/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread/singleton.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:39:14,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:39:14,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:39:14,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:39:14,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:39:14,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:39:14,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:39:14,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:39:14,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:39:14,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:39:14,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:39:14,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:39:14,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:39:14,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:39:14,990 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:39:14,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:39:14,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:39:14,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:39:14,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:39:14,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:39:14,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:39:14,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:39:14,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:39:15,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:39:15,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 11:39:15,003 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 11:39:15,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 11:39:15,004 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 11:39:15,004 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 11:39:15,005 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 11:39:15,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:39:15,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:39:15,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:39:15,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:39:15,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:39:15,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:39:15,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:39:15,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:39:15,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:39:15,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:39:15,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:39:15,012 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 11:39:15,037 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:39:15,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:39:15,039 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:39:15,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:39:15,039 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:39:15,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:39:15,040 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:39:15,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:39:15,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:39:15,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:39:15,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:39:15,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:39:15,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:39:15,041 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:39:15,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:39:15,041 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:39:15,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:39:15,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:39:15,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:39:15,042 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:39:15,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:39:15,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:39:15,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:39:15,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 11:39:15,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:39:15,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:39:15,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:39:15,044 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 11:39:15,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:39:15,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:39:15,367 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:39:15,371 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:39:15,373 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:39:15,375 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:39:15,375 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton.i [2020-10-16 11:39:15,437 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/873266000/2e344df5c3954034b96ef8cc511bac0c/FLAG4bc83b9f0 [2020-10-16 11:39:16,057 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:39:16,058 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread/singleton.i [2020-10-16 11:39:16,079 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/873266000/2e344df5c3954034b96ef8cc511bac0c/FLAG4bc83b9f0 [2020-10-16 11:39:16,303 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/873266000/2e344df5c3954034b96ef8cc511bac0c [2020-10-16 11:39:16,313 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:39:16,315 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:39:16,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:39:16,316 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:39:16,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:39:16,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:39:16" (1/1) ... [2020-10-16 11:39:16,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@207010d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:39:16, skipping insertion in model container [2020-10-16 11:39:16,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:39:16" (1/1) ... [2020-10-16 11:39:16,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:39:16,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:39:16,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:39:16,940 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:39:17,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:39:17,200 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:39:17,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:39:17 WrapperNode [2020-10-16 11:39:17,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:39:17,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:39:17,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:39:17,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:39:17,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:39:17" (1/1) ... [2020-10-16 11:39:17,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:39:17" (1/1) ... [2020-10-16 11:39:17,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:39:17,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:39:17,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:39:17,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:39:17,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:39:17" (1/1) ... [2020-10-16 11:39:17,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:39:17" (1/1) ... [2020-10-16 11:39:17,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:39:17" (1/1) ... [2020-10-16 11:39:17,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:39:17" (1/1) ... [2020-10-16 11:39:17,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:39:17" (1/1) ... [2020-10-16 11:39:17,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:39:17" (1/1) ... [2020-10-16 11:39:17,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:39:17" (1/1) ... [2020-10-16 11:39:17,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:39:17,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:39:17,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:39:17,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:39:17,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:39:17" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:39:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:39:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:39:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 11:39:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2020-10-16 11:39:17,363 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2020-10-16 11:39:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-16 11:39:17,363 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-16 11:39:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-16 11:39:17,363 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-16 11:39:17,364 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-10-16 11:39:17,364 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-10-16 11:39:17,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:39:17,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-16 11:39:17,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:39:17,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:39:17,366 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:39:17,775 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:39:17,775 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-16 11:39:17,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:39:17 BoogieIcfgContainer [2020-10-16 11:39:17,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:39:17,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:39:17,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:39:17,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:39:17,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:39:16" (1/3) ... [2020-10-16 11:39:17,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5787ccfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:39:17, skipping insertion in model container [2020-10-16 11:39:17,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:39:17" (2/3) ... [2020-10-16 11:39:17,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5787ccfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:39:17, skipping insertion in model container [2020-10-16 11:39:17,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:39:17" (3/3) ... [2020-10-16 11:39:17,804 INFO L111 eAbstractionObserver]: Analyzing ICFG singleton.i [2020-10-16 11:39:17,816 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:39:17,816 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:39:17,823 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 11:39:17,823 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:39:17,869 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,869 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,869 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,870 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,870 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,870 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,871 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,873 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,874 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,874 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,874 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,874 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,875 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,875 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,875 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,875 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,876 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,876 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,876 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,877 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,877 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,878 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,878 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,878 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,879 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,879 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,879 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,879 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,879 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,880 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,880 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,880 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,881 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,881 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,881 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,881 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,882 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,882 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,882 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,882 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,883 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,883 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,883 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,883 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,883 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,884 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,884 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,884 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,885 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,885 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,885 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,885 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,886 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,886 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,886 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,886 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,886 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,887 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,887 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,887 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,887 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,888 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,888 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,888 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,888 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,888 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,889 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,889 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,889 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,890 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,890 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,890 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,890 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,891 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,891 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,891 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,891 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,892 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,892 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,892 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,892 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,892 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,893 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,893 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,893 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,893 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,894 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,894 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,894 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,894 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,895 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,895 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,895 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,895 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,896 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,896 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,896 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,896 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,897 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,897 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,901 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,901 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,901 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,902 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,908 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,908 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,908 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,908 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,910 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,911 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,911 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,911 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,913 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,913 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,914 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,914 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,914 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,914 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,914 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,915 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,915 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,915 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,915 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,915 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,916 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,916 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,916 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,916 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,916 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,917 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,917 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,917 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,917 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,917 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,917 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,918 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,920 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,920 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,921 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,921 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,921 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,921 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,924 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,924 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,925 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,925 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,927 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,927 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,927 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,927 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,928 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,928 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork4_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,930 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,930 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,930 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,930 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,932 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,932 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,933 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,933 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,934 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,935 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,935 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,935 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,937 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,937 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,937 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:17,938 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:39:18,050 INFO L149 ThreadInstanceAdder]: Constructed 121 joinOtherThreadTransitions. [2020-10-16 11:39:18,065 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-10-16 11:39:18,094 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:39:18,095 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:39:18,095 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 11:39:18,095 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:39:18,095 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:39:18,095 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:39:18,095 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:39:18,096 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:39:18,128 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 11:39:18,129 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 172 places, 243 transitions, 866 flow [2020-10-16 11:39:18,132 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 172 places, 243 transitions, 866 flow [2020-10-16 11:39:18,135 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 172 places, 243 transitions, 866 flow [2020-10-16 11:39:18,316 INFO L129 PetriNetUnfolder]: 61/264 cut-off events. [2020-10-16 11:39:18,317 INFO L130 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2020-10-16 11:39:18,331 INFO L80 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 264 events. 61/264 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 750 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 353. Up to 24 conditions per place. [2020-10-16 11:39:18,348 INFO L117 LiptonReduction]: Number of co-enabled transitions 4038 [2020-10-16 11:39:20,074 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-10-16 11:39:20,205 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-16 11:39:20,434 INFO L132 LiptonReduction]: Checked pairs total: 47722 [2020-10-16 11:39:20,434 INFO L134 LiptonReduction]: Total number of compositions: 76 [2020-10-16 11:39:20,444 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 101 places, 173 transitions, 726 flow [2020-10-16 11:39:21,173 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 3502 states. [2020-10-16 11:39:21,177 INFO L276 IsEmpty]: Start isEmpty. Operand 3502 states. [2020-10-16 11:39:21,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:39:21,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:21,193 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:21,193 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:21,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:21,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1069688068, now seen corresponding path program 1 times [2020-10-16 11:39:21,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:21,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630825266] [2020-10-16 11:39:21,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:21,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:21,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:21,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630825266] [2020-10-16 11:39:21,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:21,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 11:39:21,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711672433] [2020-10-16 11:39:21,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 11:39:21,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:21,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 11:39:21,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:39:21,685 INFO L87 Difference]: Start difference. First operand 3502 states. Second operand 6 states. [2020-10-16 11:39:22,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:22,040 INFO L93 Difference]: Finished difference Result 4760 states and 19900 transitions. [2020-10-16 11:39:22,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:39:22,042 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2020-10-16 11:39:22,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:22,113 INFO L225 Difference]: With dead ends: 4760 [2020-10-16 11:39:22,113 INFO L226 Difference]: Without dead ends: 4272 [2020-10-16 11:39:22,115 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 11:39:22,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4272 states. [2020-10-16 11:39:22,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4272 to 3018. [2020-10-16 11:39:22,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3018 states. [2020-10-16 11:39:22,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3018 states to 3018 states and 12272 transitions. [2020-10-16 11:39:22,518 INFO L78 Accepts]: Start accepts. Automaton has 3018 states and 12272 transitions. Word has length 9 [2020-10-16 11:39:22,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:22,519 INFO L481 AbstractCegarLoop]: Abstraction has 3018 states and 12272 transitions. [2020-10-16 11:39:22,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 11:39:22,522 INFO L276 IsEmpty]: Start isEmpty. Operand 3018 states and 12272 transitions. [2020-10-16 11:39:22,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:39:22,523 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:22,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:22,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:39:22,524 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:22,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:22,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1263032832, now seen corresponding path program 2 times [2020-10-16 11:39:22,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:22,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786322756] [2020-10-16 11:39:22,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:22,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:22,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786322756] [2020-10-16 11:39:22,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:22,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 11:39:22,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229842661] [2020-10-16 11:39:22,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 11:39:22,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:22,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 11:39:22,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:39:22,693 INFO L87 Difference]: Start difference. First operand 3018 states and 12272 transitions. Second operand 6 states. [2020-10-16 11:39:23,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:23,055 INFO L93 Difference]: Finished difference Result 5518 states and 23821 transitions. [2020-10-16 11:39:23,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 11:39:23,055 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2020-10-16 11:39:23,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:23,116 INFO L225 Difference]: With dead ends: 5518 [2020-10-16 11:39:23,116 INFO L226 Difference]: Without dead ends: 5518 [2020-10-16 11:39:23,117 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-16 11:39:23,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5518 states. [2020-10-16 11:39:23,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5518 to 3008. [2020-10-16 11:39:23,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3008 states. [2020-10-16 11:39:23,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 12255 transitions. [2020-10-16 11:39:23,380 INFO L78 Accepts]: Start accepts. Automaton has 3008 states and 12255 transitions. Word has length 9 [2020-10-16 11:39:23,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:23,380 INFO L481 AbstractCegarLoop]: Abstraction has 3008 states and 12255 transitions. [2020-10-16 11:39:23,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 11:39:23,381 INFO L276 IsEmpty]: Start isEmpty. Operand 3008 states and 12255 transitions. [2020-10-16 11:39:23,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 11:39:23,383 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:23,384 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:23,384 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:39:23,384 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:23,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:23,385 INFO L82 PathProgramCache]: Analyzing trace with hash -690496787, now seen corresponding path program 1 times [2020-10-16 11:39:23,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:23,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23940069] [2020-10-16 11:39:23,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:23,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:23,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23940069] [2020-10-16 11:39:23,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:23,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:39:23,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662652379] [2020-10-16 11:39:23,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:39:23,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:23,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:39:23,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:39:23,474 INFO L87 Difference]: Start difference. First operand 3008 states and 12255 transitions. Second operand 3 states. [2020-10-16 11:39:23,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:23,720 INFO L93 Difference]: Finished difference Result 4848 states and 19273 transitions. [2020-10-16 11:39:23,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:39:23,721 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-16 11:39:23,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:23,756 INFO L225 Difference]: With dead ends: 4848 [2020-10-16 11:39:23,757 INFO L226 Difference]: Without dead ends: 3558 [2020-10-16 11:39:23,757 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:39:23,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3558 states. [2020-10-16 11:39:23,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3558 to 3181. [2020-10-16 11:39:23,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3181 states. [2020-10-16 11:39:23,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 12171 transitions. [2020-10-16 11:39:23,914 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 12171 transitions. Word has length 16 [2020-10-16 11:39:23,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:23,915 INFO L481 AbstractCegarLoop]: Abstraction has 3181 states and 12171 transitions. [2020-10-16 11:39:23,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:39:23,915 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 12171 transitions. [2020-10-16 11:39:23,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 11:39:23,917 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:23,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:23,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:39:23,918 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:23,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:23,918 INFO L82 PathProgramCache]: Analyzing trace with hash 69435085, now seen corresponding path program 1 times [2020-10-16 11:39:23,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:23,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124153013] [2020-10-16 11:39:23,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:23,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:23,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124153013] [2020-10-16 11:39:23,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:23,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 11:39:23,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666203055] [2020-10-16 11:39:23,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 11:39:23,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:23,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 11:39:23,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:39:23,985 INFO L87 Difference]: Start difference. First operand 3181 states and 12171 transitions. Second operand 6 states. [2020-10-16 11:39:24,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:24,203 INFO L93 Difference]: Finished difference Result 4417 states and 17212 transitions. [2020-10-16 11:39:24,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:39:24,204 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-16 11:39:24,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:24,240 INFO L225 Difference]: With dead ends: 4417 [2020-10-16 11:39:24,240 INFO L226 Difference]: Without dead ends: 4393 [2020-10-16 11:39:24,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-16 11:39:24,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4393 states. [2020-10-16 11:39:24,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4393 to 3588. [2020-10-16 11:39:24,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3588 states. [2020-10-16 11:39:24,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3588 states to 3588 states and 14085 transitions. [2020-10-16 11:39:24,434 INFO L78 Accepts]: Start accepts. Automaton has 3588 states and 14085 transitions. Word has length 17 [2020-10-16 11:39:24,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:24,435 INFO L481 AbstractCegarLoop]: Abstraction has 3588 states and 14085 transitions. [2020-10-16 11:39:24,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 11:39:24,435 INFO L276 IsEmpty]: Start isEmpty. Operand 3588 states and 14085 transitions. [2020-10-16 11:39:24,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 11:39:24,437 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:24,437 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:24,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:39:24,437 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:24,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:24,438 INFO L82 PathProgramCache]: Analyzing trace with hash -954298863, now seen corresponding path program 2 times [2020-10-16 11:39:24,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:24,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874456026] [2020-10-16 11:39:24,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:24,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:24,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:24,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874456026] [2020-10-16 11:39:24,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:24,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 11:39:24,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458345878] [2020-10-16 11:39:24,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 11:39:24,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:24,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 11:39:24,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:39:24,532 INFO L87 Difference]: Start difference. First operand 3588 states and 14085 transitions. Second operand 6 states. [2020-10-16 11:39:24,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:24,669 INFO L93 Difference]: Finished difference Result 4024 states and 15445 transitions. [2020-10-16 11:39:24,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:39:24,670 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-16 11:39:24,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:24,754 INFO L225 Difference]: With dead ends: 4024 [2020-10-16 11:39:24,754 INFO L226 Difference]: Without dead ends: 4024 [2020-10-16 11:39:24,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 11:39:24,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4024 states. [2020-10-16 11:39:24,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4024 to 3573. [2020-10-16 11:39:24,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3573 states. [2020-10-16 11:39:24,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3573 states to 3573 states and 14045 transitions. [2020-10-16 11:39:24,922 INFO L78 Accepts]: Start accepts. Automaton has 3573 states and 14045 transitions. Word has length 17 [2020-10-16 11:39:24,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:24,923 INFO L481 AbstractCegarLoop]: Abstraction has 3573 states and 14045 transitions. [2020-10-16 11:39:24,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 11:39:24,923 INFO L276 IsEmpty]: Start isEmpty. Operand 3573 states and 14045 transitions. [2020-10-16 11:39:24,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 11:39:24,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:24,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:24,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:39:24,925 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:24,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:24,926 INFO L82 PathProgramCache]: Analyzing trace with hash -687500069, now seen corresponding path program 1 times [2020-10-16 11:39:24,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:24,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344359533] [2020-10-16 11:39:24,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:24,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:24,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:24,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344359533] [2020-10-16 11:39:24,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:24,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 11:39:24,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218598142] [2020-10-16 11:39:24,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 11:39:24,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:24,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 11:39:24,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:39:24,986 INFO L87 Difference]: Start difference. First operand 3573 states and 14045 transitions. Second operand 6 states. [2020-10-16 11:39:25,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:25,236 INFO L93 Difference]: Finished difference Result 4225 states and 16225 transitions. [2020-10-16 11:39:25,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:39:25,236 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-16 11:39:25,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:25,258 INFO L225 Difference]: With dead ends: 4225 [2020-10-16 11:39:25,259 INFO L226 Difference]: Without dead ends: 4129 [2020-10-16 11:39:25,259 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-16 11:39:25,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4129 states. [2020-10-16 11:39:25,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4129 to 3713. [2020-10-16 11:39:25,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3713 states. [2020-10-16 11:39:25,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3713 states to 3713 states and 14455 transitions. [2020-10-16 11:39:25,417 INFO L78 Accepts]: Start accepts. Automaton has 3713 states and 14455 transitions. Word has length 18 [2020-10-16 11:39:25,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:25,418 INFO L481 AbstractCegarLoop]: Abstraction has 3713 states and 14455 transitions. [2020-10-16 11:39:25,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 11:39:25,418 INFO L276 IsEmpty]: Start isEmpty. Operand 3713 states and 14455 transitions. [2020-10-16 11:39:25,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 11:39:25,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:25,420 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:25,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 11:39:25,421 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:25,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:25,421 INFO L82 PathProgramCache]: Analyzing trace with hash -454402421, now seen corresponding path program 2 times [2020-10-16 11:39:25,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:25,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572172120] [2020-10-16 11:39:25,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:25,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:25,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572172120] [2020-10-16 11:39:25,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:25,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 11:39:25,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486895412] [2020-10-16 11:39:25,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 11:39:25,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:25,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 11:39:25,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-16 11:39:25,502 INFO L87 Difference]: Start difference. First operand 3713 states and 14455 transitions. Second operand 7 states. [2020-10-16 11:39:25,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:25,872 INFO L93 Difference]: Finished difference Result 4979 states and 19779 transitions. [2020-10-16 11:39:25,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 11:39:25,873 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-16 11:39:25,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:25,894 INFO L225 Difference]: With dead ends: 4979 [2020-10-16 11:39:25,894 INFO L226 Difference]: Without dead ends: 4905 [2020-10-16 11:39:25,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-16 11:39:25,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4905 states. [2020-10-16 11:39:26,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4905 to 4131. [2020-10-16 11:39:26,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4131 states. [2020-10-16 11:39:26,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 16620 transitions. [2020-10-16 11:39:26,054 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 16620 transitions. Word has length 18 [2020-10-16 11:39:26,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:26,054 INFO L481 AbstractCegarLoop]: Abstraction has 4131 states and 16620 transitions. [2020-10-16 11:39:26,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 11:39:26,055 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 16620 transitions. [2020-10-16 11:39:26,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 11:39:26,056 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:26,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:26,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 11:39:26,057 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:26,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:26,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1254406997, now seen corresponding path program 3 times [2020-10-16 11:39:26,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:26,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194364096] [2020-10-16 11:39:26,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:26,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:26,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:26,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194364096] [2020-10-16 11:39:26,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:26,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-16 11:39:26,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190056168] [2020-10-16 11:39:26,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 11:39:26,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:26,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 11:39:26,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-16 11:39:26,147 INFO L87 Difference]: Start difference. First operand 4131 states and 16620 transitions. Second operand 8 states. [2020-10-16 11:39:26,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:26,528 INFO L93 Difference]: Finished difference Result 6735 states and 27904 transitions. [2020-10-16 11:39:26,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 11:39:26,529 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-10-16 11:39:26,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:26,563 INFO L225 Difference]: With dead ends: 6735 [2020-10-16 11:39:26,563 INFO L226 Difference]: Without dead ends: 6661 [2020-10-16 11:39:26,563 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-16 11:39:26,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6661 states. [2020-10-16 11:39:26,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6661 to 4129. [2020-10-16 11:39:26,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4129 states. [2020-10-16 11:39:26,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4129 states to 4129 states and 16616 transitions. [2020-10-16 11:39:26,765 INFO L78 Accepts]: Start accepts. Automaton has 4129 states and 16616 transitions. Word has length 18 [2020-10-16 11:39:26,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:26,765 INFO L481 AbstractCegarLoop]: Abstraction has 4129 states and 16616 transitions. [2020-10-16 11:39:26,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 11:39:26,766 INFO L276 IsEmpty]: Start isEmpty. Operand 4129 states and 16616 transitions. [2020-10-16 11:39:26,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 11:39:26,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:26,768 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:26,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 11:39:26,768 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:26,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:26,769 INFO L82 PathProgramCache]: Analyzing trace with hash -164095139, now seen corresponding path program 4 times [2020-10-16 11:39:26,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:26,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349517391] [2020-10-16 11:39:26,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:26,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:26,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:26,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349517391] [2020-10-16 11:39:26,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:26,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 11:39:26,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064187762] [2020-10-16 11:39:26,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 11:39:26,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:26,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 11:39:26,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-16 11:39:26,929 INFO L87 Difference]: Start difference. First operand 4129 states and 16616 transitions. Second operand 10 states. [2020-10-16 11:39:27,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:27,520 INFO L93 Difference]: Finished difference Result 6639 states and 26238 transitions. [2020-10-16 11:39:27,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 11:39:27,521 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-10-16 11:39:27,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:27,550 INFO L225 Difference]: With dead ends: 6639 [2020-10-16 11:39:27,550 INFO L226 Difference]: Without dead ends: 6491 [2020-10-16 11:39:27,551 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-10-16 11:39:27,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6491 states. [2020-10-16 11:39:27,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6491 to 3873. [2020-10-16 11:39:27,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3873 states. [2020-10-16 11:39:27,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3873 states to 3873 states and 15364 transitions. [2020-10-16 11:39:27,710 INFO L78 Accepts]: Start accepts. Automaton has 3873 states and 15364 transitions. Word has length 18 [2020-10-16 11:39:27,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:27,712 INFO L481 AbstractCegarLoop]: Abstraction has 3873 states and 15364 transitions. [2020-10-16 11:39:27,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 11:39:27,713 INFO L276 IsEmpty]: Start isEmpty. Operand 3873 states and 15364 transitions. [2020-10-16 11:39:27,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 11:39:27,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:27,715 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:27,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 11:39:27,715 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:27,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:27,716 INFO L82 PathProgramCache]: Analyzing trace with hash 2041625758, now seen corresponding path program 1 times [2020-10-16 11:39:27,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:27,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471719747] [2020-10-16 11:39:27,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:27,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:27,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471719747] [2020-10-16 11:39:27,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:27,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 11:39:27,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46510738] [2020-10-16 11:39:27,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 11:39:27,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:27,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 11:39:27,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-16 11:39:27,822 INFO L87 Difference]: Start difference. First operand 3873 states and 15364 transitions. Second operand 7 states. [2020-10-16 11:39:27,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:27,961 INFO L93 Difference]: Finished difference Result 4264 states and 16502 transitions. [2020-10-16 11:39:27,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:39:27,961 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-16 11:39:27,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:27,974 INFO L225 Difference]: With dead ends: 4264 [2020-10-16 11:39:27,974 INFO L226 Difference]: Without dead ends: 4264 [2020-10-16 11:39:27,974 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-16 11:39:27,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4264 states. [2020-10-16 11:39:28,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4264 to 3841. [2020-10-16 11:39:28,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3841 states. [2020-10-16 11:39:28,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3841 states to 3841 states and 15250 transitions. [2020-10-16 11:39:28,100 INFO L78 Accepts]: Start accepts. Automaton has 3841 states and 15250 transitions. Word has length 19 [2020-10-16 11:39:28,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:28,101 INFO L481 AbstractCegarLoop]: Abstraction has 3841 states and 15250 transitions. [2020-10-16 11:39:28,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 11:39:28,101 INFO L276 IsEmpty]: Start isEmpty. Operand 3841 states and 15250 transitions. [2020-10-16 11:39:28,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 11:39:28,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:28,103 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:28,103 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 11:39:28,104 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:28,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:28,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1134272272, now seen corresponding path program 1 times [2020-10-16 11:39:28,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:28,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051155740] [2020-10-16 11:39:28,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:28,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:28,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:28,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051155740] [2020-10-16 11:39:28,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:28,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 11:39:28,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934955872] [2020-10-16 11:39:28,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 11:39:28,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:28,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 11:39:28,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-16 11:39:28,294 INFO L87 Difference]: Start difference. First operand 3841 states and 15250 transitions. Second operand 9 states. [2020-10-16 11:39:28,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:28,648 INFO L93 Difference]: Finished difference Result 5256 states and 20905 transitions. [2020-10-16 11:39:28,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 11:39:28,649 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-10-16 11:39:28,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:28,662 INFO L225 Difference]: With dead ends: 5256 [2020-10-16 11:39:28,662 INFO L226 Difference]: Without dead ends: 5210 [2020-10-16 11:39:28,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-10-16 11:39:28,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5210 states. [2020-10-16 11:39:28,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5210 to 3994. [2020-10-16 11:39:28,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3994 states. [2020-10-16 11:39:28,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3994 states to 3994 states and 15976 transitions. [2020-10-16 11:39:28,787 INFO L78 Accepts]: Start accepts. Automaton has 3994 states and 15976 transitions. Word has length 20 [2020-10-16 11:39:28,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:28,787 INFO L481 AbstractCegarLoop]: Abstraction has 3994 states and 15976 transitions. [2020-10-16 11:39:28,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 11:39:28,787 INFO L276 IsEmpty]: Start isEmpty. Operand 3994 states and 15976 transitions. [2020-10-16 11:39:28,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 11:39:28,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:28,790 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:28,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 11:39:28,790 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:28,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:28,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1058647793, now seen corresponding path program 1 times [2020-10-16 11:39:28,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:28,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382196259] [2020-10-16 11:39:28,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:28,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:28,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:28,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382196259] [2020-10-16 11:39:28,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:28,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 11:39:28,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104766892] [2020-10-16 11:39:28,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 11:39:28,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:28,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 11:39:28,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-16 11:39:28,887 INFO L87 Difference]: Start difference. First operand 3994 states and 15976 transitions. Second operand 9 states. [2020-10-16 11:39:29,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:29,223 INFO L93 Difference]: Finished difference Result 5328 states and 21486 transitions. [2020-10-16 11:39:29,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 11:39:29,224 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-10-16 11:39:29,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:29,241 INFO L225 Difference]: With dead ends: 5328 [2020-10-16 11:39:29,241 INFO L226 Difference]: Without dead ends: 5282 [2020-10-16 11:39:29,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-16 11:39:29,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5282 states. [2020-10-16 11:39:29,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5282 to 3840. [2020-10-16 11:39:29,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3840 states. [2020-10-16 11:39:29,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3840 states to 3840 states and 15247 transitions. [2020-10-16 11:39:29,381 INFO L78 Accepts]: Start accepts. Automaton has 3840 states and 15247 transitions. Word has length 20 [2020-10-16 11:39:29,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:29,381 INFO L481 AbstractCegarLoop]: Abstraction has 3840 states and 15247 transitions. [2020-10-16 11:39:29,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 11:39:29,382 INFO L276 IsEmpty]: Start isEmpty. Operand 3840 states and 15247 transitions. [2020-10-16 11:39:29,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 11:39:29,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:29,385 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:29,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 11:39:29,386 INFO L429 AbstractCegarLoop]: === Iteration 13 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:29,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:29,386 INFO L82 PathProgramCache]: Analyzing trace with hash 2045819536, now seen corresponding path program 2 times [2020-10-16 11:39:29,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:29,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175059850] [2020-10-16 11:39:29,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:29,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:29,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:29,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175059850] [2020-10-16 11:39:29,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:29,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 11:39:29,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322326678] [2020-10-16 11:39:29,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 11:39:29,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:29,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 11:39:29,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-16 11:39:29,547 INFO L87 Difference]: Start difference. First operand 3840 states and 15247 transitions. Second operand 10 states. [2020-10-16 11:39:30,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:30,171 INFO L93 Difference]: Finished difference Result 5284 states and 20663 transitions. [2020-10-16 11:39:30,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 11:39:30,172 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-10-16 11:39:30,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:30,189 INFO L225 Difference]: With dead ends: 5284 [2020-10-16 11:39:30,189 INFO L226 Difference]: Without dead ends: 5192 [2020-10-16 11:39:30,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-10-16 11:39:30,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5192 states. [2020-10-16 11:39:30,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5192 to 3734. [2020-10-16 11:39:30,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3734 states. [2020-10-16 11:39:30,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3734 states to 3734 states and 14462 transitions. [2020-10-16 11:39:30,316 INFO L78 Accepts]: Start accepts. Automaton has 3734 states and 14462 transitions. Word has length 20 [2020-10-16 11:39:30,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:30,319 INFO L481 AbstractCegarLoop]: Abstraction has 3734 states and 14462 transitions. [2020-10-16 11:39:30,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 11:39:30,319 INFO L276 IsEmpty]: Start isEmpty. Operand 3734 states and 14462 transitions. [2020-10-16 11:39:30,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 11:39:30,322 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:30,322 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:30,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-16 11:39:30,322 INFO L429 AbstractCegarLoop]: === Iteration 14 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:30,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:30,323 INFO L82 PathProgramCache]: Analyzing trace with hash 258643217, now seen corresponding path program 2 times [2020-10-16 11:39:30,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:30,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742318536] [2020-10-16 11:39:30,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:30,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:30,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:30,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742318536] [2020-10-16 11:39:30,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:30,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 11:39:30,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055122805] [2020-10-16 11:39:30,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 11:39:30,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:30,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 11:39:30,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-16 11:39:30,442 INFO L87 Difference]: Start difference. First operand 3734 states and 14462 transitions. Second operand 10 states. [2020-10-16 11:39:30,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:30,910 INFO L93 Difference]: Finished difference Result 6322 states and 24832 transitions. [2020-10-16 11:39:30,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 11:39:30,911 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-10-16 11:39:30,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:30,927 INFO L225 Difference]: With dead ends: 6322 [2020-10-16 11:39:30,927 INFO L226 Difference]: Without dead ends: 6276 [2020-10-16 11:39:30,928 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2020-10-16 11:39:30,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6276 states. [2020-10-16 11:39:31,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6276 to 3733. [2020-10-16 11:39:31,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3733 states. [2020-10-16 11:39:31,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3733 states to 3733 states and 14461 transitions. [2020-10-16 11:39:31,061 INFO L78 Accepts]: Start accepts. Automaton has 3733 states and 14461 transitions. Word has length 20 [2020-10-16 11:39:31,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:31,061 INFO L481 AbstractCegarLoop]: Abstraction has 3733 states and 14461 transitions. [2020-10-16 11:39:31,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 11:39:31,061 INFO L276 IsEmpty]: Start isEmpty. Operand 3733 states and 14461 transitions. [2020-10-16 11:39:31,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 11:39:31,063 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:31,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:31,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-16 11:39:31,064 INFO L429 AbstractCegarLoop]: === Iteration 15 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:31,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:31,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1348955075, now seen corresponding path program 3 times [2020-10-16 11:39:31,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:31,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38899245] [2020-10-16 11:39:31,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:31,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:31,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38899245] [2020-10-16 11:39:31,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:31,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 11:39:31,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244905945] [2020-10-16 11:39:31,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-16 11:39:31,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:31,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-16 11:39:31,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-16 11:39:31,274 INFO L87 Difference]: Start difference. First operand 3733 states and 14461 transitions. Second operand 11 states. [2020-10-16 11:39:32,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:32,045 INFO L93 Difference]: Finished difference Result 4743 states and 18376 transitions. [2020-10-16 11:39:32,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 11:39:32,046 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 20 [2020-10-16 11:39:32,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:32,062 INFO L225 Difference]: With dead ends: 4743 [2020-10-16 11:39:32,063 INFO L226 Difference]: Without dead ends: 4709 [2020-10-16 11:39:32,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-10-16 11:39:32,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4709 states. [2020-10-16 11:39:32,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4709 to 3733. [2020-10-16 11:39:32,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3733 states. [2020-10-16 11:39:32,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3733 states to 3733 states and 14461 transitions. [2020-10-16 11:39:32,180 INFO L78 Accepts]: Start accepts. Automaton has 3733 states and 14461 transitions. Word has length 20 [2020-10-16 11:39:32,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:32,180 INFO L481 AbstractCegarLoop]: Abstraction has 3733 states and 14461 transitions. [2020-10-16 11:39:32,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-16 11:39:32,180 INFO L276 IsEmpty]: Start isEmpty. Operand 3733 states and 14461 transitions. [2020-10-16 11:39:32,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 11:39:32,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:32,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:32,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-16 11:39:32,184 INFO L429 AbstractCegarLoop]: === Iteration 16 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:32,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:32,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1331080475, now seen corresponding path program 4 times [2020-10-16 11:39:32,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:32,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458270291] [2020-10-16 11:39:32,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:32,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:32,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458270291] [2020-10-16 11:39:32,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:32,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 11:39:32,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968061279] [2020-10-16 11:39:32,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 11:39:32,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:32,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 11:39:32,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-16 11:39:32,306 INFO L87 Difference]: Start difference. First operand 3733 states and 14461 transitions. Second operand 10 states. [2020-10-16 11:39:32,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:32,677 INFO L93 Difference]: Finished difference Result 4987 states and 19433 transitions. [2020-10-16 11:39:32,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 11:39:32,677 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-10-16 11:39:32,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:32,690 INFO L225 Difference]: With dead ends: 4987 [2020-10-16 11:39:32,691 INFO L226 Difference]: Without dead ends: 4941 [2020-10-16 11:39:32,691 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2020-10-16 11:39:32,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4941 states. [2020-10-16 11:39:32,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4941 to 3727. [2020-10-16 11:39:32,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3727 states. [2020-10-16 11:39:32,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3727 states to 3727 states and 14449 transitions. [2020-10-16 11:39:32,801 INFO L78 Accepts]: Start accepts. Automaton has 3727 states and 14449 transitions. Word has length 20 [2020-10-16 11:39:32,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:32,802 INFO L481 AbstractCegarLoop]: Abstraction has 3727 states and 14449 transitions. [2020-10-16 11:39:32,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 11:39:32,802 INFO L276 IsEmpty]: Start isEmpty. Operand 3727 states and 14449 transitions. [2020-10-16 11:39:32,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-16 11:39:32,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:32,805 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:32,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-16 11:39:32,805 INFO L429 AbstractCegarLoop]: === Iteration 17 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:32,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:32,805 INFO L82 PathProgramCache]: Analyzing trace with hash 657525156, now seen corresponding path program 3 times [2020-10-16 11:39:32,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:32,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638522020] [2020-10-16 11:39:32,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:32,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:32,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638522020] [2020-10-16 11:39:32,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:32,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 11:39:32,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545367372] [2020-10-16 11:39:32,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 11:39:32,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:32,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 11:39:32,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-16 11:39:32,861 INFO L87 Difference]: Start difference. First operand 3727 states and 14449 transitions. Second operand 7 states. [2020-10-16 11:39:33,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:33,070 INFO L93 Difference]: Finished difference Result 5325 states and 20419 transitions. [2020-10-16 11:39:33,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 11:39:33,071 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-10-16 11:39:33,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:33,083 INFO L225 Difference]: With dead ends: 5325 [2020-10-16 11:39:33,083 INFO L226 Difference]: Without dead ends: 5279 [2020-10-16 11:39:33,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-16 11:39:33,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5279 states. [2020-10-16 11:39:33,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5279 to 2948. [2020-10-16 11:39:33,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2948 states. [2020-10-16 11:39:33,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2948 states to 2948 states and 10967 transitions. [2020-10-16 11:39:33,178 INFO L78 Accepts]: Start accepts. Automaton has 2948 states and 10967 transitions. Word has length 20 [2020-10-16 11:39:33,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:33,178 INFO L481 AbstractCegarLoop]: Abstraction has 2948 states and 10967 transitions. [2020-10-16 11:39:33,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 11:39:33,179 INFO L276 IsEmpty]: Start isEmpty. Operand 2948 states and 10967 transitions. [2020-10-16 11:39:33,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 11:39:33,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:33,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:33,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-16 11:39:33,181 INFO L429 AbstractCegarLoop]: === Iteration 18 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:33,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:33,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1935934284, now seen corresponding path program 1 times [2020-10-16 11:39:33,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:33,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618251936] [2020-10-16 11:39:33,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:33,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:33,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618251936] [2020-10-16 11:39:33,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:33,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 11:39:33,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472897509] [2020-10-16 11:39:33,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 11:39:33,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:33,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 11:39:33,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:39:33,231 INFO L87 Difference]: Start difference. First operand 2948 states and 10967 transitions. Second operand 6 states. [2020-10-16 11:39:33,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:33,382 INFO L93 Difference]: Finished difference Result 3727 states and 13634 transitions. [2020-10-16 11:39:33,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:39:33,382 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-10-16 11:39:33,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:33,393 INFO L225 Difference]: With dead ends: 3727 [2020-10-16 11:39:33,393 INFO L226 Difference]: Without dead ends: 3652 [2020-10-16 11:39:33,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-16 11:39:33,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3652 states. [2020-10-16 11:39:33,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3652 to 3270. [2020-10-16 11:39:33,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3270 states. [2020-10-16 11:39:33,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3270 states to 3270 states and 12154 transitions. [2020-10-16 11:39:33,489 INFO L78 Accepts]: Start accepts. Automaton has 3270 states and 12154 transitions. Word has length 21 [2020-10-16 11:39:33,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:33,490 INFO L481 AbstractCegarLoop]: Abstraction has 3270 states and 12154 transitions. [2020-10-16 11:39:33,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 11:39:33,490 INFO L276 IsEmpty]: Start isEmpty. Operand 3270 states and 12154 transitions. [2020-10-16 11:39:33,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 11:39:33,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:33,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:33,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-16 11:39:33,493 INFO L429 AbstractCegarLoop]: === Iteration 19 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:33,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:33,494 INFO L82 PathProgramCache]: Analyzing trace with hash 558788524, now seen corresponding path program 1 times [2020-10-16 11:39:33,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:33,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86651938] [2020-10-16 11:39:33,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:33,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:33,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86651938] [2020-10-16 11:39:33,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:33,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-16 11:39:33,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404785615] [2020-10-16 11:39:33,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 11:39:33,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:33,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 11:39:33,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-16 11:39:33,859 INFO L87 Difference]: Start difference. First operand 3270 states and 12154 transitions. Second operand 12 states. [2020-10-16 11:39:34,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:34,587 INFO L93 Difference]: Finished difference Result 4405 states and 16600 transitions. [2020-10-16 11:39:34,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 11:39:34,588 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2020-10-16 11:39:34,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:34,599 INFO L225 Difference]: With dead ends: 4405 [2020-10-16 11:39:34,599 INFO L226 Difference]: Without dead ends: 4371 [2020-10-16 11:39:34,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2020-10-16 11:39:34,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4371 states. [2020-10-16 11:39:34,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4371 to 3270. [2020-10-16 11:39:34,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3270 states. [2020-10-16 11:39:34,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3270 states to 3270 states and 12154 transitions. [2020-10-16 11:39:34,686 INFO L78 Accepts]: Start accepts. Automaton has 3270 states and 12154 transitions. Word has length 21 [2020-10-16 11:39:34,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:34,687 INFO L481 AbstractCegarLoop]: Abstraction has 3270 states and 12154 transitions. [2020-10-16 11:39:34,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 11:39:34,687 INFO L276 IsEmpty]: Start isEmpty. Operand 3270 states and 12154 transitions. [2020-10-16 11:39:34,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 11:39:34,690 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:34,690 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:34,691 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-16 11:39:34,691 INFO L429 AbstractCegarLoop]: === Iteration 20 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:34,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:34,691 INFO L82 PathProgramCache]: Analyzing trace with hash 540913924, now seen corresponding path program 2 times [2020-10-16 11:39:34,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:34,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730328102] [2020-10-16 11:39:34,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:34,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:34,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730328102] [2020-10-16 11:39:34,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:34,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 11:39:34,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313044710] [2020-10-16 11:39:34,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-16 11:39:34,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:34,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-16 11:39:34,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-16 11:39:34,832 INFO L87 Difference]: Start difference. First operand 3270 states and 12154 transitions. Second operand 11 states. [2020-10-16 11:39:35,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:35,275 INFO L93 Difference]: Finished difference Result 4064 states and 15268 transitions. [2020-10-16 11:39:35,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 11:39:35,276 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-16 11:39:35,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:35,288 INFO L225 Difference]: With dead ends: 4064 [2020-10-16 11:39:35,288 INFO L226 Difference]: Without dead ends: 3972 [2020-10-16 11:39:35,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-16 11:39:35,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3972 states. [2020-10-16 11:39:35,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3972 to 2499. [2020-10-16 11:39:35,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2499 states. [2020-10-16 11:39:35,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2499 states to 2499 states and 9076 transitions. [2020-10-16 11:39:35,363 INFO L78 Accepts]: Start accepts. Automaton has 2499 states and 9076 transitions. Word has length 21 [2020-10-16 11:39:35,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:35,363 INFO L481 AbstractCegarLoop]: Abstraction has 2499 states and 9076 transitions. [2020-10-16 11:39:35,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-16 11:39:35,363 INFO L276 IsEmpty]: Start isEmpty. Operand 2499 states and 9076 transitions. [2020-10-16 11:39:35,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 11:39:35,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:35,366 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:35,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-16 11:39:35,366 INFO L429 AbstractCegarLoop]: === Iteration 21 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:35,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:35,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1608946948, now seen corresponding path program 2 times [2020-10-16 11:39:35,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:35,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734927101] [2020-10-16 11:39:35,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:35,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:35,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734927101] [2020-10-16 11:39:35,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:35,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 11:39:35,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61960302] [2020-10-16 11:39:35,419 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 11:39:35,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:35,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 11:39:35,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:39:35,420 INFO L87 Difference]: Start difference. First operand 2499 states and 9076 transitions. Second operand 6 states. [2020-10-16 11:39:35,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:35,526 INFO L93 Difference]: Finished difference Result 2874 states and 10132 transitions. [2020-10-16 11:39:35,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:39:35,526 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-10-16 11:39:35,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:35,533 INFO L225 Difference]: With dead ends: 2874 [2020-10-16 11:39:35,534 INFO L226 Difference]: Without dead ends: 2650 [2020-10-16 11:39:35,534 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 11:39:35,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2020-10-16 11:39:35,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 2211. [2020-10-16 11:39:35,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2211 states. [2020-10-16 11:39:35,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2211 states to 2211 states and 7918 transitions. [2020-10-16 11:39:35,574 INFO L78 Accepts]: Start accepts. Automaton has 2211 states and 7918 transitions. Word has length 21 [2020-10-16 11:39:35,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:35,575 INFO L481 AbstractCegarLoop]: Abstraction has 2211 states and 7918 transitions. [2020-10-16 11:39:35,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 11:39:35,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2211 states and 7918 transitions. [2020-10-16 11:39:35,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 11:39:35,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:35,577 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:35,578 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-16 11:39:35,578 INFO L429 AbstractCegarLoop]: === Iteration 22 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:35,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:35,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1396456954, now seen corresponding path program 1 times [2020-10-16 11:39:35,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:35,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832928646] [2020-10-16 11:39:35,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:35,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:35,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832928646] [2020-10-16 11:39:35,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:35,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 11:39:35,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319118527] [2020-10-16 11:39:35,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 11:39:35,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:35,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 11:39:35,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-16 11:39:35,653 INFO L87 Difference]: Start difference. First operand 2211 states and 7918 transitions. Second operand 7 states. [2020-10-16 11:39:35,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:35,882 INFO L93 Difference]: Finished difference Result 2930 states and 10378 transitions. [2020-10-16 11:39:35,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 11:39:35,882 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-10-16 11:39:35,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:35,889 INFO L225 Difference]: With dead ends: 2930 [2020-10-16 11:39:35,889 INFO L226 Difference]: Without dead ends: 2870 [2020-10-16 11:39:35,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-16 11:39:35,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states. [2020-10-16 11:39:35,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 2208. [2020-10-16 11:39:35,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2208 states. [2020-10-16 11:39:35,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 7913 transitions. [2020-10-16 11:39:35,930 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 7913 transitions. Word has length 22 [2020-10-16 11:39:35,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:35,930 INFO L481 AbstractCegarLoop]: Abstraction has 2208 states and 7913 transitions. [2020-10-16 11:39:35,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 11:39:35,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 7913 transitions. [2020-10-16 11:39:35,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 11:39:35,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:35,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:35,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-16 11:39:35,960 INFO L429 AbstractCegarLoop]: === Iteration 23 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:35,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:35,961 INFO L82 PathProgramCache]: Analyzing trace with hash 644682778, now seen corresponding path program 2 times [2020-10-16 11:39:35,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:35,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193716851] [2020-10-16 11:39:35,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:36,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:36,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193716851] [2020-10-16 11:39:36,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:36,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-16 11:39:36,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283046956] [2020-10-16 11:39:36,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 11:39:36,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:36,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 11:39:36,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-16 11:39:36,090 INFO L87 Difference]: Start difference. First operand 2208 states and 7913 transitions. Second operand 8 states. [2020-10-16 11:39:36,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:36,344 INFO L93 Difference]: Finished difference Result 2920 states and 10358 transitions. [2020-10-16 11:39:36,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 11:39:36,344 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-10-16 11:39:36,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:36,352 INFO L225 Difference]: With dead ends: 2920 [2020-10-16 11:39:36,352 INFO L226 Difference]: Without dead ends: 2860 [2020-10-16 11:39:36,353 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-16 11:39:36,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2860 states. [2020-10-16 11:39:36,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2860 to 2202. [2020-10-16 11:39:36,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2202 states. [2020-10-16 11:39:36,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 7899 transitions. [2020-10-16 11:39:36,406 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 7899 transitions. Word has length 22 [2020-10-16 11:39:36,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:36,406 INFO L481 AbstractCegarLoop]: Abstraction has 2202 states and 7899 transitions. [2020-10-16 11:39:36,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 11:39:36,407 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 7899 transitions. [2020-10-16 11:39:36,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 11:39:36,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:36,408 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:36,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-16 11:39:36,409 INFO L429 AbstractCegarLoop]: === Iteration 24 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:36,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:36,409 INFO L82 PathProgramCache]: Analyzing trace with hash -787433364, now seen corresponding path program 3 times [2020-10-16 11:39:36,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:36,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214480761] [2020-10-16 11:39:36,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:36,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:36,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214480761] [2020-10-16 11:39:36,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:36,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 11:39:36,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839852494] [2020-10-16 11:39:36,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 11:39:36,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:36,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 11:39:36,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-16 11:39:36,505 INFO L87 Difference]: Start difference. First operand 2202 states and 7899 transitions. Second operand 9 states. [2020-10-16 11:39:36,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:36,690 INFO L93 Difference]: Finished difference Result 2905 states and 10327 transitions. [2020-10-16 11:39:36,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 11:39:36,690 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-16 11:39:36,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:36,698 INFO L225 Difference]: With dead ends: 2905 [2020-10-16 11:39:36,699 INFO L226 Difference]: Without dead ends: 2845 [2020-10-16 11:39:36,699 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-10-16 11:39:36,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2845 states. [2020-10-16 11:39:36,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2845 to 2202. [2020-10-16 11:39:36,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2202 states. [2020-10-16 11:39:36,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 7899 transitions. [2020-10-16 11:39:36,757 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 7899 transitions. Word has length 22 [2020-10-16 11:39:36,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:36,757 INFO L481 AbstractCegarLoop]: Abstraction has 2202 states and 7899 transitions. [2020-10-16 11:39:36,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 11:39:36,757 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 7899 transitions. [2020-10-16 11:39:36,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 11:39:36,760 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:36,760 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:36,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-16 11:39:36,760 INFO L429 AbstractCegarLoop]: === Iteration 25 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:36,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:36,761 INFO L82 PathProgramCache]: Analyzing trace with hash -270857424, now seen corresponding path program 4 times [2020-10-16 11:39:36,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:36,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869165597] [2020-10-16 11:39:36,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:36,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:36,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869165597] [2020-10-16 11:39:36,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:36,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 11:39:36,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095205684] [2020-10-16 11:39:36,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-16 11:39:36,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:36,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-16 11:39:36,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-16 11:39:36,957 INFO L87 Difference]: Start difference. First operand 2202 states and 7899 transitions. Second operand 11 states. [2020-10-16 11:39:37,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:37,318 INFO L93 Difference]: Finished difference Result 3120 states and 11113 transitions. [2020-10-16 11:39:37,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 11:39:37,323 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2020-10-16 11:39:37,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:37,331 INFO L225 Difference]: With dead ends: 3120 [2020-10-16 11:39:37,331 INFO L226 Difference]: Without dead ends: 3060 [2020-10-16 11:39:37,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-16 11:39:37,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3060 states. [2020-10-16 11:39:37,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3060 to 2202. [2020-10-16 11:39:37,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2202 states. [2020-10-16 11:39:37,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 7896 transitions. [2020-10-16 11:39:37,377 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 7896 transitions. Word has length 22 [2020-10-16 11:39:37,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:37,377 INFO L481 AbstractCegarLoop]: Abstraction has 2202 states and 7896 transitions. [2020-10-16 11:39:37,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-16 11:39:37,378 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 7896 transitions. [2020-10-16 11:39:37,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 11:39:37,380 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:37,380 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:37,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-16 11:39:37,380 INFO L429 AbstractCegarLoop]: === Iteration 26 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:37,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:37,381 INFO L82 PathProgramCache]: Analyzing trace with hash -503603988, now seen corresponding path program 5 times [2020-10-16 11:39:37,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:37,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649423796] [2020-10-16 11:39:37,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:37,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:37,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649423796] [2020-10-16 11:39:37,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:37,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 11:39:37,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037851303] [2020-10-16 11:39:37,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 11:39:37,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:37,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 11:39:37,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-16 11:39:37,482 INFO L87 Difference]: Start difference. First operand 2202 states and 7896 transitions. Second operand 9 states. [2020-10-16 11:39:37,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:37,813 INFO L93 Difference]: Finished difference Result 3737 states and 13299 transitions. [2020-10-16 11:39:37,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 11:39:37,813 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-16 11:39:37,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:37,822 INFO L225 Difference]: With dead ends: 3737 [2020-10-16 11:39:37,822 INFO L226 Difference]: Without dead ends: 3677 [2020-10-16 11:39:37,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-16 11:39:37,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3677 states. [2020-10-16 11:39:37,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3677 to 2170. [2020-10-16 11:39:37,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2170 states. [2020-10-16 11:39:37,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 7789 transitions. [2020-10-16 11:39:37,867 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 7789 transitions. Word has length 22 [2020-10-16 11:39:37,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:37,867 INFO L481 AbstractCegarLoop]: Abstraction has 2170 states and 7789 transitions. [2020-10-16 11:39:37,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 11:39:37,868 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 7789 transitions. [2020-10-16 11:39:37,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-16 11:39:37,870 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:37,870 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:37,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-16 11:39:37,871 INFO L429 AbstractCegarLoop]: === Iteration 27 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:37,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:37,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1357008819, now seen corresponding path program 1 times [2020-10-16 11:39:37,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:37,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081316042] [2020-10-16 11:39:37,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:37,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:37,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:37,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081316042] [2020-10-16 11:39:37,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:37,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 11:39:37,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224353590] [2020-10-16 11:39:37,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 11:39:37,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:37,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 11:39:37,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-16 11:39:37,994 INFO L87 Difference]: Start difference. First operand 2170 states and 7789 transitions. Second operand 10 states. [2020-10-16 11:39:38,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:38,541 INFO L93 Difference]: Finished difference Result 3595 states and 12502 transitions. [2020-10-16 11:39:38,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 11:39:38,541 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2020-10-16 11:39:38,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:38,552 INFO L225 Difference]: With dead ends: 3595 [2020-10-16 11:39:38,553 INFO L226 Difference]: Without dead ends: 3478 [2020-10-16 11:39:38,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-16 11:39:38,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3478 states. [2020-10-16 11:39:38,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3478 to 1979. [2020-10-16 11:39:38,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1979 states. [2020-10-16 11:39:38,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1979 states to 1979 states and 7017 transitions. [2020-10-16 11:39:38,622 INFO L78 Accepts]: Start accepts. Automaton has 1979 states and 7017 transitions. Word has length 23 [2020-10-16 11:39:38,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:38,623 INFO L481 AbstractCegarLoop]: Abstraction has 1979 states and 7017 transitions. [2020-10-16 11:39:38,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 11:39:38,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1979 states and 7017 transitions. [2020-10-16 11:39:38,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 11:39:38,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:38,627 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:38,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-16 11:39:38,628 INFO L429 AbstractCegarLoop]: === Iteration 28 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:38,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:38,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1309010247, now seen corresponding path program 1 times [2020-10-16 11:39:38,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:38,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973621278] [2020-10-16 11:39:38,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:38,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:38,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973621278] [2020-10-16 11:39:38,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:38,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 11:39:38,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464449812] [2020-10-16 11:39:38,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 11:39:38,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:38,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 11:39:38,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:39:38,732 INFO L87 Difference]: Start difference. First operand 1979 states and 7017 transitions. Second operand 6 states. [2020-10-16 11:39:38,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:38,891 INFO L93 Difference]: Finished difference Result 2476 states and 8453 transitions. [2020-10-16 11:39:38,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:39:38,891 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-10-16 11:39:38,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:38,898 INFO L225 Difference]: With dead ends: 2476 [2020-10-16 11:39:38,898 INFO L226 Difference]: Without dead ends: 2412 [2020-10-16 11:39:38,899 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-16 11:39:38,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2020-10-16 11:39:38,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2291. [2020-10-16 11:39:38,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2291 states. [2020-10-16 11:39:38,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 8009 transitions. [2020-10-16 11:39:38,954 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 8009 transitions. Word has length 24 [2020-10-16 11:39:38,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:38,954 INFO L481 AbstractCegarLoop]: Abstraction has 2291 states and 8009 transitions. [2020-10-16 11:39:38,954 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 11:39:38,954 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 8009 transitions. [2020-10-16 11:39:38,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 11:39:38,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:38,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:38,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-16 11:39:38,958 INFO L429 AbstractCegarLoop]: === Iteration 29 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:38,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:38,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1793125216, now seen corresponding path program 1 times [2020-10-16 11:39:38,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:38,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728756016] [2020-10-16 11:39:38,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:39,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:39,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728756016] [2020-10-16 11:39:39,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:39,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 11:39:39,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509087795] [2020-10-16 11:39:39,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 11:39:39,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:39,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 11:39:39,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-16 11:39:39,043 INFO L87 Difference]: Start difference. First operand 2291 states and 8009 transitions. Second operand 9 states. [2020-10-16 11:39:39,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:39,238 INFO L93 Difference]: Finished difference Result 3139 states and 10958 transitions. [2020-10-16 11:39:39,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 11:39:39,238 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2020-10-16 11:39:39,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:39,246 INFO L225 Difference]: With dead ends: 3139 [2020-10-16 11:39:39,246 INFO L226 Difference]: Without dead ends: 3115 [2020-10-16 11:39:39,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-16 11:39:39,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3115 states. [2020-10-16 11:39:39,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3115 to 2290. [2020-10-16 11:39:39,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2290 states. [2020-10-16 11:39:39,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2290 states to 2290 states and 8008 transitions. [2020-10-16 11:39:39,288 INFO L78 Accepts]: Start accepts. Automaton has 2290 states and 8008 transitions. Word has length 24 [2020-10-16 11:39:39,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:39,288 INFO L481 AbstractCegarLoop]: Abstraction has 2290 states and 8008 transitions. [2020-10-16 11:39:39,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 11:39:39,288 INFO L276 IsEmpty]: Start isEmpty. Operand 2290 states and 8008 transitions. [2020-10-16 11:39:39,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 11:39:39,291 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:39,291 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:39,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-16 11:39:39,291 INFO L429 AbstractCegarLoop]: === Iteration 30 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:39,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:39,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1041351040, now seen corresponding path program 2 times [2020-10-16 11:39:39,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:39,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140393304] [2020-10-16 11:39:39,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:39,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:39,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140393304] [2020-10-16 11:39:39,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:39,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 11:39:39,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7165036] [2020-10-16 11:39:39,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 11:39:39,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:39,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 11:39:39,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-16 11:39:39,421 INFO L87 Difference]: Start difference. First operand 2290 states and 8008 transitions. Second operand 10 states. [2020-10-16 11:39:39,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:39,820 INFO L93 Difference]: Finished difference Result 3138 states and 10954 transitions. [2020-10-16 11:39:39,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 11:39:39,820 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2020-10-16 11:39:39,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:39,828 INFO L225 Difference]: With dead ends: 3138 [2020-10-16 11:39:39,828 INFO L226 Difference]: Without dead ends: 3114 [2020-10-16 11:39:39,829 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2020-10-16 11:39:39,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3114 states. [2020-10-16 11:39:39,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3114 to 2293. [2020-10-16 11:39:39,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2293 states. [2020-10-16 11:39:39,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2293 states to 2293 states and 8015 transitions. [2020-10-16 11:39:39,873 INFO L78 Accepts]: Start accepts. Automaton has 2293 states and 8015 transitions. Word has length 24 [2020-10-16 11:39:39,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:39,873 INFO L481 AbstractCegarLoop]: Abstraction has 2293 states and 8015 transitions. [2020-10-16 11:39:39,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 11:39:39,873 INFO L276 IsEmpty]: Start isEmpty. Operand 2293 states and 8015 transitions. [2020-10-16 11:39:39,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 11:39:39,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:39,875 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:39,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-16 11:39:39,876 INFO L429 AbstractCegarLoop]: === Iteration 31 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:39,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:39,876 INFO L82 PathProgramCache]: Analyzing trace with hash -106935726, now seen corresponding path program 3 times [2020-10-16 11:39:39,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:39,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015290783] [2020-10-16 11:39:39,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:40,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:40,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015290783] [2020-10-16 11:39:40,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:40,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 11:39:40,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423270919] [2020-10-16 11:39:40,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-16 11:39:40,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:40,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-16 11:39:40,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-16 11:39:40,027 INFO L87 Difference]: Start difference. First operand 2293 states and 8015 transitions. Second operand 11 states. [2020-10-16 11:39:40,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:40,360 INFO L93 Difference]: Finished difference Result 3732 states and 13122 transitions. [2020-10-16 11:39:40,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 11:39:40,361 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 24 [2020-10-16 11:39:40,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:40,370 INFO L225 Difference]: With dead ends: 3732 [2020-10-16 11:39:40,370 INFO L226 Difference]: Without dead ends: 3708 [2020-10-16 11:39:40,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2020-10-16 11:39:40,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3708 states. [2020-10-16 11:39:40,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3708 to 2271. [2020-10-16 11:39:40,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2271 states. [2020-10-16 11:39:40,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2271 states to 2271 states and 7965 transitions. [2020-10-16 11:39:40,417 INFO L78 Accepts]: Start accepts. Automaton has 2271 states and 7965 transitions. Word has length 24 [2020-10-16 11:39:40,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:40,417 INFO L481 AbstractCegarLoop]: Abstraction has 2271 states and 7965 transitions. [2020-10-16 11:39:40,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-16 11:39:40,417 INFO L276 IsEmpty]: Start isEmpty. Operand 2271 states and 7965 transitions. [2020-10-16 11:39:40,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 11:39:40,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:40,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:40,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-16 11:39:40,420 INFO L429 AbstractCegarLoop]: === Iteration 32 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:40,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:40,420 INFO L82 PathProgramCache]: Analyzing trace with hash -408101783, now seen corresponding path program 2 times [2020-10-16 11:39:40,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:40,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927997227] [2020-10-16 11:39:40,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:40,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:40,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927997227] [2020-10-16 11:39:40,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:40,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 11:39:40,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339435090] [2020-10-16 11:39:40,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 11:39:40,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:40,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 11:39:40,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-16 11:39:40,498 INFO L87 Difference]: Start difference. First operand 2271 states and 7965 transitions. Second operand 7 states. [2020-10-16 11:39:40,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:40,751 INFO L93 Difference]: Finished difference Result 2765 states and 9396 transitions. [2020-10-16 11:39:40,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 11:39:40,752 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-10-16 11:39:40,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:40,762 INFO L225 Difference]: With dead ends: 2765 [2020-10-16 11:39:40,763 INFO L226 Difference]: Without dead ends: 2701 [2020-10-16 11:39:40,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-16 11:39:40,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2020-10-16 11:39:40,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 2268. [2020-10-16 11:39:40,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2268 states. [2020-10-16 11:39:40,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2268 states to 2268 states and 7960 transitions. [2020-10-16 11:39:40,828 INFO L78 Accepts]: Start accepts. Automaton has 2268 states and 7960 transitions. Word has length 24 [2020-10-16 11:39:40,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:40,829 INFO L481 AbstractCegarLoop]: Abstraction has 2268 states and 7960 transitions. [2020-10-16 11:39:40,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 11:39:40,829 INFO L276 IsEmpty]: Start isEmpty. Operand 2268 states and 7960 transitions. [2020-10-16 11:39:40,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 11:39:40,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:40,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:40,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-16 11:39:40,834 INFO L429 AbstractCegarLoop]: === Iteration 33 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:40,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:40,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1308579191, now seen corresponding path program 3 times [2020-10-16 11:39:40,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:40,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112246656] [2020-10-16 11:39:40,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:40,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:40,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112246656] [2020-10-16 11:39:40,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:40,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-16 11:39:40,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047073660] [2020-10-16 11:39:40,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 11:39:40,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:40,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 11:39:40,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-16 11:39:40,962 INFO L87 Difference]: Start difference. First operand 2268 states and 7960 transitions. Second operand 8 states. [2020-10-16 11:39:41,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:41,243 INFO L93 Difference]: Finished difference Result 2755 states and 9376 transitions. [2020-10-16 11:39:41,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 11:39:41,244 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2020-10-16 11:39:41,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:41,252 INFO L225 Difference]: With dead ends: 2755 [2020-10-16 11:39:41,252 INFO L226 Difference]: Without dead ends: 2691 [2020-10-16 11:39:41,254 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-16 11:39:41,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2020-10-16 11:39:41,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2262. [2020-10-16 11:39:41,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2262 states. [2020-10-16 11:39:41,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 7946 transitions. [2020-10-16 11:39:41,358 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 7946 transitions. Word has length 24 [2020-10-16 11:39:41,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:41,359 INFO L481 AbstractCegarLoop]: Abstraction has 2262 states and 7946 transitions. [2020-10-16 11:39:41,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 11:39:41,359 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 7946 transitions. [2020-10-16 11:39:41,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 11:39:41,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:41,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:41,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-16 11:39:41,363 INFO L429 AbstractCegarLoop]: === Iteration 34 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:41,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:41,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1370549309, now seen corresponding path program 4 times [2020-10-16 11:39:41,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:41,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551216508] [2020-10-16 11:39:41,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:41,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:41,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551216508] [2020-10-16 11:39:41,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:41,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 11:39:41,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289682702] [2020-10-16 11:39:41,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 11:39:41,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:41,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 11:39:41,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-16 11:39:41,473 INFO L87 Difference]: Start difference. First operand 2262 states and 7946 transitions. Second operand 10 states. [2020-10-16 11:39:41,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:41,690 INFO L93 Difference]: Finished difference Result 2704 states and 9243 transitions. [2020-10-16 11:39:41,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 11:39:41,690 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2020-10-16 11:39:41,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:41,697 INFO L225 Difference]: With dead ends: 2704 [2020-10-16 11:39:41,697 INFO L226 Difference]: Without dead ends: 2640 [2020-10-16 11:39:41,698 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2020-10-16 11:39:41,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2640 states. [2020-10-16 11:39:41,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2640 to 2262. [2020-10-16 11:39:41,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2262 states. [2020-10-16 11:39:41,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 7946 transitions. [2020-10-16 11:39:41,756 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 7946 transitions. Word has length 24 [2020-10-16 11:39:41,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:41,756 INFO L481 AbstractCegarLoop]: Abstraction has 2262 states and 7946 transitions. [2020-10-16 11:39:41,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 11:39:41,757 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 7946 transitions. [2020-10-16 11:39:41,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 11:39:41,760 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:41,760 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:41,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-16 11:39:41,761 INFO L429 AbstractCegarLoop]: === Iteration 35 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:41,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:41,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1607134461, now seen corresponding path program 5 times [2020-10-16 11:39:41,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:41,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224164327] [2020-10-16 11:39:41,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:41,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:41,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224164327] [2020-10-16 11:39:41,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:41,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 11:39:41,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642485306] [2020-10-16 11:39:41,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-16 11:39:41,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:41,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-16 11:39:41,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-16 11:39:41,953 INFO L87 Difference]: Start difference. First operand 2262 states and 7946 transitions. Second operand 13 states. [2020-10-16 11:39:42,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:42,475 INFO L93 Difference]: Finished difference Result 4164 states and 14122 transitions. [2020-10-16 11:39:42,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 11:39:42,476 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 24 [2020-10-16 11:39:42,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:42,485 INFO L225 Difference]: With dead ends: 4164 [2020-10-16 11:39:42,485 INFO L226 Difference]: Without dead ends: 4036 [2020-10-16 11:39:42,486 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-16 11:39:42,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4036 states. [2020-10-16 11:39:42,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4036 to 2451. [2020-10-16 11:39:42,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2451 states. [2020-10-16 11:39:42,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2451 states to 2451 states and 8748 transitions. [2020-10-16 11:39:42,533 INFO L78 Accepts]: Start accepts. Automaton has 2451 states and 8748 transitions. Word has length 24 [2020-10-16 11:39:42,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:42,533 INFO L481 AbstractCegarLoop]: Abstraction has 2451 states and 8748 transitions. [2020-10-16 11:39:42,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-16 11:39:42,533 INFO L276 IsEmpty]: Start isEmpty. Operand 2451 states and 8748 transitions. [2020-10-16 11:39:42,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-16 11:39:42,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:42,536 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:42,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-16 11:39:42,536 INFO L429 AbstractCegarLoop]: === Iteration 36 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:42,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:42,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1497656527, now seen corresponding path program 6 times [2020-10-16 11:39:42,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:42,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444828360] [2020-10-16 11:39:42,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:42,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:42,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444828360] [2020-10-16 11:39:42,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:42,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 11:39:42,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202971374] [2020-10-16 11:39:42,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 11:39:42,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:42,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 11:39:42,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-16 11:39:42,650 INFO L87 Difference]: Start difference. First operand 2451 states and 8748 transitions. Second operand 10 states. [2020-10-16 11:39:42,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:42,946 INFO L93 Difference]: Finished difference Result 3358 states and 11346 transitions. [2020-10-16 11:39:42,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 11:39:42,946 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2020-10-16 11:39:42,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:42,954 INFO L225 Difference]: With dead ends: 3358 [2020-10-16 11:39:42,954 INFO L226 Difference]: Without dead ends: 3294 [2020-10-16 11:39:42,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-10-16 11:39:42,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3294 states. [2020-10-16 11:39:42,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3294 to 2271. [2020-10-16 11:39:42,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2271 states. [2020-10-16 11:39:42,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2271 states to 2271 states and 8062 transitions. [2020-10-16 11:39:42,995 INFO L78 Accepts]: Start accepts. Automaton has 2271 states and 8062 transitions. Word has length 24 [2020-10-16 11:39:42,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:42,996 INFO L481 AbstractCegarLoop]: Abstraction has 2271 states and 8062 transitions. [2020-10-16 11:39:42,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 11:39:42,996 INFO L276 IsEmpty]: Start isEmpty. Operand 2271 states and 8062 transitions. [2020-10-16 11:39:42,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 11:39:42,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:42,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:42,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-16 11:39:42,999 INFO L429 AbstractCegarLoop]: === Iteration 37 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:42,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:42,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1945194585, now seen corresponding path program 1 times [2020-10-16 11:39:42,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:43,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632580417] [2020-10-16 11:39:43,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:43,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:43,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632580417] [2020-10-16 11:39:43,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:43,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-16 11:39:43,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488799806] [2020-10-16 11:39:43,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 11:39:43,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:43,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 11:39:43,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-10-16 11:39:43,168 INFO L87 Difference]: Start difference. First operand 2271 states and 8062 transitions. Second operand 12 states. [2020-10-16 11:39:43,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:43,702 INFO L93 Difference]: Finished difference Result 2789 states and 9626 transitions. [2020-10-16 11:39:43,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 11:39:43,703 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 25 [2020-10-16 11:39:43,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:43,711 INFO L225 Difference]: With dead ends: 2789 [2020-10-16 11:39:43,712 INFO L226 Difference]: Without dead ends: 2742 [2020-10-16 11:39:43,712 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2020-10-16 11:39:43,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2742 states. [2020-10-16 11:39:43,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2742 to 1742. [2020-10-16 11:39:43,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1742 states. [2020-10-16 11:39:43,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1742 states to 1742 states and 6049 transitions. [2020-10-16 11:39:43,761 INFO L78 Accepts]: Start accepts. Automaton has 1742 states and 6049 transitions. Word has length 25 [2020-10-16 11:39:43,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:43,761 INFO L481 AbstractCegarLoop]: Abstraction has 1742 states and 6049 transitions. [2020-10-16 11:39:43,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 11:39:43,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1742 states and 6049 transitions. [2020-10-16 11:39:43,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-16 11:39:43,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:43,765 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:43,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-16 11:39:43,765 INFO L429 AbstractCegarLoop]: === Iteration 38 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:43,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:43,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1461991345, now seen corresponding path program 1 times [2020-10-16 11:39:43,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:43,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143189744] [2020-10-16 11:39:43,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:43,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:43,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143189744] [2020-10-16 11:39:43,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:43,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 11:39:43,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823631829] [2020-10-16 11:39:43,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 11:39:43,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:43,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 11:39:43,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-16 11:39:43,864 INFO L87 Difference]: Start difference. First operand 1742 states and 6049 transitions. Second operand 9 states. [2020-10-16 11:39:44,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:44,240 INFO L93 Difference]: Finished difference Result 2359 states and 7868 transitions. [2020-10-16 11:39:44,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 11:39:44,241 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2020-10-16 11:39:44,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:44,250 INFO L225 Difference]: With dead ends: 2359 [2020-10-16 11:39:44,251 INFO L226 Difference]: Without dead ends: 2337 [2020-10-16 11:39:44,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-16 11:39:44,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2337 states. [2020-10-16 11:39:44,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2337 to 1741. [2020-10-16 11:39:44,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1741 states. [2020-10-16 11:39:44,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1741 states to 1741 states and 6048 transitions. [2020-10-16 11:39:44,327 INFO L78 Accepts]: Start accepts. Automaton has 1741 states and 6048 transitions. Word has length 26 [2020-10-16 11:39:44,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:44,327 INFO L481 AbstractCegarLoop]: Abstraction has 1741 states and 6048 transitions. [2020-10-16 11:39:44,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 11:39:44,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1741 states and 6048 transitions. [2020-10-16 11:39:44,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-16 11:39:44,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:44,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:44,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-16 11:39:44,334 INFO L429 AbstractCegarLoop]: === Iteration 39 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:44,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:44,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1932498543, now seen corresponding path program 2 times [2020-10-16 11:39:44,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:44,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941930334] [2020-10-16 11:39:44,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:44,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:44,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941930334] [2020-10-16 11:39:44,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:44,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 11:39:44,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219138263] [2020-10-16 11:39:44,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 11:39:44,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:44,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 11:39:44,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-16 11:39:44,509 INFO L87 Difference]: Start difference. First operand 1741 states and 6048 transitions. Second operand 10 states. [2020-10-16 11:39:44,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:44,922 INFO L93 Difference]: Finished difference Result 2355 states and 7860 transitions. [2020-10-16 11:39:44,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 11:39:44,922 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-10-16 11:39:44,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:44,929 INFO L225 Difference]: With dead ends: 2355 [2020-10-16 11:39:44,929 INFO L226 Difference]: Without dead ends: 2333 [2020-10-16 11:39:44,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2020-10-16 11:39:44,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2333 states. [2020-10-16 11:39:44,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2333 to 1744. [2020-10-16 11:39:44,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1744 states. [2020-10-16 11:39:44,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1744 states to 1744 states and 6055 transitions. [2020-10-16 11:39:44,972 INFO L78 Accepts]: Start accepts. Automaton has 1744 states and 6055 transitions. Word has length 26 [2020-10-16 11:39:44,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:44,972 INFO L481 AbstractCegarLoop]: Abstraction has 1744 states and 6055 transitions. [2020-10-16 11:39:44,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 11:39:44,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1744 states and 6055 transitions. [2020-10-16 11:39:44,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-16 11:39:44,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:44,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:44,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-16 11:39:44,976 INFO L429 AbstractCegarLoop]: === Iteration 40 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:44,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:44,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1870528425, now seen corresponding path program 3 times [2020-10-16 11:39:44,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:44,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073415471] [2020-10-16 11:39:44,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:45,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:45,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073415471] [2020-10-16 11:39:45,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:45,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-16 11:39:45,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958275574] [2020-10-16 11:39:45,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 11:39:45,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:45,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 11:39:45,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-16 11:39:45,138 INFO L87 Difference]: Start difference. First operand 1744 states and 6055 transitions. Second operand 12 states. [2020-10-16 11:39:45,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:45,463 INFO L93 Difference]: Finished difference Result 2375 states and 7965 transitions. [2020-10-16 11:39:45,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 11:39:45,463 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 26 [2020-10-16 11:39:45,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:45,469 INFO L225 Difference]: With dead ends: 2375 [2020-10-16 11:39:45,469 INFO L226 Difference]: Without dead ends: 2287 [2020-10-16 11:39:45,470 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2020-10-16 11:39:45,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2287 states. [2020-10-16 11:39:45,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2287 to 1491. [2020-10-16 11:39:45,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1491 states. [2020-10-16 11:39:45,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 5039 transitions. [2020-10-16 11:39:45,497 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 5039 transitions. Word has length 26 [2020-10-16 11:39:45,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:45,497 INFO L481 AbstractCegarLoop]: Abstraction has 1491 states and 5039 transitions. [2020-10-16 11:39:45,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 11:39:45,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 5039 transitions. [2020-10-16 11:39:45,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-16 11:39:45,499 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:45,499 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:45,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-16 11:39:45,499 INFO L429 AbstractCegarLoop]: === Iteration 41 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:45,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:45,500 INFO L82 PathProgramCache]: Analyzing trace with hash 443766965, now seen corresponding path program 4 times [2020-10-16 11:39:45,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:45,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413519362] [2020-10-16 11:39:45,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:45,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:45,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:45,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413519362] [2020-10-16 11:39:45,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:45,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-16 11:39:45,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173176752] [2020-10-16 11:39:45,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-16 11:39:45,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:45,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-16 11:39:45,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-16 11:39:45,659 INFO L87 Difference]: Start difference. First operand 1491 states and 5039 transitions. Second operand 12 states. [2020-10-16 11:39:46,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:46,049 INFO L93 Difference]: Finished difference Result 1544 states and 5003 transitions. [2020-10-16 11:39:46,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 11:39:46,050 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 26 [2020-10-16 11:39:46,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:46,054 INFO L225 Difference]: With dead ends: 1544 [2020-10-16 11:39:46,054 INFO L226 Difference]: Without dead ends: 1500 [2020-10-16 11:39:46,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=257, Unknown=0, NotChecked=0, Total=380 [2020-10-16 11:39:46,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2020-10-16 11:39:46,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 885. [2020-10-16 11:39:46,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 885 states. [2020-10-16 11:39:46,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 3033 transitions. [2020-10-16 11:39:46,071 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 3033 transitions. Word has length 26 [2020-10-16 11:39:46,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:46,072 INFO L481 AbstractCegarLoop]: Abstraction has 885 states and 3033 transitions. [2020-10-16 11:39:46,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-16 11:39:46,072 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 3033 transitions. [2020-10-16 11:39:46,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-16 11:39:46,073 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:46,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:46,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-16 11:39:46,074 INFO L429 AbstractCegarLoop]: === Iteration 42 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:46,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:46,074 INFO L82 PathProgramCache]: Analyzing trace with hash -416507732, now seen corresponding path program 1 times [2020-10-16 11:39:46,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:46,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379763834] [2020-10-16 11:39:46,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:46,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:46,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379763834] [2020-10-16 11:39:46,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:46,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 11:39:46,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704846546] [2020-10-16 11:39:46,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 11:39:46,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:46,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 11:39:46,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-16 11:39:46,158 INFO L87 Difference]: Start difference. First operand 885 states and 3033 transitions. Second operand 8 states. [2020-10-16 11:39:46,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:46,303 INFO L93 Difference]: Finished difference Result 885 states and 3029 transitions. [2020-10-16 11:39:46,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 11:39:46,304 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-10-16 11:39:46,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:46,307 INFO L225 Difference]: With dead ends: 885 [2020-10-16 11:39:46,307 INFO L226 Difference]: Without dead ends: 879 [2020-10-16 11:39:46,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-16 11:39:46,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2020-10-16 11:39:46,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 879. [2020-10-16 11:39:46,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2020-10-16 11:39:46,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 3010 transitions. [2020-10-16 11:39:46,331 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 3010 transitions. Word has length 41 [2020-10-16 11:39:46,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:46,332 INFO L481 AbstractCegarLoop]: Abstraction has 879 states and 3010 transitions. [2020-10-16 11:39:46,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 11:39:46,332 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 3010 transitions. [2020-10-16 11:39:46,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-16 11:39:46,335 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:46,336 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:46,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-16 11:39:46,336 INFO L429 AbstractCegarLoop]: === Iteration 43 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:46,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:46,337 INFO L82 PathProgramCache]: Analyzing trace with hash 829092404, now seen corresponding path program 1 times [2020-10-16 11:39:46,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:46,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14682284] [2020-10-16 11:39:46,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:46,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:39:46,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:39:46,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14682284] [2020-10-16 11:39:46,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:39:46,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 11:39:46,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596872997] [2020-10-16 11:39:46,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 11:39:46,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:39:46,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 11:39:46,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-16 11:39:46,438 INFO L87 Difference]: Start difference. First operand 879 states and 3010 transitions. Second operand 8 states. [2020-10-16 11:39:46,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:39:46,593 INFO L93 Difference]: Finished difference Result 879 states and 3006 transitions. [2020-10-16 11:39:46,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 11:39:46,594 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-10-16 11:39:46,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:39:46,596 INFO L225 Difference]: With dead ends: 879 [2020-10-16 11:39:46,597 INFO L226 Difference]: Without dead ends: 819 [2020-10-16 11:39:46,597 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-16 11:39:46,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2020-10-16 11:39:46,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 819. [2020-10-16 11:39:46,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 819 states. [2020-10-16 11:39:46,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 2784 transitions. [2020-10-16 11:39:46,615 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 2784 transitions. Word has length 41 [2020-10-16 11:39:46,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:39:46,615 INFO L481 AbstractCegarLoop]: Abstraction has 819 states and 2784 transitions. [2020-10-16 11:39:46,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 11:39:46,615 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 2784 transitions. [2020-10-16 11:39:46,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-16 11:39:46,618 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:39:46,618 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:39:46,618 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-16 11:39:46,618 INFO L429 AbstractCegarLoop]: === Iteration 44 === [thread0Err1INUSE_VIOLATION, thread0Err0INUSE_VIOLATION, thread0Err4INUSE_VIOLATION, thread0Err3INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATION, thread0Thread1of1ForFork3Err8INUSE_VIOLATION, thread0Thread1of1ForFork3Err9INUSE_VIOLATION, thread0Thread1of1ForFork3Err7INUSE_VIOLATION, thread0Thread1of1ForFork3Err6INUSE_VIOLATION, thread0Thread1of1ForFork3Err10INUSE_VIOLATION]=== [2020-10-16 11:39:46,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:39:46,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1378914744, now seen corresponding path program 1 times [2020-10-16 11:39:46,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:39:46,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628708646] [2020-10-16 11:39:46,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:39:46,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 11:39:46,637 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 11:39:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 11:39:46,653 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 11:39:46,695 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 11:39:46,696 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 11:39:46,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-16 11:39:46,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:39:46 BasicIcfg [2020-10-16 11:39:46,809 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:39:46,811 INFO L168 Benchmark]: Toolchain (without parser) took 30496.56 ms. Allocated memory was 140.0 MB in the beginning and 795.3 MB in the end (delta: 655.4 MB). Free memory was 100.5 MB in the beginning and 308.8 MB in the end (delta: -208.3 MB). Peak memory consumption was 447.1 MB. Max. memory is 7.1 GB. [2020-10-16 11:39:46,811 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-16 11:39:46,812 INFO L168 Benchmark]: CACSL2BoogieTranslator took 886.11 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 100.5 MB in the beginning and 121.5 MB in the end (delta: -21.0 MB). Peak memory consumption was 47.1 MB. Max. memory is 7.1 GB. [2020-10-16 11:39:46,812 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.85 ms. Allocated memory is still 202.9 MB. Free memory was 121.5 MB in the beginning and 119.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-16 11:39:46,812 INFO L168 Benchmark]: Boogie Preprocessor took 30.66 ms. Allocated memory is still 202.9 MB. Free memory was 119.6 MB in the beginning and 117.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-16 11:39:46,813 INFO L168 Benchmark]: RCFGBuilder took 493.59 ms. Allocated memory was 202.9 MB in the beginning and 237.0 MB in the end (delta: 34.1 MB). Free memory was 117.7 MB in the beginning and 208.1 MB in the end (delta: -90.4 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. [2020-10-16 11:39:46,813 INFO L168 Benchmark]: TraceAbstraction took 29023.78 ms. Allocated memory was 237.0 MB in the beginning and 795.3 MB in the end (delta: 558.4 MB). Free memory was 208.1 MB in the beginning and 308.8 MB in the end (delta: -100.7 MB). Peak memory consumption was 457.7 MB. Max. memory is 7.1 GB. [2020-10-16 11:39:46,815 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 886.11 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 100.5 MB in the beginning and 121.5 MB in the end (delta: -21.0 MB). Peak memory consumption was 47.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 56.85 ms. Allocated memory is still 202.9 MB. Free memory was 121.5 MB in the beginning and 119.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.66 ms. Allocated memory is still 202.9 MB. Free memory was 119.6 MB in the beginning and 117.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 493.59 ms. Allocated memory was 202.9 MB in the beginning and 237.0 MB in the end (delta: 34.1 MB). Free memory was 117.7 MB in the beginning and 208.1 MB in the end (delta: -90.4 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29023.78 ms. Allocated memory was 237.0 MB in the beginning and 795.3 MB in the end (delta: 558.4 MB). Free memory was 208.1 MB in the beginning and 308.8 MB in the end (delta: -100.7 MB). Peak memory consumption was 457.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2190 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 595 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.3s, 172 PlacesBefore, 101 PlacesAfterwards, 243 TransitionsBefore, 173 TransitionsAfterwards, 4038 CoEnabledTransitionPairs, 5 FixpointIterations, 23 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 76 TotalNumberOfCompositions, 47722 MoverChecksTotal - CounterExampleResult [Line: 1088]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1089] 0 char *v; [L1122] 0 pthread_t t; [L1123] FCALL, FORK 0 pthread_create(&t, 0, thread0, 0) VAL [arg={0:0}, v={0:0}] [L1107] 1 pthread_t t1, t2, t3, t4, t5; [L1108] FCALL, FORK 1 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={0:0}] [L1109] 1 \read(t1) VAL [\read(t1)=0, arg={0:0}, arg={0:0}, arg={0:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={0:0}] [L1124] 0 \read(t) VAL [\read(t1)=0, arg={0:0}, arg={0:0}, arg={0:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={0:0}] [L1092] 2 v = malloc(sizeof(char)) [L1093] 2 return 0; [L1109] FCALL, JOIN 2 pthread_join(t1, 0) VAL [\read(t1)=0, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1110] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1097] 3 v[0] = 'X' [L1098] 3 return 0; [L1111] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1112] FCALL, FORK 1 pthread_create(&t4, 0, thread2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1113] FCALL, FORK 1 pthread_create(&t5, 0, thread2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1114] 1 \read(t2) VAL [\read(t2)=1, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1114] FCALL, JOIN 3 pthread_join(t2, 0) VAL [\read(t2)=1, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1115] 1 \read(t3) VAL [\read(t3)=2, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1097] 6 v[0] = 'X' [L1098] 6 return 0; [L1097] 5 v[0] = 'X' [L1098] 5 return 0; [L1102] 4 v[0] = 'Y' [L1103] 4 return 0; [L1115] FCALL, JOIN 4 pthread_join(t3, 0) VAL [\read(t3)=2, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1116] 1 \read(t4) VAL [\read(t4)=3, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1116] FCALL, JOIN 5 pthread_join(t4, 0) VAL [\read(t4)=3, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1117] 1 \read(t5) VAL [\read(t5)=4, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1117] FCALL, JOIN 6 pthread_join(t5, 0) VAL [\read(t5)=4, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, t1={8:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={12:0}, v={6:0}] [L1118] 1 return 0; [L1118] 1 return 0; [L1118] 1 return 0; [L1118] 1 return 0; [L1118] 1 return 0; [L1118] 1 return 0; [L1124] FCALL, JOIN 1 pthread_join(t, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, v={6:0}] [L1125] 0 v[0] [L1088] COND TRUE 0 !expression [L1088] 0 __VERIFIER_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={6:0}, v={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.6s, OverallIterations: 44, TraceHistogramMax: 1, AutomataDifference: 15.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 4657 SDtfs, 7459 SDslu, 14204 SDs, 0 SdLazy, 8536 SolverSat, 1019 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 534 GetRequests, 45 SyntacticMatches, 5 SemanticMatches, 484 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4131occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.1s AutomataMinimizationTime, 43 MinimizatonAttempts, 43210 StatesRemovedByMinimization, 41 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 984 NumberOfCodeBlocks, 984 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 900 ConstructedInterpolants, 0 QuantifiedInterpolants, 216502 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 43 InterpolantComputations, 43 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...