/usr/bin/java -Xmx16000000000 -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 0.1.25-7bb8cbd [2020-10-15 17:52:18,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 17:52:18,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 17:52:18,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 17:52:18,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 17:52:18,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 17:52:18,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 17:52:18,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 17:52:18,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 17:52:18,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 17:52:18,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 17:52:18,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 17:52:18,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 17:52:18,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 17:52:18,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 17:52:18,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 17:52:18,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 17:52:18,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 17:52:18,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 17:52:18,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 17:52:18,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 17:52:18,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 17:52:18,896 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 17:52:18,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 17:52:18,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 17:52:18,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 17:52:18,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 17:52:18,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 17:52:18,910 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 17:52:18,911 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 17:52:18,911 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 17:52:18,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 17:52:18,912 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 17:52:18,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 17:52:18,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 17:52:18,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 17:52:18,914 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 [2020-10-15 17:52:18,936 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 17:52:18,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 17:52:18,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 17:52:18,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 17:52:18,938 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 17:52:18,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 17:52:18,938 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 17:52:18,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 17:52:18,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 17:52:18,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 17:52:18,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 17:52:18,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 17:52:18,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 17:52:18,939 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 17:52:18,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 17:52:18,940 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 17:52:18,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 17:52:18,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 17:52:18,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 17:52:18,941 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 17:52:18,941 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 17:52:18,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 17:52:18,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 17:52:18,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 17:52:18,942 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 17:52:18,942 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 17:52:18,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 17:52:18,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 17:52:18,942 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 17:52:18,943 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 17:52:19,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 17:52:19,293 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 17:52:19,298 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 17:52:19,299 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 17:52:19,301 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 17:52:19,302 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i [2020-10-15 17:52:19,371 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf25d907c/c1e6ae096352446cb1953ff1e960a870/FLAG719ee1b00 [2020-10-15 17:52:19,889 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 17:52:19,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i [2020-10-15 17:52:19,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf25d907c/c1e6ae096352446cb1953ff1e960a870/FLAG719ee1b00 [2020-10-15 17:52:20,209 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf25d907c/c1e6ae096352446cb1953ff1e960a870 [2020-10-15 17:52:20,217 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 17:52:20,219 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 17:52:20,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 17:52:20,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 17:52:20,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 17:52:20,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:52:20" (1/1) ... [2020-10-15 17:52:20,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4814e3fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:52:20, skipping insertion in model container [2020-10-15 17:52:20,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:52:20" (1/1) ... [2020-10-15 17:52:20,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 17:52:20,303 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 17:52:20,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 17:52:20,731 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 17:52:20,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 17:52:20,865 INFO L208 MainTranslator]: Completed translation [2020-10-15 17:52:20,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:52:20 WrapperNode [2020-10-15 17:52:20,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 17:52:20,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 17:52:20,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 17:52:20,867 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 17:52:20,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:52:20" (1/1) ... [2020-10-15 17:52:20,891 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:52:20" (1/1) ... [2020-10-15 17:52:20,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 17:52:20,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 17:52:20,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 17:52:20,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 17:52:20,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:52:20" (1/1) ... [2020-10-15 17:52:20,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:52:20" (1/1) ... [2020-10-15 17:52:20,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:52:20" (1/1) ... [2020-10-15 17:52:20,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:52:20" (1/1) ... [2020-10-15 17:52:20,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:52:20" (1/1) ... [2020-10-15 17:52:20,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:52:20" (1/1) ... [2020-10-15 17:52:20,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:52:20" (1/1) ... [2020-10-15 17:52:20,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 17:52:20,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 17:52:20,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 17:52:20,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 17:52:20,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:52:20" (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 [2020-10-15 17:52:20,996 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-15 17:52:20,996 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-15 17:52:20,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 17:52:20,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 17:52:20,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 17:52:20,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 17:52:20,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 17:52:20,998 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 17:52:21,225 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 17:52:21,225 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-15 17:52:21,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:52:21 BoogieIcfgContainer [2020-10-15 17:52:21,227 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 17:52:21,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 17:52:21,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 17:52:21,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 17:52:21,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:52:20" (1/3) ... [2020-10-15 17:52:21,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f6a5e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:52:21, skipping insertion in model container [2020-10-15 17:52:21,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:52:20" (2/3) ... [2020-10-15 17:52:21,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f6a5e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:52:21, skipping insertion in model container [2020-10-15 17:52:21,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:52:21" (3/3) ... [2020-10-15 17:52:21,237 INFO L111 eAbstractionObserver]: Analyzing ICFG 45_monabsex1_vs.i [2020-10-15 17:52:21,262 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 17:52:21,262 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 17:52:21,272 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 17:52:21,273 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 17:52:21,302 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:21,302 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:21,302 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:21,303 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:21,303 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:21,304 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:21,304 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:21,304 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:21,305 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:21,305 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:21,305 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:21,305 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:21,306 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:21,306 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:21,310 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:21,310 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:21,311 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:21,311 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:21,311 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:21,312 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:21,331 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-15 17:52:21,353 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 17:52:21,353 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 17:52:21,353 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 17:52:21,353 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 17:52:21,354 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 17:52:21,354 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 17:52:21,354 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 17:52:21,354 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 17:52:21,365 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 17:52:21,368 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 33 transitions, 71 flow [2020-10-15 17:52:21,371 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 33 transitions, 71 flow [2020-10-15 17:52:21,373 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 34 places, 33 transitions, 71 flow [2020-10-15 17:52:21,418 INFO L129 PetriNetUnfolder]: 3/41 cut-off events. [2020-10-15 17:52:21,418 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 17:52:21,422 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. [2020-10-15 17:52:21,427 INFO L117 LiptonReduction]: Number of co-enabled transitions 240 [2020-10-15 17:52:21,972 INFO L132 LiptonReduction]: Checked pairs total: 209 [2020-10-15 17:52:21,973 INFO L134 LiptonReduction]: Total number of compositions: 32 [2020-10-15 17:52:21,980 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 11 places, 8 transitions, 21 flow [2020-10-15 17:52:21,989 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19 states. [2020-10-15 17:52:21,991 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-10-15 17:52:21,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-15 17:52:21,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:21,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-15 17:52:21,999 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 17:52:22,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:22,006 INFO L82 PathProgramCache]: Analyzing trace with hash 4687883, now seen corresponding path program 1 times [2020-10-15 17:52:22,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:22,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537657396] [2020-10-15 17:52:22,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:22,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 17:52:22,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537657396] [2020-10-15 17:52:22,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:22,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 17:52:22,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563767162] [2020-10-15 17:52:22,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-15 17:52:22,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:22,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-15 17:52:22,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 17:52:22,205 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2020-10-15 17:52:22,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:22,219 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-10-15 17:52:22,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-15 17:52:22,220 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-10-15 17:52:22,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:22,230 INFO L225 Difference]: With dead ends: 11 [2020-10-15 17:52:22,230 INFO L226 Difference]: Without dead ends: 11 [2020-10-15 17:52:22,235 INFO L677 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 [2020-10-15 17:52:22,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-10-15 17:52:22,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-10-15 17:52:22,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-15 17:52:22,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-10-15 17:52:22,268 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2020-10-15 17:52:22,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:22,268 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-10-15 17:52:22,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-15 17:52:22,268 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-10-15 17:52:22,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-15 17:52:22,269 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:22,269 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-15 17:52:22,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 17:52:22,269 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 17:52:22,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:22,270 INFO L82 PathProgramCache]: Analyzing trace with hash 210024220, now seen corresponding path program 1 times [2020-10-15 17:52:22,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:22,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759228571] [2020-10-15 17:52:22,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 17:52:22,326 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 17:52:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 17:52:22,341 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 17:52:22,362 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 17:52:22,362 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 17:52:22,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 17:52:22,365 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 17:52:22,365 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-15 17:52:22,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,373 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,373 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,373 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,374 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,374 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,374 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,374 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,375 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,375 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,375 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,376 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,376 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,376 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,376 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,376 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,377 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,377 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,377 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,377 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,377 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,378 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,378 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,378 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,378 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,379 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,379 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,379 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,380 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,380 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,380 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,382 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,382 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,382 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,382 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,383 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,383 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:22,384 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 17:52:22,385 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 17:52:22,385 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 17:52:22,385 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 17:52:22,385 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 17:52:22,385 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 17:52:22,385 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 17:52:22,386 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 17:52:22,386 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 17:52:22,388 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 17:52:22,388 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 46 transitions, 104 flow [2020-10-15 17:52:22,389 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 46 transitions, 104 flow [2020-10-15 17:52:22,389 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 48 places, 46 transitions, 104 flow [2020-10-15 17:52:22,411 INFO L129 PetriNetUnfolder]: 5/63 cut-off events. [2020-10-15 17:52:22,411 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-15 17:52:22,416 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. [2020-10-15 17:52:22,419 INFO L117 LiptonReduction]: Number of co-enabled transitions 792 [2020-10-15 17:52:23,023 INFO L132 LiptonReduction]: Checked pairs total: 1268 [2020-10-15 17:52:23,023 INFO L134 LiptonReduction]: Total number of compositions: 40 [2020-10-15 17:52:23,024 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 13 transitions, 38 flow [2020-10-15 17:52:23,029 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 100 states. [2020-10-15 17:52:23,030 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2020-10-15 17:52:23,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-15 17:52:23,030 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:23,031 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-15 17:52:23,031 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 17:52:23,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:23,031 INFO L82 PathProgramCache]: Analyzing trace with hash 240626158, now seen corresponding path program 1 times [2020-10-15 17:52:23,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:23,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575987777] [2020-10-15 17:52:23,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:23,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 17:52:23,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575987777] [2020-10-15 17:52:23,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:23,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:52:23,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954782963] [2020-10-15 17:52:23,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:52:23,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:23,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:52:23,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:23,075 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 3 states. [2020-10-15 17:52:23,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:23,104 INFO L93 Difference]: Finished difference Result 96 states and 197 transitions. [2020-10-15 17:52:23,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:23,105 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-15 17:52:23,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:23,109 INFO L225 Difference]: With dead ends: 96 [2020-10-15 17:52:23,110 INFO L226 Difference]: Without dead ends: 96 [2020-10-15 17:52:23,110 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:23,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-10-15 17:52:23,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 84. [2020-10-15 17:52:23,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-15 17:52:23,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 180 transitions. [2020-10-15 17:52:23,129 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 180 transitions. Word has length 5 [2020-10-15 17:52:23,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:23,129 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 180 transitions. [2020-10-15 17:52:23,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:52:23,130 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 180 transitions. [2020-10-15 17:52:23,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 17:52:23,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:23,130 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:23,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 17:52:23,131 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 17:52:23,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:23,131 INFO L82 PathProgramCache]: Analyzing trace with hash 109807895, now seen corresponding path program 1 times [2020-10-15 17:52:23,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:23,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565450559] [2020-10-15 17:52:23,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:23,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 17:52:23,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565450559] [2020-10-15 17:52:23,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:23,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:52:23,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840863218] [2020-10-15 17:52:23,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:52:23,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:23,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:52:23,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:23,168 INFO L87 Difference]: Start difference. First operand 84 states and 180 transitions. Second operand 3 states. [2020-10-15 17:52:23,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:23,207 INFO L93 Difference]: Finished difference Result 84 states and 164 transitions. [2020-10-15 17:52:23,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:23,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 17:52:23,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:23,209 INFO L225 Difference]: With dead ends: 84 [2020-10-15 17:52:23,210 INFO L226 Difference]: Without dead ends: 84 [2020-10-15 17:52:23,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:23,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-15 17:52:23,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 76. [2020-10-15 17:52:23,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-15 17:52:23,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 154 transitions. [2020-10-15 17:52:23,223 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 154 transitions. Word has length 8 [2020-10-15 17:52:23,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:23,223 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 154 transitions. [2020-10-15 17:52:23,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:52:23,224 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 154 transitions. [2020-10-15 17:52:23,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 17:52:23,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:23,224 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:23,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 17:52:23,225 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 17:52:23,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:23,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1655579211, now seen corresponding path program 1 times [2020-10-15 17:52:23,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:23,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311705227] [2020-10-15 17:52:23,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:23,292 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 17:52:23,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311705227] [2020-10-15 17:52:23,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:23,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:52:23,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059268674] [2020-10-15 17:52:23,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:52:23,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:23,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:52:23,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:52:23,294 INFO L87 Difference]: Start difference. First operand 76 states and 154 transitions. Second operand 4 states. [2020-10-15 17:52:23,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:23,329 INFO L93 Difference]: Finished difference Result 68 states and 136 transitions. [2020-10-15 17:52:23,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:23,330 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 17:52:23,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:23,331 INFO L225 Difference]: With dead ends: 68 [2020-10-15 17:52:23,331 INFO L226 Difference]: Without dead ends: 68 [2020-10-15 17:52:23,331 INFO L677 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 [2020-10-15 17:52:23,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-15 17:52:23,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 64. [2020-10-15 17:52:23,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-15 17:52:23,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 129 transitions. [2020-10-15 17:52:23,340 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 129 transitions. Word has length 9 [2020-10-15 17:52:23,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:23,340 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 129 transitions. [2020-10-15 17:52:23,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:52:23,340 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 129 transitions. [2020-10-15 17:52:23,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 17:52:23,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:23,341 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2020-10-15 17:52:23,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 17:52:23,342 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 17:52:23,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:23,342 INFO L82 PathProgramCache]: Analyzing trace with hash -891005170, now seen corresponding path program 1 times [2020-10-15 17:52:23,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:23,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174155292] [2020-10-15 17:52:23,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 17:52:23,357 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 17:52:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 17:52:23,366 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 17:52:23,372 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 17:52:23,372 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 17:52:23,372 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 17:52:23,373 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 17:52:23,374 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-15 17:52:23,380 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,380 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,381 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,381 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,381 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,382 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,382 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,382 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,382 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,383 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,383 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,383 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,383 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,385 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,386 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,386 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,386 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,386 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,388 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,388 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,388 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,389 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,389 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,389 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,389 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,390 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,390 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,392 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,393 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,393 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:23,397 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 17:52:23,397 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 17:52:23,398 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 17:52:23,398 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 17:52:23,398 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 17:52:23,398 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 17:52:23,398 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 17:52:23,398 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 17:52:23,398 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 17:52:23,401 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 17:52:23,401 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 59 transitions, 139 flow [2020-10-15 17:52:23,401 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 59 transitions, 139 flow [2020-10-15 17:52:23,401 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 62 places, 59 transitions, 139 flow [2020-10-15 17:52:23,419 INFO L129 PetriNetUnfolder]: 7/85 cut-off events. [2020-10-15 17:52:23,419 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-15 17:52:23,421 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. [2020-10-15 17:52:23,423 INFO L117 LiptonReduction]: Number of co-enabled transitions 1656 [2020-10-15 17:52:24,124 INFO L132 LiptonReduction]: Checked pairs total: 2526 [2020-10-15 17:52:24,125 INFO L134 LiptonReduction]: Total number of compositions: 52 [2020-10-15 17:52:24,125 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 17 transitions, 55 flow [2020-10-15 17:52:24,144 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 404 states. [2020-10-15 17:52:24,145 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states. [2020-10-15 17:52:24,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-15 17:52:24,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:24,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-15 17:52:24,147 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 17:52:24,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:24,148 INFO L82 PathProgramCache]: Analyzing trace with hash 359632331, now seen corresponding path program 1 times [2020-10-15 17:52:24,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:24,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89573416] [2020-10-15 17:52:24,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:24,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 17:52:24,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89573416] [2020-10-15 17:52:24,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:24,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:52:24,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590180141] [2020-10-15 17:52:24,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:52:24,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:24,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:52:24,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:24,172 INFO L87 Difference]: Start difference. First operand 404 states. Second operand 3 states. [2020-10-15 17:52:24,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:24,206 INFO L93 Difference]: Finished difference Result 447 states and 1247 transitions. [2020-10-15 17:52:24,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:24,207 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-15 17:52:24,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:24,218 INFO L225 Difference]: With dead ends: 447 [2020-10-15 17:52:24,218 INFO L226 Difference]: Without dead ends: 447 [2020-10-15 17:52:24,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:24,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-10-15 17:52:24,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 378. [2020-10-15 17:52:24,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2020-10-15 17:52:24,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 1099 transitions. [2020-10-15 17:52:24,302 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 1099 transitions. Word has length 5 [2020-10-15 17:52:24,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:24,302 INFO L481 AbstractCegarLoop]: Abstraction has 378 states and 1099 transitions. [2020-10-15 17:52:24,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:52:24,303 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 1099 transitions. [2020-10-15 17:52:24,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 17:52:24,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:24,305 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:24,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 17:52:24,305 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 17:52:24,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:24,306 INFO L82 PathProgramCache]: Analyzing trace with hash 2061810264, now seen corresponding path program 1 times [2020-10-15 17:52:24,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:24,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123938739] [2020-10-15 17:52:24,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:24,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 17:52:24,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123938739] [2020-10-15 17:52:24,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:24,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:52:24,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475626994] [2020-10-15 17:52:24,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:52:24,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:24,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:52:24,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:24,357 INFO L87 Difference]: Start difference. First operand 378 states and 1099 transitions. Second operand 3 states. [2020-10-15 17:52:24,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:24,395 INFO L93 Difference]: Finished difference Result 486 states and 1356 transitions. [2020-10-15 17:52:24,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:24,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 17:52:24,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:24,401 INFO L225 Difference]: With dead ends: 486 [2020-10-15 17:52:24,401 INFO L226 Difference]: Without dead ends: 486 [2020-10-15 17:52:24,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:24,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2020-10-15 17:52:24,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 412. [2020-10-15 17:52:24,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-10-15 17:52:24,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 1196 transitions. [2020-10-15 17:52:24,422 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 1196 transitions. Word has length 8 [2020-10-15 17:52:24,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:24,422 INFO L481 AbstractCegarLoop]: Abstraction has 412 states and 1196 transitions. [2020-10-15 17:52:24,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:52:24,423 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 1196 transitions. [2020-10-15 17:52:24,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 17:52:24,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:24,423 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:24,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 17:52:24,424 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 17:52:24,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:24,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1871610837, now seen corresponding path program 1 times [2020-10-15 17:52:24,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:24,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190915089] [2020-10-15 17:52:24,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:24,451 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 17:52:24,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190915089] [2020-10-15 17:52:24,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:24,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:52:24,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563198002] [2020-10-15 17:52:24,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:52:24,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:24,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:52:24,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:52:24,454 INFO L87 Difference]: Start difference. First operand 412 states and 1196 transitions. Second operand 4 states. [2020-10-15 17:52:24,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:24,488 INFO L93 Difference]: Finished difference Result 338 states and 962 transitions. [2020-10-15 17:52:24,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:24,489 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 17:52:24,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:24,491 INFO L225 Difference]: With dead ends: 338 [2020-10-15 17:52:24,492 INFO L226 Difference]: Without dead ends: 338 [2020-10-15 17:52:24,492 INFO L677 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 [2020-10-15 17:52:24,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-10-15 17:52:24,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 283. [2020-10-15 17:52:24,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-10-15 17:52:24,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 793 transitions. [2020-10-15 17:52:24,504 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 793 transitions. Word has length 9 [2020-10-15 17:52:24,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:24,504 INFO L481 AbstractCegarLoop]: Abstraction has 283 states and 793 transitions. [2020-10-15 17:52:24,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:52:24,505 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 793 transitions. [2020-10-15 17:52:24,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 17:52:24,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:24,505 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:24,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 17:52:24,506 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 17:52:24,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:24,506 INFO L82 PathProgramCache]: Analyzing trace with hash -508390409, now seen corresponding path program 1 times [2020-10-15 17:52:24,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:24,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856988721] [2020-10-15 17:52:24,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:24,536 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 17:52:24,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856988721] [2020-10-15 17:52:24,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:24,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:52:24,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744715670] [2020-10-15 17:52:24,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:52:24,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:24,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:52:24,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:52:24,539 INFO L87 Difference]: Start difference. First operand 283 states and 793 transitions. Second operand 4 states. [2020-10-15 17:52:24,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:24,566 INFO L93 Difference]: Finished difference Result 233 states and 641 transitions. [2020-10-15 17:52:24,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:24,567 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 17:52:24,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:24,568 INFO L225 Difference]: With dead ends: 233 [2020-10-15 17:52:24,569 INFO L226 Difference]: Without dead ends: 233 [2020-10-15 17:52:24,569 INFO L677 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 [2020-10-15 17:52:24,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-10-15 17:52:24,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 183. [2020-10-15 17:52:24,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-10-15 17:52:24,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 489 transitions. [2020-10-15 17:52:24,577 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 489 transitions. Word has length 9 [2020-10-15 17:52:24,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:24,577 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 489 transitions. [2020-10-15 17:52:24,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:52:24,578 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 489 transitions. [2020-10-15 17:52:24,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 17:52:24,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:24,579 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:24,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 17:52:24,579 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 17:52:24,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:24,580 INFO L82 PathProgramCache]: Analyzing trace with hash 960774069, now seen corresponding path program 1 times [2020-10-15 17:52:24,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:24,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706784804] [2020-10-15 17:52:24,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:24,604 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 17:52:24,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706784804] [2020-10-15 17:52:24,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:24,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:52:24,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036610761] [2020-10-15 17:52:24,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:52:24,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:24,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:52:24,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:24,606 INFO L87 Difference]: Start difference. First operand 183 states and 489 transitions. Second operand 3 states. [2020-10-15 17:52:24,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:24,625 INFO L93 Difference]: Finished difference Result 243 states and 634 transitions. [2020-10-15 17:52:24,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:24,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-15 17:52:24,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:24,628 INFO L225 Difference]: With dead ends: 243 [2020-10-15 17:52:24,628 INFO L226 Difference]: Without dead ends: 243 [2020-10-15 17:52:24,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:24,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-10-15 17:52:24,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 211. [2020-10-15 17:52:24,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-10-15 17:52:24,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 570 transitions. [2020-10-15 17:52:24,637 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 570 transitions. Word has length 11 [2020-10-15 17:52:24,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:24,638 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 570 transitions. [2020-10-15 17:52:24,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:52:24,638 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 570 transitions. [2020-10-15 17:52:24,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 17:52:24,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:24,640 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:24,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 17:52:24,640 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 17:52:24,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:24,640 INFO L82 PathProgramCache]: Analyzing trace with hash -280773966, now seen corresponding path program 1 times [2020-10-15 17:52:24,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:24,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222165326] [2020-10-15 17:52:24,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:24,697 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 17:52:24,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222165326] [2020-10-15 17:52:24,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:24,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:52:24,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525171191] [2020-10-15 17:52:24,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:52:24,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:24,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:52:24,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:52:24,699 INFO L87 Difference]: Start difference. First operand 211 states and 570 transitions. Second operand 4 states. [2020-10-15 17:52:24,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:24,722 INFO L93 Difference]: Finished difference Result 179 states and 474 transitions. [2020-10-15 17:52:24,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:24,722 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 17:52:24,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:24,724 INFO L225 Difference]: With dead ends: 179 [2020-10-15 17:52:24,724 INFO L226 Difference]: Without dead ends: 179 [2020-10-15 17:52:24,725 INFO L677 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 [2020-10-15 17:52:24,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-10-15 17:52:24,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 147. [2020-10-15 17:52:24,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-15 17:52:24,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 378 transitions. [2020-10-15 17:52:24,730 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 378 transitions. Word has length 12 [2020-10-15 17:52:24,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:24,731 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 378 transitions. [2020-10-15 17:52:24,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:52:24,731 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 378 transitions. [2020-10-15 17:52:24,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 17:52:24,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:24,732 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2020-10-15 17:52:24,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 17:52:24,732 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 17:52:24,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:24,732 INFO L82 PathProgramCache]: Analyzing trace with hash -280874677, now seen corresponding path program 1 times [2020-10-15 17:52:24,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:24,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031286587] [2020-10-15 17:52:24,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 17:52:24,742 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 17:52:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 17:52:24,748 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 17:52:24,753 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 17:52:24,753 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 17:52:24,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 17:52:24,754 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 17:52:24,754 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-15 17:52:24,761 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,761 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,761 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,761 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,762 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,762 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,762 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,762 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,762 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,762 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,763 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,763 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,763 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,763 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,763 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,764 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,764 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,764 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,764 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,764 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,764 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,765 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,765 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,765 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,765 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,765 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,765 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,766 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,766 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,766 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,766 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,766 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,766 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,767 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,767 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,767 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,767 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,767 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,768 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,768 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,768 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,768 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,768 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,768 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,769 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,769 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,769 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,769 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,769 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,769 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,769 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,770 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,770 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,770 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,770 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,770 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,771 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,771 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,771 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,771 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,771 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,771 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,773 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,773 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,773 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,773 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,774 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,774 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,775 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,775 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,775 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,775 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,776 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,776 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,777 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,777 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,777 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,778 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,778 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,778 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:24,779 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-15 17:52:24,779 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 17:52:24,780 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 17:52:24,780 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 17:52:24,780 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 17:52:24,780 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 17:52:24,780 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 17:52:24,780 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 17:52:24,780 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 17:52:24,781 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 17:52:24,782 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 72 transitions, 176 flow [2020-10-15 17:52:24,782 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 72 transitions, 176 flow [2020-10-15 17:52:24,782 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 72 transitions, 176 flow [2020-10-15 17:52:24,802 INFO L129 PetriNetUnfolder]: 9/107 cut-off events. [2020-10-15 17:52:24,802 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-15 17:52:24,804 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. [2020-10-15 17:52:24,808 INFO L117 LiptonReduction]: Number of co-enabled transitions 2832 [2020-10-15 17:52:25,681 INFO L132 LiptonReduction]: Checked pairs total: 5299 [2020-10-15 17:52:25,682 INFO L134 LiptonReduction]: Total number of compositions: 66 [2020-10-15 17:52:25,682 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 23 transitions, 78 flow [2020-10-15 17:52:25,771 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1620 states. [2020-10-15 17:52:25,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states. [2020-10-15 17:52:25,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-15 17:52:25,773 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:25,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-15 17:52:25,774 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 17:52:25,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:25,774 INFO L82 PathProgramCache]: Analyzing trace with hash 500888133, now seen corresponding path program 1 times [2020-10-15 17:52:25,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:25,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819624948] [2020-10-15 17:52:25,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:25,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:25,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 17:52:25,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819624948] [2020-10-15 17:52:25,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:25,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:52:25,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904892057] [2020-10-15 17:52:25,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:52:25,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:25,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:52:25,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:25,797 INFO L87 Difference]: Start difference. First operand 1620 states. Second operand 3 states. [2020-10-15 17:52:25,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:25,856 INFO L93 Difference]: Finished difference Result 1878 states and 6626 transitions. [2020-10-15 17:52:25,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:25,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-15 17:52:25,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:25,874 INFO L225 Difference]: With dead ends: 1878 [2020-10-15 17:52:25,875 INFO L226 Difference]: Without dead ends: 1878 [2020-10-15 17:52:25,875 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:25,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2020-10-15 17:52:25,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1572. [2020-10-15 17:52:25,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1572 states. [2020-10-15 17:52:25,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 5747 transitions. [2020-10-15 17:52:25,972 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 5747 transitions. Word has length 5 [2020-10-15 17:52:25,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:25,973 INFO L481 AbstractCegarLoop]: Abstraction has 1572 states and 5747 transitions. [2020-10-15 17:52:25,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:52:25,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 5747 transitions. [2020-10-15 17:52:25,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 17:52:25,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:25,974 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:25,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 17:52:25,974 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 17:52:25,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:25,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1111452433, now seen corresponding path program 1 times [2020-10-15 17:52:25,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:25,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652903503] [2020-10-15 17:52:25,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:26,008 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 17:52:26,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652903503] [2020-10-15 17:52:26,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:26,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:52:26,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896907874] [2020-10-15 17:52:26,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:52:26,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:26,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:52:26,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:26,011 INFO L87 Difference]: Start difference. First operand 1572 states and 5747 transitions. Second operand 3 states. [2020-10-15 17:52:26,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:26,071 INFO L93 Difference]: Finished difference Result 2193 states and 7798 transitions. [2020-10-15 17:52:26,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:26,071 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 17:52:26,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:26,091 INFO L225 Difference]: With dead ends: 2193 [2020-10-15 17:52:26,091 INFO L226 Difference]: Without dead ends: 2193 [2020-10-15 17:52:26,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:26,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2020-10-15 17:52:26,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 1828. [2020-10-15 17:52:26,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1828 states. [2020-10-15 17:52:26,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1828 states to 1828 states and 6732 transitions. [2020-10-15 17:52:26,237 INFO L78 Accepts]: Start accepts. Automaton has 1828 states and 6732 transitions. Word has length 8 [2020-10-15 17:52:26,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:26,237 INFO L481 AbstractCegarLoop]: Abstraction has 1828 states and 6732 transitions. [2020-10-15 17:52:26,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:52:26,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1828 states and 6732 transitions. [2020-10-15 17:52:26,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 17:52:26,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:26,238 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:26,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 17:52:26,238 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 17:52:26,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:26,239 INFO L82 PathProgramCache]: Analyzing trace with hash -231363678, now seen corresponding path program 1 times [2020-10-15 17:52:26,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:26,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079866122] [2020-10-15 17:52:26,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:26,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 17:52:26,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079866122] [2020-10-15 17:52:26,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:26,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:52:26,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192295830] [2020-10-15 17:52:26,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:52:26,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:26,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:52:26,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:52:26,275 INFO L87 Difference]: Start difference. First operand 1828 states and 6732 transitions. Second operand 4 states. [2020-10-15 17:52:26,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:26,318 INFO L93 Difference]: Finished difference Result 1463 states and 5301 transitions. [2020-10-15 17:52:26,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:26,319 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 17:52:26,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:26,332 INFO L225 Difference]: With dead ends: 1463 [2020-10-15 17:52:26,332 INFO L226 Difference]: Without dead ends: 1463 [2020-10-15 17:52:26,333 INFO L677 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 [2020-10-15 17:52:26,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2020-10-15 17:52:26,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 1177. [2020-10-15 17:52:26,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1177 states. [2020-10-15 17:52:26,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 4196 transitions. [2020-10-15 17:52:26,386 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 4196 transitions. Word has length 9 [2020-10-15 17:52:26,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:26,386 INFO L481 AbstractCegarLoop]: Abstraction has 1177 states and 4196 transitions. [2020-10-15 17:52:26,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:52:26,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 4196 transitions. [2020-10-15 17:52:26,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 17:52:26,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:26,387 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:26,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 17:52:26,387 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 17:52:26,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:26,387 INFO L82 PathProgramCache]: Analyzing trace with hash 95288963, now seen corresponding path program 1 times [2020-10-15 17:52:26,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:26,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181121646] [2020-10-15 17:52:26,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:26,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 17:52:26,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181121646] [2020-10-15 17:52:26,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:26,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:52:26,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824320808] [2020-10-15 17:52:26,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:52:26,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:26,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:52:26,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:52:26,410 INFO L87 Difference]: Start difference. First operand 1177 states and 4196 transitions. Second operand 4 states. [2020-10-15 17:52:26,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:26,451 INFO L93 Difference]: Finished difference Result 950 states and 3337 transitions. [2020-10-15 17:52:26,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:26,451 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 17:52:26,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:26,460 INFO L225 Difference]: With dead ends: 950 [2020-10-15 17:52:26,460 INFO L226 Difference]: Without dead ends: 950 [2020-10-15 17:52:26,461 INFO L677 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 [2020-10-15 17:52:26,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2020-10-15 17:52:26,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 723. [2020-10-15 17:52:26,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2020-10-15 17:52:26,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 2478 transitions. [2020-10-15 17:52:26,492 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 2478 transitions. Word has length 9 [2020-10-15 17:52:26,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:26,492 INFO L481 AbstractCegarLoop]: Abstraction has 723 states and 2478 transitions. [2020-10-15 17:52:26,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:52:26,493 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 2478 transitions. [2020-10-15 17:52:26,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 17:52:26,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:26,493 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:26,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 17:52:26,493 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 17:52:26,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:26,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1255400151, now seen corresponding path program 1 times [2020-10-15 17:52:26,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:26,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479684006] [2020-10-15 17:52:26,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:26,508 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 17:52:26,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479684006] [2020-10-15 17:52:26,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:26,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:52:26,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360846694] [2020-10-15 17:52:26,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:52:26,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:26,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:52:26,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:26,510 INFO L87 Difference]: Start difference. First operand 723 states and 2478 transitions. Second operand 3 states. [2020-10-15 17:52:26,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:26,543 INFO L93 Difference]: Finished difference Result 1044 states and 3505 transitions. [2020-10-15 17:52:26,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:26,543 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-15 17:52:26,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:26,552 INFO L225 Difference]: With dead ends: 1044 [2020-10-15 17:52:26,552 INFO L226 Difference]: Without dead ends: 1044 [2020-10-15 17:52:26,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:26,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2020-10-15 17:52:26,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 880. [2020-10-15 17:52:26,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2020-10-15 17:52:26,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 3058 transitions. [2020-10-15 17:52:26,588 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 3058 transitions. Word has length 11 [2020-10-15 17:52:26,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:26,589 INFO L481 AbstractCegarLoop]: Abstraction has 880 states and 3058 transitions. [2020-10-15 17:52:26,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:52:26,589 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 3058 transitions. [2020-10-15 17:52:26,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 17:52:26,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:26,590 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:26,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 17:52:26,590 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 17:52:26,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:26,591 INFO L82 PathProgramCache]: Analyzing trace with hash 262700715, now seen corresponding path program 1 times [2020-10-15 17:52:26,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:26,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877110] [2020-10-15 17:52:26,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:26,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:26,610 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 17:52:26,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877110] [2020-10-15 17:52:26,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:26,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:52:26,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416049678] [2020-10-15 17:52:26,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:52:26,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:26,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:52:26,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:52:26,612 INFO L87 Difference]: Start difference. First operand 880 states and 3058 transitions. Second operand 4 states. [2020-10-15 17:52:26,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:26,644 INFO L93 Difference]: Finished difference Result 716 states and 2447 transitions. [2020-10-15 17:52:26,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:26,644 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 17:52:26,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:26,650 INFO L225 Difference]: With dead ends: 716 [2020-10-15 17:52:26,650 INFO L226 Difference]: Without dead ends: 716 [2020-10-15 17:52:26,651 INFO L677 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 [2020-10-15 17:52:26,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-10-15 17:52:26,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 552. [2020-10-15 17:52:26,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2020-10-15 17:52:26,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 1836 transitions. [2020-10-15 17:52:26,672 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 1836 transitions. Word has length 12 [2020-10-15 17:52:26,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:26,672 INFO L481 AbstractCegarLoop]: Abstraction has 552 states and 1836 transitions. [2020-10-15 17:52:26,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:52:26,673 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 1836 transitions. [2020-10-15 17:52:26,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 17:52:26,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:26,674 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:26,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 17:52:26,674 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 17:52:26,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:26,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1066051238, now seen corresponding path program 1 times [2020-10-15 17:52:26,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:26,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395162336] [2020-10-15 17:52:26,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:26,690 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 17:52:26,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395162336] [2020-10-15 17:52:26,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:26,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:52:26,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95987234] [2020-10-15 17:52:26,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:52:26,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:26,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:52:26,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:26,692 INFO L87 Difference]: Start difference. First operand 552 states and 1836 transitions. Second operand 3 states. [2020-10-15 17:52:26,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:26,721 INFO L93 Difference]: Finished difference Result 756 states and 2485 transitions. [2020-10-15 17:52:26,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:26,721 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-15 17:52:26,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:26,728 INFO L225 Difference]: With dead ends: 756 [2020-10-15 17:52:26,728 INFO L226 Difference]: Without dead ends: 756 [2020-10-15 17:52:26,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:26,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-10-15 17:52:26,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 652. [2020-10-15 17:52:26,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2020-10-15 17:52:26,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 2203 transitions. [2020-10-15 17:52:26,753 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 2203 transitions. Word has length 14 [2020-10-15 17:52:26,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:26,753 INFO L481 AbstractCegarLoop]: Abstraction has 652 states and 2203 transitions. [2020-10-15 17:52:26,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:52:26,753 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 2203 transitions. [2020-10-15 17:52:26,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 17:52:26,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:26,754 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:26,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-15 17:52:26,755 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 17:52:26,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:26,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1312017708, now seen corresponding path program 1 times [2020-10-15 17:52:26,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:26,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296654734] [2020-10-15 17:52:26,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 17:52:26,764 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 17:52:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 17:52:26,771 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 17:52:26,776 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 17:52:26,776 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 17:52:26,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-15 17:52:26,777 WARN L371 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 17:52:26,777 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-15 17:52:26,784 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,785 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,785 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,785 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,785 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,785 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,785 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,785 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,786 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,786 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,786 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,786 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,786 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,786 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,786 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,787 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,787 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,787 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,787 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,787 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,787 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,787 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,788 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,788 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,788 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,788 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,788 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,788 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,788 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,789 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,789 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,789 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,789 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,789 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,789 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,789 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,790 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,790 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,790 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,790 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,790 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,790 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,791 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,791 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,791 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,791 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,791 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,791 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,791 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,792 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,792 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,792 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,792 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,792 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,792 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,793 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,793 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,793 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,793 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,793 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,793 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,794 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,794 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,794 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,794 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,794 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,794 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,794 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,795 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,795 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,795 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,795 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,795 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,796 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,796 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,796 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,797 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,797 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,797 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,798 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,798 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,798 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,799 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,799 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,799 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,799 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,800 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,800 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,801 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,801 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,801 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,801 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,801 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,801 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,802 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,803 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,803 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,803 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,803 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,803 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:26,804 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-15 17:52:26,805 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 17:52:26,805 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 17:52:26,805 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 17:52:26,805 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 17:52:26,805 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 17:52:26,805 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 17:52:26,805 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 17:52:26,805 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 17:52:26,807 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 17:52:26,807 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 85 transitions, 215 flow [2020-10-15 17:52:26,807 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 85 transitions, 215 flow [2020-10-15 17:52:26,807 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 90 places, 85 transitions, 215 flow [2020-10-15 17:52:26,826 INFO L129 PetriNetUnfolder]: 11/129 cut-off events. [2020-10-15 17:52:26,826 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-15 17:52:26,828 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. [2020-10-15 17:52:26,834 INFO L117 LiptonReduction]: Number of co-enabled transitions 4320 [2020-10-15 17:52:27,858 INFO L132 LiptonReduction]: Checked pairs total: 8003 [2020-10-15 17:52:27,858 INFO L134 LiptonReduction]: Total number of compositions: 79 [2020-10-15 17:52:27,858 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 28 transitions, 101 flow [2020-10-15 17:52:28,365 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6484 states. [2020-10-15 17:52:28,365 INFO L276 IsEmpty]: Start isEmpty. Operand 6484 states. [2020-10-15 17:52:28,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-15 17:52:28,366 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:28,366 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-15 17:52:28,366 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 17:52:28,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:28,366 INFO L82 PathProgramCache]: Analyzing trace with hash 666270871, now seen corresponding path program 1 times [2020-10-15 17:52:28,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:28,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306477364] [2020-10-15 17:52:28,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:28,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 17:52:28,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306477364] [2020-10-15 17:52:28,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:28,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:52:28,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811871540] [2020-10-15 17:52:28,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:52:28,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:28,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:52:28,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:28,384 INFO L87 Difference]: Start difference. First operand 6484 states. Second operand 3 states. [2020-10-15 17:52:28,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:28,516 INFO L93 Difference]: Finished difference Result 7629 states and 32588 transitions. [2020-10-15 17:52:28,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:28,517 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-15 17:52:28,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:28,582 INFO L225 Difference]: With dead ends: 7629 [2020-10-15 17:52:28,582 INFO L226 Difference]: Without dead ends: 7629 [2020-10-15 17:52:28,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:28,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7629 states. [2020-10-15 17:52:29,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7629 to 6366. [2020-10-15 17:52:29,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6366 states. [2020-10-15 17:52:29,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6366 states to 6366 states and 28029 transitions. [2020-10-15 17:52:29,051 INFO L78 Accepts]: Start accepts. Automaton has 6366 states and 28029 transitions. Word has length 5 [2020-10-15 17:52:29,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:29,052 INFO L481 AbstractCegarLoop]: Abstraction has 6366 states and 28029 transitions. [2020-10-15 17:52:29,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:52:29,052 INFO L276 IsEmpty]: Start isEmpty. Operand 6366 states and 28029 transitions. [2020-10-15 17:52:29,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 17:52:29,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:29,052 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:29,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-15 17:52:29,053 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 17:52:29,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:29,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1690072825, now seen corresponding path program 1 times [2020-10-15 17:52:29,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:29,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699601876] [2020-10-15 17:52:29,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:29,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 17:52:29,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699601876] [2020-10-15 17:52:29,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:29,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:52:29,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098086260] [2020-10-15 17:52:29,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:52:29,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:29,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:52:29,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:29,068 INFO L87 Difference]: Start difference. First operand 6366 states and 28029 transitions. Second operand 3 states. [2020-10-15 17:52:29,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:29,161 INFO L93 Difference]: Finished difference Result 9120 states and 39254 transitions. [2020-10-15 17:52:29,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:29,161 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 17:52:29,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:29,207 INFO L225 Difference]: With dead ends: 9120 [2020-10-15 17:52:29,208 INFO L226 Difference]: Without dead ends: 9120 [2020-10-15 17:52:29,208 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:29,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9120 states. [2020-10-15 17:52:29,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9120 to 7564. [2020-10-15 17:52:29,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7564 states. [2020-10-15 17:52:29,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7564 states to 7564 states and 33556 transitions. [2020-10-15 17:52:29,705 INFO L78 Accepts]: Start accepts. Automaton has 7564 states and 33556 transitions. Word has length 8 [2020-10-15 17:52:29,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:29,705 INFO L481 AbstractCegarLoop]: Abstraction has 7564 states and 33556 transitions. [2020-10-15 17:52:29,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:52:29,705 INFO L276 IsEmpty]: Start isEmpty. Operand 7564 states and 33556 transitions. [2020-10-15 17:52:29,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 17:52:29,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:29,706 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:29,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-15 17:52:29,706 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 17:52:29,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:29,707 INFO L82 PathProgramCache]: Analyzing trace with hash 868276956, now seen corresponding path program 1 times [2020-10-15 17:52:29,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:29,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305942055] [2020-10-15 17:52:29,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:29,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:29,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 17:52:29,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305942055] [2020-10-15 17:52:29,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:29,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:52:29,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459176391] [2020-10-15 17:52:29,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:52:29,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:29,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:52:29,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:52:29,729 INFO L87 Difference]: Start difference. First operand 7564 states and 33556 transitions. Second operand 4 states. [2020-10-15 17:52:29,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:29,793 INFO L93 Difference]: Finished difference Result 6008 states and 26302 transitions. [2020-10-15 17:52:29,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:29,793 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 17:52:29,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:29,820 INFO L225 Difference]: With dead ends: 6008 [2020-10-15 17:52:29,820 INFO L226 Difference]: Without dead ends: 6008 [2020-10-15 17:52:29,821 INFO L677 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 [2020-10-15 17:52:29,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6008 states. [2020-10-15 17:52:30,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6008 to 4771. [2020-10-15 17:52:30,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4771 states. [2020-10-15 17:52:30,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4771 states to 4771 states and 20598 transitions. [2020-10-15 17:52:30,095 INFO L78 Accepts]: Start accepts. Automaton has 4771 states and 20598 transitions. Word has length 9 [2020-10-15 17:52:30,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:30,096 INFO L481 AbstractCegarLoop]: Abstraction has 4771 states and 20598 transitions. [2020-10-15 17:52:30,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:52:30,096 INFO L276 IsEmpty]: Start isEmpty. Operand 4771 states and 20598 transitions. [2020-10-15 17:52:30,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 17:52:30,096 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:30,096 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:30,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-15 17:52:30,097 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 17:52:30,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:30,097 INFO L82 PathProgramCache]: Analyzing trace with hash 852652394, now seen corresponding path program 1 times [2020-10-15 17:52:30,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:30,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021291929] [2020-10-15 17:52:30,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:30,125 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 17:52:30,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021291929] [2020-10-15 17:52:30,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:30,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:52:30,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699558254] [2020-10-15 17:52:30,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:52:30,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:30,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:52:30,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:52:30,127 INFO L87 Difference]: Start difference. First operand 4771 states and 20598 transitions. Second operand 4 states. [2020-10-15 17:52:30,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:30,299 INFO L93 Difference]: Finished difference Result 3827 states and 16326 transitions. [2020-10-15 17:52:30,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:30,299 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 17:52:30,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:30,314 INFO L225 Difference]: With dead ends: 3827 [2020-10-15 17:52:30,314 INFO L226 Difference]: Without dead ends: 3827 [2020-10-15 17:52:30,314 INFO L677 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 [2020-10-15 17:52:30,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3827 states. [2020-10-15 17:52:30,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3827 to 2883. [2020-10-15 17:52:30,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2883 states. [2020-10-15 17:52:30,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2883 states to 2883 states and 12054 transitions. [2020-10-15 17:52:30,441 INFO L78 Accepts]: Start accepts. Automaton has 2883 states and 12054 transitions. Word has length 9 [2020-10-15 17:52:30,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:30,441 INFO L481 AbstractCegarLoop]: Abstraction has 2883 states and 12054 transitions. [2020-10-15 17:52:30,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:52:30,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2883 states and 12054 transitions. [2020-10-15 17:52:30,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 17:52:30,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:30,442 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:30,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-15 17:52:30,442 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 17:52:30,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:30,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1095418705, now seen corresponding path program 1 times [2020-10-15 17:52:30,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:30,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328872210] [2020-10-15 17:52:30,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:30,459 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 17:52:30,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328872210] [2020-10-15 17:52:30,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:30,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:52:30,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326785807] [2020-10-15 17:52:30,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:52:30,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:30,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:52:30,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:30,461 INFO L87 Difference]: Start difference. First operand 2883 states and 12054 transitions. Second operand 3 states. [2020-10-15 17:52:30,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:30,510 INFO L93 Difference]: Finished difference Result 4275 states and 17545 transitions. [2020-10-15 17:52:30,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:30,511 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-15 17:52:30,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:30,526 INFO L225 Difference]: With dead ends: 4275 [2020-10-15 17:52:30,526 INFO L226 Difference]: Without dead ends: 4275 [2020-10-15 17:52:30,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:30,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4275 states. [2020-10-15 17:52:30,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4275 to 3574. [2020-10-15 17:52:30,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3574 states. [2020-10-15 17:52:30,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3574 states to 3574 states and 15125 transitions. [2020-10-15 17:52:30,672 INFO L78 Accepts]: Start accepts. Automaton has 3574 states and 15125 transitions. Word has length 11 [2020-10-15 17:52:30,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:30,672 INFO L481 AbstractCegarLoop]: Abstraction has 3574 states and 15125 transitions. [2020-10-15 17:52:30,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:52:30,673 INFO L276 IsEmpty]: Start isEmpty. Operand 3574 states and 15125 transitions. [2020-10-15 17:52:30,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 17:52:30,673 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:30,673 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:30,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-15 17:52:30,674 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 17:52:30,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:30,674 INFO L82 PathProgramCache]: Analyzing trace with hash 401760447, now seen corresponding path program 1 times [2020-10-15 17:52:30,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:30,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736036538] [2020-10-15 17:52:30,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:30,696 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 17:52:30,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736036538] [2020-10-15 17:52:30,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:30,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:52:30,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089171978] [2020-10-15 17:52:30,697 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:52:30,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:30,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:52:30,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:52:30,698 INFO L87 Difference]: Start difference. First operand 3574 states and 15125 transitions. Second operand 4 states. [2020-10-15 17:52:30,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:30,743 INFO L93 Difference]: Finished difference Result 2873 states and 12004 transitions. [2020-10-15 17:52:30,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:30,743 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 17:52:30,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:30,754 INFO L225 Difference]: With dead ends: 2873 [2020-10-15 17:52:30,755 INFO L226 Difference]: Without dead ends: 2873 [2020-10-15 17:52:30,755 INFO L677 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 [2020-10-15 17:52:30,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2873 states. [2020-10-15 17:52:30,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2873 to 2172. [2020-10-15 17:52:30,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2172 states. [2020-10-15 17:52:30,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2172 states to 2172 states and 8883 transitions. [2020-10-15 17:52:30,846 INFO L78 Accepts]: Start accepts. Automaton has 2172 states and 8883 transitions. Word has length 12 [2020-10-15 17:52:30,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:30,846 INFO L481 AbstractCegarLoop]: Abstraction has 2172 states and 8883 transitions. [2020-10-15 17:52:30,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:52:30,847 INFO L276 IsEmpty]: Start isEmpty. Operand 2172 states and 8883 transitions. [2020-10-15 17:52:30,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 17:52:30,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:30,848 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:30,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-15 17:52:30,848 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 17:52:30,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:30,848 INFO L82 PathProgramCache]: Analyzing trace with hash -596519610, now seen corresponding path program 1 times [2020-10-15 17:52:30,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:30,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705377951] [2020-10-15 17:52:30,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:30,865 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 17:52:30,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705377951] [2020-10-15 17:52:30,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:30,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:52:30,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173523613] [2020-10-15 17:52:30,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:52:30,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:30,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:52:30,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:30,867 INFO L87 Difference]: Start difference. First operand 2172 states and 8883 transitions. Second operand 3 states. [2020-10-15 17:52:30,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:30,909 INFO L93 Difference]: Finished difference Result 3177 states and 12799 transitions. [2020-10-15 17:52:30,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:30,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-15 17:52:30,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:30,921 INFO L225 Difference]: With dead ends: 3177 [2020-10-15 17:52:30,921 INFO L226 Difference]: Without dead ends: 3177 [2020-10-15 17:52:30,922 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:30,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3177 states. [2020-10-15 17:52:31,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3177 to 2671. [2020-10-15 17:52:31,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2671 states. [2020-10-15 17:52:31,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2671 states to 2671 states and 11075 transitions. [2020-10-15 17:52:31,014 INFO L78 Accepts]: Start accepts. Automaton has 2671 states and 11075 transitions. Word has length 14 [2020-10-15 17:52:31,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:31,014 INFO L481 AbstractCegarLoop]: Abstraction has 2671 states and 11075 transitions. [2020-10-15 17:52:31,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:52:31,015 INFO L276 IsEmpty]: Start isEmpty. Operand 2671 states and 11075 transitions. [2020-10-15 17:52:31,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 17:52:31,015 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:31,016 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:31,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-15 17:52:31,016 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 17:52:31,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:31,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1312236012, now seen corresponding path program 1 times [2020-10-15 17:52:31,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:31,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80751674] [2020-10-15 17:52:31,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:31,046 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 17:52:31,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80751674] [2020-10-15 17:52:31,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:31,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:52:31,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766188627] [2020-10-15 17:52:31,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:52:31,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:31,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:52:31,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:52:31,048 INFO L87 Difference]: Start difference. First operand 2671 states and 11075 transitions. Second operand 4 states. [2020-10-15 17:52:31,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:31,175 INFO L93 Difference]: Finished difference Result 2165 states and 8845 transitions. [2020-10-15 17:52:31,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:31,176 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-15 17:52:31,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:31,183 INFO L225 Difference]: With dead ends: 2165 [2020-10-15 17:52:31,183 INFO L226 Difference]: Without dead ends: 2165 [2020-10-15 17:52:31,183 INFO L677 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 [2020-10-15 17:52:31,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2020-10-15 17:52:31,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 1659. [2020-10-15 17:52:31,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1659 states. [2020-10-15 17:52:31,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1659 states to 1659 states and 6615 transitions. [2020-10-15 17:52:31,243 INFO L78 Accepts]: Start accepts. Automaton has 1659 states and 6615 transitions. Word has length 15 [2020-10-15 17:52:31,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:31,245 INFO L481 AbstractCegarLoop]: Abstraction has 1659 states and 6615 transitions. [2020-10-15 17:52:31,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:52:31,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1659 states and 6615 transitions. [2020-10-15 17:52:31,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 17:52:31,246 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:31,247 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:31,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-15 17:52:31,247 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 17:52:31,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:31,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1514810044, now seen corresponding path program 1 times [2020-10-15 17:52:31,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:31,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722137387] [2020-10-15 17:52:31,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:31,284 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-15 17:52:31,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722137387] [2020-10-15 17:52:31,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:31,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:52:31,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619152028] [2020-10-15 17:52:31,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:52:31,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:31,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:52:31,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:31,287 INFO L87 Difference]: Start difference. First operand 1659 states and 6615 transitions. Second operand 3 states. [2020-10-15 17:52:31,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:31,324 INFO L93 Difference]: Finished difference Result 2295 states and 9088 transitions. [2020-10-15 17:52:31,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:31,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-15 17:52:31,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:31,333 INFO L225 Difference]: With dead ends: 2295 [2020-10-15 17:52:31,333 INFO L226 Difference]: Without dead ends: 2295 [2020-10-15 17:52:31,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:31,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2020-10-15 17:52:31,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 1975. [2020-10-15 17:52:31,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1975 states. [2020-10-15 17:52:31,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1975 states to 1975 states and 8000 transitions. [2020-10-15 17:52:31,401 INFO L78 Accepts]: Start accepts. Automaton has 1975 states and 8000 transitions. Word has length 17 [2020-10-15 17:52:31,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:31,401 INFO L481 AbstractCegarLoop]: Abstraction has 1975 states and 8000 transitions. [2020-10-15 17:52:31,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:52:31,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1975 states and 8000 transitions. [2020-10-15 17:52:31,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 17:52:31,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:31,403 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:31,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-15 17:52:31,404 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 17:52:31,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:31,404 INFO L82 PathProgramCache]: Analyzing trace with hash -285527274, now seen corresponding path program 1 times [2020-10-15 17:52:31,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:31,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503785926] [2020-10-15 17:52:31,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:31,434 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-15 17:52:31,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503785926] [2020-10-15 17:52:31,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:31,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:52:31,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030825260] [2020-10-15 17:52:31,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:52:31,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:31,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:52:31,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:52:31,436 INFO L87 Difference]: Start difference. First operand 1975 states and 8000 transitions. Second operand 4 states. [2020-10-15 17:52:31,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:31,474 INFO L93 Difference]: Finished difference Result 1655 states and 6592 transitions. [2020-10-15 17:52:31,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:31,475 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-15 17:52:31,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:31,479 INFO L225 Difference]: With dead ends: 1655 [2020-10-15 17:52:31,479 INFO L226 Difference]: Without dead ends: 1655 [2020-10-15 17:52:31,480 INFO L677 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 [2020-10-15 17:52:31,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2020-10-15 17:52:31,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1335. [2020-10-15 17:52:31,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1335 states. [2020-10-15 17:52:31,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 5184 transitions. [2020-10-15 17:52:31,524 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 5184 transitions. Word has length 18 [2020-10-15 17:52:31,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:31,525 INFO L481 AbstractCegarLoop]: Abstraction has 1335 states and 5184 transitions. [2020-10-15 17:52:31,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:52:31,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 5184 transitions. [2020-10-15 17:52:31,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 17:52:31,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:31,527 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:31,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-15 17:52:31,528 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 17:52:31,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:31,528 INFO L82 PathProgramCache]: Analyzing trace with hash -285687237, now seen corresponding path program 1 times [2020-10-15 17:52:31,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:31,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935430957] [2020-10-15 17:52:31,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 17:52:31,543 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 17:52:31,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 17:52:31,557 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 17:52:31,570 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 17:52:31,571 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 17:52:31,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-15 17:52:31,571 WARN L371 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 17:52:31,573 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-10-15 17:52:31,582 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,583 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,583 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,583 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,583 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,583 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,584 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,584 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,584 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,584 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,584 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,584 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,584 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,585 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,586 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,586 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,586 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,586 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,587 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,587 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,587 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,587 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,587 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,587 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,587 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,588 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,588 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,588 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,588 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,588 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,588 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,588 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,589 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,589 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,589 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,589 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,589 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,589 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,589 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,590 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,590 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,590 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,590 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,590 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,590 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,590 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,591 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,591 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,591 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,591 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,591 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,591 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,591 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,591 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,592 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,592 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,592 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,593 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,593 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,593 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,593 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,593 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,593 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,593 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,593 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,594 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,594 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,594 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,594 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,594 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,595 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,595 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,595 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,595 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,595 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,596 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,596 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,596 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,596 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,596 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,596 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,596 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,597 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,597 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,597 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,597 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,597 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,597 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,598 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,598 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,599 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,599 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,599 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,599 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,599 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,600 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,601 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,601 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,601 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,601 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,601 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,601 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,603 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,603 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,604 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,604 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,604 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,604 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,605 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,605 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,605 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,605 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,606 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,606 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,607 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,607 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,607 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,607 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,608 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,608 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:31,609 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-15 17:52:31,609 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 17:52:31,609 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 17:52:31,609 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 17:52:31,609 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 17:52:31,609 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 17:52:31,609 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 17:52:31,609 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 17:52:31,610 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 17:52:31,611 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 17:52:31,611 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 98 transitions, 256 flow [2020-10-15 17:52:31,611 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 98 transitions, 256 flow [2020-10-15 17:52:31,611 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 104 places, 98 transitions, 256 flow [2020-10-15 17:52:31,629 INFO L129 PetriNetUnfolder]: 13/151 cut-off events. [2020-10-15 17:52:31,630 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-15 17:52:31,632 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. [2020-10-15 17:52:31,639 INFO L117 LiptonReduction]: Number of co-enabled transitions 6120 [2020-10-15 17:52:32,806 INFO L132 LiptonReduction]: Checked pairs total: 12557 [2020-10-15 17:52:32,806 INFO L134 LiptonReduction]: Total number of compositions: 92 [2020-10-15 17:52:32,806 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 33 transitions, 126 flow [2020-10-15 17:52:36,671 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 25940 states. [2020-10-15 17:52:36,671 INFO L276 IsEmpty]: Start isEmpty. Operand 25940 states. [2020-10-15 17:52:36,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-15 17:52:36,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:36,672 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-15 17:52:36,672 INFO L429 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]=== [2020-10-15 17:52:36,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:36,672 INFO L82 PathProgramCache]: Analyzing trace with hash 862156483, now seen corresponding path program 1 times [2020-10-15 17:52:36,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:36,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489255723] [2020-10-15 17:52:36,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:36,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:36,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 17:52:36,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489255723] [2020-10-15 17:52:36,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:36,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:52:36,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140145315] [2020-10-15 17:52:36,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:52:36,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:36,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:52:36,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:36,689 INFO L87 Difference]: Start difference. First operand 25940 states. Second operand 3 states. [2020-10-15 17:52:36,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:36,945 INFO L93 Difference]: Finished difference Result 30660 states and 153869 transitions. [2020-10-15 17:52:36,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:36,946 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-15 17:52:36,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:37,040 INFO L225 Difference]: With dead ends: 30660 [2020-10-15 17:52:37,040 INFO L226 Difference]: Without dead ends: 30660 [2020-10-15 17:52:37,040 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:39,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30660 states. [2020-10-15 17:52:40,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30660 to 25560. [2020-10-15 17:52:40,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25560 states. [2020-10-15 17:52:40,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25560 states to 25560 states and 131665 transitions. [2020-10-15 17:52:40,213 INFO L78 Accepts]: Start accepts. Automaton has 25560 states and 131665 transitions. Word has length 5 [2020-10-15 17:52:40,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:40,214 INFO L481 AbstractCegarLoop]: Abstraction has 25560 states and 131665 transitions. [2020-10-15 17:52:40,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:52:40,214 INFO L276 IsEmpty]: Start isEmpty. Operand 25560 states and 131665 transitions. [2020-10-15 17:52:40,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 17:52:40,214 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:40,214 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:40,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-15 17:52:40,215 INFO L429 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]=== [2020-10-15 17:52:40,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:40,215 INFO L82 PathProgramCache]: Analyzing trace with hash 422134040, now seen corresponding path program 1 times [2020-10-15 17:52:40,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:40,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886786864] [2020-10-15 17:52:40,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:40,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 17:52:40,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886786864] [2020-10-15 17:52:40,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:40,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:52:40,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122328844] [2020-10-15 17:52:40,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:52:40,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:40,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:52:40,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:40,235 INFO L87 Difference]: Start difference. First operand 25560 states and 131665 transitions. Second operand 3 states. [2020-10-15 17:52:40,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:40,575 INFO L93 Difference]: Finished difference Result 36927 states and 186525 transitions. [2020-10-15 17:52:40,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:40,576 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 17:52:40,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:40,770 INFO L225 Difference]: With dead ends: 36927 [2020-10-15 17:52:40,771 INFO L226 Difference]: Without dead ends: 36927 [2020-10-15 17:52:40,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:42,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36927 states. [2020-10-15 17:52:43,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36927 to 30580. [2020-10-15 17:52:43,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30580 states. [2020-10-15 17:52:43,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30580 states to 30580 states and 158564 transitions. [2020-10-15 17:52:43,552 INFO L78 Accepts]: Start accepts. Automaton has 30580 states and 158564 transitions. Word has length 8 [2020-10-15 17:52:43,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:43,552 INFO L481 AbstractCegarLoop]: Abstraction has 30580 states and 158564 transitions. [2020-10-15 17:52:43,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:52:43,552 INFO L276 IsEmpty]: Start isEmpty. Operand 30580 states and 158564 transitions. [2020-10-15 17:52:43,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 17:52:43,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:43,553 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:43,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-15 17:52:43,553 INFO L429 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]=== [2020-10-15 17:52:43,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:43,553 INFO L82 PathProgramCache]: Analyzing trace with hash 203971322, now seen corresponding path program 1 times [2020-10-15 17:52:43,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:43,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165989418] [2020-10-15 17:52:43,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:43,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-15 17:52:43,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165989418] [2020-10-15 17:52:43,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:43,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:52:43,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486932210] [2020-10-15 17:52:43,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:52:43,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:43,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:52:43,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:52:43,571 INFO L87 Difference]: Start difference. First operand 30580 states and 158564 transitions. Second operand 4 states. [2020-10-15 17:52:43,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:43,734 INFO L93 Difference]: Finished difference Result 24233 states and 124256 transitions. [2020-10-15 17:52:43,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:43,734 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 17:52:43,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:43,807 INFO L225 Difference]: With dead ends: 24233 [2020-10-15 17:52:43,807 INFO L226 Difference]: Without dead ends: 24233 [2020-10-15 17:52:43,807 INFO L677 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 [2020-10-15 17:52:44,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24233 states. [2020-10-15 17:52:46,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24233 to 19165. [2020-10-15 17:52:46,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19165 states. [2020-10-15 17:52:46,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19165 states to 19165 states and 97114 transitions. [2020-10-15 17:52:46,911 INFO L78 Accepts]: Start accepts. Automaton has 19165 states and 97114 transitions. Word has length 9 [2020-10-15 17:52:46,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:46,911 INFO L481 AbstractCegarLoop]: Abstraction has 19165 states and 97114 transitions. [2020-10-15 17:52:46,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:52:46,912 INFO L276 IsEmpty]: Start isEmpty. Operand 19165 states and 97114 transitions. [2020-10-15 17:52:46,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 17:52:46,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:46,912 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:46,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-15 17:52:46,913 INFO L429 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]=== [2020-10-15 17:52:46,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:46,913 INFO L82 PathProgramCache]: Analyzing trace with hash 201256629, now seen corresponding path program 1 times [2020-10-15 17:52:46,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:46,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144417479] [2020-10-15 17:52:46,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:46,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 17:52:46,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144417479] [2020-10-15 17:52:46,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:46,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:52:46,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831694594] [2020-10-15 17:52:46,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:52:46,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:46,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:52:46,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:52:46,930 INFO L87 Difference]: Start difference. First operand 19165 states and 97114 transitions. Second operand 4 states. [2020-10-15 17:52:47,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:47,075 INFO L93 Difference]: Finished difference Result 15344 states and 76976 transitions. [2020-10-15 17:52:47,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:47,075 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 17:52:47,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:47,140 INFO L225 Difference]: With dead ends: 15344 [2020-10-15 17:52:47,140 INFO L226 Difference]: Without dead ends: 15344 [2020-10-15 17:52:47,141 INFO L677 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 [2020-10-15 17:52:47,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15344 states. [2020-10-15 17:52:47,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15344 to 11523. [2020-10-15 17:52:47,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11523 states. [2020-10-15 17:52:47,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11523 states to 11523 states and 56838 transitions. [2020-10-15 17:52:47,733 INFO L78 Accepts]: Start accepts. Automaton has 11523 states and 56838 transitions. Word has length 9 [2020-10-15 17:52:47,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:47,733 INFO L481 AbstractCegarLoop]: Abstraction has 11523 states and 56838 transitions. [2020-10-15 17:52:47,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:52:47,733 INFO L276 IsEmpty]: Start isEmpty. Operand 11523 states and 56838 transitions. [2020-10-15 17:52:47,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 17:52:47,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:47,734 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:47,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-15 17:52:47,734 INFO L429 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]=== [2020-10-15 17:52:47,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:47,734 INFO L82 PathProgramCache]: Analyzing trace with hash -40974610, now seen corresponding path program 1 times [2020-10-15 17:52:47,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:47,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613438326] [2020-10-15 17:52:47,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:47,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:47,746 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 17:52:47,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613438326] [2020-10-15 17:52:47,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:47,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:52:47,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040902377] [2020-10-15 17:52:47,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:52:47,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:47,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:52:47,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:47,748 INFO L87 Difference]: Start difference. First operand 11523 states and 56838 transitions. Second operand 3 states. [2020-10-15 17:52:47,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:47,905 INFO L93 Difference]: Finished difference Result 17226 states and 83578 transitions. [2020-10-15 17:52:47,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:47,905 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-15 17:52:47,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:47,956 INFO L225 Difference]: With dead ends: 17226 [2020-10-15 17:52:47,956 INFO L226 Difference]: Without dead ends: 17226 [2020-10-15 17:52:47,957 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:48,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17226 states. [2020-10-15 17:52:48,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17226 to 14368. [2020-10-15 17:52:48,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14368 states. [2020-10-15 17:52:48,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14368 states to 14368 states and 71601 transitions. [2020-10-15 17:52:48,946 INFO L78 Accepts]: Start accepts. Automaton has 14368 states and 71601 transitions. Word has length 11 [2020-10-15 17:52:48,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:48,947 INFO L481 AbstractCegarLoop]: Abstraction has 14368 states and 71601 transitions. [2020-10-15 17:52:48,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:52:48,947 INFO L276 IsEmpty]: Start isEmpty. Operand 14368 states and 71601 transitions. [2020-10-15 17:52:48,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 17:52:48,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:48,947 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:48,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-15 17:52:48,948 INFO L429 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]=== [2020-10-15 17:52:48,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:48,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1270210238, now seen corresponding path program 1 times [2020-10-15 17:52:48,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:48,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805521445] [2020-10-15 17:52:48,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:48,970 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 17:52:48,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805521445] [2020-10-15 17:52:48,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:48,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:52:48,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329880287] [2020-10-15 17:52:48,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:52:48,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:48,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:52:48,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:52:48,972 INFO L87 Difference]: Start difference. First operand 14368 states and 71601 transitions. Second operand 4 states. [2020-10-15 17:52:49,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:49,070 INFO L93 Difference]: Finished difference Result 11510 states and 56766 transitions. [2020-10-15 17:52:49,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:49,070 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 17:52:49,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:49,099 INFO L225 Difference]: With dead ends: 11510 [2020-10-15 17:52:49,100 INFO L226 Difference]: Without dead ends: 11510 [2020-10-15 17:52:49,100 INFO L677 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 [2020-10-15 17:52:49,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11510 states. [2020-10-15 17:52:49,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11510 to 8652. [2020-10-15 17:52:49,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8652 states. [2020-10-15 17:52:49,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8652 states to 8652 states and 41931 transitions. [2020-10-15 17:52:49,436 INFO L78 Accepts]: Start accepts. Automaton has 8652 states and 41931 transitions. Word has length 12 [2020-10-15 17:52:49,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:49,437 INFO L481 AbstractCegarLoop]: Abstraction has 8652 states and 41931 transitions. [2020-10-15 17:52:49,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:52:49,437 INFO L276 IsEmpty]: Start isEmpty. Operand 8652 states and 41931 transitions. [2020-10-15 17:52:49,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 17:52:49,437 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:49,437 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:49,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-15 17:52:49,438 INFO L429 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]=== [2020-10-15 17:52:49,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:49,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1064251902, now seen corresponding path program 1 times [2020-10-15 17:52:49,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:49,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053214584] [2020-10-15 17:52:49,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:49,460 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 17:52:49,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053214584] [2020-10-15 17:52:49,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:49,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:52:49,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993143926] [2020-10-15 17:52:49,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:52:49,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:49,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:52:49,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:49,462 INFO L87 Difference]: Start difference. First operand 8652 states and 41931 transitions. Second operand 3 states. [2020-10-15 17:52:49,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:49,560 INFO L93 Difference]: Finished difference Result 12888 states and 61498 transitions. [2020-10-15 17:52:49,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:49,561 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-15 17:52:49,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:49,592 INFO L225 Difference]: With dead ends: 12888 [2020-10-15 17:52:49,593 INFO L226 Difference]: Without dead ends: 12888 [2020-10-15 17:52:49,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:49,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12888 states. [2020-10-15 17:52:49,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12888 to 10765. [2020-10-15 17:52:49,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10765 states. [2020-10-15 17:52:49,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10765 states to 10765 states and 52746 transitions. [2020-10-15 17:52:49,969 INFO L78 Accepts]: Start accepts. Automaton has 10765 states and 52746 transitions. Word has length 14 [2020-10-15 17:52:49,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:49,969 INFO L481 AbstractCegarLoop]: Abstraction has 10765 states and 52746 transitions. [2020-10-15 17:52:49,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:52:49,970 INFO L276 IsEmpty]: Start isEmpty. Operand 10765 states and 52746 transitions. [2020-10-15 17:52:49,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 17:52:49,970 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:49,970 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:49,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-15 17:52:49,971 INFO L429 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]=== [2020-10-15 17:52:49,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:49,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1367932408, now seen corresponding path program 1 times [2020-10-15 17:52:49,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:49,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558089815] [2020-10-15 17:52:49,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:49,996 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 17:52:49,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558089815] [2020-10-15 17:52:49,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:49,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:52:49,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271110222] [2020-10-15 17:52:49,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:52:49,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:49,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:52:49,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:52:49,997 INFO L87 Difference]: Start difference. First operand 10765 states and 52746 transitions. Second operand 4 states. [2020-10-15 17:52:50,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:50,094 INFO L93 Difference]: Finished difference Result 8642 states and 41871 transitions. [2020-10-15 17:52:50,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:50,094 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-15 17:52:50,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:50,119 INFO L225 Difference]: With dead ends: 8642 [2020-10-15 17:52:50,119 INFO L226 Difference]: Without dead ends: 8642 [2020-10-15 17:52:50,120 INFO L677 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 [2020-10-15 17:52:50,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8642 states. [2020-10-15 17:52:50,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8642 to 6519. [2020-10-15 17:52:50,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6519 states. [2020-10-15 17:52:50,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6519 states to 6519 states and 30996 transitions. [2020-10-15 17:52:50,357 INFO L78 Accepts]: Start accepts. Automaton has 6519 states and 30996 transitions. Word has length 15 [2020-10-15 17:52:50,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:50,357 INFO L481 AbstractCegarLoop]: Abstraction has 6519 states and 30996 transitions. [2020-10-15 17:52:50,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:52:50,357 INFO L276 IsEmpty]: Start isEmpty. Operand 6519 states and 30996 transitions. [2020-10-15 17:52:50,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 17:52:50,358 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:50,358 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:50,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-15 17:52:50,358 INFO L429 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]=== [2020-10-15 17:52:50,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:50,359 INFO L82 PathProgramCache]: Analyzing trace with hash 152749525, now seen corresponding path program 1 times [2020-10-15 17:52:50,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:50,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659587376] [2020-10-15 17:52:50,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:50,372 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-15 17:52:50,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659587376] [2020-10-15 17:52:50,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:50,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:52:50,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964226912] [2020-10-15 17:52:50,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:52:50,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:50,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:52:50,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:50,374 INFO L87 Difference]: Start difference. First operand 6519 states and 30996 transitions. Second operand 3 states. [2020-10-15 17:52:50,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:50,486 INFO L93 Difference]: Finished difference Result 9576 states and 44989 transitions. [2020-10-15 17:52:50,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:50,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-15 17:52:50,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:50,519 INFO L225 Difference]: With dead ends: 9576 [2020-10-15 17:52:50,519 INFO L226 Difference]: Without dead ends: 9576 [2020-10-15 17:52:50,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:50,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9576 states. [2020-10-15 17:52:50,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9576 to 8044. [2020-10-15 17:52:50,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8044 states. [2020-10-15 17:52:50,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8044 states to 8044 states and 38736 transitions. [2020-10-15 17:52:50,773 INFO L78 Accepts]: Start accepts. Automaton has 8044 states and 38736 transitions. Word has length 17 [2020-10-15 17:52:50,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:50,773 INFO L481 AbstractCegarLoop]: Abstraction has 8044 states and 38736 transitions. [2020-10-15 17:52:50,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:52:50,773 INFO L276 IsEmpty]: Start isEmpty. Operand 8044 states and 38736 transitions. [2020-10-15 17:52:50,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 17:52:50,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:50,775 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:50,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-15 17:52:50,775 INFO L429 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]=== [2020-10-15 17:52:50,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:50,776 INFO L82 PathProgramCache]: Analyzing trace with hash 440270196, now seen corresponding path program 1 times [2020-10-15 17:52:50,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:50,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944736641] [2020-10-15 17:52:50,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:50,801 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-15 17:52:50,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944736641] [2020-10-15 17:52:50,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:50,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:52:50,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701236728] [2020-10-15 17:52:50,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:52:50,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:50,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:52:50,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:52:50,803 INFO L87 Difference]: Start difference. First operand 8044 states and 38736 transitions. Second operand 4 states. [2020-10-15 17:52:50,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:50,889 INFO L93 Difference]: Finished difference Result 6512 states and 30951 transitions. [2020-10-15 17:52:50,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:50,889 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-15 17:52:50,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:50,907 INFO L225 Difference]: With dead ends: 6512 [2020-10-15 17:52:50,908 INFO L226 Difference]: Without dead ends: 6512 [2020-10-15 17:52:50,908 INFO L677 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 [2020-10-15 17:52:51,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6512 states. [2020-10-15 17:52:51,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6512 to 4980. [2020-10-15 17:52:51,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4980 states. [2020-10-15 17:52:51,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4980 states to 4980 states and 23166 transitions. [2020-10-15 17:52:51,198 INFO L78 Accepts]: Start accepts. Automaton has 4980 states and 23166 transitions. Word has length 18 [2020-10-15 17:52:51,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:51,198 INFO L481 AbstractCegarLoop]: Abstraction has 4980 states and 23166 transitions. [2020-10-15 17:52:51,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:52:51,199 INFO L276 IsEmpty]: Start isEmpty. Operand 4980 states and 23166 transitions. [2020-10-15 17:52:51,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-15 17:52:51,205 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:51,205 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:51,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-15 17:52:51,207 INFO L429 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]=== [2020-10-15 17:52:51,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:51,207 INFO L82 PathProgramCache]: Analyzing trace with hash 2026385382, now seen corresponding path program 1 times [2020-10-15 17:52:51,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:51,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834189557] [2020-10-15 17:52:51,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:51,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:51,224 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-15 17:52:51,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834189557] [2020-10-15 17:52:51,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:51,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:52:51,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288205496] [2020-10-15 17:52:51,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:52:51,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:51,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:52:51,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:51,225 INFO L87 Difference]: Start difference. First operand 4980 states and 23166 transitions. Second operand 3 states. [2020-10-15 17:52:51,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:51,307 INFO L93 Difference]: Finished difference Result 6912 states and 31999 transitions. [2020-10-15 17:52:51,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:51,308 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-10-15 17:52:51,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:51,334 INFO L225 Difference]: With dead ends: 6912 [2020-10-15 17:52:51,334 INFO L226 Difference]: Without dead ends: 6912 [2020-10-15 17:52:51,334 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:52:51,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6912 states. [2020-10-15 17:52:51,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6912 to 5944. [2020-10-15 17:52:51,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5944 states. [2020-10-15 17:52:51,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5944 states to 5944 states and 28053 transitions. [2020-10-15 17:52:51,583 INFO L78 Accepts]: Start accepts. Automaton has 5944 states and 28053 transitions. Word has length 20 [2020-10-15 17:52:51,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:51,583 INFO L481 AbstractCegarLoop]: Abstraction has 5944 states and 28053 transitions. [2020-10-15 17:52:51,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:52:51,584 INFO L276 IsEmpty]: Start isEmpty. Operand 5944 states and 28053 transitions. [2020-10-15 17:52:51,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 17:52:51,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:51,587 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:51,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-15 17:52:51,588 INFO L429 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]=== [2020-10-15 17:52:51,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:51,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1606559931, now seen corresponding path program 1 times [2020-10-15 17:52:51,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:51,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372261382] [2020-10-15 17:52:51,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:52:51,612 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-15 17:52:51,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372261382] [2020-10-15 17:52:51,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:52:51,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:52:51,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801528130] [2020-10-15 17:52:51,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:52:51,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:52:51,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:52:51,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:52:51,613 INFO L87 Difference]: Start difference. First operand 5944 states and 28053 transitions. Second operand 4 states. [2020-10-15 17:52:51,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:52:51,666 INFO L93 Difference]: Finished difference Result 4976 states and 23139 transitions. [2020-10-15 17:52:51,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:52:51,667 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-10-15 17:52:51,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:52:51,678 INFO L225 Difference]: With dead ends: 4976 [2020-10-15 17:52:51,678 INFO L226 Difference]: Without dead ends: 4976 [2020-10-15 17:52:51,679 INFO L677 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 [2020-10-15 17:52:51,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4976 states. [2020-10-15 17:52:51,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4976 to 4008. [2020-10-15 17:52:51,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4008 states. [2020-10-15 17:52:51,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4008 states to 4008 states and 18225 transitions. [2020-10-15 17:52:51,944 INFO L78 Accepts]: Start accepts. Automaton has 4008 states and 18225 transitions. Word has length 21 [2020-10-15 17:52:51,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:52:51,945 INFO L481 AbstractCegarLoop]: Abstraction has 4008 states and 18225 transitions. [2020-10-15 17:52:51,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:52:51,945 INFO L276 IsEmpty]: Start isEmpty. Operand 4008 states and 18225 transitions. [2020-10-15 17:52:51,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 17:52:51,948 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:52:51,948 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:52:51,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-15 17:52:51,948 INFO L429 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]=== [2020-10-15 17:52:51,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:52:51,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1606739912, now seen corresponding path program 1 times [2020-10-15 17:52:51,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:52:51,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408285358] [2020-10-15 17:52:51,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:52:51,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 17:52:51,956 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 17:52:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 17:52:51,961 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 17:52:51,966 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 17:52:51,966 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 17:52:51,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-15 17:52:51,967 WARN L371 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 17:52:51,967 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2020-10-15 17:52:51,976 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,976 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,976 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,976 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,976 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,976 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,977 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,977 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,977 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,977 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,977 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,977 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,977 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,978 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,978 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,978 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,978 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,978 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,978 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,978 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,979 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,979 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,979 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,979 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,979 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,979 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,979 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,980 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,980 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,980 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,980 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,980 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,980 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,980 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,981 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,981 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,981 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,981 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,981 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,981 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,981 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,981 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,982 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,982 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,982 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,982 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,982 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,982 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,982 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,982 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,983 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,983 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,983 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,983 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,983 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,983 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,983 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,984 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,984 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,984 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,984 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,984 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,984 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,984 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,984 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,985 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,985 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,985 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,985 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,985 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,985 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,985 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,985 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,986 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,986 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,986 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,986 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,986 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,986 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,986 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,986 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,987 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,987 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,987 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,987 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,987 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,987 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,987 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,988 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,988 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,988 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,988 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,988 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,988 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,988 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,988 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,989 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,989 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,989 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,989 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,989 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,990 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,990 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,990 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,996 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,996 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,997 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,997 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,997 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:51,997 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,002 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,003 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,003 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,003 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,003 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,003 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,006 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,007 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,007 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,007 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,007 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,007 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,010 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,011 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,011 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,011 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,011 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,011 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,012 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,013 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,013 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,013 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,013 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,013 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,014 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,015 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,015 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,015 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:52:52,017 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-10-15 17:52:52,017 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 17:52:52,017 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 17:52:52,017 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 17:52:52,017 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 17:52:52,017 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 17:52:52,017 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 17:52:52,018 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 17:52:52,018 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 17:52:52,019 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 17:52:52,019 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 111 transitions, 299 flow [2020-10-15 17:52:52,019 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 111 transitions, 299 flow [2020-10-15 17:52:52,020 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 118 places, 111 transitions, 299 flow [2020-10-15 17:52:52,042 INFO L129 PetriNetUnfolder]: 15/173 cut-off events. [2020-10-15 17:52:52,042 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2020-10-15 17:52:52,044 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. [2020-10-15 17:52:52,053 INFO L117 LiptonReduction]: Number of co-enabled transitions 8232 [2020-10-15 17:52:53,360 INFO L132 LiptonReduction]: Checked pairs total: 15392 [2020-10-15 17:52:53,360 INFO L134 LiptonReduction]: Total number of compositions: 102 [2020-10-15 17:52:53,361 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 34 transitions, 145 flow [2020-10-15 17:53:32,137 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 103764 states. [2020-10-15 17:53:32,137 INFO L276 IsEmpty]: Start isEmpty. Operand 103764 states. [2020-10-15 17:53:32,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-15 17:53:32,137 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:53:32,137 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-15 17:53:32,137 INFO L429 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]=== [2020-10-15 17:53:32,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:53:32,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1079248743, now seen corresponding path program 1 times [2020-10-15 17:53:32,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:53:32,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865292097] [2020-10-15 17:53:32,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:53:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:53:32,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 17:53:32,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865292097] [2020-10-15 17:53:32,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:53:32,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:53:32,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890418272] [2020-10-15 17:53:32,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:53:32,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:53:32,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:53:32,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:53:32,152 INFO L87 Difference]: Start difference. First operand 103764 states. Second operand 3 states. [2020-10-15 17:53:32,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:53:32,953 INFO L93 Difference]: Finished difference Result 122811 states and 708293 transitions. [2020-10-15 17:53:32,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:53:32,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-15 17:53:32,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:53:33,412 INFO L225 Difference]: With dead ends: 122811 [2020-10-15 17:53:33,412 INFO L226 Difference]: Without dead ends: 122811 [2020-10-15 17:53:33,412 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:53:47,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122811 states. [2020-10-15 17:53:48,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122811 to 102354. [2020-10-15 17:53:48,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102354 states. [2020-10-15 17:53:49,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102354 states to 102354 states and 603935 transitions. [2020-10-15 17:53:49,371 INFO L78 Accepts]: Start accepts. Automaton has 102354 states and 603935 transitions. Word has length 5 [2020-10-15 17:53:49,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:53:49,371 INFO L481 AbstractCegarLoop]: Abstraction has 102354 states and 603935 transitions. [2020-10-15 17:53:49,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:53:49,371 INFO L276 IsEmpty]: Start isEmpty. Operand 102354 states and 603935 transitions. [2020-10-15 17:53:49,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 17:53:49,371 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:53:49,371 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-10-15 17:53:49,372 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-15 17:53:49,372 INFO L429 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]=== [2020-10-15 17:53:49,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:53:49,372 INFO L82 PathProgramCache]: Analyzing trace with hash -423468189, now seen corresponding path program 1 times [2020-10-15 17:53:49,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:53:49,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373732479] [2020-10-15 17:53:49,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:53:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:53:49,382 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 17:53:49,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373732479] [2020-10-15 17:53:49,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:53:49,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:53:49,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312351498] [2020-10-15 17:53:49,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:53:49,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:53:49,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:53:49,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:53:49,384 INFO L87 Difference]: Start difference. First operand 102354 states and 603935 transitions. Second operand 3 states. [2020-10-15 17:53:55,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:53:55,973 INFO L93 Difference]: Finished difference Result 148254 states and 859795 transitions. [2020-10-15 17:53:55,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:53:55,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 17:53:55,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:53:56,511 INFO L225 Difference]: With dead ends: 148254 [2020-10-15 17:53:56,511 INFO L226 Difference]: Without dead ends: 148254 [2020-10-15 17:53:56,511 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:54:07,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148254 states. [2020-10-15 17:54:09,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148254 to 122716. [2020-10-15 17:54:09,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122716 states. [2020-10-15 17:54:11,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122716 states to 122716 states and 728220 transitions. [2020-10-15 17:54:11,353 INFO L78 Accepts]: Start accepts. Automaton has 122716 states and 728220 transitions. Word has length 8 [2020-10-15 17:54:11,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:54:11,354 INFO L481 AbstractCegarLoop]: Abstraction has 122716 states and 728220 transitions. [2020-10-15 17:54:11,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:54:11,354 INFO L276 IsEmpty]: Start isEmpty. Operand 122716 states and 728220 transitions. [2020-10-15 17:54:11,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 17:54:11,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:54:11,354 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:54:11,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-15 17:54:11,354 INFO L429 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]=== [2020-10-15 17:54:11,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:54:11,355 INFO L82 PathProgramCache]: Analyzing trace with hash -242594376, now seen corresponding path program 1 times [2020-10-15 17:54:11,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:54:11,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616314931] [2020-10-15 17:54:11,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:54:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:54:11,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 17:54:11,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616314931] [2020-10-15 17:54:11,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:54:11,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:54:11,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189228528] [2020-10-15 17:54:11,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:54:11,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:54:11,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:54:11,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:54:11,392 INFO L87 Difference]: Start difference. First operand 122716 states and 728220 transitions. Second operand 4 states. [2020-10-15 17:54:12,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:54:12,048 INFO L93 Difference]: Finished difference Result 97178 states and 571107 transitions. [2020-10-15 17:54:12,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:54:12,048 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 17:54:12,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:54:12,385 INFO L225 Difference]: With dead ends: 97178 [2020-10-15 17:54:12,386 INFO L226 Difference]: Without dead ends: 97178 [2020-10-15 17:54:12,386 INFO L677 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 [2020-10-15 17:54:24,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97178 states. [2020-10-15 17:54:26,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97178 to 76759. [2020-10-15 17:54:26,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76759 states. [2020-10-15 17:54:26,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76759 states to 76759 states and 446504 transitions. [2020-10-15 17:54:26,632 INFO L78 Accepts]: Start accepts. Automaton has 76759 states and 446504 transitions. Word has length 9 [2020-10-15 17:54:26,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:54:26,632 INFO L481 AbstractCegarLoop]: Abstraction has 76759 states and 446504 transitions. [2020-10-15 17:54:26,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:54:26,632 INFO L276 IsEmpty]: Start isEmpty. Operand 76759 states and 446504 transitions. [2020-10-15 17:54:26,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 17:54:26,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:54:26,633 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:54:26,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-15 17:54:26,633 INFO L429 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]=== [2020-10-15 17:54:26,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:54:26,633 INFO L82 PathProgramCache]: Analyzing trace with hash -242609250, now seen corresponding path program 1 times [2020-10-15 17:54:26,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:54:26,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430260209] [2020-10-15 17:54:26,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:54:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:54:26,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 17:54:26,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430260209] [2020-10-15 17:54:26,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:54:26,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:54:26,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590682410] [2020-10-15 17:54:26,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:54:26,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:54:26,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:54:26,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:54:26,659 INFO L87 Difference]: Start difference. First operand 76759 states and 446504 transitions. Second operand 4 states. [2020-10-15 17:54:27,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:54:27,096 INFO L93 Difference]: Finished difference Result 61421 states and 354199 transitions. [2020-10-15 17:54:27,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:54:27,096 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 17:54:27,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:54:27,308 INFO L225 Difference]: With dead ends: 61421 [2020-10-15 17:54:27,308 INFO L226 Difference]: Without dead ends: 61421 [2020-10-15 17:54:27,308 INFO L677 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 [2020-10-15 17:54:31,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61421 states. [2020-10-15 17:54:32,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61421 to 46083. [2020-10-15 17:54:32,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46083 states. [2020-10-15 17:54:32,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46083 states to 46083 states and 261894 transitions. [2020-10-15 17:54:32,613 INFO L78 Accepts]: Start accepts. Automaton has 46083 states and 261894 transitions. Word has length 9 [2020-10-15 17:54:32,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:54:32,613 INFO L481 AbstractCegarLoop]: Abstraction has 46083 states and 261894 transitions. [2020-10-15 17:54:32,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:54:32,614 INFO L276 IsEmpty]: Start isEmpty. Operand 46083 states and 261894 transitions. [2020-10-15 17:54:32,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 17:54:32,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:54:32,614 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2020-10-15 17:54:32,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-15 17:54:32,614 INFO L429 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]=== [2020-10-15 17:54:32,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:54:32,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1404864702, now seen corresponding path program 1 times [2020-10-15 17:54:32,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:54:32,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871921509] [2020-10-15 17:54:32,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:54:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:54:32,634 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 17:54:32,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871921509] [2020-10-15 17:54:32,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:54:32,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:54:32,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041259277] [2020-10-15 17:54:32,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:54:32,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:54:32,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:54:32,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:54:32,636 INFO L87 Difference]: Start difference. First operand 46083 states and 261894 transitions. Second operand 3 states. [2020-10-15 17:54:33,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:54:33,119 INFO L93 Difference]: Finished difference Result 69057 states and 386770 transitions. [2020-10-15 17:54:33,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:54:33,120 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-15 17:54:33,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:54:33,349 INFO L225 Difference]: With dead ends: 69057 [2020-10-15 17:54:33,349 INFO L226 Difference]: Without dead ends: 69057 [2020-10-15 17:54:33,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:54:40,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69057 states. [2020-10-15 17:54:41,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69057 to 57562. [2020-10-15 17:54:41,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57562 states. [2020-10-15 17:54:41,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57562 states to 57562 states and 330031 transitions. [2020-10-15 17:54:41,711 INFO L78 Accepts]: Start accepts. Automaton has 57562 states and 330031 transitions. Word has length 11 [2020-10-15 17:54:41,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:54:41,712 INFO L481 AbstractCegarLoop]: Abstraction has 57562 states and 330031 transitions. [2020-10-15 17:54:41,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:54:41,712 INFO L276 IsEmpty]: Start isEmpty. Operand 57562 states and 330031 transitions. [2020-10-15 17:54:41,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 17:54:41,712 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:54:41,712 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:54:41,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-10-15 17:54:41,713 INFO L429 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]=== [2020-10-15 17:54:41,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:54:41,713 INFO L82 PathProgramCache]: Analyzing trace with hash -601130141, now seen corresponding path program 1 times [2020-10-15 17:54:41,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:54:41,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100833768] [2020-10-15 17:54:41,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:54:41,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:54:41,732 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 17:54:41,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100833768] [2020-10-15 17:54:41,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:54:41,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:54:41,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288521143] [2020-10-15 17:54:41,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:54:41,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:54:41,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:54:41,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:54:41,734 INFO L87 Difference]: Start difference. First operand 57562 states and 330031 transitions. Second operand 4 states. [2020-10-15 17:54:42,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:54:42,035 INFO L93 Difference]: Finished difference Result 46067 states and 261797 transitions. [2020-10-15 17:54:42,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:54:42,036 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 17:54:42,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:54:42,185 INFO L225 Difference]: With dead ends: 46067 [2020-10-15 17:54:42,185 INFO L226 Difference]: Without dead ends: 46067 [2020-10-15 17:54:42,185 INFO L677 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 [2020-10-15 17:54:44,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46067 states. [2020-10-15 17:54:45,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46067 to 34572. [2020-10-15 17:54:45,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34572 states. [2020-10-15 17:54:45,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34572 states to 34572 states and 193563 transitions. [2020-10-15 17:54:45,570 INFO L78 Accepts]: Start accepts. Automaton has 34572 states and 193563 transitions. Word has length 12 [2020-10-15 17:54:45,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:54:45,571 INFO L481 AbstractCegarLoop]: Abstraction has 34572 states and 193563 transitions. [2020-10-15 17:54:45,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:54:45,571 INFO L276 IsEmpty]: Start isEmpty. Operand 34572 states and 193563 transitions. [2020-10-15 17:54:45,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 17:54:45,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:54:45,571 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:54:45,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-10-15 17:54:45,572 INFO L429 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]=== [2020-10-15 17:54:45,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:54:45,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1950756351, now seen corresponding path program 1 times [2020-10-15 17:54:45,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:54:45,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486873337] [2020-10-15 17:54:45,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:54:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:54:45,590 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 17:54:45,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486873337] [2020-10-15 17:54:45,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:54:45,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:54:45,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592967005] [2020-10-15 17:54:45,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:54:45,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:54:45,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:54:45,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:54:45,592 INFO L87 Difference]: Start difference. First operand 34572 states and 193563 transitions. Second operand 3 states. [2020-10-15 17:54:45,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:54:45,906 INFO L93 Difference]: Finished difference Result 51759 states and 285634 transitions. [2020-10-15 17:54:45,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:54:45,906 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-15 17:54:45,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:54:46,075 INFO L225 Difference]: With dead ends: 51759 [2020-10-15 17:54:46,075 INFO L226 Difference]: Without dead ends: 51759 [2020-10-15 17:54:46,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:54:48,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51759 states. [2020-10-15 17:54:48,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51759 to 43159. [2020-10-15 17:54:48,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43159 states. [2020-10-15 17:54:48,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43159 states to 43159 states and 243856 transitions. [2020-10-15 17:54:48,994 INFO L78 Accepts]: Start accepts. Automaton has 43159 states and 243856 transitions. Word has length 14 [2020-10-15 17:54:48,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:54:48,995 INFO L481 AbstractCegarLoop]: Abstraction has 43159 states and 243856 transitions. [2020-10-15 17:54:48,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:54:48,995 INFO L276 IsEmpty]: Start isEmpty. Operand 43159 states and 243856 transitions. [2020-10-15 17:54:48,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 17:54:48,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:54:48,995 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:54:48,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2020-10-15 17:54:48,996 INFO L429 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]=== [2020-10-15 17:54:48,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:54:48,996 INFO L82 PathProgramCache]: Analyzing trace with hash 343906870, now seen corresponding path program 1 times [2020-10-15 17:54:48,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:54:48,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261011446] [2020-10-15 17:54:48,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:54:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:54:49,012 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 17:54:49,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261011446] [2020-10-15 17:54:49,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:54:49,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:54:49,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739680597] [2020-10-15 17:54:49,013 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:54:49,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:54:49,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:54:49,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:54:49,014 INFO L87 Difference]: Start difference. First operand 43159 states and 243856 transitions. Second operand 4 states. [2020-10-15 17:54:50,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:54:50,143 INFO L93 Difference]: Finished difference Result 34559 states and 193478 transitions. [2020-10-15 17:54:50,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:54:50,144 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-15 17:54:50,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:54:50,258 INFO L225 Difference]: With dead ends: 34559 [2020-10-15 17:54:50,259 INFO L226 Difference]: Without dead ends: 34559 [2020-10-15 17:54:50,259 INFO L677 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 [2020-10-15 17:54:51,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34559 states. [2020-10-15 17:54:51,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34559 to 25959. [2020-10-15 17:54:51,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25959 states. [2020-10-15 17:54:51,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25959 states to 25959 states and 143100 transitions. [2020-10-15 17:54:51,891 INFO L78 Accepts]: Start accepts. Automaton has 25959 states and 143100 transitions. Word has length 15 [2020-10-15 17:54:51,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:54:51,891 INFO L481 AbstractCegarLoop]: Abstraction has 25959 states and 143100 transitions. [2020-10-15 17:54:51,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:54:51,891 INFO L276 IsEmpty]: Start isEmpty. Operand 25959 states and 143100 transitions. [2020-10-15 17:54:51,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 17:54:51,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:54:51,892 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:54:51,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-10-15 17:54:51,893 INFO L429 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]=== [2020-10-15 17:54:51,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:54:51,893 INFO L82 PathProgramCache]: Analyzing trace with hash -408592942, now seen corresponding path program 1 times [2020-10-15 17:54:51,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:54:51,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745695414] [2020-10-15 17:54:51,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:54:51,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:54:51,911 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-15 17:54:51,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745695414] [2020-10-15 17:54:51,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:54:51,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:54:51,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476810791] [2020-10-15 17:54:51,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:54:51,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:54:51,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:54:51,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:54:51,913 INFO L87 Difference]: Start difference. First operand 25959 states and 143100 transitions. Second operand 3 states. [2020-10-15 17:54:52,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:54:52,185 INFO L93 Difference]: Finished difference Result 38727 states and 210643 transitions. [2020-10-15 17:54:52,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:54:52,185 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-15 17:54:52,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:54:52,304 INFO L225 Difference]: With dead ends: 38727 [2020-10-15 17:54:52,304 INFO L226 Difference]: Without dead ends: 38727 [2020-10-15 17:54:52,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:54:53,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38727 states. [2020-10-15 17:54:53,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38727 to 32338. [2020-10-15 17:54:53,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32338 states. [2020-10-15 17:54:54,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32338 states to 32338 states and 180031 transitions. [2020-10-15 17:54:54,088 INFO L78 Accepts]: Start accepts. Automaton has 32338 states and 180031 transitions. Word has length 17 [2020-10-15 17:54:54,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:54:54,089 INFO L481 AbstractCegarLoop]: Abstraction has 32338 states and 180031 transitions. [2020-10-15 17:54:54,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:54:54,089 INFO L276 IsEmpty]: Start isEmpty. Operand 32338 states and 180031 transitions. [2020-10-15 17:54:54,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 17:54:54,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:54:54,090 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:54:54,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-10-15 17:54:54,091 INFO L429 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]=== [2020-10-15 17:54:54,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:54:54,091 INFO L82 PathProgramCache]: Analyzing trace with hash 218524327, now seen corresponding path program 1 times [2020-10-15 17:54:54,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:54:54,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715310623] [2020-10-15 17:54:54,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:54:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:54:54,107 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-15 17:54:54,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715310623] [2020-10-15 17:54:54,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:54:54,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:54:54,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20846943] [2020-10-15 17:54:54,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:54:54,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:54:54,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:54:54,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:54:54,109 INFO L87 Difference]: Start difference. First operand 32338 states and 180031 transitions. Second operand 4 states. [2020-10-15 17:54:54,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:54:54,330 INFO L93 Difference]: Finished difference Result 25949 states and 143030 transitions. [2020-10-15 17:54:54,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:54:54,330 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-15 17:54:54,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:54:54,407 INFO L225 Difference]: With dead ends: 25949 [2020-10-15 17:54:54,408 INFO L226 Difference]: Without dead ends: 25949 [2020-10-15 17:54:54,408 INFO L677 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 [2020-10-15 17:54:55,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25949 states. [2020-10-15 17:54:55,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25949 to 19560. [2020-10-15 17:54:55,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19560 states. [2020-10-15 17:54:55,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19560 states to 19560 states and 106029 transitions. [2020-10-15 17:54:55,511 INFO L78 Accepts]: Start accepts. Automaton has 19560 states and 106029 transitions. Word has length 18 [2020-10-15 17:54:55,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:54:55,511 INFO L481 AbstractCegarLoop]: Abstraction has 19560 states and 106029 transitions. [2020-10-15 17:54:55,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:54:55,511 INFO L276 IsEmpty]: Start isEmpty. Operand 19560 states and 106029 transitions. [2020-10-15 17:54:55,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-15 17:54:55,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:54:55,514 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:54:55,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2020-10-15 17:54:55,514 INFO L429 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]=== [2020-10-15 17:54:55,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:54:55,514 INFO L82 PathProgramCache]: Analyzing trace with hash -640482004, now seen corresponding path program 1 times [2020-10-15 17:54:55,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:54:55,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784503531] [2020-10-15 17:54:55,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:54:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:54:55,537 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-15 17:54:55,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784503531] [2020-10-15 17:54:55,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:54:55,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:54:55,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411578679] [2020-10-15 17:54:55,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:54:55,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:54:55,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:54:55,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:54:55,539 INFO L87 Difference]: Start difference. First operand 19560 states and 106029 transitions. Second operand 3 states. [2020-10-15 17:54:55,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:54:55,721 INFO L93 Difference]: Finished difference Result 28773 states and 154399 transitions. [2020-10-15 17:54:55,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:54:55,721 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-10-15 17:54:55,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:54:55,807 INFO L225 Difference]: With dead ends: 28773 [2020-10-15 17:54:55,807 INFO L226 Difference]: Without dead ends: 28773 [2020-10-15 17:54:55,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:54:56,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28773 states. [2020-10-15 17:54:57,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28773 to 24163. [2020-10-15 17:54:57,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24163 states. [2020-10-15 17:54:57,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24163 states to 24163 states and 132493 transitions. [2020-10-15 17:54:57,282 INFO L78 Accepts]: Start accepts. Automaton has 24163 states and 132493 transitions. Word has length 20 [2020-10-15 17:54:57,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:54:57,282 INFO L481 AbstractCegarLoop]: Abstraction has 24163 states and 132493 transitions. [2020-10-15 17:54:57,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:54:57,282 INFO L276 IsEmpty]: Start isEmpty. Operand 24163 states and 132493 transitions. [2020-10-15 17:54:57,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 17:54:57,285 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:54:57,285 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:54:57,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2020-10-15 17:54:57,285 INFO L429 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]=== [2020-10-15 17:54:57,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:54:57,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1619896945, now seen corresponding path program 1 times [2020-10-15 17:54:57,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:54:57,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923516935] [2020-10-15 17:54:57,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:54:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:54:57,303 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-15 17:54:57,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923516935] [2020-10-15 17:54:57,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:54:57,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 17:54:57,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328450911] [2020-10-15 17:54:57,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 17:54:57,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:54:57,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 17:54:57,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 17:54:57,305 INFO L87 Difference]: Start difference. First operand 24163 states and 132493 transitions. Second operand 4 states. [2020-10-15 17:54:57,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:54:57,490 INFO L93 Difference]: Finished difference Result 19553 states and 105977 transitions. [2020-10-15 17:54:57,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:54:57,491 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-10-15 17:54:57,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:54:57,544 INFO L225 Difference]: With dead ends: 19553 [2020-10-15 17:54:57,545 INFO L226 Difference]: Without dead ends: 19553 [2020-10-15 17:54:57,545 INFO L677 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 [2020-10-15 17:54:58,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19553 states. [2020-10-15 17:54:58,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19553 to 14943. [2020-10-15 17:54:58,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14943 states. [2020-10-15 17:54:58,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14943 states to 14943 states and 79461 transitions. [2020-10-15 17:54:58,362 INFO L78 Accepts]: Start accepts. Automaton has 14943 states and 79461 transitions. Word has length 21 [2020-10-15 17:54:58,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:54:58,362 INFO L481 AbstractCegarLoop]: Abstraction has 14943 states and 79461 transitions. [2020-10-15 17:54:58,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 17:54:58,362 INFO L276 IsEmpty]: Start isEmpty. Operand 14943 states and 79461 transitions. [2020-10-15 17:54:58,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 17:54:58,366 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:54:58,366 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:54:58,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2020-10-15 17:54:58,366 INFO L429 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]=== [2020-10-15 17:54:58,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:54:58,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1741862694, now seen corresponding path program 1 times [2020-10-15 17:54:58,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:54:58,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934859490] [2020-10-15 17:54:58,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:54:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 17:54:58,386 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-10-15 17:54:58,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934859490] [2020-10-15 17:54:58,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 17:54:58,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 17:54:58,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777332971] [2020-10-15 17:54:58,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 17:54:58,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 17:54:58,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 17:54:58,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:54:58,388 INFO L87 Difference]: Start difference. First operand 14943 states and 79461 transitions. Second operand 3 states. [2020-10-15 17:54:58,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 17:54:58,610 INFO L93 Difference]: Finished difference Result 20763 states and 109990 transitions. [2020-10-15 17:54:58,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 17:54:58,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-10-15 17:54:58,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 17:54:58,701 INFO L225 Difference]: With dead ends: 20763 [2020-10-15 17:54:58,702 INFO L226 Difference]: Without dead ends: 20763 [2020-10-15 17:54:58,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 17:54:59,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20763 states. [2020-10-15 17:54:59,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20763 to 17851. [2020-10-15 17:54:59,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17851 states. [2020-10-15 17:54:59,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17851 states to 17851 states and 96166 transitions. [2020-10-15 17:54:59,643 INFO L78 Accepts]: Start accepts. Automaton has 17851 states and 96166 transitions. Word has length 23 [2020-10-15 17:54:59,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 17:54:59,644 INFO L481 AbstractCegarLoop]: Abstraction has 17851 states and 96166 transitions. [2020-10-15 17:54:59,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 17:54:59,644 INFO L276 IsEmpty]: Start isEmpty. Operand 17851 states and 96166 transitions. [2020-10-15 17:54:59,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-15 17:54:59,650 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 17:54:59,650 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 17:54:59,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2020-10-15 17:54:59,651 INFO L429 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]=== [2020-10-15 17:54:59,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 17:54:59,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1837019004, now seen corresponding path program 1 times [2020-10-15 17:54:59,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 17:54:59,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178721561] [2020-10-15 17:54:59,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 17:54:59,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 17:54:59,658 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 17:54:59,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 17:54:59,663 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 17:54:59,669 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 17:54:59,669 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 17:54:59,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2020-10-15 17:54:59,670 WARN L371 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 17:54:59,670 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2020-10-15 17:54:59,680 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,680 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,680 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,680 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,680 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,681 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,681 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,681 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,681 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,681 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,681 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,681 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,682 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,682 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,682 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,682 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,682 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,682 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,683 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,683 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,683 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,683 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,683 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,683 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,683 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,684 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,684 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,684 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,684 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,684 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,684 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,684 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,685 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,685 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,685 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,685 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,685 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,685 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,685 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,686 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,686 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,686 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,686 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,686 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,686 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,686 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,687 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,687 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,687 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,687 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,687 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,687 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,687 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,688 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,688 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,688 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,688 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,688 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,688 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,689 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,689 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,689 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,689 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,689 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,689 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,689 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,690 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,690 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,690 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,690 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,690 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,690 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,690 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,691 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,691 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,691 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,691 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,691 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,691 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,691 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,691 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,692 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,692 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,692 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,692 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,692 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,692 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,692 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,693 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,693 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,693 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,693 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,693 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,693 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,693 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,693 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,694 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,694 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,694 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,694 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,694 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,694 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,694 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,694 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,695 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,695 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,695 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,695 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,695 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,696 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,696 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,696 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,696 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,697 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,697 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,697 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,697 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,697 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,699 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,699 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,699 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,699 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,699 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,699 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,700 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,701 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,701 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,701 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,701 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,701 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,702 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,702 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,703 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,703 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,703 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,703 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,704 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,704 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,705 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,705 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,705 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,705 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,706 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,706 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,706 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,707 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,707 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,707 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,708 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,708 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,708 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,708 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,708 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,709 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,710 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,710 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,710 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,710 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,710 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,710 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 17:54:59,711 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-10-15 17:54:59,712 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 17:54:59,712 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 17:54:59,712 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 17:54:59,712 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 17:54:59,712 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 17:54:59,712 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 17:54:59,712 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 17:54:59,712 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 17:54:59,714 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 17:54:59,714 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 124 transitions, 344 flow [2020-10-15 17:54:59,714 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 124 transitions, 344 flow [2020-10-15 17:54:59,714 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 132 places, 124 transitions, 344 flow [2020-10-15 17:54:59,737 INFO L129 PetriNetUnfolder]: 17/195 cut-off events. [2020-10-15 17:54:59,737 INFO L130 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2020-10-15 17:54:59,740 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. [2020-10-15 17:54:59,751 INFO L117 LiptonReduction]: Number of co-enabled transitions 10656 [2020-10-15 17:55:01,273 INFO L132 LiptonReduction]: Checked pairs total: 18266 [2020-10-15 17:55:01,273 INFO L134 LiptonReduction]: Total number of compositions: 113 [2020-10-15 17:55:01,274 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 38 transitions, 172 flow [2020-10-15 18:01:53,989 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 415060 states. [2020-10-15 18:01:53,990 INFO L276 IsEmpty]: Start isEmpty. Operand 415060 states. [2020-10-15 18:01:53,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-15 18:01:53,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:01:53,990 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-15 18:01:53,990 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:01:53,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:01:53,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1317783109, now seen corresponding path program 1 times [2020-10-15 18:01:53,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:01:53,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789367952] [2020-10-15 18:01:53,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:01:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:01:54,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:01:54,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789367952] [2020-10-15 18:01:54,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:01:54,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:01:54,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146660335] [2020-10-15 18:01:54,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:01:54,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:01:54,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:01:54,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:01:54,005 INFO L87 Difference]: Start difference. First operand 415060 states. Second operand 3 states. [2020-10-15 18:02:00,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:02:00,029 INFO L93 Difference]: Finished difference Result 491442 states and 3202676 transitions. [2020-10-15 18:02:00,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:02:00,030 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-15 18:02:00,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:02:02,381 INFO L225 Difference]: With dead ends: 491442 [2020-10-15 18:02:02,381 INFO L226 Difference]: Without dead ends: 491442 [2020-10-15 18:02:02,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:04:59,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491442 states. Received shutdown request... [2020-10-15 18:05:22,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491442 to 409548. [2020-10-15 18:05:22,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409548 states. [2020-10-15 18:05:22,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2020-10-15 18:05:22,883 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-15 18:05:22,886 WARN L235 ceAbstractionStarter]: Timeout [2020-10-15 18:05:22,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:05:22 BasicIcfg [2020-10-15 18:05:22,887 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:05:22,888 INFO L168 Benchmark]: Toolchain (without parser) took 782669.49 ms. Allocated memory was 251.1 MB in the beginning and 9.6 GB in the end (delta: 9.3 GB). Free memory was 204.0 MB in the beginning and 4.6 GB in the end (delta: -4.4 GB). Peak memory consumption was 9.6 GB. Max. memory is 14.2 GB. [2020-10-15 18:05:22,889 INFO L168 Benchmark]: CDTParser took 1.38 ms. Allocated memory is still 251.1 MB. Free memory is still 225.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:05:22,889 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.10 ms. Allocated memory was 251.1 MB in the beginning and 313.0 MB in the end (delta: 61.9 MB). Free memory was 204.0 MB in the beginning and 270.9 MB in the end (delta: -66.9 MB). Peak memory consumption was 28.7 MB. Max. memory is 14.2 GB. [2020-10-15 18:05:22,889 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.53 ms. Allocated memory is still 313.0 MB. Free memory was 270.9 MB in the beginning and 268.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:05:22,890 INFO L168 Benchmark]: Boogie Preprocessor took 25.73 ms. Allocated memory is still 313.0 MB. Free memory was 268.4 MB in the beginning and 265.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:05:22,890 INFO L168 Benchmark]: RCFGBuilder took 289.56 ms. Allocated memory is still 313.0 MB. Free memory was 265.9 MB in the beginning and 249.1 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 14.2 GB. [2020-10-15 18:05:22,891 INFO L168 Benchmark]: TraceAbstraction took 781658.11 ms. Allocated memory was 313.0 MB in the beginning and 9.6 GB in the end (delta: 9.3 GB). Free memory was 249.1 MB in the beginning and 4.6 GB in the end (delta: -4.3 GB). Peak memory consumption was 9.6 GB. Max. memory is 14.2 GB. [2020-10-15 18:05:22,892 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.38 ms. Allocated memory is still 251.1 MB. Free memory is still 225.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 646.10 ms. Allocated memory was 251.1 MB in the beginning and 313.0 MB in the end (delta: 61.9 MB). Free memory was 204.0 MB in the beginning and 270.9 MB in the end (delta: -66.9 MB). Peak memory consumption was 28.7 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 44.53 ms. Allocated memory is still 313.0 MB. Free memory was 270.9 MB in the beginning and 268.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 25.73 ms. Allocated memory is still 313.0 MB. Free memory was 268.4 MB in the beginning and 265.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 289.56 ms. Allocated memory is still 313.0 MB. Free memory was 265.9 MB in the beginning and 249.1 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 781658.11 ms. Allocated memory was 313.0 MB in the beginning and 9.6 GB in the end (delta: 9.3 GB). Free memory was 249.1 MB in the beginning and 4.6 GB in the end (delta: -4.3 GB). Peak memory consumption was 9.6 GB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 155 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 2 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.6s, 34 PlacesBefore, 11 PlacesAfterwards, 33 TransitionsBefore, 8 TransitionsAfterwards, 240 CoEnabledTransitionPairs, 4 FixpointIterations, 9 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 32 TotalNumberOfCompositions, 209 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 589 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 22 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 34 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.6s, 48 PlacesBefore, 18 PlacesAfterwards, 46 TransitionsBefore, 13 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 4 FixpointIterations, 9 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 3 ChoiceCompositions, 40 TotalNumberOfCompositions, 1268 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1190 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 51 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.7s, 62 PlacesBefore, 24 PlacesAfterwards, 59 TransitionsBefore, 17 TransitionsAfterwards, 1656 CoEnabledTransitionPairs, 4 FixpointIterations, 9 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 4 ChoiceCompositions, 52 TotalNumberOfCompositions, 2526 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1922 VarBasedMoverChecksPositive, 63 VarBasedMoverChecksNegative, 20 SemBasedMoverChecksPositive, 43 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 91 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.8s, 76 PlacesBefore, 30 PlacesAfterwards, 72 TransitionsBefore, 23 TransitionsAfterwards, 2832 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 3 ChoiceCompositions, 66 TotalNumberOfCompositions, 5299 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3042 VarBasedMoverChecksPositive, 104 VarBasedMoverChecksNegative, 52 SemBasedMoverChecksPositive, 52 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 118 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.0s, 90 PlacesBefore, 36 PlacesAfterwards, 85 TransitionsBefore, 28 TransitionsAfterwards, 4320 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 3 ChoiceCompositions, 79 TotalNumberOfCompositions, 8003 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 4348 VarBasedMoverChecksPositive, 152 VarBasedMoverChecksNegative, 79 SemBasedMoverChecksPositive, 73 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 251 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.1s, 104 PlacesBefore, 42 PlacesAfterwards, 98 TransitionsBefore, 33 TransitionsAfterwards, 6120 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 59 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 21 ConcurrentYvCompositions, 3 ChoiceCompositions, 92 TotalNumberOfCompositions, 12557 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 5643 VarBasedMoverChecksPositive, 110 VarBasedMoverChecksNegative, 23 SemBasedMoverChecksPositive, 87 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 175 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 118 PlacesBefore, 48 PlacesAfterwards, 111 TransitionsBefore, 34 TransitionsAfterwards, 8232 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 26 ConcurrentYvCompositions, 7 ChoiceCompositions, 102 TotalNumberOfCompositions, 15392 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 7630 VarBasedMoverChecksPositive, 109 VarBasedMoverChecksNegative, 21 SemBasedMoverChecksPositive, 88 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 306 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 132 PlacesBefore, 54 PlacesAfterwards, 124 TransitionsBefore, 38 TransitionsAfterwards, 10656 CoEnabledTransitionPairs, 4 FixpointIterations, 9 TrivialSequentialCompositions, 66 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 30 ConcurrentYvCompositions, 8 ChoiceCompositions, 113 TotalNumberOfCompositions, 18266 MoverChecksTotal - TimeoutResultAtElement [Line: 680]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 680). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 1 error locations. Started 8 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 781.3s, OverallIterations: 60, TraceHistogramMax: 8, AutomataDifference: 26.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 464.0s, HoareTripleCheckerStatistics: 1618 SDtfs, 1072 SDslu, 834 SDs, 0 SdLazy, 1238 SolverSat, 130 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 177 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=415060occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 288.3s AutomataMinimizationTime, 53 MinimizatonAttempts, 192156 StatesRemovedByMinimization, 51 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 717 NumberOfCodeBlocks, 717 NumberOfCodeBlocksAsserted, 60 NumberOfCheckSat, 559 ConstructedInterpolants, 0 QuantifiedInterpolants, 9001 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 53 InterpolantComputations, 53 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