO L226 Difference]: Without dead ends: 716 [2020-10-05 22:34:12,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:34:12,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-10-05 22:34:12,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 552. [2020-10-05 22:34:12,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2020-10-05 22:34:12,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 1836 transitions. [2020-10-05 22:34:12,572 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 1836 transitions. Word has length 12 [2020-10-05 22:34:12,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:12,572 INFO L479 AbstractCegarLoop]: Abstraction has 552 states and 1836 transitions. [2020-10-05 22:34:12,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:34:12,572 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 1836 transitions. [2020-10-05 22:34:12,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 22:34:12,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:12,573 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:12,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-05 22:34:12,574 INFO L427 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-05 22:34:12,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:12,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1066051238, now seen corresponding path program 1 times [2020-10-05 22:34:12,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:12,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330405850] [2020-10-05 22:34:12,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:12,589 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-05 22:34:12,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330405850] [2020-10-05 22:34:12,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:12,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:34:12,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121510920] [2020-10-05 22:34:12,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:34:12,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:12,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:34:12,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:12,591 INFO L87 Difference]: Start difference. First operand 552 states and 1836 transitions. Second operand 3 states. [2020-10-05 22:34:12,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:12,617 INFO L93 Difference]: Finished difference Result 756 states and 2485 transitions. [2020-10-05 22:34:12,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:12,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-05 22:34:12,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:12,623 INFO L225 Difference]: With dead ends: 756 [2020-10-05 22:34:12,624 INFO L226 Difference]: Without dead ends: 756 [2020-10-05 22:34:12,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:12,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-10-05 22:34:12,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 652. [2020-10-05 22:34:12,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2020-10-05 22:34:12,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 2203 transitions. [2020-10-05 22:34:12,650 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 2203 transitions. Word has length 14 [2020-10-05 22:34:12,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:12,650 INFO L479 AbstractCegarLoop]: Abstraction has 652 states and 2203 transitions. [2020-10-05 22:34:12,650 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:34:12,651 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 2203 transitions. [2020-10-05 22:34:12,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 22:34:12,652 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:12,652 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:12,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-05 22:34:12,652 INFO L427 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-05 22:34:12,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:12,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1312017708, now seen corresponding path program 1 times [2020-10-05 22:34:12,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:12,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440701376] [2020-10-05 22:34:12,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-05 22:34:12,661 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-05 22:34:12,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-05 22:34:12,667 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-05 22:34:12,672 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-05 22:34:12,672 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-05 22:34:12,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-05 22:34:12,673 WARN L363 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-05 22:34:12,673 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-05 22:34:12,680 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,681 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,681 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,681 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,681 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,681 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,681 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,682 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,682 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,682 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,682 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,682 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,683 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,683 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,683 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,683 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,683 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,683 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,683 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,684 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,684 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,684 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,684 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,684 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,684 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,684 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,685 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,685 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,685 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,685 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,685 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,685 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,686 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,686 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,686 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,686 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,686 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,686 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,687 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,687 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,687 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,687 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,687 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,687 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,688 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,688 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,688 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,688 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,688 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,688 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,688 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,689 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,689 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,689 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,689 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,689 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,690 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,690 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,690 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,690 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,690 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,690 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,690 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,690 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,691 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,691 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,691 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,691 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,691 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,691 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,692 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,692 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,692 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,692 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,692 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,692 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,694 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,694 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,694 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,695 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,695 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,695 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,697 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,697 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,697 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,697 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,697 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,698 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,699 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,699 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,699 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,700 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,700 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,700 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,701 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,702 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,702 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,702 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,702 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,702 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:12,703 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-05 22:34:12,704 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:34:12,704 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:34:12,704 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:34:12,704 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:34:12,704 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:34:12,704 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:34:12,704 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:34:12,704 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:34:12,706 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 85 transitions, 215 flow [2020-10-05 22:34:12,706 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 90 places, 85 transitions, 215 flow [2020-10-05 22:34:12,720 INFO L129 PetriNetUnfolder]: 11/129 cut-off events. [2020-10-05 22:34:12,721 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-05 22:34:12,722 INFO L80 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 129 events. 11/129 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 368 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 121. Up to 12 conditions per place. [2020-10-05 22:34:12,729 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 90 places, 85 transitions, 215 flow [2020-10-05 22:34:12,741 INFO L129 PetriNetUnfolder]: 11/129 cut-off events. [2020-10-05 22:34:12,742 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-05 22:34:12,743 INFO L80 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 129 events. 11/129 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 368 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 121. Up to 12 conditions per place. [2020-10-05 22:34:12,748 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 4320 [2020-10-05 22:34:12,749 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:34:13,796 INFO L206 etLargeBlockEncoding]: Checked pairs total: 6467 [2020-10-05 22:34:13,796 INFO L214 etLargeBlockEncoding]: Total number of compositions: 76 [2020-10-05 22:34:13,796 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 28 transitions, 101 flow [2020-10-05 22:34:14,325 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6484 states. [2020-10-05 22:34:14,325 INFO L276 IsEmpty]: Start isEmpty. Operand 6484 states. [2020-10-05 22:34:14,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-05 22:34:14,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:14,326 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-05 22:34:14,326 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:14,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:14,326 INFO L82 PathProgramCache]: Analyzing trace with hash 666270871, now seen corresponding path program 1 times [2020-10-05 22:34:14,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:14,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143812182] [2020-10-05 22:34:14,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:14,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:34:14,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143812182] [2020-10-05 22:34:14,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:14,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:34:14,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468028341] [2020-10-05 22:34:14,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:34:14,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:14,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:34:14,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:14,346 INFO L87 Difference]: Start difference. First operand 6484 states. Second operand 3 states. [2020-10-05 22:34:14,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:14,512 INFO L93 Difference]: Finished difference Result 7629 states and 32588 transitions. [2020-10-05 22:34:14,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:14,513 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-05 22:34:14,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:14,578 INFO L225 Difference]: With dead ends: 7629 [2020-10-05 22:34:14,578 INFO L226 Difference]: Without dead ends: 7629 [2020-10-05 22:34:14,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:14,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7629 states. [2020-10-05 22:34:14,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7629 to 6366. [2020-10-05 22:34:14,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6366 states. [2020-10-05 22:34:14,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6366 states to 6366 states and 28029 transitions. [2020-10-05 22:34:14,970 INFO L78 Accepts]: Start accepts. Automaton has 6366 states and 28029 transitions. Word has length 5 [2020-10-05 22:34:14,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:14,970 INFO L479 AbstractCegarLoop]: Abstraction has 6366 states and 28029 transitions. [2020-10-05 22:34:14,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:34:14,970 INFO L276 IsEmpty]: Start isEmpty. Operand 6366 states and 28029 transitions. [2020-10-05 22:34:14,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 22:34:14,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:14,971 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:14,971 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-05 22:34:14,971 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:14,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:14,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1690072825, now seen corresponding path program 1 times [2020-10-05 22:34:14,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:14,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859537656] [2020-10-05 22:34:14,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:14,985 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-05 22:34:14,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859537656] [2020-10-05 22:34:14,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:14,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:34:14,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317239421] [2020-10-05 22:34:14,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:34:14,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:14,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:34:14,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:14,987 INFO L87 Difference]: Start difference. First operand 6366 states and 28029 transitions. Second operand 3 states. [2020-10-05 22:34:15,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:15,181 INFO L93 Difference]: Finished difference Result 9120 states and 39254 transitions. [2020-10-05 22:34:15,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:15,182 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-05 22:34:15,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:15,228 INFO L225 Difference]: With dead ends: 9120 [2020-10-05 22:34:15,228 INFO L226 Difference]: Without dead ends: 9120 [2020-10-05 22:34:15,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:15,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9120 states. [2020-10-05 22:34:16,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9120 to 7564. [2020-10-05 22:34:16,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7564 states. [2020-10-05 22:34:16,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7564 states to 7564 states and 33556 transitions. [2020-10-05 22:34:16,327 INFO L78 Accepts]: Start accepts. Automaton has 7564 states and 33556 transitions. Word has length 8 [2020-10-05 22:34:16,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:16,328 INFO L479 AbstractCegarLoop]: Abstraction has 7564 states and 33556 transitions. [2020-10-05 22:34:16,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:34:16,328 INFO L276 IsEmpty]: Start isEmpty. Operand 7564 states and 33556 transitions. [2020-10-05 22:34:16,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 22:34:16,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:16,329 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:16,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-05 22:34:16,329 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:16,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:16,329 INFO L82 PathProgramCache]: Analyzing trace with hash 868276956, now seen corresponding path program 1 times [2020-10-05 22:34:16,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:16,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444209401] [2020-10-05 22:34:16,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:16,360 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:34:16,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444209401] [2020-10-05 22:34:16,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:16,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:34:16,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810536134] [2020-10-05 22:34:16,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:34:16,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:16,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:34:16,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:34:16,364 INFO L87 Difference]: Start difference. First operand 7564 states and 33556 transitions. Second operand 4 states. [2020-10-05 22:34:16,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:16,439 INFO L93 Difference]: Finished difference Result 6008 states and 26302 transitions. [2020-10-05 22:34:16,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:16,439 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-05 22:34:16,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:16,468 INFO L225 Difference]: With dead ends: 6008 [2020-10-05 22:34:16,468 INFO L226 Difference]: Without dead ends: 6008 [2020-10-05 22:34:16,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:34:16,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6008 states. [2020-10-05 22:34:16,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6008 to 4771. [2020-10-05 22:34:16,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4771 states. [2020-10-05 22:34:16,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4771 states to 4771 states and 20598 transitions. [2020-10-05 22:34:16,744 INFO L78 Accepts]: Start accepts. Automaton has 4771 states and 20598 transitions. Word has length 9 [2020-10-05 22:34:16,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:16,744 INFO L479 AbstractCegarLoop]: Abstraction has 4771 states and 20598 transitions. [2020-10-05 22:34:16,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:34:16,744 INFO L276 IsEmpty]: Start isEmpty. Operand 4771 states and 20598 transitions. [2020-10-05 22:34:16,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 22:34:16,745 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:16,745 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:16,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-05 22:34:16,746 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:16,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:16,746 INFO L82 PathProgramCache]: Analyzing trace with hash 852652394, now seen corresponding path program 1 times [2020-10-05 22:34:16,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:16,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647791507] [2020-10-05 22:34:16,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:16,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:16,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-05 22:34:16,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647791507] [2020-10-05 22:34:16,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:16,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:34:16,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312659063] [2020-10-05 22:34:16,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:34:16,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:16,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:34:16,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:34:16,775 INFO L87 Difference]: Start difference. First operand 4771 states and 20598 transitions. Second operand 4 states. [2020-10-05 22:34:16,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:16,828 INFO L93 Difference]: Finished difference Result 3827 states and 16326 transitions. [2020-10-05 22:34:16,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:16,829 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-05 22:34:16,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:16,844 INFO L225 Difference]: With dead ends: 3827 [2020-10-05 22:34:16,844 INFO L226 Difference]: Without dead ends: 3827 [2020-10-05 22:34:16,845 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:34:16,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3827 states. [2020-10-05 22:34:17,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3827 to 2883. [2020-10-05 22:34:17,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2883 states. [2020-10-05 22:34:17,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2883 states to 2883 states and 12054 transitions. [2020-10-05 22:34:17,095 INFO L78 Accepts]: Start accepts. Automaton has 2883 states and 12054 transitions. Word has length 9 [2020-10-05 22:34:17,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:17,096 INFO L479 AbstractCegarLoop]: Abstraction has 2883 states and 12054 transitions. [2020-10-05 22:34:17,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:34:17,096 INFO L276 IsEmpty]: Start isEmpty. Operand 2883 states and 12054 transitions. [2020-10-05 22:34:17,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 22:34:17,096 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:17,096 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:17,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-05 22:34:17,096 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:17,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:17,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1095418705, now seen corresponding path program 1 times [2020-10-05 22:34:17,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:17,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700995055] [2020-10-05 22:34:17,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:17,112 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-05 22:34:17,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700995055] [2020-10-05 22:34:17,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:17,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:34:17,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787325963] [2020-10-05 22:34:17,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:34:17,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:17,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:34:17,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:17,114 INFO L87 Difference]: Start difference. First operand 2883 states and 12054 transitions. Second operand 3 states. [2020-10-05 22:34:17,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:17,171 INFO L93 Difference]: Finished difference Result 4275 states and 17545 transitions. [2020-10-05 22:34:17,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:17,171 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-05 22:34:17,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:17,187 INFO L225 Difference]: With dead ends: 4275 [2020-10-05 22:34:17,187 INFO L226 Difference]: Without dead ends: 4275 [2020-10-05 22:34:17,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:17,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4275 states. [2020-10-05 22:34:17,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4275 to 3574. [2020-10-05 22:34:17,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3574 states. [2020-10-05 22:34:17,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3574 states to 3574 states and 15125 transitions. [2020-10-05 22:34:17,333 INFO L78 Accepts]: Start accepts. Automaton has 3574 states and 15125 transitions. Word has length 11 [2020-10-05 22:34:17,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:17,333 INFO L479 AbstractCegarLoop]: Abstraction has 3574 states and 15125 transitions. [2020-10-05 22:34:17,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:34:17,333 INFO L276 IsEmpty]: Start isEmpty. Operand 3574 states and 15125 transitions. [2020-10-05 22:34:17,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:34:17,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:17,334 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:17,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-05 22:34:17,334 INFO L427 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:17,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:17,335 INFO L82 PathProgramCache]: Analyzing trace with hash 401760447, now seen corresponding path program 1 times [2020-10-05 22:34:17,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:17,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139235048] [2020-10-05 22:34:17,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:17,353 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-05 22:34:17,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139235048] [2020-10-05 22:34:17,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:17,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:34:17,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535649216] [2020-10-05 22:34:17,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:34:17,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:17,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:34:17,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:34:17,355 INFO L87 Difference]: Start difference. First operand 3574 states and 15125 transitions. Second operand 4 states. [2020-10-05 22:34:17,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:17,406 INFO L93 Difference]: Finished difference Result 2873 states and 12004 transitions. [2020-10-05 22:34:17,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:17,406 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 22:34:17,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:17,417 INFO L225 Difference]: With dead ends: 2873 [2020-10-05 22:34:17,417 INFO L226 Difference]: Without dead ends: 2873 [2020-10-05 22:34:17,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:34:17,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2873 states. [2020-10-05 22:34:17,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2873 to 2172. [2020-10-05 22:34:17,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2172 states. [2020-10-05 22:34:17,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2172 states to 2172 states and 8883 transitions. [2020-10-05 22:34:17,503 INFO L78 Accepts]: Start accepts. Automaton has 2172 states and 8883 transitions. Word has length 12 [2020-10-05 22:34:17,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:17,503 INFO L479 AbstractCegarLoop]: Abstraction has 2172 states and 8883 transitions. [2020-10-05 22:34:17,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:34:17,504 INFO L276 IsEmpty]: Start isEmpty. Operand 2172 states and 8883 transitions. [2020-10-05 22:34:17,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 22:34:17,504 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:17,504 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:17,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-05 22:34:17,505 INFO L427 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:17,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:17,505 INFO L82 PathProgramCache]: Analyzing trace with hash -596519610, now seen corresponding path program 1 times [2020-10-05 22:34:17,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:17,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972549173] [2020-10-05 22:34:17,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:17,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:17,520 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-05 22:34:17,520 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972549173] [2020-10-05 22:34:17,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:17,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:34:17,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332550321] [2020-10-05 22:34:17,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:34:17,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:17,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:34:17,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:17,522 INFO L87 Difference]: Start difference. First operand 2172 states and 8883 transitions. Second operand 3 states. [2020-10-05 22:34:17,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:17,567 INFO L93 Difference]: Finished difference Result 3177 states and 12799 transitions. [2020-10-05 22:34:17,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:17,567 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-05 22:34:17,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:17,577 INFO L225 Difference]: With dead ends: 3177 [2020-10-05 22:34:17,577 INFO L226 Difference]: Without dead ends: 3177 [2020-10-05 22:34:17,578 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:17,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3177 states. [2020-10-05 22:34:17,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3177 to 2671. [2020-10-05 22:34:17,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2671 states. [2020-10-05 22:34:17,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2671 states to 2671 states and 11075 transitions. [2020-10-05 22:34:17,695 INFO L78 Accepts]: Start accepts. Automaton has 2671 states and 11075 transitions. Word has length 14 [2020-10-05 22:34:17,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:17,696 INFO L479 AbstractCegarLoop]: Abstraction has 2671 states and 11075 transitions. [2020-10-05 22:34:17,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:34:17,696 INFO L276 IsEmpty]: Start isEmpty. Operand 2671 states and 11075 transitions. [2020-10-05 22:34:17,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 22:34:17,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:17,697 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:17,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-05 22:34:17,698 INFO L427 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:17,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:17,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1312236012, now seen corresponding path program 1 times [2020-10-05 22:34:17,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:17,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896787910] [2020-10-05 22:34:17,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:17,720 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-05 22:34:17,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896787910] [2020-10-05 22:34:17,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:17,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:34:17,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515654776] [2020-10-05 22:34:17,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:34:17,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:17,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:34:17,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:34:17,723 INFO L87 Difference]: Start difference. First operand 2671 states and 11075 transitions. Second operand 4 states. [2020-10-05 22:34:17,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:17,887 INFO L93 Difference]: Finished difference Result 2165 states and 8845 transitions. [2020-10-05 22:34:17,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:17,888 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-05 22:34:17,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:17,896 INFO L225 Difference]: With dead ends: 2165 [2020-10-05 22:34:17,896 INFO L226 Difference]: Without dead ends: 2165 [2020-10-05 22:34:17,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:34:17,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2020-10-05 22:34:17,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 1659. [2020-10-05 22:34:17,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1659 states. [2020-10-05 22:34:17,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1659 states to 1659 states and 6615 transitions. [2020-10-05 22:34:17,956 INFO L78 Accepts]: Start accepts. Automaton has 1659 states and 6615 transitions. Word has length 15 [2020-10-05 22:34:17,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:17,956 INFO L479 AbstractCegarLoop]: Abstraction has 1659 states and 6615 transitions. [2020-10-05 22:34:17,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:34:17,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1659 states and 6615 transitions. [2020-10-05 22:34:17,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 22:34:17,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:17,958 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:17,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-05 22:34:17,958 INFO L427 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:17,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:17,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1514810044, now seen corresponding path program 1 times [2020-10-05 22:34:17,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:17,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362392530] [2020-10-05 22:34:17,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:17,976 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-05 22:34:17,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362392530] [2020-10-05 22:34:17,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:17,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:34:17,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581519803] [2020-10-05 22:34:17,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:34:17,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:17,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:34:17,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:17,979 INFO L87 Difference]: Start difference. First operand 1659 states and 6615 transitions. Second operand 3 states. [2020-10-05 22:34:18,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:18,017 INFO L93 Difference]: Finished difference Result 2295 states and 9088 transitions. [2020-10-05 22:34:18,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:18,017 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-05 22:34:18,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:18,027 INFO L225 Difference]: With dead ends: 2295 [2020-10-05 22:34:18,027 INFO L226 Difference]: Without dead ends: 2295 [2020-10-05 22:34:18,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:18,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2020-10-05 22:34:18,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 1975. [2020-10-05 22:34:18,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1975 states. [2020-10-05 22:34:18,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1975 states to 1975 states and 8000 transitions. [2020-10-05 22:34:18,095 INFO L78 Accepts]: Start accepts. Automaton has 1975 states and 8000 transitions. Word has length 17 [2020-10-05 22:34:18,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:18,095 INFO L479 AbstractCegarLoop]: Abstraction has 1975 states and 8000 transitions. [2020-10-05 22:34:18,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:34:18,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1975 states and 8000 transitions. [2020-10-05 22:34:18,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-05 22:34:18,097 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:18,097 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:18,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-05 22:34:18,098 INFO L427 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:18,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:18,098 INFO L82 PathProgramCache]: Analyzing trace with hash -285527274, now seen corresponding path program 1 times [2020-10-05 22:34:18,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:18,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351023768] [2020-10-05 22:34:18,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:18,128 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-05 22:34:18,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351023768] [2020-10-05 22:34:18,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:18,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:34:18,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886479954] [2020-10-05 22:34:18,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:34:18,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:18,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:34:18,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:34:18,132 INFO L87 Difference]: Start difference. First operand 1975 states and 8000 transitions. Second operand 4 states. [2020-10-05 22:34:18,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:18,169 INFO L93 Difference]: Finished difference Result 1655 states and 6592 transitions. [2020-10-05 22:34:18,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:18,169 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-05 22:34:18,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:18,175 INFO L225 Difference]: With dead ends: 1655 [2020-10-05 22:34:18,175 INFO L226 Difference]: Without dead ends: 1655 [2020-10-05 22:34:18,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:34:18,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2020-10-05 22:34:18,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1335. [2020-10-05 22:34:18,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1335 states. [2020-10-05 22:34:18,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 5184 transitions. [2020-10-05 22:34:18,222 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 5184 transitions. Word has length 18 [2020-10-05 22:34:18,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:18,223 INFO L479 AbstractCegarLoop]: Abstraction has 1335 states and 5184 transitions. [2020-10-05 22:34:18,223 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:34:18,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 5184 transitions. [2020-10-05 22:34:18,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-05 22:34:18,225 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:18,225 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:18,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-05 22:34:18,226 INFO L427 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:18,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:18,226 INFO L82 PathProgramCache]: Analyzing trace with hash -285687237, now seen corresponding path program 1 times [2020-10-05 22:34:18,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:18,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52284432] [2020-10-05 22:34:18,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:18,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-05 22:34:18,241 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-05 22:34:18,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-05 22:34:18,247 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-05 22:34:18,254 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-05 22:34:18,255 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-05 22:34:18,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-05 22:34:18,256 WARN L363 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-05 22:34:18,257 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-10-05 22:34:18,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,267 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,267 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,268 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,268 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,268 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,269 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,269 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,269 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,269 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,269 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,270 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,270 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,270 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,270 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,270 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,270 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,271 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,271 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,271 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,271 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,271 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,271 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,271 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,272 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,272 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,272 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,272 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,272 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,272 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,272 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,273 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,273 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,273 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,273 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,273 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,273 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,274 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,274 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,274 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,274 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,274 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,274 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,274 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,275 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,275 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,275 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,275 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,275 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,275 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,275 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,276 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,276 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,276 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,276 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,277 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,277 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,277 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,277 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,277 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,277 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,277 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,277 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,278 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,278 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,278 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,278 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,279 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,279 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,282 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,283 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,284 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,290 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,290 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,290 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,290 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,290 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,293 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,293 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:18,294 INFO L251 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-05 22:34:18,294 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:34:18,294 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:34:18,294 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:34:18,294 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:34:18,295 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:34:18,295 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:34:18,295 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:34:18,295 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:34:18,296 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 98 transitions, 256 flow [2020-10-05 22:34:18,296 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 104 places, 98 transitions, 256 flow [2020-10-05 22:34:18,315 INFO L129 PetriNetUnfolder]: 13/151 cut-off events. [2020-10-05 22:34:18,316 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-05 22:34:18,317 INFO L80 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 151 events. 13/151 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 434 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 151. Up to 14 conditions per place. [2020-10-05 22:34:18,324 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 104 places, 98 transitions, 256 flow [2020-10-05 22:34:18,346 INFO L129 PetriNetUnfolder]: 13/151 cut-off events. [2020-10-05 22:34:18,347 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-05 22:34:18,348 INFO L80 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 151 events. 13/151 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 434 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 151. Up to 14 conditions per place. [2020-10-05 22:34:18,354 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 6120 [2020-10-05 22:34:18,355 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:34:19,565 INFO L206 etLargeBlockEncoding]: Checked pairs total: 10327 [2020-10-05 22:34:19,565 INFO L214 etLargeBlockEncoding]: Total number of compositions: 89 [2020-10-05 22:34:19,565 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 33 transitions, 126 flow [2020-10-05 22:34:23,750 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 25940 states. [2020-10-05 22:34:23,750 INFO L276 IsEmpty]: Start isEmpty. Operand 25940 states. [2020-10-05 22:34:23,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-05 22:34:23,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:23,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-05 22:34:23,751 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:23,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:23,751 INFO L82 PathProgramCache]: Analyzing trace with hash 862156483, now seen corresponding path program 1 times [2020-10-05 22:34:23,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:23,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620337927] [2020-10-05 22:34:23,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:23,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:34:23,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620337927] [2020-10-05 22:34:23,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:23,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:34:23,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332132001] [2020-10-05 22:34:23,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:34:23,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:23,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:34:23,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:23,766 INFO L87 Difference]: Start difference. First operand 25940 states. Second operand 3 states. [2020-10-05 22:34:24,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:24,011 INFO L93 Difference]: Finished difference Result 30660 states and 153869 transitions. [2020-10-05 22:34:24,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:24,012 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-05 22:34:24,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:25,271 INFO L225 Difference]: With dead ends: 30660 [2020-10-05 22:34:25,271 INFO L226 Difference]: Without dead ends: 30660 [2020-10-05 22:34:25,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:26,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30660 states. [2020-10-05 22:34:27,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30660 to 25560. [2020-10-05 22:34:27,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25560 states. [2020-10-05 22:34:27,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25560 states to 25560 states and 131665 transitions. [2020-10-05 22:34:27,234 INFO L78 Accepts]: Start accepts. Automaton has 25560 states and 131665 transitions. Word has length 5 [2020-10-05 22:34:27,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:27,235 INFO L479 AbstractCegarLoop]: Abstraction has 25560 states and 131665 transitions. [2020-10-05 22:34:27,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:34:27,235 INFO L276 IsEmpty]: Start isEmpty. Operand 25560 states and 131665 transitions. [2020-10-05 22:34:27,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 22:34:27,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:27,235 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:27,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-05 22:34:27,236 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:27,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:27,236 INFO L82 PathProgramCache]: Analyzing trace with hash 422134040, now seen corresponding path program 1 times [2020-10-05 22:34:27,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:27,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567583627] [2020-10-05 22:34:27,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:27,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-05 22:34:27,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567583627] [2020-10-05 22:34:27,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:27,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:34:27,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351472173] [2020-10-05 22:34:27,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:34:27,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:27,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:34:27,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:27,252 INFO L87 Difference]: Start difference. First operand 25560 states and 131665 transitions. Second operand 3 states. [2020-10-05 22:34:27,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:27,501 INFO L93 Difference]: Finished difference Result 36927 states and 186525 transitions. [2020-10-05 22:34:27,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:27,501 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-05 22:34:27,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:27,622 INFO L225 Difference]: With dead ends: 36927 [2020-10-05 22:34:27,622 INFO L226 Difference]: Without dead ends: 36927 [2020-10-05 22:34:27,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:30,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36927 states. [2020-10-05 22:34:31,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36927 to 30580. [2020-10-05 22:34:31,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30580 states. [2020-10-05 22:34:31,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30580 states to 30580 states and 158564 transitions. [2020-10-05 22:34:31,592 INFO L78 Accepts]: Start accepts. Automaton has 30580 states and 158564 transitions. Word has length 8 [2020-10-05 22:34:31,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:31,592 INFO L479 AbstractCegarLoop]: Abstraction has 30580 states and 158564 transitions. [2020-10-05 22:34:31,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:34:31,592 INFO L276 IsEmpty]: Start isEmpty. Operand 30580 states and 158564 transitions. [2020-10-05 22:34:31,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 22:34:31,593 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:31,593 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:31,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-05 22:34:31,593 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:31,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:31,593 INFO L82 PathProgramCache]: Analyzing trace with hash 203971322, now seen corresponding path program 1 times [2020-10-05 22:34:31,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:31,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682329654] [2020-10-05 22:34:31,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:31,624 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-05 22:34:31,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682329654] [2020-10-05 22:34:31,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:31,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:34:31,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476959681] [2020-10-05 22:34:31,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:34:31,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:31,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:34:31,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:34:31,629 INFO L87 Difference]: Start difference. First operand 30580 states and 158564 transitions. Second operand 4 states. [2020-10-05 22:34:31,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:31,811 INFO L93 Difference]: Finished difference Result 24233 states and 124256 transitions. [2020-10-05 22:34:31,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:31,812 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-05 22:34:31,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:31,890 INFO L225 Difference]: With dead ends: 24233 [2020-10-05 22:34:31,890 INFO L226 Difference]: Without dead ends: 24233 [2020-10-05 22:34:31,890 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:34:32,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24233 states. [2020-10-05 22:34:33,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24233 to 19165. [2020-10-05 22:34:33,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19165 states. [2020-10-05 22:34:33,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19165 states to 19165 states and 97114 transitions. [2020-10-05 22:34:33,374 INFO L78 Accepts]: Start accepts. Automaton has 19165 states and 97114 transitions. Word has length 9 [2020-10-05 22:34:33,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:33,374 INFO L479 AbstractCegarLoop]: Abstraction has 19165 states and 97114 transitions. [2020-10-05 22:34:33,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:34:33,375 INFO L276 IsEmpty]: Start isEmpty. Operand 19165 states and 97114 transitions. [2020-10-05 22:34:33,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 22:34:33,375 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:33,375 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:33,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-05 22:34:33,375 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:33,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:33,376 INFO L82 PathProgramCache]: Analyzing trace with hash 201256629, now seen corresponding path program 1 times [2020-10-05 22:34:33,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:33,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348844926] [2020-10-05 22:34:33,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:33,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-05 22:34:33,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348844926] [2020-10-05 22:34:33,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:33,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:34:33,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780596314] [2020-10-05 22:34:33,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:34:33,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:33,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:34:33,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:34:33,394 INFO L87 Difference]: Start difference. First operand 19165 states and 97114 transitions. Second operand 4 states. [2020-10-05 22:34:33,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:33,577 INFO L93 Difference]: Finished difference Result 15344 states and 76976 transitions. [2020-10-05 22:34:33,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:33,577 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-05 22:34:33,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:33,651 INFO L225 Difference]: With dead ends: 15344 [2020-10-05 22:34:33,652 INFO L226 Difference]: Without dead ends: 15344 [2020-10-05 22:34:33,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:34:34,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15344 states. [2020-10-05 22:34:34,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15344 to 11523. [2020-10-05 22:34:34,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11523 states. [2020-10-05 22:34:34,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11523 states to 11523 states and 56838 transitions. [2020-10-05 22:34:34,378 INFO L78 Accepts]: Start accepts. Automaton has 11523 states and 56838 transitions. Word has length 9 [2020-10-05 22:34:34,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:34,378 INFO L479 AbstractCegarLoop]: Abstraction has 11523 states and 56838 transitions. [2020-10-05 22:34:35,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:34:35,542 INFO L276 IsEmpty]: Start isEmpty. Operand 11523 states and 56838 transitions. [2020-10-05 22:34:35,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 22:34:35,542 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:35,542 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:35,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-05 22:34:35,543 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:35,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:35,543 INFO L82 PathProgramCache]: Analyzing trace with hash -40974610, now seen corresponding path program 1 times [2020-10-05 22:34:35,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:35,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382294466] [2020-10-05 22:34:35,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:35,559 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-05 22:34:35,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382294466] [2020-10-05 22:34:35,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:35,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:34:35,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877723307] [2020-10-05 22:34:35,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:34:35,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:35,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:34:35,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:35,560 INFO L87 Difference]: Start difference. First operand 11523 states and 56838 transitions. Second operand 3 states. [2020-10-05 22:34:35,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:35,689 INFO L93 Difference]: Finished difference Result 17226 states and 83578 transitions. [2020-10-05 22:34:35,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:35,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-05 22:34:35,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:35,744 INFO L225 Difference]: With dead ends: 17226 [2020-10-05 22:34:35,744 INFO L226 Difference]: Without dead ends: 17226 [2020-10-05 22:34:35,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:36,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17226 states. [2020-10-05 22:34:36,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17226 to 14368. [2020-10-05 22:34:36,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14368 states. [2020-10-05 22:34:36,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14368 states to 14368 states and 71601 transitions. [2020-10-05 22:34:36,396 INFO L78 Accepts]: Start accepts. Automaton has 14368 states and 71601 transitions. Word has length 11 [2020-10-05 22:34:36,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:36,396 INFO L479 AbstractCegarLoop]: Abstraction has 14368 states and 71601 transitions. [2020-10-05 22:34:36,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:34:36,396 INFO L276 IsEmpty]: Start isEmpty. Operand 14368 states and 71601 transitions. [2020-10-05 22:34:36,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:34:36,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:36,397 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:36,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-05 22:34:36,397 INFO L427 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:36,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:36,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1270210238, now seen corresponding path program 1 times [2020-10-05 22:34:36,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:36,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481857548] [2020-10-05 22:34:36,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:36,422 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-05 22:34:36,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481857548] [2020-10-05 22:34:36,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:36,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:34:36,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767978512] [2020-10-05 22:34:36,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:34:36,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:36,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:34:36,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:34:36,424 INFO L87 Difference]: Start difference. First operand 14368 states and 71601 transitions. Second operand 4 states. [2020-10-05 22:34:36,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:36,548 INFO L93 Difference]: Finished difference Result 11510 states and 56766 transitions. [2020-10-05 22:34:36,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:36,549 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 22:34:36,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:36,586 INFO L225 Difference]: With dead ends: 11510 [2020-10-05 22:34:36,586 INFO L226 Difference]: Without dead ends: 11510 [2020-10-05 22:34:36,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:34:36,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11510 states. [2020-10-05 22:34:36,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11510 to 8652. [2020-10-05 22:34:36,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8652 states. [2020-10-05 22:34:36,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8652 states to 8652 states and 41931 transitions. [2020-10-05 22:34:36,966 INFO L78 Accepts]: Start accepts. Automaton has 8652 states and 41931 transitions. Word has length 12 [2020-10-05 22:34:36,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:36,966 INFO L479 AbstractCegarLoop]: Abstraction has 8652 states and 41931 transitions. [2020-10-05 22:34:36,966 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:34:36,966 INFO L276 IsEmpty]: Start isEmpty. Operand 8652 states and 41931 transitions. [2020-10-05 22:34:36,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 22:34:36,967 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:36,967 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:36,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-05 22:34:36,967 INFO L427 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:36,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:36,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1064251902, now seen corresponding path program 1 times [2020-10-05 22:34:36,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:36,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383201241] [2020-10-05 22:34:36,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:36,985 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-05 22:34:36,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383201241] [2020-10-05 22:34:36,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:36,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:34:36,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673142231] [2020-10-05 22:34:36,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:34:36,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:36,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:34:36,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:36,987 INFO L87 Difference]: Start difference. First operand 8652 states and 41931 transitions. Second operand 3 states. [2020-10-05 22:34:37,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:37,200 INFO L93 Difference]: Finished difference Result 12888 states and 61498 transitions. [2020-10-05 22:34:37,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:37,201 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-05 22:34:37,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:37,244 INFO L225 Difference]: With dead ends: 12888 [2020-10-05 22:34:37,244 INFO L226 Difference]: Without dead ends: 12888 [2020-10-05 22:34:37,244 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:37,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12888 states. [2020-10-05 22:34:37,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12888 to 10765. [2020-10-05 22:34:37,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10765 states. [2020-10-05 22:34:37,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10765 states to 10765 states and 52746 transitions. [2020-10-05 22:34:37,665 INFO L78 Accepts]: Start accepts. Automaton has 10765 states and 52746 transitions. Word has length 14 [2020-10-05 22:34:37,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:37,665 INFO L479 AbstractCegarLoop]: Abstraction has 10765 states and 52746 transitions. [2020-10-05 22:34:37,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:34:37,665 INFO L276 IsEmpty]: Start isEmpty. Operand 10765 states and 52746 transitions. [2020-10-05 22:34:37,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 22:34:37,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:37,666 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:37,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-05 22:34:37,667 INFO L427 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:37,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:37,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1367932408, now seen corresponding path program 1 times [2020-10-05 22:34:37,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:37,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849536764] [2020-10-05 22:34:37,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:37,698 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-05 22:34:37,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849536764] [2020-10-05 22:34:37,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:37,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:34:37,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362128855] [2020-10-05 22:34:37,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:34:37,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:37,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:34:37,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:34:37,700 INFO L87 Difference]: Start difference. First operand 10765 states and 52746 transitions. Second operand 4 states. [2020-10-05 22:34:37,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:37,790 INFO L93 Difference]: Finished difference Result 8642 states and 41871 transitions. [2020-10-05 22:34:37,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:37,791 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-05 22:34:37,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:37,815 INFO L225 Difference]: With dead ends: 8642 [2020-10-05 22:34:37,816 INFO L226 Difference]: Without dead ends: 8642 [2020-10-05 22:34:37,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:34:37,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8642 states. [2020-10-05 22:34:38,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8642 to 6519. [2020-10-05 22:34:38,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6519 states. [2020-10-05 22:34:38,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6519 states to 6519 states and 30996 transitions. [2020-10-05 22:34:38,064 INFO L78 Accepts]: Start accepts. Automaton has 6519 states and 30996 transitions. Word has length 15 [2020-10-05 22:34:38,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:38,064 INFO L479 AbstractCegarLoop]: Abstraction has 6519 states and 30996 transitions. [2020-10-05 22:34:38,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:34:38,064 INFO L276 IsEmpty]: Start isEmpty. Operand 6519 states and 30996 transitions. [2020-10-05 22:34:38,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 22:34:38,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:38,066 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:38,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-05 22:34:38,066 INFO L427 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:38,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:38,066 INFO L82 PathProgramCache]: Analyzing trace with hash 152749525, now seen corresponding path program 1 times [2020-10-05 22:34:38,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:38,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771385595] [2020-10-05 22:34:38,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:38,080 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-05 22:34:38,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771385595] [2020-10-05 22:34:38,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:38,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:34:38,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112841711] [2020-10-05 22:34:38,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:34:38,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:38,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:34:38,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:38,081 INFO L87 Difference]: Start difference. First operand 6519 states and 30996 transitions. Second operand 3 states. [2020-10-05 22:34:38,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:38,192 INFO L93 Difference]: Finished difference Result 9576 states and 44989 transitions. [2020-10-05 22:34:38,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:38,193 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-05 22:34:38,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:38,227 INFO L225 Difference]: With dead ends: 9576 [2020-10-05 22:34:38,227 INFO L226 Difference]: Without dead ends: 9576 [2020-10-05 22:34:38,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:38,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9576 states. [2020-10-05 22:34:38,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9576 to 8044. [2020-10-05 22:34:38,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8044 states. [2020-10-05 22:34:38,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8044 states to 8044 states and 38736 transitions. [2020-10-05 22:34:38,518 INFO L78 Accepts]: Start accepts. Automaton has 8044 states and 38736 transitions. Word has length 17 [2020-10-05 22:34:38,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:38,518 INFO L479 AbstractCegarLoop]: Abstraction has 8044 states and 38736 transitions. [2020-10-05 22:34:38,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:34:38,519 INFO L276 IsEmpty]: Start isEmpty. Operand 8044 states and 38736 transitions. [2020-10-05 22:34:38,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-05 22:34:38,520 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:38,520 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:38,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-05 22:34:38,520 INFO L427 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:38,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:38,521 INFO L82 PathProgramCache]: Analyzing trace with hash 440270196, now seen corresponding path program 1 times [2020-10-05 22:34:38,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:38,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962183860] [2020-10-05 22:34:38,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:38,538 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-05 22:34:38,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962183860] [2020-10-05 22:34:38,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:38,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:34:38,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982115196] [2020-10-05 22:34:38,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:34:38,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:38,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:34:38,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:34:38,540 INFO L87 Difference]: Start difference. First operand 8044 states and 38736 transitions. Second operand 4 states. [2020-10-05 22:34:38,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:38,612 INFO L93 Difference]: Finished difference Result 6512 states and 30951 transitions. [2020-10-05 22:34:38,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:38,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-05 22:34:38,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:38,631 INFO L225 Difference]: With dead ends: 6512 [2020-10-05 22:34:38,632 INFO L226 Difference]: Without dead ends: 6512 [2020-10-05 22:34:38,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:34:38,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6512 states. [2020-10-05 22:34:38,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6512 to 4980. [2020-10-05 22:34:38,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4980 states. [2020-10-05 22:34:38,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4980 states to 4980 states and 23166 transitions. [2020-10-05 22:34:38,801 INFO L78 Accepts]: Start accepts. Automaton has 4980 states and 23166 transitions. Word has length 18 [2020-10-05 22:34:38,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:38,802 INFO L479 AbstractCegarLoop]: Abstraction has 4980 states and 23166 transitions. [2020-10-05 22:34:38,802 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:34:38,802 INFO L276 IsEmpty]: Start isEmpty. Operand 4980 states and 23166 transitions. [2020-10-05 22:34:38,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-05 22:34:38,804 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:38,805 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:38,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-05 22:34:38,805 INFO L427 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:38,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:38,805 INFO L82 PathProgramCache]: Analyzing trace with hash 2026385382, now seen corresponding path program 1 times [2020-10-05 22:34:38,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:38,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271432922] [2020-10-05 22:34:38,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:38,819 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-05 22:34:38,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271432922] [2020-10-05 22:34:38,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:38,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:34:38,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332173193] [2020-10-05 22:34:38,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:34:38,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:38,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:34:38,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:38,821 INFO L87 Difference]: Start difference. First operand 4980 states and 23166 transitions. Second operand 3 states. [2020-10-05 22:34:38,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:38,884 INFO L93 Difference]: Finished difference Result 6912 states and 31999 transitions. [2020-10-05 22:34:38,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:38,885 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-10-05 22:34:38,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:38,902 INFO L225 Difference]: With dead ends: 6912 [2020-10-05 22:34:38,902 INFO L226 Difference]: Without dead ends: 6912 [2020-10-05 22:34:38,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:34:39,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6912 states. [2020-10-05 22:34:39,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6912 to 5944. [2020-10-05 22:34:39,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5944 states. [2020-10-05 22:34:39,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5944 states to 5944 states and 28053 transitions. [2020-10-05 22:34:39,156 INFO L78 Accepts]: Start accepts. Automaton has 5944 states and 28053 transitions. Word has length 20 [2020-10-05 22:34:39,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:39,157 INFO L479 AbstractCegarLoop]: Abstraction has 5944 states and 28053 transitions. [2020-10-05 22:34:39,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:34:39,157 INFO L276 IsEmpty]: Start isEmpty. Operand 5944 states and 28053 transitions. [2020-10-05 22:34:39,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-05 22:34:39,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:39,167 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:39,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-05 22:34:39,167 INFO L427 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:39,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:39,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1606559931, now seen corresponding path program 1 times [2020-10-05 22:34:39,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:39,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13809394] [2020-10-05 22:34:39,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:34:39,196 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-05 22:34:39,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13809394] [2020-10-05 22:34:39,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:34:39,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:34:39,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456100713] [2020-10-05 22:34:39,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:34:39,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:34:39,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:34:39,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:34:39,199 INFO L87 Difference]: Start difference. First operand 5944 states and 28053 transitions. Second operand 4 states. [2020-10-05 22:34:39,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:34:39,258 INFO L93 Difference]: Finished difference Result 4976 states and 23139 transitions. [2020-10-05 22:34:39,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:34:39,258 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-10-05 22:34:39,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:34:39,271 INFO L225 Difference]: With dead ends: 4976 [2020-10-05 22:34:39,271 INFO L226 Difference]: Without dead ends: 4976 [2020-10-05 22:34:39,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:34:39,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4976 states. [2020-10-05 22:34:39,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4976 to 4008. [2020-10-05 22:34:39,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4008 states. [2020-10-05 22:34:39,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4008 states to 4008 states and 18225 transitions. [2020-10-05 22:34:39,400 INFO L78 Accepts]: Start accepts. Automaton has 4008 states and 18225 transitions. Word has length 21 [2020-10-05 22:34:39,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:34:39,400 INFO L479 AbstractCegarLoop]: Abstraction has 4008 states and 18225 transitions. [2020-10-05 22:34:39,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:34:39,400 INFO L276 IsEmpty]: Start isEmpty. Operand 4008 states and 18225 transitions. [2020-10-05 22:34:39,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-05 22:34:39,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:34:39,403 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:34:39,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-05 22:34:39,404 INFO L427 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:34:39,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:34:39,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1606739912, now seen corresponding path program 1 times [2020-10-05 22:34:39,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:34:39,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230772474] [2020-10-05 22:34:39,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:34:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-05 22:34:39,412 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-05 22:34:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-05 22:34:39,418 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-05 22:34:39,425 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-05 22:34:39,426 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-05 22:34:39,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-05 22:34:39,426 WARN L363 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-05 22:34:39,427 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2020-10-05 22:34:39,443 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,444 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,444 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,444 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,444 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,444 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,444 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,451 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,452 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,452 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,452 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,453 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,453 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,453 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,454 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,454 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,455 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,455 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,455 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,455 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,455 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,455 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,455 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,456 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,456 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,456 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,456 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,456 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,456 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,456 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,456 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,457 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,457 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,457 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,457 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,457 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,457 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,457 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,457 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,458 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,458 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,458 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,459 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,459 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,459 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,459 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,459 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,460 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,460 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,460 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,460 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,460 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,460 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,460 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,460 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,461 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,461 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,461 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,461 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,461 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,461 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,461 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,461 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,462 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,462 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,462 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,462 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,462 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,468 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,468 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,468 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,468 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,468 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,468 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,469 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,469 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,469 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,469 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,469 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,469 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,469 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,470 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,470 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,470 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,470 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,470 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,470 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,470 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,471 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,471 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,471 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,471 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,471 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,471 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,471 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,471 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,472 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,472 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,472 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,472 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,472 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,472 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,473 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,473 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,481 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,482 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,482 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,482 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,482 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,482 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,483 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,483 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,483 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,483 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,484 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,484 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,484 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,485 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,485 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,485 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,485 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,485 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,486 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,486 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,486 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,486 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,486 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,486 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,487 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,487 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,487 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,487 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,487 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,488 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,488 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,488 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,489 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,489 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,489 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,489 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:34:39,490 INFO L251 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-10-05 22:34:39,490 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:34:39,490 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:34:39,490 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:34:39,491 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:34:39,491 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:34:39,491 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:34:39,491 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:34:39,491 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:34:39,492 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 111 transitions, 299 flow [2020-10-05 22:34:39,492 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 118 places, 111 transitions, 299 flow [2020-10-05 22:34:39,511 INFO L129 PetriNetUnfolder]: 15/173 cut-off events. [2020-10-05 22:34:39,511 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2020-10-05 22:34:39,513 INFO L80 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 173 events. 15/173 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 517 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 182. Up to 16 conditions per place. [2020-10-05 22:34:39,522 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 118 places, 111 transitions, 299 flow [2020-10-05 22:34:39,541 INFO L129 PetriNetUnfolder]: 15/173 cut-off events. [2020-10-05 22:34:39,541 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2020-10-05 22:34:39,543 INFO L80 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 173 events. 15/173 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 517 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 182. Up to 16 conditions per place. [2020-10-05 22:34:39,549 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 8232 [2020-10-05 22:34:39,549 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:34:40,822 INFO L206 etLargeBlockEncoding]: Checked pairs total: 13237 [2020-10-05 22:34:40,822 INFO L214 etLargeBlockEncoding]: Total number of compositions: 95 [2020-10-05 22:34:40,823 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 34 transitions, 145 flow [2020-10-05 22:35:18,149 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 103764 states. [2020-10-05 22:35:18,150 INFO L276 IsEmpty]: Start isEmpty. Operand 103764 states. [2020-10-05 22:35:18,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-05 22:35:18,150 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:35:18,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-05 22:35:18,151 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:35:18,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:35:18,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1079248743, now seen corresponding path program 1 times [2020-10-05 22:35:18,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:35:18,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530157651] [2020-10-05 22:35:18,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:35:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:35:18,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:35:18,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530157651] [2020-10-05 22:35:18,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:35:18,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:35:18,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118583594] [2020-10-05 22:35:18,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:35:18,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:35:18,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:35:18,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:35:18,177 INFO L87 Difference]: Start difference. First operand 103764 states. Second operand 3 states. [2020-10-05 22:35:19,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:35:19,049 INFO L93 Difference]: Finished difference Result 122811 states and 708293 transitions. [2020-10-05 22:35:19,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:35:19,049 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-05 22:35:19,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:35:23,083 INFO L225 Difference]: With dead ends: 122811 [2020-10-05 22:35:23,084 INFO L226 Difference]: Without dead ends: 122811 [2020-10-05 22:35:23,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:35:32,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122811 states. [2020-10-05 22:35:35,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122811 to 102354. [2020-10-05 22:35:35,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102354 states. [2020-10-05 22:35:35,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102354 states to 102354 states and 603935 transitions. [2020-10-05 22:35:35,680 INFO L78 Accepts]: Start accepts. Automaton has 102354 states and 603935 transitions. Word has length 5 [2020-10-05 22:35:35,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:35:35,680 INFO L479 AbstractCegarLoop]: Abstraction has 102354 states and 603935 transitions. [2020-10-05 22:35:35,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:35:35,680 INFO L276 IsEmpty]: Start isEmpty. Operand 102354 states and 603935 transitions. [2020-10-05 22:35:35,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 22:35:35,681 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:35:35,681 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-10-05 22:35:35,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-05 22:35:35,681 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:35:35,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:35:35,681 INFO L82 PathProgramCache]: Analyzing trace with hash -423468189, now seen corresponding path program 1 times [2020-10-05 22:35:35,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:35:35,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153038478] [2020-10-05 22:35:35,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:35:35,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:35:35,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-05 22:35:35,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153038478] [2020-10-05 22:35:35,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:35:35,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:35:35,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518860925] [2020-10-05 22:35:35,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:35:35,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:35:35,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:35:35,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:35:35,708 INFO L87 Difference]: Start difference. First operand 102354 states and 603935 transitions. Second operand 3 states. [2020-10-05 22:35:41,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:35:41,916 INFO L93 Difference]: Finished difference Result 148254 states and 859795 transitions. [2020-10-05 22:35:41,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:35:41,917 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-05 22:35:41,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:35:42,496 INFO L225 Difference]: With dead ends: 148254 [2020-10-05 22:35:42,496 INFO L226 Difference]: Without dead ends: 148254 [2020-10-05 22:35:42,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:35:54,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148254 states. [2020-10-05 22:35:57,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148254 to 122716. [2020-10-05 22:35:57,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122716 states. [2020-10-05 22:35:58,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122716 states to 122716 states and 728220 transitions. [2020-10-05 22:35:58,220 INFO L78 Accepts]: Start accepts. Automaton has 122716 states and 728220 transitions. Word has length 8 [2020-10-05 22:35:58,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:35:58,221 INFO L479 AbstractCegarLoop]: Abstraction has 122716 states and 728220 transitions. [2020-10-05 22:35:58,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:35:58,221 INFO L276 IsEmpty]: Start isEmpty. Operand 122716 states and 728220 transitions. [2020-10-05 22:35:58,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 22:35:58,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:35:58,221 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:35:58,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-05 22:35:58,221 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:35:58,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:35:58,222 INFO L82 PathProgramCache]: Analyzing trace with hash -242594376, now seen corresponding path program 1 times [2020-10-05 22:35:58,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:35:58,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223413276] [2020-10-05 22:35:58,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:35:58,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:35:58,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-05 22:35:58,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223413276] [2020-10-05 22:35:58,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:35:58,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:35:58,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856662023] [2020-10-05 22:35:58,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:35:58,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:35:58,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:35:58,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:35:58,255 INFO L87 Difference]: Start difference. First operand 122716 states and 728220 transitions. Second operand 4 states. [2020-10-05 22:36:05,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:36:05,489 INFO L93 Difference]: Finished difference Result 97178 states and 571107 transitions. [2020-10-05 22:36:05,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:36:05,490 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-05 22:36:05,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:36:05,883 INFO L225 Difference]: With dead ends: 97178 [2020-10-05 22:36:05,883 INFO L226 Difference]: Without dead ends: 97178 [2020-10-05 22:36:05,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:36:12,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97178 states. [2020-10-05 22:36:13,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97178 to 76759. [2020-10-05 22:36:13,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76759 states. [2020-10-05 22:36:14,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76759 states to 76759 states and 446504 transitions. [2020-10-05 22:36:14,062 INFO L78 Accepts]: Start accepts. Automaton has 76759 states and 446504 transitions. Word has length 9 [2020-10-05 22:36:14,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:36:14,062 INFO L479 AbstractCegarLoop]: Abstraction has 76759 states and 446504 transitions. [2020-10-05 22:36:14,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:36:14,062 INFO L276 IsEmpty]: Start isEmpty. Operand 76759 states and 446504 transitions. [2020-10-05 22:36:14,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 22:36:14,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:36:14,062 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:36:14,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-05 22:36:14,063 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:36:14,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:36:14,063 INFO L82 PathProgramCache]: Analyzing trace with hash -242609250, now seen corresponding path program 1 times [2020-10-05 22:36:14,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:36:14,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139390067] [2020-10-05 22:36:14,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:36:14,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:36:14,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-05 22:36:14,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139390067] [2020-10-05 22:36:14,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:36:14,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:36:14,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399264008] [2020-10-05 22:36:14,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:36:14,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:36:14,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:36:14,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:36:14,080 INFO L87 Difference]: Start difference. First operand 76759 states and 446504 transitions. Second operand 4 states. [2020-10-05 22:36:15,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:36:15,508 INFO L93 Difference]: Finished difference Result 61421 states and 354199 transitions. [2020-10-05 22:36:15,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:36:15,508 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-05 22:36:15,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:36:15,762 INFO L225 Difference]: With dead ends: 61421 [2020-10-05 22:36:15,762 INFO L226 Difference]: Without dead ends: 61421 [2020-10-05 22:36:15,762 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:36:23,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61421 states. [2020-10-05 22:36:24,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61421 to 46083. [2020-10-05 22:36:24,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46083 states. [2020-10-05 22:36:24,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46083 states to 46083 states and 261894 transitions. [2020-10-05 22:36:24,670 INFO L78 Accepts]: Start accepts. Automaton has 46083 states and 261894 transitions. Word has length 9 [2020-10-05 22:36:24,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:36:24,671 INFO L479 AbstractCegarLoop]: Abstraction has 46083 states and 261894 transitions. [2020-10-05 22:36:24,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:36:24,671 INFO L276 IsEmpty]: Start isEmpty. Operand 46083 states and 261894 transitions. [2020-10-05 22:36:24,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 22:36:24,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:36:24,671 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2020-10-05 22:36:24,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-05 22:36:24,672 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:36:24,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:36:24,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1404864702, now seen corresponding path program 1 times [2020-10-05 22:36:24,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:36:24,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878519730] [2020-10-05 22:36:24,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:36:24,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:36:24,696 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-05 22:36:24,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878519730] [2020-10-05 22:36:24,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:36:24,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:36:24,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164006935] [2020-10-05 22:36:24,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:36:24,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:36:24,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:36:24,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:36:24,697 INFO L87 Difference]: Start difference. First operand 46083 states and 261894 transitions. Second operand 3 states. [2020-10-05 22:36:25,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:36:25,146 INFO L93 Difference]: Finished difference Result 69057 states and 386770 transitions. [2020-10-05 22:36:25,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:36:25,146 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-05 22:36:25,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:36:25,396 INFO L225 Difference]: With dead ends: 69057 [2020-10-05 22:36:25,396 INFO L226 Difference]: Without dead ends: 69057 [2020-10-05 22:36:25,396 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:36:32,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69057 states. [2020-10-05 22:36:33,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69057 to 57562. [2020-10-05 22:36:33,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57562 states. [2020-10-05 22:36:33,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57562 states to 57562 states and 330031 transitions. [2020-10-05 22:36:33,958 INFO L78 Accepts]: Start accepts. Automaton has 57562 states and 330031 transitions. Word has length 11 [2020-10-05 22:36:33,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:36:33,958 INFO L479 AbstractCegarLoop]: Abstraction has 57562 states and 330031 transitions. [2020-10-05 22:36:33,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:36:33,958 INFO L276 IsEmpty]: Start isEmpty. Operand 57562 states and 330031 transitions. [2020-10-05 22:36:33,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:36:33,959 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:36:33,959 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:36:33,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-10-05 22:36:33,959 INFO L427 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:36:33,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:36:33,960 INFO L82 PathProgramCache]: Analyzing trace with hash -601130141, now seen corresponding path program 1 times [2020-10-05 22:36:33,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:36:33,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581715900] [2020-10-05 22:36:33,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:36:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:36:33,980 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-05 22:36:33,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581715900] [2020-10-05 22:36:33,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:36:33,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:36:33,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548752243] [2020-10-05 22:36:33,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:36:33,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:36:33,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:36:33,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:36:33,982 INFO L87 Difference]: Start difference. First operand 57562 states and 330031 transitions. Second operand 4 states. [2020-10-05 22:36:34,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:36:34,487 INFO L93 Difference]: Finished difference Result 46067 states and 261797 transitions. [2020-10-05 22:36:34,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:36:34,488 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 22:36:34,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:36:34,673 INFO L225 Difference]: With dead ends: 46067 [2020-10-05 22:36:34,673 INFO L226 Difference]: Without dead ends: 46067 [2020-10-05 22:36:34,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:36:37,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46067 states. [2020-10-05 22:36:41,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46067 to 34572. [2020-10-05 22:36:41,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34572 states. [2020-10-05 22:36:41,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34572 states to 34572 states and 193563 transitions. [2020-10-05 22:36:41,596 INFO L78 Accepts]: Start accepts. Automaton has 34572 states and 193563 transitions. Word has length 12 [2020-10-05 22:36:41,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:36:41,596 INFO L479 AbstractCegarLoop]: Abstraction has 34572 states and 193563 transitions. [2020-10-05 22:36:41,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:36:41,596 INFO L276 IsEmpty]: Start isEmpty. Operand 34572 states and 193563 transitions. [2020-10-05 22:36:41,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 22:36:41,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:36:41,597 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:36:41,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-10-05 22:36:41,597 INFO L427 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:36:41,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:36:41,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1950756351, now seen corresponding path program 1 times [2020-10-05 22:36:41,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:36:41,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949364104] [2020-10-05 22:36:41,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:36:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:36:41,610 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-05 22:36:41,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949364104] [2020-10-05 22:36:41,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:36:41,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:36:41,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83487667] [2020-10-05 22:36:41,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:36:41,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:36:41,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:36:41,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:36:41,612 INFO L87 Difference]: Start difference. First operand 34572 states and 193563 transitions. Second operand 3 states. [2020-10-05 22:36:41,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:36:41,958 INFO L93 Difference]: Finished difference Result 51759 states and 285634 transitions. [2020-10-05 22:36:41,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:36:41,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-05 22:36:41,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:36:42,137 INFO L225 Difference]: With dead ends: 51759 [2020-10-05 22:36:42,137 INFO L226 Difference]: Without dead ends: 51759 [2020-10-05 22:36:42,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:36:44,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51759 states. [2020-10-05 22:36:48,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51759 to 43159. [2020-10-05 22:36:48,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43159 states. [2020-10-05 22:36:48,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43159 states to 43159 states and 243856 transitions. [2020-10-05 22:36:48,352 INFO L78 Accepts]: Start accepts. Automaton has 43159 states and 243856 transitions. Word has length 14 [2020-10-05 22:36:48,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:36:48,352 INFO L479 AbstractCegarLoop]: Abstraction has 43159 states and 243856 transitions. [2020-10-05 22:36:48,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:36:48,352 INFO L276 IsEmpty]: Start isEmpty. Operand 43159 states and 243856 transitions. [2020-10-05 22:36:48,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 22:36:48,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:36:48,353 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:36:48,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2020-10-05 22:36:48,353 INFO L427 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:36:48,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:36:48,353 INFO L82 PathProgramCache]: Analyzing trace with hash 343906870, now seen corresponding path program 1 times [2020-10-05 22:36:48,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:36:48,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347236498] [2020-10-05 22:36:48,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:36:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:36:48,373 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-05 22:36:48,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347236498] [2020-10-05 22:36:48,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:36:48,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:36:48,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386223753] [2020-10-05 22:36:48,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:36:48,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:36:48,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:36:48,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:36:48,374 INFO L87 Difference]: Start difference. First operand 43159 states and 243856 transitions. Second operand 4 states. [2020-10-05 22:36:48,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:36:48,638 INFO L93 Difference]: Finished difference Result 34559 states and 193478 transitions. [2020-10-05 22:36:48,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:36:48,638 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-05 22:36:48,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:36:48,759 INFO L225 Difference]: With dead ends: 34559 [2020-10-05 22:36:48,759 INFO L226 Difference]: Without dead ends: 34559 [2020-10-05 22:36:48,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:36:50,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34559 states. [2020-10-05 22:36:50,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34559 to 25959. [2020-10-05 22:36:50,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25959 states. [2020-10-05 22:36:51,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25959 states to 25959 states and 143100 transitions. [2020-10-05 22:36:51,064 INFO L78 Accepts]: Start accepts. Automaton has 25959 states and 143100 transitions. Word has length 15 [2020-10-05 22:36:51,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:36:51,065 INFO L479 AbstractCegarLoop]: Abstraction has 25959 states and 143100 transitions. [2020-10-05 22:36:51,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:36:51,065 INFO L276 IsEmpty]: Start isEmpty. Operand 25959 states and 143100 transitions. [2020-10-05 22:36:51,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 22:36:51,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:36:51,066 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:36:51,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-10-05 22:36:51,066 INFO L427 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:36:51,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:36:51,066 INFO L82 PathProgramCache]: Analyzing trace with hash -408592942, now seen corresponding path program 1 times [2020-10-05 22:36:51,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:36:51,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863426697] [2020-10-05 22:36:51,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:36:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:36:51,082 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-05 22:36:51,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863426697] [2020-10-05 22:36:51,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:36:51,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:36:51,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934399095] [2020-10-05 22:36:51,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:36:51,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:36:51,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:36:51,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:36:51,085 INFO L87 Difference]: Start difference. First operand 25959 states and 143100 transitions. Second operand 3 states. [2020-10-05 22:36:51,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:36:51,352 INFO L93 Difference]: Finished difference Result 38727 states and 210643 transitions. [2020-10-05 22:36:51,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:36:51,353 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-05 22:36:51,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:36:51,484 INFO L225 Difference]: With dead ends: 38727 [2020-10-05 22:36:51,484 INFO L226 Difference]: Without dead ends: 38727 [2020-10-05 22:36:51,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:36:53,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38727 states. [2020-10-05 22:36:53,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38727 to 32338. [2020-10-05 22:36:53,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32338 states. [2020-10-05 22:36:54,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32338 states to 32338 states and 180031 transitions. [2020-10-05 22:36:54,005 INFO L78 Accepts]: Start accepts. Automaton has 32338 states and 180031 transitions. Word has length 17 [2020-10-05 22:36:54,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:36:54,006 INFO L479 AbstractCegarLoop]: Abstraction has 32338 states and 180031 transitions. [2020-10-05 22:36:54,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:36:54,006 INFO L276 IsEmpty]: Start isEmpty. Operand 32338 states and 180031 transitions. [2020-10-05 22:36:54,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-05 22:36:54,007 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:36:54,007 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:36:54,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-10-05 22:36:54,007 INFO L427 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:36:54,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:36:54,007 INFO L82 PathProgramCache]: Analyzing trace with hash 218524327, now seen corresponding path program 1 times [2020-10-05 22:36:54,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:36:54,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663983856] [2020-10-05 22:36:54,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:36:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:36:54,036 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-05 22:36:54,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663983856] [2020-10-05 22:36:54,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:36:54,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:36:54,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798592081] [2020-10-05 22:36:54,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:36:54,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:36:54,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:36:54,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:36:54,037 INFO L87 Difference]: Start difference. First operand 32338 states and 180031 transitions. Second operand 4 states. [2020-10-05 22:36:54,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:36:54,231 INFO L93 Difference]: Finished difference Result 25949 states and 143030 transitions. [2020-10-05 22:36:54,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:36:54,232 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-05 22:36:54,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:36:54,316 INFO L225 Difference]: With dead ends: 25949 [2020-10-05 22:36:54,316 INFO L226 Difference]: Without dead ends: 25949 [2020-10-05 22:36:54,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:36:55,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25949 states. [2020-10-05 22:36:56,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25949 to 19560. [2020-10-05 22:36:56,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19560 states. [2020-10-05 22:36:56,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19560 states to 19560 states and 106029 transitions. [2020-10-05 22:36:56,161 INFO L78 Accepts]: Start accepts. Automaton has 19560 states and 106029 transitions. Word has length 18 [2020-10-05 22:36:56,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:36:56,161 INFO L479 AbstractCegarLoop]: Abstraction has 19560 states and 106029 transitions. [2020-10-05 22:36:56,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:36:56,161 INFO L276 IsEmpty]: Start isEmpty. Operand 19560 states and 106029 transitions. [2020-10-05 22:36:56,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-05 22:36:56,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:36:56,164 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:36:56,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2020-10-05 22:36:56,164 INFO L427 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:36:56,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:36:56,165 INFO L82 PathProgramCache]: Analyzing trace with hash -640482004, now seen corresponding path program 1 times [2020-10-05 22:36:56,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:36:56,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413592537] [2020-10-05 22:36:56,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:36:56,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:36:56,178 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-05 22:36:56,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413592537] [2020-10-05 22:36:56,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:36:56,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:36:56,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695668023] [2020-10-05 22:36:56,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:36:56,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:36:56,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:36:56,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:36:56,180 INFO L87 Difference]: Start difference. First operand 19560 states and 106029 transitions. Second operand 3 states. [2020-10-05 22:36:56,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:36:56,369 INFO L93 Difference]: Finished difference Result 28773 states and 154399 transitions. [2020-10-05 22:36:56,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:36:56,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-10-05 22:36:56,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:36:56,465 INFO L225 Difference]: With dead ends: 28773 [2020-10-05 22:36:56,465 INFO L226 Difference]: Without dead ends: 28773 [2020-10-05 22:36:56,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:36:57,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28773 states. [2020-10-05 22:36:58,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28773 to 24163. [2020-10-05 22:36:58,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24163 states. [2020-10-05 22:36:58,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24163 states to 24163 states and 132493 transitions. [2020-10-05 22:36:58,386 INFO L78 Accepts]: Start accepts. Automaton has 24163 states and 132493 transitions. Word has length 20 [2020-10-05 22:36:58,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:36:58,387 INFO L479 AbstractCegarLoop]: Abstraction has 24163 states and 132493 transitions. [2020-10-05 22:36:58,387 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:36:58,387 INFO L276 IsEmpty]: Start isEmpty. Operand 24163 states and 132493 transitions. [2020-10-05 22:36:58,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-05 22:36:58,390 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:36:58,390 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:36:58,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2020-10-05 22:36:58,390 INFO L427 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:36:58,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:36:58,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1619896945, now seen corresponding path program 1 times [2020-10-05 22:36:58,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:36:58,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386044725] [2020-10-05 22:36:58,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:36:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:36:58,407 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-05 22:36:58,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386044725] [2020-10-05 22:36:58,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:36:58,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:36:58,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788399023] [2020-10-05 22:36:58,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:36:58,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:36:58,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:36:58,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:36:58,409 INFO L87 Difference]: Start difference. First operand 24163 states and 132493 transitions. Second operand 4 states. [2020-10-05 22:36:58,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:36:58,573 INFO L93 Difference]: Finished difference Result 19553 states and 105977 transitions. [2020-10-05 22:36:58,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:36:58,574 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-10-05 22:36:58,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:36:58,634 INFO L225 Difference]: With dead ends: 19553 [2020-10-05 22:36:58,634 INFO L226 Difference]: Without dead ends: 19553 [2020-10-05 22:36:58,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:36:59,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19553 states. [2020-10-05 22:36:59,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19553 to 14943. [2020-10-05 22:36:59,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14943 states. [2020-10-05 22:36:59,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14943 states to 14943 states and 79461 transitions. [2020-10-05 22:36:59,476 INFO L78 Accepts]: Start accepts. Automaton has 14943 states and 79461 transitions. Word has length 21 [2020-10-05 22:36:59,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:36:59,476 INFO L479 AbstractCegarLoop]: Abstraction has 14943 states and 79461 transitions. [2020-10-05 22:36:59,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:36:59,476 INFO L276 IsEmpty]: Start isEmpty. Operand 14943 states and 79461 transitions. [2020-10-05 22:36:59,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-05 22:36:59,482 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:36:59,482 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:36:59,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2020-10-05 22:36:59,482 INFO L427 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:36:59,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:36:59,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1741862694, now seen corresponding path program 1 times [2020-10-05 22:36:59,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:36:59,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288972586] [2020-10-05 22:36:59,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:36:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:36:59,497 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-10-05 22:36:59,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288972586] [2020-10-05 22:36:59,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:36:59,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:36:59,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616768803] [2020-10-05 22:36:59,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:36:59,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:36:59,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:36:59,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:36:59,499 INFO L87 Difference]: Start difference. First operand 14943 states and 79461 transitions. Second operand 3 states. [2020-10-05 22:36:59,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:36:59,649 INFO L93 Difference]: Finished difference Result 20763 states and 109990 transitions. [2020-10-05 22:36:59,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:36:59,650 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-10-05 22:36:59,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:36:59,710 INFO L225 Difference]: With dead ends: 20763 [2020-10-05 22:36:59,710 INFO L226 Difference]: Without dead ends: 20763 [2020-10-05 22:36:59,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:37:00,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20763 states. [2020-10-05 22:37:01,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20763 to 17851. [2020-10-05 22:37:01,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17851 states. [2020-10-05 22:37:01,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17851 states to 17851 states and 96166 transitions. [2020-10-05 22:37:01,086 INFO L78 Accepts]: Start accepts. Automaton has 17851 states and 96166 transitions. Word has length 23 [2020-10-05 22:37:01,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:37:01,086 INFO L479 AbstractCegarLoop]: Abstraction has 17851 states and 96166 transitions. [2020-10-05 22:37:01,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:37:01,086 INFO L276 IsEmpty]: Start isEmpty. Operand 17851 states and 96166 transitions. [2020-10-05 22:37:01,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-05 22:37:01,093 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:37:01,094 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:37:01,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2020-10-05 22:37:01,094 INFO L427 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:37:01,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:37:01,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1837019004, now seen corresponding path program 1 times [2020-10-05 22:37:01,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:37:01,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976409816] [2020-10-05 22:37:01,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:37:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-05 22:37:01,101 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-05 22:37:01,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-05 22:37:01,107 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-05 22:37:01,112 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-05 22:37:01,113 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-05 22:37:01,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2020-10-05 22:37:01,113 WARN L363 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-05 22:37:01,114 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2020-10-05 22:37:01,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,124 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,124 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,124 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,124 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,125 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,125 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,125 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,125 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,125 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,125 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,125 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,125 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,126 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,126 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,126 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,126 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,126 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,126 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,126 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,127 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,127 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,127 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,127 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,127 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,127 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,127 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,128 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,128 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,128 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,128 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,128 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,128 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,128 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,128 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,129 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,129 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,129 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,129 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,129 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,129 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,129 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,130 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,130 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,130 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,130 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,130 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,130 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,130 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,130 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,131 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,131 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,131 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,131 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,131 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,131 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,131 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,132 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,132 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,132 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,132 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,132 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,132 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,132 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,132 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,132 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,133 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,133 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,133 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,133 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,133 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,133 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,133 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,133 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,133 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,133 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,133 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,133 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,134 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,134 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,134 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,134 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,134 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,134 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,134 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,134 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,134 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,134 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,134 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,134 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,135 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,135 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,135 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,135 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,135 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,135 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,135 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,135 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,135 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,135 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,135 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,135 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,136 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,136 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,136 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,136 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,136 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,136 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,136 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,136 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,136 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,137 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,137 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,137 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,138 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,138 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,138 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,138 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,138 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,138 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,139 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,139 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,139 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,139 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,139 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,140 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,140 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,140 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,141 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,141 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,141 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,141 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,143 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,143 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,143 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,143 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,143 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,143 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,145 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,145 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,145 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,145 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,145 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,145 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,146 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,146 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,146 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,147 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,148 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,148 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,148 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,148 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,148 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:37:01,149 INFO L251 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-10-05 22:37:01,149 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:37:01,150 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:37:01,150 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:37:01,150 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:37:01,150 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:37:01,150 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:37:01,150 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:37:01,150 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:37:01,151 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 124 transitions, 344 flow [2020-10-05 22:37:01,151 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 132 places, 124 transitions, 344 flow [2020-10-05 22:37:01,170 INFO L129 PetriNetUnfolder]: 17/195 cut-off events. [2020-10-05 22:37:01,171 INFO L130 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2020-10-05 22:37:01,173 INFO L80 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 195 events. 17/195 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 596 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 214. Up to 18 conditions per place. [2020-10-05 22:37:01,178 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 132 places, 124 transitions, 344 flow [2020-10-05 22:37:01,200 INFO L129 PetriNetUnfolder]: 17/195 cut-off events. [2020-10-05 22:37:01,200 INFO L130 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2020-10-05 22:37:01,202 INFO L80 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 195 events. 17/195 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 596 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 214. Up to 18 conditions per place. [2020-10-05 22:37:01,209 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 10656 [2020-10-05 22:37:01,209 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:37:02,624 INFO L206 etLargeBlockEncoding]: Checked pairs total: 14930 [2020-10-05 22:37:02,624 INFO L214 etLargeBlockEncoding]: Total number of compositions: 105 [2020-10-05 22:37:02,625 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 38 transitions, 172 flow Received shutdown request... [2020-10-05 22:37:51,584 WARN L544 AbstractCegarLoop]: Verification canceled [2020-10-05 22:37:51,588 WARN L228 ceAbstractionStarter]: Timeout [2020-10-05 22:37:51,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:37:51 BasicIcfg [2020-10-05 22:37:51,588 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 22:37:51,593 INFO L168 Benchmark]: Toolchain (without parser) took 225724.30 ms. Allocated memory was 138.9 MB in the beginning and 3.5 GB in the end (delta: 3.3 GB). Free memory was 101.1 MB in the beginning and 1.8 GB in the end (delta: -1.7 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2020-10-05 22:37:51,594 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-05 22:37:51,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 645.85 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.8 MB in the beginning and 162.5 MB in the end (delta: -61.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-10-05 22:37:51,595 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.51 ms. Allocated memory is still 201.9 MB. Free memory was 161.8 MB in the beginning and 160.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-05 22:37:51,595 INFO L168 Benchmark]: Boogie Preprocessor took 26.61 ms. Allocated memory is still 201.9 MB. Free memory was 160.5 MB in the beginning and 159.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-05 22:37:51,596 INFO L168 Benchmark]: RCFGBuilder took 361.37 ms. Allocated memory is still 201.9 MB. Free memory was 158.5 MB in the beginning and 142.2 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2020-10-05 22:37:51,597 INFO L168 Benchmark]: TraceAbstraction took 224634.04 ms. Allocated memory was 201.9 MB in the beginning and 3.5 GB in the end (delta: 3.3 GB). Free memory was 142.2 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2020-10-05 22:37:51,599 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 645.85 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.8 MB in the beginning and 162.5 MB in the end (delta: -61.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.51 ms. Allocated memory is still 201.9 MB. Free memory was 161.8 MB in the beginning and 160.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.61 ms. Allocated memory is still 201.9 MB. Free memory was 160.5 MB in the beginning and 159.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 361.37 ms. Allocated memory is still 201.9 MB. Free memory was 158.5 MB in the beginning and 142.2 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 224634.04 ms. Allocated memory was 201.9 MB in the beginning and 3.5 GB in the end (delta: 3.3 GB). Free memory was 142.2 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.6s, 34 ProgramPointsBefore, 11 ProgramPointsAfterwards, 33 TransitionsBefore, 8 TransitionsAfterwards, 240 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 119 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 167 CheckedPairsTotal, 30 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 48 ProgramPointsBefore, 18 ProgramPointsAfterwards, 46 TransitionsBefore, 13 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 3 ChoiceCompositions, 466 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 22 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 1029 CheckedPairsTotal, 37 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 62 ProgramPointsBefore, 24 ProgramPointsAfterwards, 59 TransitionsBefore, 17 TransitionsAfterwards, 1656 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 4 ChoiceCompositions, 966 VarBasedMoverChecksPositive, 31 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 2190 CheckedPairsTotal, 48 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.9s, 76 ProgramPointsBefore, 30 ProgramPointsAfterwards, 72 TransitionsBefore, 23 TransitionsAfterwards, 2832 CoEnabledTransitionPairs, 6 FixpointIterations, 9 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 3 ChoiceCompositions, 1593 VarBasedMoverChecksPositive, 58 VarBasedMoverChecksNegative, 20 SemBasedMoverChecksPositive, 43 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 4290 CheckedPairsTotal, 63 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.0s, 90 ProgramPointsBefore, 36 ProgramPointsAfterwards, 85 TransitionsBefore, 28 TransitionsAfterwards, 4320 CoEnabledTransitionPairs, 6 FixpointIterations, 9 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 3 ChoiceCompositions, 2473 VarBasedMoverChecksPositive, 100 VarBasedMoverChecksNegative, 56 SemBasedMoverChecksPositive, 52 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 6467 CheckedPairsTotal, 76 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.2s, 104 ProgramPointsBefore, 42 ProgramPointsAfterwards, 98 TransitionsBefore, 33 TransitionsAfterwards, 6120 CoEnabledTransitionPairs, 6 FixpointIterations, 9 TrivialSequentialCompositions, 59 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 21 ConcurrentYvCompositions, 3 ChoiceCompositions, 3503 VarBasedMoverChecksPositive, 143 VarBasedMoverChecksNegative, 79 SemBasedMoverChecksPositive, 73 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 10327 CheckedPairsTotal, 89 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 118 ProgramPointsBefore, 48 ProgramPointsAfterwards, 111 TransitionsBefore, 34 TransitionsAfterwards, 8232 CoEnabledTransitionPairs, 6 FixpointIterations, 9 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 26 ConcurrentYvCompositions, 7 ChoiceCompositions, 4657 VarBasedMoverChecksPositive, 95 VarBasedMoverChecksNegative, 23 SemBasedMoverChecksPositive, 87 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 13237 CheckedPairsTotal, 95 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 132 ProgramPointsBefore, 54 ProgramPointsAfterwards, 124 TransitionsBefore, 38 TransitionsAfterwards, 10656 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 66 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 30 ConcurrentYvCompositions, 8 ChoiceCompositions, 6263 VarBasedMoverChecksPositive, 108 VarBasedMoverChecksNegative, 28 SemBasedMoverChecksPositive, 88 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 14930 CheckedPairsTotal, 105 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 680]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 680). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 54 places, 38 transitions, 172 flow. Already constructed 159177 states. Currently 40921 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 1 error locations. Started 8 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 224.2s, OverallIterations: 59, TraceHistogramMax: 8, AutomataDifference: 30.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 99.3s, HoareTripleCheckerStatistics: 1566 SDtfs, 1047 SDslu, 824 SDs, 0 SdLazy, 1192 SolverSat, 129 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=122716occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 91.6s AutomataMinimizationTime, 52 MinimizatonAttempts, 192156 StatesRemovedByMinimization, 51 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 712 NumberOfCodeBlocks, 712 NumberOfCodeBlocksAsserted, 59 NumberOfCheckSat, 555 ConstructedInterpolants, 0 QuantifiedInterpolants, 8977 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 52 InterpolantComputations, 52 PerfectInterpolantSequences, 582/582 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown