/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 23:49:39,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 23:49:39,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 23:49:39,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-01-06 23:49:39,246 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 23:49:39,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 23:49:39,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 23:49:39,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 23:49:39,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 23:49:39,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 23:49:39,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 23:49:39,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 23:49:39,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 23:49:39,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 23:49:39,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 23:49:39,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 23:49:39,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 23:49:39,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 23:49:39,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 23:49:39,323 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 23:49:39,324 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 23:49:39,375 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 23:49:39,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 23:49:39,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 23:49:39,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 23:49:39,378 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 23:49:39,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 23:49:39,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 23:49:39,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 23:49:39,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 23:49:39,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 23:49:39,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 23:49:39,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 23:49:39,379 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 23:49:39,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 23:49:39,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 23:49:39,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 23:49:39,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 23:49:39,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 23:49:39,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 23:49:39,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 23:49:39,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 23:49:39,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 23:49:39,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 23:49:39,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 23:49:39,382 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 23:49:39,382 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 23:49:39,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 23:49:39,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 23:49:39,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 23:49:39,845 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 23:49:39,846 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 23:49:39,847 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-2.i [2021-01-06 23:49:39,930 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8716dbd2a/9add91e1f2674985a178231912fb595c/FLAG775112905 [2021-01-06 23:49:40,630 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 23:49:40,631 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-2.i [2021-01-06 23:49:40,652 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8716dbd2a/9add91e1f2674985a178231912fb595c/FLAG775112905 [2021-01-06 23:49:40,936 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8716dbd2a/9add91e1f2674985a178231912fb595c [2021-01-06 23:49:40,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 23:49:40,943 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 23:49:40,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 23:49:40,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 23:49:40,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 23:49:40,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:49:40" (1/1) ... [2021-01-06 23:49:40,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@637f979e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:40, skipping insertion in model container [2021-01-06 23:49:40,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:49:40" (1/1) ... [2021-01-06 23:49:40,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 23:49:41,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 23:49:41,423 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-2.i[30035,30048] left hand side expression in assignment: lhs: VariableLHS[~t~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~n~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~i~0,] [2021-01-06 23:49:41,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:49:41,476 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 23:49:41,554 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-2.i[30035,30048] left hand side expression in assignment: lhs: VariableLHS[~t~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~n~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~i~0,] [2021-01-06 23:49:41,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:49:41,709 INFO L208 MainTranslator]: Completed translation [2021-01-06 23:49:41,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:41 WrapperNode [2021-01-06 23:49:41,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 23:49:41,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 23:49:41,713 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 23:49:41,714 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 23:49:41,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:41" (1/1) ... [2021-01-06 23:49:41,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:41" (1/1) ... [2021-01-06 23:49:41,785 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 23:49:41,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 23:49:41,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 23:49:41,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 23:49:41,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:41" (1/1) ... [2021-01-06 23:49:41,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:41" (1/1) ... [2021-01-06 23:49:41,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:41" (1/1) ... [2021-01-06 23:49:41,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:41" (1/1) ... [2021-01-06 23:49:41,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:41" (1/1) ... [2021-01-06 23:49:41,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:41" (1/1) ... [2021-01-06 23:49:41,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:41" (1/1) ... [2021-01-06 23:49:41,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 23:49:41,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 23:49:41,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 23:49:41,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 23:49:41,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 23:49:41,932 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-01-06 23:49:41,932 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-01-06 23:49:41,933 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-01-06 23:49:41,933 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-01-06 23:49:41,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 23:49:41,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 23:49:41,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 23:49:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 23:49:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 23:49:41,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 23:49:41,938 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-06 23:49:42,365 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 23:49:42,366 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-01-06 23:49:42,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:49:42 BoogieIcfgContainer [2021-01-06 23:49:42,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 23:49:42,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 23:49:42,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 23:49:42,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 23:49:42,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:49:40" (1/3) ... [2021-01-06 23:49:42,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a25f69b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:49:42, skipping insertion in model container [2021-01-06 23:49:42,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:41" (2/3) ... [2021-01-06 23:49:42,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a25f69b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:49:42, skipping insertion in model container [2021-01-06 23:49:42,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:49:42" (3/3) ... [2021-01-06 23:49:42,379 INFO L111 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-2.i [2021-01-06 23:49:42,387 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-06 23:49:42,387 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 23:49:42,393 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 23:49:42,394 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-06 23:49:42,436 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,437 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,437 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,437 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,438 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,438 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,438 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,438 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,439 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,439 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,439 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,439 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,440 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,440 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,441 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,441 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,442 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,442 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,445 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,446 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,446 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,446 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,446 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,447 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,447 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,447 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,448 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,448 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,448 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,448 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,449 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,449 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,449 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,449 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,458 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,458 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,459 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,462 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,462 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,472 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,475 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,475 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,476 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,476 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,476 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:42,482 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:49:42,509 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-06 23:49:42,541 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:49:42,541 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:49:42,541 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:49:42,541 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:49:42,542 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:49:42,542 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:49:42,542 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:49:42,542 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:49:42,558 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:49:42,562 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 63 transitions, 136 flow [2021-01-06 23:49:42,566 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 63 transitions, 136 flow [2021-01-06 23:49:42,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 63 transitions, 136 flow [2021-01-06 23:49:42,622 INFO L129 PetriNetUnfolder]: 4/73 cut-off events. [2021-01-06 23:49:42,622 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-01-06 23:49:42,628 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 73 events. 4/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 90 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 53. Up to 4 conditions per place. [2021-01-06 23:49:42,631 INFO L116 LiptonReduction]: Number of co-enabled transitions 640 [2021-01-06 23:49:44,837 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-01-06 23:49:45,044 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-01-06 23:49:45,667 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-01-06 23:49:46,144 WARN L197 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 111 [2021-01-06 23:49:46,329 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-01-06 23:49:46,804 WARN L197 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 114 [2021-01-06 23:49:47,000 WARN L197 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-01-06 23:49:47,004 INFO L131 LiptonReduction]: Checked pairs total: 554 [2021-01-06 23:49:47,004 INFO L133 LiptonReduction]: Total number of compositions: 59 [2021-01-06 23:49:47,011 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 12 transitions, 34 flow [2021-01-06 23:49:47,025 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2021-01-06 23:49:47,028 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2021-01-06 23:49:47,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-01-06 23:49:47,034 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:47,035 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-01-06 23:49:47,035 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:49:47,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:47,048 INFO L82 PathProgramCache]: Analyzing trace with hash 245417, now seen corresponding path program 1 times [2021-01-06 23:49:47,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:47,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678907004] [2021-01-06 23:49:47,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:47,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:49:47,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678907004] [2021-01-06 23:49:47,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:49:47,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-01-06 23:49:47,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697540379] [2021-01-06 23:49:47,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:49:47,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:47,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:49:47,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:49:47,400 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2021-01-06 23:49:47,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:47,449 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2021-01-06 23:49:47,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:49:47,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-01-06 23:49:47,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:47,463 INFO L225 Difference]: With dead ends: 35 [2021-01-06 23:49:47,463 INFO L226 Difference]: Without dead ends: 31 [2021-01-06 23:49:47,465 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:49:47,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-01-06 23:49:47,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-01-06 23:49:47,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-01-06 23:49:47,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2021-01-06 23:49:47,521 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3 [2021-01-06 23:49:47,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:47,523 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2021-01-06 23:49:47,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:49:47,529 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2021-01-06 23:49:47,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-06 23:49:47,530 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:47,530 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:47,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 23:49:47,531 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:49:47,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:47,535 INFO L82 PathProgramCache]: Analyzing trace with hash -998701213, now seen corresponding path program 1 times [2021-01-06 23:49:47,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:47,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151868035] [2021-01-06 23:49:47,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:47,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:47,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:49:47,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151868035] [2021-01-06 23:49:47,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:49:47,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:49:47,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620949835] [2021-01-06 23:49:47,643 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 23:49:47,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:47,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 23:49:47,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:49:47,645 INFO L87 Difference]: Start difference. First operand 31 states and 51 transitions. Second operand 6 states. [2021-01-06 23:49:47,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:47,689 INFO L93 Difference]: Finished difference Result 26 states and 42 transitions. [2021-01-06 23:49:47,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:49:47,691 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2021-01-06 23:49:47,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:47,692 INFO L225 Difference]: With dead ends: 26 [2021-01-06 23:49:47,692 INFO L226 Difference]: Without dead ends: 24 [2021-01-06 23:49:47,693 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:49:47,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-01-06 23:49:47,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-01-06 23:49:47,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-01-06 23:49:47,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 39 transitions. [2021-01-06 23:49:47,698 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 39 transitions. Word has length 7 [2021-01-06 23:49:47,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:47,698 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 39 transitions. [2021-01-06 23:49:47,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 23:49:47,698 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2021-01-06 23:49:47,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-06 23:49:47,699 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:47,699 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:47,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 23:49:47,700 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:49:47,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:47,700 INFO L82 PathProgramCache]: Analyzing trace with hash -894975147, now seen corresponding path program 1 times [2021-01-06 23:49:47,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:47,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272792302] [2021-01-06 23:49:47,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 23:49:47,738 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 23:49:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 23:49:47,766 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 23:49:47,804 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 23:49:47,804 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 23:49:47,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 23:49:47,805 WARN L342 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-01-06 23:49:47,806 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-01-06 23:49:47,818 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,819 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,819 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,819 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,819 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,819 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,819 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,820 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,820 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,820 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,820 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,820 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,821 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,821 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,821 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,821 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,821 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,822 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,822 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,822 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,822 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,822 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,822 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,823 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,823 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,823 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,823 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,823 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,824 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,824 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,824 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,825 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,825 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,825 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,825 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,825 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,826 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,826 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,826 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,826 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,826 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,826 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,827 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,827 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,827 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,827 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,827 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,828 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,828 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,828 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,828 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,829 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,829 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,829 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,829 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,829 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,829 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,830 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,830 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,830 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,830 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,830 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,830 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,831 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,831 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,831 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,831 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,831 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,832 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,832 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,832 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,833 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,833 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,835 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,836 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,836 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,836 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,836 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,838 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,838 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,838 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,838 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,838 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,839 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,840 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,840 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,841 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,841 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,841 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,841 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:47,842 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:49:47,843 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-01-06 23:49:47,844 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:49:47,844 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:49:47,845 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:49:47,845 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:49:47,845 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:49:47,845 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:49:47,845 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:49:47,845 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:49:47,848 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:49:47,848 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 80 transitions, 184 flow [2021-01-06 23:49:47,849 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 80 transitions, 184 flow [2021-01-06 23:49:47,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 80 transitions, 184 flow [2021-01-06 23:49:47,873 INFO L129 PetriNetUnfolder]: 5/94 cut-off events. [2021-01-06 23:49:47,874 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-01-06 23:49:47,875 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 94 events. 5/94 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 126 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 103. Up to 6 conditions per place. [2021-01-06 23:49:47,878 INFO L116 LiptonReduction]: Number of co-enabled transitions 980 [2021-01-06 23:49:50,648 WARN L197 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-01-06 23:49:50,769 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-01-06 23:49:51,030 WARN L197 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-01-06 23:49:51,157 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-01-06 23:49:51,324 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-01-06 23:49:51,479 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-01-06 23:49:51,653 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-01-06 23:49:51,827 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-01-06 23:49:51,831 INFO L131 LiptonReduction]: Checked pairs total: 1390 [2021-01-06 23:49:51,831 INFO L133 LiptonReduction]: Total number of compositions: 70 [2021-01-06 23:49:51,831 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 66 flow [2021-01-06 23:49:51,845 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 224 states. [2021-01-06 23:49:51,845 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2021-01-06 23:49:51,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-01-06 23:49:51,846 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:51,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-01-06 23:49:51,847 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:49:51,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:51,847 INFO L82 PathProgramCache]: Analyzing trace with hash 410870, now seen corresponding path program 1 times [2021-01-06 23:49:51,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:51,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373812550] [2021-01-06 23:49:51,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:51,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:49:51,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373812550] [2021-01-06 23:49:51,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:49:51,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-01-06 23:49:51,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488575792] [2021-01-06 23:49:51,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:49:51,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:51,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:49:51,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:49:51,911 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 3 states. [2021-01-06 23:49:51,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:51,972 INFO L93 Difference]: Finished difference Result 185 states and 459 transitions. [2021-01-06 23:49:51,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:49:51,972 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-01-06 23:49:51,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:51,982 INFO L225 Difference]: With dead ends: 185 [2021-01-06 23:49:51,982 INFO L226 Difference]: Without dead ends: 171 [2021-01-06 23:49:51,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:49:51,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-01-06 23:49:52,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2021-01-06 23:49:52,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2021-01-06 23:49:52,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 418 transitions. [2021-01-06 23:49:52,014 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 418 transitions. Word has length 3 [2021-01-06 23:49:52,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:52,014 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 418 transitions. [2021-01-06 23:49:52,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:49:52,014 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 418 transitions. [2021-01-06 23:49:52,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:49:52,015 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:52,015 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:52,015 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 23:49:52,015 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:49:52,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:52,016 INFO L82 PathProgramCache]: Analyzing trace with hash 806488971, now seen corresponding path program 1 times [2021-01-06 23:49:52,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:52,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446799515] [2021-01-06 23:49:52,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:52,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:52,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:49:52,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446799515] [2021-01-06 23:49:52,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:49:52,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 23:49:52,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055962798] [2021-01-06 23:49:52,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:49:52,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:52,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:49:52,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:49:52,098 INFO L87 Difference]: Start difference. First operand 171 states and 418 transitions. Second operand 7 states. [2021-01-06 23:49:52,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:52,266 INFO L93 Difference]: Finished difference Result 225 states and 491 transitions. [2021-01-06 23:49:52,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 23:49:52,267 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2021-01-06 23:49:52,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:52,270 INFO L225 Difference]: With dead ends: 225 [2021-01-06 23:49:52,270 INFO L226 Difference]: Without dead ends: 221 [2021-01-06 23:49:52,271 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-01-06 23:49:52,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-01-06 23:49:52,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 162. [2021-01-06 23:49:52,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2021-01-06 23:49:52,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 399 transitions. [2021-01-06 23:49:52,294 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 399 transitions. Word has length 9 [2021-01-06 23:49:52,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:52,295 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 399 transitions. [2021-01-06 23:49:52,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:49:52,295 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 399 transitions. [2021-01-06 23:49:52,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 23:49:52,296 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:52,297 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:52,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 23:49:52,297 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:49:52,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:52,298 INFO L82 PathProgramCache]: Analyzing trace with hash 827958856, now seen corresponding path program 1 times [2021-01-06 23:49:52,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:52,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020806316] [2021-01-06 23:49:52,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:52,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:49:52,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020806316] [2021-01-06 23:49:52,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965983] [2021-01-06 23:49:52,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:49:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:52,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 23:49:52,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:49:52,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 23:49:52,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:49:52,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2021-01-06 23:49:52,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217580920] [2021-01-06 23:49:52,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:49:52,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:52,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:49:52,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-01-06 23:49:52,734 INFO L87 Difference]: Start difference. First operand 162 states and 399 transitions. Second operand 5 states. [2021-01-06 23:49:52,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:52,860 INFO L93 Difference]: Finished difference Result 189 states and 423 transitions. [2021-01-06 23:49:52,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:49:52,860 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-01-06 23:49:52,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:52,863 INFO L225 Difference]: With dead ends: 189 [2021-01-06 23:49:52,863 INFO L226 Difference]: Without dead ends: 185 [2021-01-06 23:49:52,864 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-01-06 23:49:52,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-01-06 23:49:52,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 153. [2021-01-06 23:49:52,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2021-01-06 23:49:52,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 367 transitions. [2021-01-06 23:49:52,880 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 367 transitions. Word has length 13 [2021-01-06 23:49:52,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:52,881 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 367 transitions. [2021-01-06 23:49:52,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:49:52,882 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 367 transitions. [2021-01-06 23:49:52,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-01-06 23:49:52,883 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:52,884 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:53,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-01-06 23:49:53,099 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:49:53,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:53,101 INFO L82 PathProgramCache]: Analyzing trace with hash -105954365, now seen corresponding path program 1 times [2021-01-06 23:49:53,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:53,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209076736] [2021-01-06 23:49:53,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 23:49:53,147 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 23:49:53,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 23:49:53,196 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 23:49:53,211 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 23:49:53,212 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 23:49:53,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 23:49:53,217 WARN L342 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-01-06 23:49:53,218 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-01-06 23:49:53,243 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,243 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,243 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,243 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,243 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,244 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,244 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,244 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,244 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,244 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,244 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,245 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,245 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,245 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,245 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,245 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,245 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,246 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,246 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,246 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,246 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,246 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,246 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,247 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,247 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,247 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,247 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,247 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,247 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,247 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,248 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,248 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,248 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,248 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,248 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,248 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,248 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,249 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,249 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,249 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,249 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,249 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,251 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,251 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,252 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,252 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,252 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,252 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,252 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,252 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,252 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,253 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,253 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,253 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,253 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,254 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,254 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,254 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,254 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,255 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,255 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,256 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,256 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,256 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,256 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,257 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,257 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,262 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,263 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,263 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,263 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,263 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,263 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,263 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,264 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,264 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,264 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,264 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,264 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,264 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,264 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,265 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,266 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,266 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,266 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,266 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,266 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,266 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,266 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,267 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,267 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,267 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,267 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,268 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,269 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,269 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,269 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,269 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,270 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,271 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,272 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,272 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,272 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,272 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,273 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,274 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,274 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,274 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,275 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,276 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,277 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,277 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,277 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,277 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,277 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,279 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,279 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,284 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,284 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:53,288 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:49:53,289 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-01-06 23:49:53,290 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:49:53,290 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:49:53,290 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:49:53,290 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:49:53,290 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:49:53,291 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:49:53,291 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:49:53,291 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:49:53,295 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:49:53,296 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 97 transitions, 236 flow [2021-01-06 23:49:53,296 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 97 transitions, 236 flow [2021-01-06 23:49:53,296 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 97 transitions, 236 flow [2021-01-06 23:49:53,356 INFO L129 PetriNetUnfolder]: 6/115 cut-off events. [2021-01-06 23:49:53,356 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-01-06 23:49:53,358 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 115 events. 6/115 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 171 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 129. Up to 8 conditions per place. [2021-01-06 23:49:53,362 INFO L116 LiptonReduction]: Number of co-enabled transitions 1380 [2021-01-06 23:49:55,113 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-01-06 23:49:55,259 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-01-06 23:49:56,898 WARN L197 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2021-01-06 23:49:57,048 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-01-06 23:49:57,444 WARN L197 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2021-01-06 23:49:57,629 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-01-06 23:49:57,634 INFO L131 LiptonReduction]: Checked pairs total: 1830 [2021-01-06 23:49:57,635 INFO L133 LiptonReduction]: Total number of compositions: 86 [2021-01-06 23:49:57,635 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 27 transitions, 96 flow [2021-01-06 23:49:57,676 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 683 states. [2021-01-06 23:49:57,676 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states. [2021-01-06 23:49:57,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-01-06 23:49:57,678 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:57,678 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-01-06 23:49:57,678 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:49:57,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:57,679 INFO L82 PathProgramCache]: Analyzing trace with hash 608948, now seen corresponding path program 1 times [2021-01-06 23:49:57,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:57,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174772976] [2021-01-06 23:49:57,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:57,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:49:57,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174772976] [2021-01-06 23:49:57,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:49:57,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-01-06 23:49:57,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22013702] [2021-01-06 23:49:57,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:49:57,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:57,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:49:57,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:49:57,763 INFO L87 Difference]: Start difference. First operand 683 states. Second operand 3 states. [2021-01-06 23:49:57,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:57,817 INFO L93 Difference]: Finished difference Result 600 states and 1886 transitions. [2021-01-06 23:49:57,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:49:57,817 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-01-06 23:49:57,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:57,829 INFO L225 Difference]: With dead ends: 600 [2021-01-06 23:49:57,829 INFO L226 Difference]: Without dead ends: 559 [2021-01-06 23:49:57,834 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:49:57,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2021-01-06 23:49:57,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2021-01-06 23:49:57,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2021-01-06 23:49:57,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 1737 transitions. [2021-01-06 23:49:57,900 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 1737 transitions. Word has length 3 [2021-01-06 23:49:57,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:57,900 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 1737 transitions. [2021-01-06 23:49:57,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:49:57,900 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 1737 transitions. [2021-01-06 23:49:57,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:49:57,901 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:57,901 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:57,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 23:49:57,902 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:49:57,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:57,902 INFO L82 PathProgramCache]: Analyzing trace with hash -242150196, now seen corresponding path program 1 times [2021-01-06 23:49:57,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:57,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497851279] [2021-01-06 23:49:57,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:58,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:49:58,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497851279] [2021-01-06 23:49:58,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:49:58,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 23:49:58,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399294178] [2021-01-06 23:49:58,003 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:49:58,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:58,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:49:58,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:49:58,004 INFO L87 Difference]: Start difference. First operand 559 states and 1737 transitions. Second operand 7 states. [2021-01-06 23:49:58,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:58,191 INFO L93 Difference]: Finished difference Result 933 states and 2580 transitions. [2021-01-06 23:49:58,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 23:49:58,192 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2021-01-06 23:49:58,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:58,200 INFO L225 Difference]: With dead ends: 933 [2021-01-06 23:49:58,200 INFO L226 Difference]: Without dead ends: 928 [2021-01-06 23:49:58,202 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-01-06 23:49:58,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2021-01-06 23:49:58,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 585. [2021-01-06 23:49:58,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2021-01-06 23:49:58,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 1832 transitions. [2021-01-06 23:49:58,241 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 1832 transitions. Word has length 9 [2021-01-06 23:49:58,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:58,241 INFO L481 AbstractCegarLoop]: Abstraction has 585 states and 1832 transitions. [2021-01-06 23:49:58,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:49:58,241 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 1832 transitions. [2021-01-06 23:49:58,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 23:49:58,248 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:58,248 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:58,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 23:49:58,248 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:49:58,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:58,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1898841947, now seen corresponding path program 1 times [2021-01-06 23:49:58,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:58,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988156281] [2021-01-06 23:49:58,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:58,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:58,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:49:58,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988156281] [2021-01-06 23:49:58,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771567910] [2021-01-06 23:49:58,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:49:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:58,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 23:49:58,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:49:58,541 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 23:49:58,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:49:58,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2021-01-06 23:49:58,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970709746] [2021-01-06 23:49:58,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:49:58,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:58,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:49:58,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-01-06 23:49:58,544 INFO L87 Difference]: Start difference. First operand 585 states and 1832 transitions. Second operand 5 states. [2021-01-06 23:49:58,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:58,651 INFO L93 Difference]: Finished difference Result 843 states and 2406 transitions. [2021-01-06 23:49:58,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:49:58,652 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-01-06 23:49:58,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:58,658 INFO L225 Difference]: With dead ends: 843 [2021-01-06 23:49:58,659 INFO L226 Difference]: Without dead ends: 836 [2021-01-06 23:49:58,659 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-01-06 23:49:58,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2021-01-06 23:49:58,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 611. [2021-01-06 23:49:58,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2021-01-06 23:49:58,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1906 transitions. [2021-01-06 23:49:58,688 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1906 transitions. Word has length 13 [2021-01-06 23:49:58,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:58,688 INFO L481 AbstractCegarLoop]: Abstraction has 611 states and 1906 transitions. [2021-01-06 23:49:58,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:49:58,689 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1906 transitions. [2021-01-06 23:49:58,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:49:58,690 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:58,690 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:58,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-01-06 23:49:58,904 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:49:58,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:58,905 INFO L82 PathProgramCache]: Analyzing trace with hash -800464392, now seen corresponding path program 1 times [2021-01-06 23:49:58,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:58,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074812874] [2021-01-06 23:49:58,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:59,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:49:59,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074812874] [2021-01-06 23:49:59,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47435689] [2021-01-06 23:49:59,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:49:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:59,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 23:49:59,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:49:59,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:49:59,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:49:59,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2021-01-06 23:49:59,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075166197] [2021-01-06 23:49:59,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-06 23:49:59,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:59,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-06 23:49:59,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-01-06 23:49:59,320 INFO L87 Difference]: Start difference. First operand 611 states and 1906 transitions. Second operand 18 states. [2021-01-06 23:50:00,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:00,450 INFO L93 Difference]: Finished difference Result 1804 states and 4622 transitions. [2021-01-06 23:50:00,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-01-06 23:50:00,451 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 15 [2021-01-06 23:50:00,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:00,465 INFO L225 Difference]: With dead ends: 1804 [2021-01-06 23:50:00,465 INFO L226 Difference]: Without dead ends: 1790 [2021-01-06 23:50:00,466 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=438, Invalid=1454, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:50:00,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states. [2021-01-06 23:50:00,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 591. [2021-01-06 23:50:00,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2021-01-06 23:50:00,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1840 transitions. [2021-01-06 23:50:00,508 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1840 transitions. Word has length 15 [2021-01-06 23:50:00,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:00,508 INFO L481 AbstractCegarLoop]: Abstraction has 591 states and 1840 transitions. [2021-01-06 23:50:00,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2021-01-06 23:50:00,509 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1840 transitions. [2021-01-06 23:50:00,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:50:00,509 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:00,509 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:00,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-01-06 23:50:00,724 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:50:00,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:00,725 INFO L82 PathProgramCache]: Analyzing trace with hash -573997344, now seen corresponding path program 2 times [2021-01-06 23:50:00,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:00,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695927815] [2021-01-06 23:50:00,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:00,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:00,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:00,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695927815] [2021-01-06 23:50:00,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541606261] [2021-01-06 23:50:00,820 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:00,902 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:50:00,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:50:00,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 23:50:00,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:01,030 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 23:50:01,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:01,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 13 [2021-01-06 23:50:01,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938161091] [2021-01-06 23:50:01,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:50:01,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:01,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:50:01,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-01-06 23:50:01,032 INFO L87 Difference]: Start difference. First operand 591 states and 1840 transitions. Second operand 7 states. [2021-01-06 23:50:01,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:01,347 INFO L93 Difference]: Finished difference Result 1053 states and 2807 transitions. [2021-01-06 23:50:01,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:50:01,348 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2021-01-06 23:50:01,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:01,356 INFO L225 Difference]: With dead ends: 1053 [2021-01-06 23:50:01,357 INFO L226 Difference]: Without dead ends: 1045 [2021-01-06 23:50:01,357 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2021-01-06 23:50:01,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2021-01-06 23:50:01,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 536. [2021-01-06 23:50:01,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2021-01-06 23:50:01,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1688 transitions. [2021-01-06 23:50:01,387 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1688 transitions. Word has length 15 [2021-01-06 23:50:01,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:01,387 INFO L481 AbstractCegarLoop]: Abstraction has 536 states and 1688 transitions. [2021-01-06 23:50:01,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:50:01,387 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1688 transitions. [2021-01-06 23:50:01,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-06 23:50:01,388 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:01,388 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:01,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:01,602 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:50:01,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:01,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1518312316, now seen corresponding path program 1 times [2021-01-06 23:50:01,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:01,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415031671] [2021-01-06 23:50:01,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:01,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:01,712 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 23:50:01,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415031671] [2021-01-06 23:50:01,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9647556] [2021-01-06 23:50:01,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:01,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 23:50:01,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:01,896 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-06 23:50:01,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:01,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2021-01-06 23:50:01,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910704013] [2021-01-06 23:50:01,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:50:01,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:01,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:50:01,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-01-06 23:50:01,899 INFO L87 Difference]: Start difference. First operand 536 states and 1688 transitions. Second operand 5 states. [2021-01-06 23:50:02,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:02,007 INFO L93 Difference]: Finished difference Result 736 states and 2123 transitions. [2021-01-06 23:50:02,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:50:02,008 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2021-01-06 23:50:02,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:02,015 INFO L225 Difference]: With dead ends: 736 [2021-01-06 23:50:02,015 INFO L226 Difference]: Without dead ends: 728 [2021-01-06 23:50:02,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-01-06 23:50:02,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2021-01-06 23:50:02,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 549. [2021-01-06 23:50:02,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 549 states. [2021-01-06 23:50:02,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 1684 transitions. [2021-01-06 23:50:02,040 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 1684 transitions. Word has length 17 [2021-01-06 23:50:02,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:02,040 INFO L481 AbstractCegarLoop]: Abstraction has 549 states and 1684 transitions. [2021-01-06 23:50:02,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:50:02,040 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 1684 transitions. [2021-01-06 23:50:02,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 23:50:02,041 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:02,042 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:02,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-01-06 23:50:02,257 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:50:02,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:02,258 INFO L82 PathProgramCache]: Analyzing trace with hash 173383506, now seen corresponding path program 1 times [2021-01-06 23:50:02,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:02,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746072800] [2021-01-06 23:50:02,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 23:50:02,284 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 23:50:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 23:50:02,324 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 23:50:02,339 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 23:50:02,339 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 23:50:02,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-06 23:50:02,339 WARN L342 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-01-06 23:50:02,340 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-01-06 23:50:02,355 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,355 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,356 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,356 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,356 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,356 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,356 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,356 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,357 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,357 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,357 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,357 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,358 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,358 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,358 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,358 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,358 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,358 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,358 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,359 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,359 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,359 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,359 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,359 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,359 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,359 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,360 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,360 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,360 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,360 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,360 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,360 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,360 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,360 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,360 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,361 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,361 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,361 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,361 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,361 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,361 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,361 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,362 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,362 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,362 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,362 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,362 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,362 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,362 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,362 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,362 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,363 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,363 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,363 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,363 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,363 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,363 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,363 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,364 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,364 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,364 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,364 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,364 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,364 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,364 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,364 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,365 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,365 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,365 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,365 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,365 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,365 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,365 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,365 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,366 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,366 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,366 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,366 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,366 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,366 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,366 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,367 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,367 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,367 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,367 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,367 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,367 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,367 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,367 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,368 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,368 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,368 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,368 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,368 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,368 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,368 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,369 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,369 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,369 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,369 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,369 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,369 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,369 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,369 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,370 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,370 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,370 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,370 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,370 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,370 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,370 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,371 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,371 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,371 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,371 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,371 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,371 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,371 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,371 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,372 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,372 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,372 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,372 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,373 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,373 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,373 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,373 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,373 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,373 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,374 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,374 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,374 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,374 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,374 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,375 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,376 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,376 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,376 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,376 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,376 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,378 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,378 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,378 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,378 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,378 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,379 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,379 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,379 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,380 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,380 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,381 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,381 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,381 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,382 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,383 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,383 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,383 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,383 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,383 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,385 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,386 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,386 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,386 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:02,388 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:50:02,388 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-01-06 23:50:02,389 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:50:02,389 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:50:02,389 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:50:02,389 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:50:02,389 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:50:02,389 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:50:02,389 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:50:02,390 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:50:02,391 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:50:02,391 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 126 places, 114 transitions, 292 flow [2021-01-06 23:50:02,391 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 126 places, 114 transitions, 292 flow [2021-01-06 23:50:02,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 114 transitions, 292 flow [2021-01-06 23:50:02,412 INFO L129 PetriNetUnfolder]: 7/136 cut-off events. [2021-01-06 23:50:02,412 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-01-06 23:50:02,414 INFO L84 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 136 events. 7/136 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 207 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 156. Up to 10 conditions per place. [2021-01-06 23:50:02,417 INFO L116 LiptonReduction]: Number of co-enabled transitions 1840 [2021-01-06 23:50:05,088 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-01-06 23:50:05,238 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-01-06 23:50:05,549 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-01-06 23:50:05,737 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-01-06 23:50:06,315 WARN L197 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2021-01-06 23:50:06,494 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-01-06 23:50:06,877 WARN L197 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2021-01-06 23:50:07,049 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-01-06 23:50:07,078 INFO L131 LiptonReduction]: Checked pairs total: 2897 [2021-01-06 23:50:07,079 INFO L133 LiptonReduction]: Total number of compositions: 107 [2021-01-06 23:50:07,079 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 33 transitions, 130 flow [2021-01-06 23:50:07,213 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2060 states. [2021-01-06 23:50:07,213 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states. [2021-01-06 23:50:07,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-01-06 23:50:07,214 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:07,214 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-01-06 23:50:07,214 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:50:07,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:07,215 INFO L82 PathProgramCache]: Analyzing trace with hash 844595, now seen corresponding path program 1 times [2021-01-06 23:50:07,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:07,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841515937] [2021-01-06 23:50:07,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:07,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:07,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:07,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841515937] [2021-01-06 23:50:07,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:50:07,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-01-06 23:50:07,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318803850] [2021-01-06 23:50:07,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:50:07,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:07,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:50:07,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:50:07,249 INFO L87 Difference]: Start difference. First operand 2060 states. Second operand 3 states. [2021-01-06 23:50:07,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:07,300 INFO L93 Difference]: Finished difference Result 1889 states and 7217 transitions. [2021-01-06 23:50:07,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:50:07,301 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-01-06 23:50:07,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:07,320 INFO L225 Difference]: With dead ends: 1889 [2021-01-06 23:50:07,320 INFO L226 Difference]: Without dead ends: 1767 [2021-01-06 23:50:07,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:50:07,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2021-01-06 23:50:07,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1767. [2021-01-06 23:50:07,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1767 states. [2021-01-06 23:50:07,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 6690 transitions. [2021-01-06 23:50:07,413 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 6690 transitions. Word has length 3 [2021-01-06 23:50:07,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:07,413 INFO L481 AbstractCegarLoop]: Abstraction has 1767 states and 6690 transitions. [2021-01-06 23:50:07,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:50:07,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 6690 transitions. [2021-01-06 23:50:07,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:50:07,413 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:07,414 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:07,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-06 23:50:07,414 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:50:07,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:07,414 INFO L82 PathProgramCache]: Analyzing trace with hash 608853316, now seen corresponding path program 1 times [2021-01-06 23:50:07,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:07,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621268344] [2021-01-06 23:50:07,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:07,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:07,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621268344] [2021-01-06 23:50:07,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:50:07,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 23:50:07,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077288381] [2021-01-06 23:50:07,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:50:07,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:07,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:50:07,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:50:07,508 INFO L87 Difference]: Start difference. First operand 1767 states and 6690 transitions. Second operand 7 states. [2021-01-06 23:50:07,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:07,668 INFO L93 Difference]: Finished difference Result 3381 states and 11559 transitions. [2021-01-06 23:50:07,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 23:50:07,669 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2021-01-06 23:50:07,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:07,699 INFO L225 Difference]: With dead ends: 3381 [2021-01-06 23:50:07,699 INFO L226 Difference]: Without dead ends: 3375 [2021-01-06 23:50:07,699 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-01-06 23:50:07,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3375 states. [2021-01-06 23:50:07,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3375 to 1966. [2021-01-06 23:50:07,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1966 states. [2021-01-06 23:50:07,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 7503 transitions. [2021-01-06 23:50:07,850 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 7503 transitions. Word has length 9 [2021-01-06 23:50:07,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:07,850 INFO L481 AbstractCegarLoop]: Abstraction has 1966 states and 7503 transitions. [2021-01-06 23:50:07,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:50:07,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 7503 transitions. [2021-01-06 23:50:07,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 23:50:07,851 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:07,851 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:07,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-06 23:50:07,852 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:50:07,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:07,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1705235461, now seen corresponding path program 1 times [2021-01-06 23:50:07,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:07,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708225914] [2021-01-06 23:50:07,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:07,925 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:07,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708225914] [2021-01-06 23:50:07,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881249573] [2021-01-06 23:50:07,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:08,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 23:50:08,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:08,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 23:50:08,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:08,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2021-01-06 23:50:08,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476655073] [2021-01-06 23:50:08,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:50:08,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:08,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:50:08,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-01-06 23:50:08,094 INFO L87 Difference]: Start difference. First operand 1966 states and 7503 transitions. Second operand 5 states. [2021-01-06 23:50:08,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:08,242 INFO L93 Difference]: Finished difference Result 3204 states and 11312 transitions. [2021-01-06 23:50:08,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:50:08,243 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-01-06 23:50:08,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:08,271 INFO L225 Difference]: With dead ends: 3204 [2021-01-06 23:50:08,271 INFO L226 Difference]: Without dead ends: 3194 [2021-01-06 23:50:08,271 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-01-06 23:50:08,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2021-01-06 23:50:08,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 2200. [2021-01-06 23:50:08,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2200 states. [2021-01-06 23:50:08,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2200 states to 2200 states and 8453 transitions. [2021-01-06 23:50:08,385 INFO L78 Accepts]: Start accepts. Automaton has 2200 states and 8453 transitions. Word has length 13 [2021-01-06 23:50:08,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:08,385 INFO L481 AbstractCegarLoop]: Abstraction has 2200 states and 8453 transitions. [2021-01-06 23:50:08,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:50:08,386 INFO L276 IsEmpty]: Start isEmpty. Operand 2200 states and 8453 transitions. [2021-01-06 23:50:08,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:50:08,386 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:08,387 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:08,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-01-06 23:50:08,601 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:50:08,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:08,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1691179042, now seen corresponding path program 1 times [2021-01-06 23:50:08,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:08,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582157650] [2021-01-06 23:50:08,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:08,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:08,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582157650] [2021-01-06 23:50:08,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76035423] [2021-01-06 23:50:08,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:08,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:08,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 23:50:08,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:08,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:08,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:50:08,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 13 [2021-01-06 23:50:08,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72148740] [2021-01-06 23:50:08,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-06 23:50:08,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:08,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-06 23:50:08,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-01-06 23:50:08,939 INFO L87 Difference]: Start difference. First operand 2200 states and 8453 transitions. Second operand 15 states. [2021-01-06 23:50:09,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:09,929 INFO L93 Difference]: Finished difference Result 5624 states and 17765 transitions. [2021-01-06 23:50:09,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-01-06 23:50:09,930 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 15 [2021-01-06 23:50:09,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:09,954 INFO L225 Difference]: With dead ends: 5624 [2021-01-06 23:50:09,954 INFO L226 Difference]: Without dead ends: 5605 [2021-01-06 23:50:09,958 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=288, Invalid=902, Unknown=0, NotChecked=0, Total=1190 [2021-01-06 23:50:09,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5605 states. [2021-01-06 23:50:10,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5605 to 2157. [2021-01-06 23:50:10,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2157 states. [2021-01-06 23:50:10,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 8278 transitions. [2021-01-06 23:50:10,099 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 8278 transitions. Word has length 15 [2021-01-06 23:50:10,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:10,099 INFO L481 AbstractCegarLoop]: Abstraction has 2157 states and 8278 transitions. [2021-01-06 23:50:10,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-01-06 23:50:10,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 8278 transitions. [2021-01-06 23:50:10,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:50:10,100 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:10,101 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:10,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-01-06 23:50:10,315 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:50:10,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:10,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1946238878, now seen corresponding path program 2 times [2021-01-06 23:50:10,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:10,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581915159] [2021-01-06 23:50:10,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:10,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:10,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:10,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581915159] [2021-01-06 23:50:10,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749792288] [2021-01-06 23:50:10,415 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:10,512 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:50:10,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:50:10,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 23:50:10,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:10,632 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 23:50:10,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:10,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 13 [2021-01-06 23:50:10,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369442942] [2021-01-06 23:50:10,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:50:10,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:10,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:50:10,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-01-06 23:50:10,634 INFO L87 Difference]: Start difference. First operand 2157 states and 8278 transitions. Second operand 7 states. [2021-01-06 23:50:10,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:10,995 INFO L93 Difference]: Finished difference Result 4612 states and 15111 transitions. [2021-01-06 23:50:10,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:50:10,995 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2021-01-06 23:50:10,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:11,014 INFO L225 Difference]: With dead ends: 4612 [2021-01-06 23:50:11,014 INFO L226 Difference]: Without dead ends: 4601 [2021-01-06 23:50:11,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2021-01-06 23:50:11,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4601 states. [2021-01-06 23:50:11,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4601 to 2035. [2021-01-06 23:50:11,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2035 states. [2021-01-06 23:50:11,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2035 states to 2035 states and 7845 transitions. [2021-01-06 23:50:11,138 INFO L78 Accepts]: Start accepts. Automaton has 2035 states and 7845 transitions. Word has length 15 [2021-01-06 23:50:11,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:11,139 INFO L481 AbstractCegarLoop]: Abstraction has 2035 states and 7845 transitions. [2021-01-06 23:50:11,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:50:11,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2035 states and 7845 transitions. [2021-01-06 23:50:11,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-06 23:50:11,140 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:11,140 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:11,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:11,355 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:50:11,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:11,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1847020699, now seen corresponding path program 1 times [2021-01-06 23:50:11,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:11,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430150618] [2021-01-06 23:50:11,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:11,435 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 23:50:11,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430150618] [2021-01-06 23:50:11,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699786136] [2021-01-06 23:50:11,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:11,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 23:50:11,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:11,599 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-06 23:50:11,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:11,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2021-01-06 23:50:11,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350004586] [2021-01-06 23:50:11,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:50:11,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:11,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:50:11,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-01-06 23:50:11,601 INFO L87 Difference]: Start difference. First operand 2035 states and 7845 transitions. Second operand 5 states. [2021-01-06 23:50:11,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:11,744 INFO L93 Difference]: Finished difference Result 3265 states and 11681 transitions. [2021-01-06 23:50:11,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:50:11,745 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2021-01-06 23:50:11,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:11,763 INFO L225 Difference]: With dead ends: 3265 [2021-01-06 23:50:11,763 INFO L226 Difference]: Without dead ends: 3250 [2021-01-06 23:50:11,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-01-06 23:50:11,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2021-01-06 23:50:11,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 2281. [2021-01-06 23:50:11,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2281 states. [2021-01-06 23:50:11,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 8755 transitions. [2021-01-06 23:50:11,877 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 8755 transitions. Word has length 17 [2021-01-06 23:50:11,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:11,877 INFO L481 AbstractCegarLoop]: Abstraction has 2281 states and 8755 transitions. [2021-01-06 23:50:11,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:50:11,877 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 8755 transitions. [2021-01-06 23:50:11,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:50:11,879 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:11,879 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:12,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:12,094 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:50:12,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:12,095 INFO L82 PathProgramCache]: Analyzing trace with hash -440983810, now seen corresponding path program 1 times [2021-01-06 23:50:12,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:12,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011617113] [2021-01-06 23:50:12,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:12,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:12,196 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:12,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011617113] [2021-01-06 23:50:12,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764087312] [2021-01-06 23:50:12,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:12,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:12,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 23:50:12,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:12,458 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-06 23:50:12,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:50:12,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 14 [2021-01-06 23:50:12,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982044528] [2021-01-06 23:50:12,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-01-06 23:50:12,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:12,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-01-06 23:50:12,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2021-01-06 23:50:12,460 INFO L87 Difference]: Start difference. First operand 2281 states and 8755 transitions. Second operand 16 states. [2021-01-06 23:50:13,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:13,526 INFO L93 Difference]: Finished difference Result 5138 states and 16882 transitions. [2021-01-06 23:50:13,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-01-06 23:50:13,526 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 19 [2021-01-06 23:50:13,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:13,543 INFO L225 Difference]: With dead ends: 5138 [2021-01-06 23:50:13,543 INFO L226 Difference]: Without dead ends: 5116 [2021-01-06 23:50:13,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=286, Invalid=904, Unknown=0, NotChecked=0, Total=1190 [2021-01-06 23:50:13,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5116 states. [2021-01-06 23:50:13,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5116 to 2305. [2021-01-06 23:50:13,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2305 states. [2021-01-06 23:50:13,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 8815 transitions. [2021-01-06 23:50:13,675 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 8815 transitions. Word has length 19 [2021-01-06 23:50:13,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:13,676 INFO L481 AbstractCegarLoop]: Abstraction has 2305 states and 8815 transitions. [2021-01-06 23:50:13,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-01-06 23:50:13,676 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 8815 transitions. [2021-01-06 23:50:13,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:50:13,680 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:13,680 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:13,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:13,895 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:50:13,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:13,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1798913580, now seen corresponding path program 1 times [2021-01-06 23:50:13,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:13,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833930088] [2021-01-06 23:50:13,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:13,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:14,008 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:14,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833930088] [2021-01-06 23:50:14,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82658209] [2021-01-06 23:50:14,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:14,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:50:14,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:14,326 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:14,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:50:14,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2021-01-06 23:50:14,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791592353] [2021-01-06 23:50:14,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-01-06 23:50:14,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:14,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-01-06 23:50:14,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2021-01-06 23:50:14,328 INFO L87 Difference]: Start difference. First operand 2305 states and 8815 transitions. Second operand 20 states. [2021-01-06 23:50:15,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:15,728 INFO L93 Difference]: Finished difference Result 6194 states and 20133 transitions. [2021-01-06 23:50:15,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:50:15,729 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 19 [2021-01-06 23:50:15,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:15,750 INFO L225 Difference]: With dead ends: 6194 [2021-01-06 23:50:15,751 INFO L226 Difference]: Without dead ends: 6179 [2021-01-06 23:50:15,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=448, Invalid=1532, Unknown=0, NotChecked=0, Total=1980 [2021-01-06 23:50:15,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6179 states. [2021-01-06 23:50:15,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6179 to 2314. [2021-01-06 23:50:15,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2314 states. [2021-01-06 23:50:15,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 8833 transitions. [2021-01-06 23:50:15,910 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 8833 transitions. Word has length 19 [2021-01-06 23:50:15,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:15,910 INFO L481 AbstractCegarLoop]: Abstraction has 2314 states and 8833 transitions. [2021-01-06 23:50:15,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-01-06 23:50:15,910 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 8833 transitions. [2021-01-06 23:50:15,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:50:15,912 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:15,912 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:16,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-01-06 23:50:16,127 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:50:16,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:16,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1165401684, now seen corresponding path program 2 times [2021-01-06 23:50:16,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:16,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264764904] [2021-01-06 23:50:16,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:16,248 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:16,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264764904] [2021-01-06 23:50:16,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986473776] [2021-01-06 23:50:16,249 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:16,368 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:50:16,368 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:50:16,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 23:50:16,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:16,521 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-06 23:50:16,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:16,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2021-01-06 23:50:16,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503067327] [2021-01-06 23:50:16,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:50:16,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:16,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:50:16,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2021-01-06 23:50:16,524 INFO L87 Difference]: Start difference. First operand 2314 states and 8833 transitions. Second operand 7 states. [2021-01-06 23:50:16,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:16,874 INFO L93 Difference]: Finished difference Result 4982 states and 16559 transitions. [2021-01-06 23:50:16,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:50:16,874 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2021-01-06 23:50:16,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:16,888 INFO L225 Difference]: With dead ends: 4982 [2021-01-06 23:50:16,888 INFO L226 Difference]: Without dead ends: 4965 [2021-01-06 23:50:16,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2021-01-06 23:50:16,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4965 states. [2021-01-06 23:50:16,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4965 to 2231. [2021-01-06 23:50:16,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2231 states. [2021-01-06 23:50:17,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 8528 transitions. [2021-01-06 23:50:17,005 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 8528 transitions. Word has length 19 [2021-01-06 23:50:17,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:17,007 INFO L481 AbstractCegarLoop]: Abstraction has 2231 states and 8528 transitions. [2021-01-06 23:50:17,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:50:17,007 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 8528 transitions. [2021-01-06 23:50:17,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:50:17,008 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:17,008 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:17,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:17,224 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:50:17,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:17,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1165408318, now seen corresponding path program 2 times [2021-01-06 23:50:17,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:17,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637509713] [2021-01-06 23:50:17,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:17,341 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:17,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637509713] [2021-01-06 23:50:17,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716452709] [2021-01-06 23:50:17,342 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:17,451 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:50:17,451 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:50:17,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 23:50:17,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:17,579 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-06 23:50:17,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:17,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2021-01-06 23:50:17,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684848238] [2021-01-06 23:50:17,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:50:17,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:17,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:50:17,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2021-01-06 23:50:17,581 INFO L87 Difference]: Start difference. First operand 2231 states and 8528 transitions. Second operand 7 states. [2021-01-06 23:50:17,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:17,911 INFO L93 Difference]: Finished difference Result 4772 states and 15819 transitions. [2021-01-06 23:50:17,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:50:17,911 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2021-01-06 23:50:17,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:17,920 INFO L225 Difference]: With dead ends: 4772 [2021-01-06 23:50:17,920 INFO L226 Difference]: Without dead ends: 4755 [2021-01-06 23:50:17,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2021-01-06 23:50:17,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4755 states. [2021-01-06 23:50:18,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4755 to 2161. [2021-01-06 23:50:18,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2161 states. [2021-01-06 23:50:18,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 8280 transitions. [2021-01-06 23:50:18,029 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 8280 transitions. Word has length 19 [2021-01-06 23:50:18,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:18,029 INFO L481 AbstractCegarLoop]: Abstraction has 2161 states and 8280 transitions. [2021-01-06 23:50:18,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:50:18,029 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 8280 transitions. [2021-01-06 23:50:18,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:50:18,031 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:18,031 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:18,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-01-06 23:50:18,246 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:50:18,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:18,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1547991177, now seen corresponding path program 1 times [2021-01-06 23:50:18,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:18,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842320342] [2021-01-06 23:50:18,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:18,357 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-01-06 23:50:18,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842320342] [2021-01-06 23:50:18,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196391086] [2021-01-06 23:50:18,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:18,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 23:50:18,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:18,670 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:18,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:50:18,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 17 [2021-01-06 23:50:18,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450525651] [2021-01-06 23:50:18,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-01-06 23:50:18,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:18,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-01-06 23:50:18,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-01-06 23:50:18,672 INFO L87 Difference]: Start difference. First operand 2161 states and 8280 transitions. Second operand 19 states. [2021-01-06 23:50:22,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:22,099 INFO L93 Difference]: Finished difference Result 8813 states and 26214 transitions. [2021-01-06 23:50:22,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-01-06 23:50:22,099 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 21 [2021-01-06 23:50:22,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:22,115 INFO L225 Difference]: With dead ends: 8813 [2021-01-06 23:50:22,115 INFO L226 Difference]: Without dead ends: 8769 [2021-01-06 23:50:22,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2831 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1527, Invalid=6663, Unknown=0, NotChecked=0, Total=8190 [2021-01-06 23:50:22,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8769 states. [2021-01-06 23:50:22,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8769 to 2117. [2021-01-06 23:50:22,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2117 states. [2021-01-06 23:50:22,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 8106 transitions. [2021-01-06 23:50:22,275 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 8106 transitions. Word has length 21 [2021-01-06 23:50:22,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:22,275 INFO L481 AbstractCegarLoop]: Abstraction has 2117 states and 8106 transitions. [2021-01-06 23:50:22,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-01-06 23:50:22,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 8106 transitions. [2021-01-06 23:50:22,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:50:22,277 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:22,277 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:22,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:22,491 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:50:22,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:22,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1416324087, now seen corresponding path program 2 times [2021-01-06 23:50:22,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:22,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125450658] [2021-01-06 23:50:22,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:22,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:22,618 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:22,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125450658] [2021-01-06 23:50:22,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144065508] [2021-01-06 23:50:22,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:22,743 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 23:50:22,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:50:22,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 23:50:22,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:22,960 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-01-06 23:50:22,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:50:22,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 18 [2021-01-06 23:50:22,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768250922] [2021-01-06 23:50:22,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-01-06 23:50:22,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:22,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-01-06 23:50:22,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2021-01-06 23:50:22,962 INFO L87 Difference]: Start difference. First operand 2117 states and 8106 transitions. Second operand 20 states. [2021-01-06 23:50:26,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:26,126 INFO L93 Difference]: Finished difference Result 7518 states and 22214 transitions. [2021-01-06 23:50:26,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-01-06 23:50:26,127 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 21 [2021-01-06 23:50:26,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:26,148 INFO L225 Difference]: With dead ends: 7518 [2021-01-06 23:50:26,149 INFO L226 Difference]: Without dead ends: 7497 [2021-01-06 23:50:26,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2354 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1419, Invalid=5721, Unknown=0, NotChecked=0, Total=7140 [2021-01-06 23:50:26,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7497 states. [2021-01-06 23:50:26,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7497 to 2085. [2021-01-06 23:50:26,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2085 states. [2021-01-06 23:50:26,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 7975 transitions. [2021-01-06 23:50:26,292 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 7975 transitions. Word has length 21 [2021-01-06 23:50:26,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:26,293 INFO L481 AbstractCegarLoop]: Abstraction has 2085 states and 7975 transitions. [2021-01-06 23:50:26,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-01-06 23:50:26,293 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 7975 transitions. [2021-01-06 23:50:26,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:50:26,295 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:26,295 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:26,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-01-06 23:50:26,510 INFO L429 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:50:26,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:26,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1549185225, now seen corresponding path program 3 times [2021-01-06 23:50:26,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:26,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393730611] [2021-01-06 23:50:26,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:26,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:26,640 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:26,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393730611] [2021-01-06 23:50:26,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883436825] [2021-01-06 23:50:26,641 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:26,749 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-01-06 23:50:26,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:50:26,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 23:50:26,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:26,972 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 23:50:26,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:50:26,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 17 [2021-01-06 23:50:26,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54043519] [2021-01-06 23:50:26,975 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-01-06 23:50:26,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:26,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-01-06 23:50:26,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2021-01-06 23:50:26,976 INFO L87 Difference]: Start difference. First operand 2085 states and 7975 transitions. Second operand 19 states. [2021-01-06 23:50:30,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:30,403 INFO L93 Difference]: Finished difference Result 8405 states and 25315 transitions. [2021-01-06 23:50:30,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-01-06 23:50:30,403 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 21 [2021-01-06 23:50:30,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:30,424 INFO L225 Difference]: With dead ends: 8405 [2021-01-06 23:50:30,425 INFO L226 Difference]: Without dead ends: 8391 [2021-01-06 23:50:30,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1898 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1228, Invalid=4624, Unknown=0, NotChecked=0, Total=5852 [2021-01-06 23:50:30,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8391 states. [2021-01-06 23:50:30,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8391 to 2024. [2021-01-06 23:50:30,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2024 states. [2021-01-06 23:50:30,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2024 states to 2024 states and 7766 transitions. [2021-01-06 23:50:30,592 INFO L78 Accepts]: Start accepts. Automaton has 2024 states and 7766 transitions. Word has length 21 [2021-01-06 23:50:30,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:30,592 INFO L481 AbstractCegarLoop]: Abstraction has 2024 states and 7766 transitions. [2021-01-06 23:50:30,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-01-06 23:50:30,592 INFO L276 IsEmpty]: Start isEmpty. Operand 2024 states and 7766 transitions. [2021-01-06 23:50:30,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:50:30,594 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:30,594 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:30,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-01-06 23:50:30,809 INFO L429 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:50:30,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:30,810 INFO L82 PathProgramCache]: Analyzing trace with hash 2115879735, now seen corresponding path program 4 times [2021-01-06 23:50:30,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:30,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014328360] [2021-01-06 23:50:30,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:30,928 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:30,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014328360] [2021-01-06 23:50:30,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283337929] [2021-01-06 23:50:30,929 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:31,043 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 23:50:31,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:50:31,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 17 conjunts are in the unsatisfiable core [2021-01-06 23:50:31,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:31,294 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:31,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:50:31,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2021-01-06 23:50:31,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606577264] [2021-01-06 23:50:31,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-06 23:50:31,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:31,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-06 23:50:31,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2021-01-06 23:50:31,297 INFO L87 Difference]: Start difference. First operand 2024 states and 7766 transitions. Second operand 24 states. [2021-01-06 23:50:34,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:34,496 INFO L93 Difference]: Finished difference Result 8053 states and 24027 transitions. [2021-01-06 23:50:34,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-01-06 23:50:34,497 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 21 [2021-01-06 23:50:34,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:34,518 INFO L225 Difference]: With dead ends: 8053 [2021-01-06 23:50:34,518 INFO L226 Difference]: Without dead ends: 8038 [2021-01-06 23:50:34,521 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2815 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1543, Invalid=6467, Unknown=0, NotChecked=0, Total=8010 [2021-01-06 23:50:34,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8038 states. [2021-01-06 23:50:34,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8038 to 1986. [2021-01-06 23:50:34,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1986 states. [2021-01-06 23:50:34,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1986 states to 1986 states and 7603 transitions. [2021-01-06 23:50:34,664 INFO L78 Accepts]: Start accepts. Automaton has 1986 states and 7603 transitions. Word has length 21 [2021-01-06 23:50:34,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:34,664 INFO L481 AbstractCegarLoop]: Abstraction has 1986 states and 7603 transitions. [2021-01-06 23:50:34,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2021-01-06 23:50:34,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1986 states and 7603 transitions. [2021-01-06 23:50:34,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:50:34,668 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:34,668 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:34,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-01-06 23:50:34,883 INFO L429 AbstractCegarLoop]: === Iteration 15 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:50:34,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:34,884 INFO L82 PathProgramCache]: Analyzing trace with hash -290678062, now seen corresponding path program 1 times [2021-01-06 23:50:34,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:34,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580275767] [2021-01-06 23:50:34,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:34,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:34,979 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-06 23:50:34,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580275767] [2021-01-06 23:50:34,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575731808] [2021-01-06 23:50:34,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:35,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 23:50:35,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:35,169 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 23:50:35,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:35,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2021-01-06 23:50:35,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108570042] [2021-01-06 23:50:35,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:50:35,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:35,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:50:35,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-01-06 23:50:35,171 INFO L87 Difference]: Start difference. First operand 1986 states and 7603 transitions. Second operand 5 states. [2021-01-06 23:50:35,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:35,331 INFO L93 Difference]: Finished difference Result 3026 states and 10876 transitions. [2021-01-06 23:50:35,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:50:35,332 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2021-01-06 23:50:35,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:35,340 INFO L225 Difference]: With dead ends: 3026 [2021-01-06 23:50:35,341 INFO L226 Difference]: Without dead ends: 3010 [2021-01-06 23:50:35,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-01-06 23:50:35,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2021-01-06 23:50:35,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 2193. [2021-01-06 23:50:35,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2193 states. [2021-01-06 23:50:35,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 8246 transitions. [2021-01-06 23:50:35,422 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 8246 transitions. Word has length 21 [2021-01-06 23:50:35,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:35,422 INFO L481 AbstractCegarLoop]: Abstraction has 2193 states and 8246 transitions. [2021-01-06 23:50:35,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:50:35,423 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 8246 transitions. [2021-01-06 23:50:35,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:50:35,424 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:35,425 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:35,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-01-06 23:50:35,638 INFO L429 AbstractCegarLoop]: === Iteration 16 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:50:35,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:35,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1035436105, now seen corresponding path program 5 times [2021-01-06 23:50:35,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:35,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504719792] [2021-01-06 23:50:35,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:35,790 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:35,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504719792] [2021-01-06 23:50:35,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328318921] [2021-01-06 23:50:35,791 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:35,900 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-01-06 23:50:35,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:50:35,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 17 conjunts are in the unsatisfiable core [2021-01-06 23:50:35,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:36,130 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:36,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:50:36,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2021-01-06 23:50:36,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452871530] [2021-01-06 23:50:36,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-06 23:50:36,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:36,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-06 23:50:36,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2021-01-06 23:50:36,132 INFO L87 Difference]: Start difference. First operand 2193 states and 8246 transitions. Second operand 24 states. [2021-01-06 23:50:38,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:38,044 INFO L93 Difference]: Finished difference Result 6968 states and 21312 transitions. [2021-01-06 23:50:38,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-01-06 23:50:38,044 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 21 [2021-01-06 23:50:38,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:38,057 INFO L225 Difference]: With dead ends: 6968 [2021-01-06 23:50:38,057 INFO L226 Difference]: Without dead ends: 6957 [2021-01-06 23:50:38,058 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1080 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=770, Invalid=2890, Unknown=0, NotChecked=0, Total=3660 [2021-01-06 23:50:38,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6957 states. [2021-01-06 23:50:38,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6957 to 2106. [2021-01-06 23:50:38,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2106 states. [2021-01-06 23:50:38,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2106 states to 2106 states and 7912 transitions. [2021-01-06 23:50:38,178 INFO L78 Accepts]: Start accepts. Automaton has 2106 states and 7912 transitions. Word has length 21 [2021-01-06 23:50:38,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:38,178 INFO L481 AbstractCegarLoop]: Abstraction has 2106 states and 7912 transitions. [2021-01-06 23:50:38,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2021-01-06 23:50:38,178 INFO L276 IsEmpty]: Start isEmpty. Operand 2106 states and 7912 transitions. [2021-01-06 23:50:38,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:50:38,180 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:38,180 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:38,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:38,394 INFO L429 AbstractCegarLoop]: === Iteration 17 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:50:38,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:38,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1029067465, now seen corresponding path program 6 times [2021-01-06 23:50:38,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:38,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098519355] [2021-01-06 23:50:38,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:38,518 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:38,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098519355] [2021-01-06 23:50:38,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329151390] [2021-01-06 23:50:38,520 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:38,623 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-01-06 23:50:38,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:50:38,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 23:50:38,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:38,828 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-06 23:50:38,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:38,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 18 [2021-01-06 23:50:38,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103242395] [2021-01-06 23:50:38,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:50:38,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:38,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:50:38,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2021-01-06 23:50:38,830 INFO L87 Difference]: Start difference. First operand 2106 states and 7912 transitions. Second operand 9 states. [2021-01-06 23:50:39,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:39,757 INFO L93 Difference]: Finished difference Result 6024 states and 18815 transitions. [2021-01-06 23:50:39,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:50:39,757 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2021-01-06 23:50:39,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:39,768 INFO L225 Difference]: With dead ends: 6024 [2021-01-06 23:50:39,768 INFO L226 Difference]: Without dead ends: 6009 [2021-01-06 23:50:39,769 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=398, Invalid=1408, Unknown=0, NotChecked=0, Total=1806 [2021-01-06 23:50:39,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6009 states. [2021-01-06 23:50:39,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6009 to 1975. [2021-01-06 23:50:39,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1975 states. [2021-01-06 23:50:39,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1975 states to 1975 states and 7465 transitions. [2021-01-06 23:50:39,854 INFO L78 Accepts]: Start accepts. Automaton has 1975 states and 7465 transitions. Word has length 21 [2021-01-06 23:50:39,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:39,854 INFO L481 AbstractCegarLoop]: Abstraction has 1975 states and 7465 transitions. [2021-01-06 23:50:39,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:50:39,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1975 states and 7465 transitions. [2021-01-06 23:50:39,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-01-06 23:50:39,857 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:39,857 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:40,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-01-06 23:50:40,071 INFO L429 AbstractCegarLoop]: === Iteration 18 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:50:40,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:40,072 INFO L82 PathProgramCache]: Analyzing trace with hash -425444958, now seen corresponding path program 1 times [2021-01-06 23:50:40,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:40,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124008610] [2021-01-06 23:50:40,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 23:50:40,086 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 23:50:40,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 23:50:40,133 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 23:50:40,148 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 23:50:40,149 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 23:50:40,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-01-06 23:50:40,151 WARN L342 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-01-06 23:50:40,152 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-01-06 23:50:40,178 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,179 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,179 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,179 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,179 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,179 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,179 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,179 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,180 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,180 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,180 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,180 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,180 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,180 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,181 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,181 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,181 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,181 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,181 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,181 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,181 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,181 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,181 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,181 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,181 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,181 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,181 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,182 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,182 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,182 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,182 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,182 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,182 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,182 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,182 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,182 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,182 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,182 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,182 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,183 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,183 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,183 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,183 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,183 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,183 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,183 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,183 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,183 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,183 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,183 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,183 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,184 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,184 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,184 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,184 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,184 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,184 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,184 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,184 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,184 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,184 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,184 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,184 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,185 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,185 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,185 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,185 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,185 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,185 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,185 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,185 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,185 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,185 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,185 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,186 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,186 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,186 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,186 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,186 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,186 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,186 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,186 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,186 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,186 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,186 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,186 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,187 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,187 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,187 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,187 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,187 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,187 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,187 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,187 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,187 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,187 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,187 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,187 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,188 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,188 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,188 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,188 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,188 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,188 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,188 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,188 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,188 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,188 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,188 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,189 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,189 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,189 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,189 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,189 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,189 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,189 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,189 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,189 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,189 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,189 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,189 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,190 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,190 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,190 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,190 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,190 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,190 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,190 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,190 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,190 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,190 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,190 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,191 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,191 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,191 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,191 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,191 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,191 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,191 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,191 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,192 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,192 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,192 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,192 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,192 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,192 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,192 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,192 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,193 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,193 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,193 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,193 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,193 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,193 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,193 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,193 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,194 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,194 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,194 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,194 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,194 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,194 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,194 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,194 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,194 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,195 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,195 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,195 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,195 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,195 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,195 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,196 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,197 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,198 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,199 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,200 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,201 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,201 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,201 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,201 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,201 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,202 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,203 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,203 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,203 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,203 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,204 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,204 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,205 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,206 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,206 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,206 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,207 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,208 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,208 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,209 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,210 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,210 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,210 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,210 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,210 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,212 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,212 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,212 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,212 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,212 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,212 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:50:40,214 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:50:40,214 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-01-06 23:50:40,216 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:50:40,217 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:50:40,217 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:50:40,217 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:50:40,217 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:50:40,217 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:50:40,217 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:50:40,217 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:50:40,219 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:50:40,219 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 146 places, 131 transitions, 352 flow [2021-01-06 23:50:40,219 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 146 places, 131 transitions, 352 flow [2021-01-06 23:50:40,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 146 places, 131 transitions, 352 flow [2021-01-06 23:50:40,269 INFO L129 PetriNetUnfolder]: 8/157 cut-off events. [2021-01-06 23:50:40,270 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-01-06 23:50:40,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 157 events. 8/157 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 257 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 184. Up to 12 conditions per place. [2021-01-06 23:50:40,283 INFO L116 LiptonReduction]: Number of co-enabled transitions 2360 [2021-01-06 23:50:43,498 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-01-06 23:50:44,304 WARN L197 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2021-01-06 23:50:44,436 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-01-06 23:50:44,739 WARN L197 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2021-01-06 23:50:44,872 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-01-06 23:50:45,051 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-01-06 23:50:45,215 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-01-06 23:50:45,416 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-01-06 23:50:45,608 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-01-06 23:50:45,617 INFO L131 LiptonReduction]: Checked pairs total: 3863 [2021-01-06 23:50:45,617 INFO L133 LiptonReduction]: Total number of compositions: 121 [2021-01-06 23:50:45,633 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 39 transitions, 168 flow [2021-01-06 23:50:46,022 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6191 states. [2021-01-06 23:50:46,022 INFO L276 IsEmpty]: Start isEmpty. Operand 6191 states. [2021-01-06 23:50:46,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-01-06 23:50:46,023 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:46,023 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-01-06 23:50:46,023 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:50:46,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:46,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1111243, now seen corresponding path program 1 times [2021-01-06 23:50:46,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:46,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723079143] [2021-01-06 23:50:46,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:46,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:46,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723079143] [2021-01-06 23:50:46,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:50:46,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-01-06 23:50:46,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540622659] [2021-01-06 23:50:46,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:50:46,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:46,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:50:46,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:50:46,052 INFO L87 Difference]: Start difference. First operand 6191 states. Second operand 3 states. [2021-01-06 23:50:46,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:46,141 INFO L93 Difference]: Finished difference Result 5844 states and 26316 transitions. [2021-01-06 23:50:46,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:50:46,141 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-01-06 23:50:46,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:46,166 INFO L225 Difference]: With dead ends: 5844 [2021-01-06 23:50:46,166 INFO L226 Difference]: Without dead ends: 5479 [2021-01-06 23:50:46,169 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:50:46,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5479 states. [2021-01-06 23:50:46,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5479 to 5479. [2021-01-06 23:50:46,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2021-01-06 23:50:46,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 24493 transitions. [2021-01-06 23:50:46,447 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 24493 transitions. Word has length 3 [2021-01-06 23:50:46,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:46,447 INFO L481 AbstractCegarLoop]: Abstraction has 5479 states and 24493 transitions. [2021-01-06 23:50:46,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:50:46,447 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 24493 transitions. [2021-01-06 23:50:46,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:50:46,447 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:46,448 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:46,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-01-06 23:50:46,448 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:50:46,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:46,448 INFO L82 PathProgramCache]: Analyzing trace with hash -745341310, now seen corresponding path program 1 times [2021-01-06 23:50:46,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:46,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319424647] [2021-01-06 23:50:46,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:46,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:46,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319424647] [2021-01-06 23:50:46,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:50:46,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 23:50:46,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746822811] [2021-01-06 23:50:46,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:50:46,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:46,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:50:46,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:50:46,512 INFO L87 Difference]: Start difference. First operand 5479 states and 24493 transitions. Second operand 7 states. [2021-01-06 23:50:46,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:46,805 INFO L93 Difference]: Finished difference Result 11373 states and 46632 transitions. [2021-01-06 23:50:46,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 23:50:46,806 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2021-01-06 23:50:46,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:47,025 INFO L225 Difference]: With dead ends: 11373 [2021-01-06 23:50:47,027 INFO L226 Difference]: Without dead ends: 11366 [2021-01-06 23:50:47,027 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-01-06 23:50:47,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11366 states. [2021-01-06 23:50:47,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11366 to 6331. [2021-01-06 23:50:47,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6331 states. [2021-01-06 23:50:47,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6331 states to 6331 states and 28544 transitions. [2021-01-06 23:50:47,592 INFO L78 Accepts]: Start accepts. Automaton has 6331 states and 28544 transitions. Word has length 9 [2021-01-06 23:50:47,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:47,592 INFO L481 AbstractCegarLoop]: Abstraction has 6331 states and 28544 transitions. [2021-01-06 23:50:47,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:50:47,592 INFO L276 IsEmpty]: Start isEmpty. Operand 6331 states and 28544 transitions. [2021-01-06 23:50:47,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 23:50:47,592 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:47,593 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:47,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-01-06 23:50:47,593 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:50:47,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:47,593 INFO L82 PathProgramCache]: Analyzing trace with hash 901725382, now seen corresponding path program 1 times [2021-01-06 23:50:47,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:47,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422128767] [2021-01-06 23:50:47,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:47,717 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:47,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422128767] [2021-01-06 23:50:47,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462752647] [2021-01-06 23:50:47,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:47,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 23:50:47,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:47,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 23:50:47,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:47,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2021-01-06 23:50:47,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977839361] [2021-01-06 23:50:47,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:50:47,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:47,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:50:47,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-01-06 23:50:47,914 INFO L87 Difference]: Start difference. First operand 6331 states and 28544 transitions. Second operand 5 states. [2021-01-06 23:50:48,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:48,305 INFO L93 Difference]: Finished difference Result 11081 states and 46826 transitions. [2021-01-06 23:50:48,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:50:48,306 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-01-06 23:50:48,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:48,385 INFO L225 Difference]: With dead ends: 11081 [2021-01-06 23:50:48,385 INFO L226 Difference]: Without dead ends: 11068 [2021-01-06 23:50:48,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-01-06 23:50:48,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11068 states. [2021-01-06 23:50:48,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11068 to 7391. [2021-01-06 23:50:48,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7391 states. [2021-01-06 23:50:48,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7391 states to 7391 states and 33694 transitions. [2021-01-06 23:50:48,723 INFO L78 Accepts]: Start accepts. Automaton has 7391 states and 33694 transitions. Word has length 13 [2021-01-06 23:50:48,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:48,723 INFO L481 AbstractCegarLoop]: Abstraction has 7391 states and 33694 transitions. [2021-01-06 23:50:48,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:50:48,724 INFO L276 IsEmpty]: Start isEmpty. Operand 7391 states and 33694 transitions. [2021-01-06 23:50:48,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:50:48,724 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:48,724 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:48,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-01-06 23:50:48,925 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:50:48,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:48,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1025299782, now seen corresponding path program 1 times [2021-01-06 23:50:48,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:48,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199502028] [2021-01-06 23:50:48,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:49,008 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:49,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199502028] [2021-01-06 23:50:49,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029218148] [2021-01-06 23:50:49,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:49,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 11 conjunts are in the unsatisfiable core [2021-01-06 23:50:49,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:49,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:49,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:50:49,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-01-06 23:50:49,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410225129] [2021-01-06 23:50:49,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-01-06 23:50:49,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:49,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-01-06 23:50:49,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2021-01-06 23:50:49,424 INFO L87 Difference]: Start difference. First operand 7391 states and 33694 transitions. Second operand 17 states. [2021-01-06 23:50:50,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:50,383 INFO L93 Difference]: Finished difference Result 20116 states and 77176 transitions. [2021-01-06 23:50:50,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-06 23:50:50,384 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 15 [2021-01-06 23:50:50,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:50,436 INFO L225 Difference]: With dead ends: 20116 [2021-01-06 23:50:50,437 INFO L226 Difference]: Without dead ends: 20095 [2021-01-06 23:50:50,437 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=258, Invalid=798, Unknown=0, NotChecked=0, Total=1056 [2021-01-06 23:50:50,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20095 states. [2021-01-06 23:50:50,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20095 to 7303. [2021-01-06 23:50:50,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7303 states. [2021-01-06 23:50:50,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7303 states to 7303 states and 33260 transitions. [2021-01-06 23:50:50,884 INFO L78 Accepts]: Start accepts. Automaton has 7303 states and 33260 transitions. Word has length 15 [2021-01-06 23:50:50,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:50,885 INFO L481 AbstractCegarLoop]: Abstraction has 7303 states and 33260 transitions. [2021-01-06 23:50:50,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2021-01-06 23:50:50,885 INFO L276 IsEmpty]: Start isEmpty. Operand 7303 states and 33260 transitions. [2021-01-06 23:50:50,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:50:50,885 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:50,885 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:51,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:51,087 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:50:51,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:51,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1022204742, now seen corresponding path program 2 times [2021-01-06 23:50:51,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:51,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972784334] [2021-01-06 23:50:51,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:51,271 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:51,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972784334] [2021-01-06 23:50:51,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316879412] [2021-01-06 23:50:51,271 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:51,386 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:50:51,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:50:51,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2021-01-06 23:50:51,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:51,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 23:50:51,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:51,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 13 [2021-01-06 23:50:51,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015218766] [2021-01-06 23:50:51,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:50:51,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:51,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:50:51,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2021-01-06 23:50:51,510 INFO L87 Difference]: Start difference. First operand 7303 states and 33260 transitions. Second operand 7 states. [2021-01-06 23:50:52,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:52,039 INFO L93 Difference]: Finished difference Result 17085 states and 67393 transitions. [2021-01-06 23:50:52,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:50:52,039 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2021-01-06 23:50:52,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:52,091 INFO L225 Difference]: With dead ends: 17085 [2021-01-06 23:50:52,091 INFO L226 Difference]: Without dead ends: 17071 [2021-01-06 23:50:52,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2021-01-06 23:50:52,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17071 states. [2021-01-06 23:50:52,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17071 to 7048. [2021-01-06 23:50:52,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7048 states. [2021-01-06 23:50:52,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7048 states to 7048 states and 32136 transitions. [2021-01-06 23:50:52,548 INFO L78 Accepts]: Start accepts. Automaton has 7048 states and 32136 transitions. Word has length 15 [2021-01-06 23:50:52,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:52,548 INFO L481 AbstractCegarLoop]: Abstraction has 7048 states and 32136 transitions. [2021-01-06 23:50:52,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:50:52,548 INFO L276 IsEmpty]: Start isEmpty. Operand 7048 states and 32136 transitions. [2021-01-06 23:50:52,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-06 23:50:52,549 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:52,549 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:52,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-01-06 23:50:52,758 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:50:52,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:52,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1059883444, now seen corresponding path program 1 times [2021-01-06 23:50:52,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:52,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379761314] [2021-01-06 23:50:52,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:52,825 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 23:50:52,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379761314] [2021-01-06 23:50:52,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611365752] [2021-01-06 23:50:52,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:52,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 23:50:52,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:53,015 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-06 23:50:53,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:53,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2021-01-06 23:50:53,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168833335] [2021-01-06 23:50:53,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:50:53,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:53,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:50:53,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-01-06 23:50:53,018 INFO L87 Difference]: Start difference. First operand 7048 states and 32136 transitions. Second operand 5 states. [2021-01-06 23:50:53,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:53,195 INFO L93 Difference]: Finished difference Result 12234 states and 52488 transitions. [2021-01-06 23:50:53,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:50:53,196 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2021-01-06 23:50:53,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:53,226 INFO L225 Difference]: With dead ends: 12234 [2021-01-06 23:50:53,226 INFO L226 Difference]: Without dead ends: 12212 [2021-01-06 23:50:53,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-01-06 23:50:53,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12212 states. [2021-01-06 23:50:53,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12212 to 8342. [2021-01-06 23:50:53,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8342 states. [2021-01-06 23:50:53,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8342 states to 8342 states and 38278 transitions. [2021-01-06 23:50:53,646 INFO L78 Accepts]: Start accepts. Automaton has 8342 states and 38278 transitions. Word has length 17 [2021-01-06 23:50:53,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:53,646 INFO L481 AbstractCegarLoop]: Abstraction has 8342 states and 38278 transitions. [2021-01-06 23:50:53,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:50:53,646 INFO L276 IsEmpty]: Start isEmpty. Operand 8342 states and 38278 transitions. [2021-01-06 23:50:53,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:50:53,647 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:53,648 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:53,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:53,849 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:50:53,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:53,849 INFO L82 PathProgramCache]: Analyzing trace with hash -658508568, now seen corresponding path program 1 times [2021-01-06 23:50:53,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:53,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214064668] [2021-01-06 23:50:53,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:54,068 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:54,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214064668] [2021-01-06 23:50:54,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172768877] [2021-01-06 23:50:54,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:54,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 23:50:54,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:54,313 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-06 23:50:54,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:54,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2021-01-06 23:50:54,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362066549] [2021-01-06 23:50:54,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:50:54,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:54,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:50:54,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2021-01-06 23:50:54,316 INFO L87 Difference]: Start difference. First operand 8342 states and 38278 transitions. Second operand 7 states. [2021-01-06 23:50:54,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:54,803 INFO L93 Difference]: Finished difference Result 19016 states and 76191 transitions. [2021-01-06 23:50:54,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:50:54,804 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2021-01-06 23:50:54,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:54,857 INFO L225 Difference]: With dead ends: 19016 [2021-01-06 23:50:54,857 INFO L226 Difference]: Without dead ends: 18998 [2021-01-06 23:50:54,858 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2021-01-06 23:50:55,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18998 states. [2021-01-06 23:50:55,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18998 to 8452. [2021-01-06 23:50:55,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8452 states. [2021-01-06 23:50:55,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8452 states to 8452 states and 38704 transitions. [2021-01-06 23:50:55,412 INFO L78 Accepts]: Start accepts. Automaton has 8452 states and 38704 transitions. Word has length 19 [2021-01-06 23:50:55,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:55,413 INFO L481 AbstractCegarLoop]: Abstraction has 8452 states and 38704 transitions. [2021-01-06 23:50:55,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:50:55,413 INFO L276 IsEmpty]: Start isEmpty. Operand 8452 states and 38704 transitions. [2021-01-06 23:50:55,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:50:55,414 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:55,414 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:55,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-01-06 23:50:55,615 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:50:55,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:55,616 INFO L82 PathProgramCache]: Analyzing trace with hash -655410304, now seen corresponding path program 1 times [2021-01-06 23:50:55,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:55,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411658741] [2021-01-06 23:50:55,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:55,823 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:55,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411658741] [2021-01-06 23:50:55,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50874681] [2021-01-06 23:50:55,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:55,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:55,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 12 conjunts are in the unsatisfiable core [2021-01-06 23:50:55,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:56,161 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:56,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:50:56,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-01-06 23:50:56,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648671509] [2021-01-06 23:50:56,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-01-06 23:50:56,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:56,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-01-06 23:50:56,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2021-01-06 23:50:56,164 INFO L87 Difference]: Start difference. First operand 8452 states and 38704 transitions. Second operand 19 states. [2021-01-06 23:50:57,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:57,616 INFO L93 Difference]: Finished difference Result 21120 states and 84426 transitions. [2021-01-06 23:50:57,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-06 23:50:57,616 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 19 [2021-01-06 23:50:57,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:57,671 INFO L225 Difference]: With dead ends: 21120 [2021-01-06 23:50:57,671 INFO L226 Difference]: Without dead ends: 21077 [2021-01-06 23:50:57,672 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=378, Invalid=1182, Unknown=0, NotChecked=0, Total=1560 [2021-01-06 23:50:57,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21077 states. [2021-01-06 23:50:58,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21077 to 8480. [2021-01-06 23:50:58,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8480 states. [2021-01-06 23:50:58,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8480 states to 8480 states and 38825 transitions. [2021-01-06 23:50:58,214 INFO L78 Accepts]: Start accepts. Automaton has 8480 states and 38825 transitions. Word has length 19 [2021-01-06 23:50:58,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:58,214 INFO L481 AbstractCegarLoop]: Abstraction has 8480 states and 38825 transitions. [2021-01-06 23:50:58,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-01-06 23:50:58,214 INFO L276 IsEmpty]: Start isEmpty. Operand 8480 states and 38825 transitions. [2021-01-06 23:50:58,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:50:58,215 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:58,215 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:58,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-01-06 23:50:58,430 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:50:58,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:58,430 INFO L82 PathProgramCache]: Analyzing trace with hash -640741848, now seen corresponding path program 2 times [2021-01-06 23:50:58,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:58,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551376745] [2021-01-06 23:50:58,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:58,533 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:58,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551376745] [2021-01-06 23:50:58,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507698860] [2021-01-06 23:50:58,534 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:58,666 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:50:58,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:50:58,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2021-01-06 23:50:58,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:58,793 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-06 23:50:58,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:58,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2021-01-06 23:50:58,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439971338] [2021-01-06 23:50:58,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:50:58,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:58,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:50:58,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2021-01-06 23:50:58,795 INFO L87 Difference]: Start difference. First operand 8480 states and 38825 transitions. Second operand 7 states. [2021-01-06 23:50:59,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:59,419 INFO L93 Difference]: Finished difference Result 19852 states and 79846 transitions. [2021-01-06 23:50:59,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:50:59,420 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2021-01-06 23:50:59,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:59,486 INFO L225 Difference]: With dead ends: 19852 [2021-01-06 23:50:59,486 INFO L226 Difference]: Without dead ends: 19827 [2021-01-06 23:50:59,486 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2021-01-06 23:50:59,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19827 states. [2021-01-06 23:50:59,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19827 to 8379. [2021-01-06 23:50:59,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8379 states. [2021-01-06 23:51:00,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8379 states to 8379 states and 38406 transitions. [2021-01-06 23:51:00,014 INFO L78 Accepts]: Start accepts. Automaton has 8379 states and 38406 transitions. Word has length 19 [2021-01-06 23:51:00,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:00,014 INFO L481 AbstractCegarLoop]: Abstraction has 8379 states and 38406 transitions. [2021-01-06 23:51:00,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:51:00,014 INFO L276 IsEmpty]: Start isEmpty. Operand 8379 states and 38406 transitions. [2021-01-06 23:51:00,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:51:00,016 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:00,016 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:00,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2021-01-06 23:51:00,232 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:51:00,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:00,233 INFO L82 PathProgramCache]: Analyzing trace with hash -640738624, now seen corresponding path program 2 times [2021-01-06 23:51:00,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:00,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230595584] [2021-01-06 23:51:00,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:00,336 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:51:00,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230595584] [2021-01-06 23:51:00,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450471480] [2021-01-06 23:51:00,336 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:00,454 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:51:00,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:00,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 23:51:00,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:00,591 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-06 23:51:00,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:00,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2021-01-06 23:51:00,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339008711] [2021-01-06 23:51:00,592 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:51:00,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:00,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:51:00,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2021-01-06 23:51:00,593 INFO L87 Difference]: Start difference. First operand 8379 states and 38406 transitions. Second operand 7 states. [2021-01-06 23:51:01,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:01,218 INFO L93 Difference]: Finished difference Result 19555 states and 78564 transitions. [2021-01-06 23:51:01,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:51:01,219 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2021-01-06 23:51:01,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:01,273 INFO L225 Difference]: With dead ends: 19555 [2021-01-06 23:51:01,274 INFO L226 Difference]: Without dead ends: 19530 [2021-01-06 23:51:01,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2021-01-06 23:51:01,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19530 states. [2021-01-06 23:51:01,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19530 to 8317. [2021-01-06 23:51:01,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8317 states. [2021-01-06 23:51:01,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8317 states to 8317 states and 38184 transitions. [2021-01-06 23:51:01,744 INFO L78 Accepts]: Start accepts. Automaton has 8317 states and 38184 transitions. Word has length 19 [2021-01-06 23:51:01,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:01,745 INFO L481 AbstractCegarLoop]: Abstraction has 8317 states and 38184 transitions. [2021-01-06 23:51:01,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:51:01,745 INFO L276 IsEmpty]: Start isEmpty. Operand 8317 states and 38184 transitions. [2021-01-06 23:51:01,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:51:01,746 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:01,746 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:01,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:01,947 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:51:01,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:01,948 INFO L82 PathProgramCache]: Analyzing trace with hash -775503288, now seen corresponding path program 1 times [2021-01-06 23:51:01,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:01,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233911427] [2021-01-06 23:51:01,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:02,015 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-06 23:51:02,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233911427] [2021-01-06 23:51:02,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986403303] [2021-01-06 23:51:02,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:02,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 23:51:02,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:02,214 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 23:51:02,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:02,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2021-01-06 23:51:02,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043384381] [2021-01-06 23:51:02,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:51:02,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:02,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:51:02,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-01-06 23:51:02,216 INFO L87 Difference]: Start difference. First operand 8317 states and 38184 transitions. Second operand 5 states. [2021-01-06 23:51:02,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:02,424 INFO L93 Difference]: Finished difference Result 14141 states and 61627 transitions. [2021-01-06 23:51:02,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:51:02,424 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2021-01-06 23:51:02,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:02,464 INFO L225 Difference]: With dead ends: 14141 [2021-01-06 23:51:02,464 INFO L226 Difference]: Without dead ends: 14110 [2021-01-06 23:51:02,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-01-06 23:51:02,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14110 states. [2021-01-06 23:51:02,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14110 to 10049. [2021-01-06 23:51:02,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10049 states. [2021-01-06 23:51:03,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10049 states to 10049 states and 46134 transitions. [2021-01-06 23:51:03,035 INFO L78 Accepts]: Start accepts. Automaton has 10049 states and 46134 transitions. Word has length 21 [2021-01-06 23:51:03,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:03,035 INFO L481 AbstractCegarLoop]: Abstraction has 10049 states and 46134 transitions. [2021-01-06 23:51:03,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:51:03,035 INFO L276 IsEmpty]: Start isEmpty. Operand 10049 states and 46134 transitions. [2021-01-06 23:51:03,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:51:03,037 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:03,037 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:03,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-01-06 23:51:03,248 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:51:03,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:03,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1481211108, now seen corresponding path program 1 times [2021-01-06 23:51:03,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:03,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119713398] [2021-01-06 23:51:03,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:03,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:03,373 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:51:03,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119713398] [2021-01-06 23:51:03,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392243535] [2021-01-06 23:51:03,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:03,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 23:51:03,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:03,903 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-06 23:51:03,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:03,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 18 [2021-01-06 23:51:03,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334820184] [2021-01-06 23:51:03,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:51:03,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:03,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:51:03,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2021-01-06 23:51:03,905 INFO L87 Difference]: Start difference. First operand 10049 states and 46134 transitions. Second operand 9 states. [2021-01-06 23:51:05,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:05,047 INFO L93 Difference]: Finished difference Result 30333 states and 116117 transitions. [2021-01-06 23:51:05,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:51:05,048 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2021-01-06 23:51:05,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:05,126 INFO L225 Difference]: With dead ends: 30333 [2021-01-06 23:51:05,126 INFO L226 Difference]: Without dead ends: 30315 [2021-01-06 23:51:05,127 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=442, Invalid=1364, Unknown=0, NotChecked=0, Total=1806 [2021-01-06 23:51:05,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30315 states. [2021-01-06 23:51:05,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30315 to 9884. [2021-01-06 23:51:05,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9884 states. [2021-01-06 23:51:05,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9884 states to 9884 states and 45329 transitions. [2021-01-06 23:51:05,728 INFO L78 Accepts]: Start accepts. Automaton has 9884 states and 45329 transitions. Word has length 21 [2021-01-06 23:51:05,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:05,729 INFO L481 AbstractCegarLoop]: Abstraction has 9884 states and 45329 transitions. [2021-01-06 23:51:05,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:51:05,729 INFO L276 IsEmpty]: Start isEmpty. Operand 9884 states and 45329 transitions. [2021-01-06 23:51:05,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:51:05,730 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:05,730 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:05,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:05,932 INFO L429 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:51:05,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:05,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1466539428, now seen corresponding path program 2 times [2021-01-06 23:51:05,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:05,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25916836] [2021-01-06 23:51:05,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:05,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:06,052 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:51:06,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25916836] [2021-01-06 23:51:06,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471793244] [2021-01-06 23:51:06,053 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:06,186 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:51:06,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:06,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 23:51:06,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:06,403 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-06 23:51:06,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:06,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 18 [2021-01-06 23:51:06,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328686934] [2021-01-06 23:51:06,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:51:06,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:06,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:51:06,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2021-01-06 23:51:06,405 INFO L87 Difference]: Start difference. First operand 9884 states and 45329 transitions. Second operand 9 states. [2021-01-06 23:51:06,839 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2021-01-06 23:51:07,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:07,759 INFO L93 Difference]: Finished difference Result 29916 states and 114355 transitions. [2021-01-06 23:51:07,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:51:07,760 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2021-01-06 23:51:07,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:07,864 INFO L225 Difference]: With dead ends: 29916 [2021-01-06 23:51:07,864 INFO L226 Difference]: Without dead ends: 29894 [2021-01-06 23:51:07,865 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=442, Invalid=1364, Unknown=0, NotChecked=0, Total=1806 [2021-01-06 23:51:08,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29894 states. [2021-01-06 23:51:08,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29894 to 9719. [2021-01-06 23:51:08,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9719 states. [2021-01-06 23:51:08,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9719 states to 9719 states and 44527 transitions. [2021-01-06 23:51:08,548 INFO L78 Accepts]: Start accepts. Automaton has 9719 states and 44527 transitions. Word has length 21 [2021-01-06 23:51:08,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:08,548 INFO L481 AbstractCegarLoop]: Abstraction has 9719 states and 44527 transitions. [2021-01-06 23:51:08,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:51:08,548 INFO L276 IsEmpty]: Start isEmpty. Operand 9719 states and 44527 transitions. [2021-01-06 23:51:08,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:51:08,550 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:08,550 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:08,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-01-06 23:51:08,751 INFO L429 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:51:08,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:08,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1493122332, now seen corresponding path program 3 times [2021-01-06 23:51:08,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:08,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965487982] [2021-01-06 23:51:08,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:09,039 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:51:09,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965487982] [2021-01-06 23:51:09,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293408840] [2021-01-06 23:51:09,040 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:09,147 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-01-06 23:51:09,148 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:09,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:51:09,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:09,353 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-06 23:51:09,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:09,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 18 [2021-01-06 23:51:09,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253677109] [2021-01-06 23:51:09,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:51:09,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:09,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:51:09,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2021-01-06 23:51:09,355 INFO L87 Difference]: Start difference. First operand 9719 states and 44527 transitions. Second operand 9 states. [2021-01-06 23:51:10,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:10,549 INFO L93 Difference]: Finished difference Result 29973 states and 114573 transitions. [2021-01-06 23:51:10,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:51:10,549 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2021-01-06 23:51:10,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:10,638 INFO L225 Difference]: With dead ends: 29973 [2021-01-06 23:51:10,638 INFO L226 Difference]: Without dead ends: 29955 [2021-01-06 23:51:10,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=442, Invalid=1364, Unknown=0, NotChecked=0, Total=1806 [2021-01-06 23:51:10,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29955 states. [2021-01-06 23:51:11,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29955 to 9420. [2021-01-06 23:51:11,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9420 states. [2021-01-06 23:51:11,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9420 states to 9420 states and 43170 transitions. [2021-01-06 23:51:11,262 INFO L78 Accepts]: Start accepts. Automaton has 9420 states and 43170 transitions. Word has length 21 [2021-01-06 23:51:11,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:11,262 INFO L481 AbstractCegarLoop]: Abstraction has 9420 states and 43170 transitions. [2021-01-06 23:51:11,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:51:11,262 INFO L276 IsEmpty]: Start isEmpty. Operand 9420 states and 43170 transitions. [2021-01-06 23:51:11,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:51:11,264 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:11,264 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:11,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-01-06 23:51:11,465 INFO L429 AbstractCegarLoop]: === Iteration 15 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:51:11,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:11,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1510889052, now seen corresponding path program 4 times [2021-01-06 23:51:11,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:11,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981474342] [2021-01-06 23:51:11,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:11,604 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:51:11,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981474342] [2021-01-06 23:51:11,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813619769] [2021-01-06 23:51:11,605 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:11,751 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 23:51:11,751 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:11,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 23:51:11,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:12,024 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:51:12,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:51:12,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2021-01-06 23:51:12,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969167794] [2021-01-06 23:51:12,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-01-06 23:51:12,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:12,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-01-06 23:51:12,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2021-01-06 23:51:12,026 INFO L87 Difference]: Start difference. First operand 9420 states and 43170 transitions. Second operand 23 states. [2021-01-06 23:51:13,059 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2021-01-06 23:51:15,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:15,001 INFO L93 Difference]: Finished difference Result 35304 states and 132345 transitions. [2021-01-06 23:51:15,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-01-06 23:51:15,002 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 21 [2021-01-06 23:51:15,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:15,094 INFO L225 Difference]: With dead ends: 35304 [2021-01-06 23:51:15,094 INFO L226 Difference]: Without dead ends: 35268 [2021-01-06 23:51:15,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1770 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1215, Invalid=4485, Unknown=0, NotChecked=0, Total=5700 [2021-01-06 23:51:15,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35268 states. [2021-01-06 23:51:15,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35268 to 9255. [2021-01-06 23:51:15,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9255 states. [2021-01-06 23:51:15,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9255 states to 9255 states and 42368 transitions. [2021-01-06 23:51:15,779 INFO L78 Accepts]: Start accepts. Automaton has 9255 states and 42368 transitions. Word has length 21 [2021-01-06 23:51:15,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:15,779 INFO L481 AbstractCegarLoop]: Abstraction has 9255 states and 42368 transitions. [2021-01-06 23:51:15,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2021-01-06 23:51:15,779 INFO L276 IsEmpty]: Start isEmpty. Operand 9255 states and 42368 transitions. [2021-01-06 23:51:15,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:51:15,781 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:15,781 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:15,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-01-06 23:51:15,982 INFO L429 AbstractCegarLoop]: === Iteration 16 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:51:15,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:15,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1572590692, now seen corresponding path program 5 times [2021-01-06 23:51:15,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:15,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7411003] [2021-01-06 23:51:15,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:16,096 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:51:16,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7411003] [2021-01-06 23:51:16,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664689653] [2021-01-06 23:51:16,097 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:16,212 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-01-06 23:51:16,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:16,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 23:51:16,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:16,415 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-06 23:51:16,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:16,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 18 [2021-01-06 23:51:16,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983489205] [2021-01-06 23:51:16,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:51:16,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:16,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:51:16,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2021-01-06 23:51:16,417 INFO L87 Difference]: Start difference. First operand 9255 states and 42368 transitions. Second operand 9 states. [2021-01-06 23:51:17,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:17,728 INFO L93 Difference]: Finished difference Result 29788 states and 113841 transitions. [2021-01-06 23:51:17,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:51:17,729 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2021-01-06 23:51:17,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:17,819 INFO L225 Difference]: With dead ends: 29788 [2021-01-06 23:51:17,819 INFO L226 Difference]: Without dead ends: 29770 [2021-01-06 23:51:17,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=442, Invalid=1364, Unknown=0, NotChecked=0, Total=1806 [2021-01-06 23:51:17,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29770 states. [2021-01-06 23:51:18,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29770 to 8964. [2021-01-06 23:51:18,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8964 states. [2021-01-06 23:51:18,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8964 states to 8964 states and 41031 transitions. [2021-01-06 23:51:18,499 INFO L78 Accepts]: Start accepts. Automaton has 8964 states and 41031 transitions. Word has length 21 [2021-01-06 23:51:18,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:18,500 INFO L481 AbstractCegarLoop]: Abstraction has 8964 states and 41031 transitions. [2021-01-06 23:51:18,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:51:18,500 INFO L276 IsEmpty]: Start isEmpty. Operand 8964 states and 41031 transitions. [2021-01-06 23:51:18,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:51:18,502 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:18,502 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:18,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-01-06 23:51:18,717 INFO L429 AbstractCegarLoop]: === Iteration 17 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:51:18,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:18,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1569495652, now seen corresponding path program 6 times [2021-01-06 23:51:18,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:18,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694742648] [2021-01-06 23:51:18,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:18,841 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:51:18,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694742648] [2021-01-06 23:51:18,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044104029] [2021-01-06 23:51:18,841 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:18,957 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-01-06 23:51:18,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:18,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 23:51:18,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:19,126 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-06 23:51:19,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:19,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 18 [2021-01-06 23:51:19,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918670345] [2021-01-06 23:51:19,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:51:19,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:19,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:51:19,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2021-01-06 23:51:19,127 INFO L87 Difference]: Start difference. First operand 8964 states and 41031 transitions. Second operand 9 states. [2021-01-06 23:51:20,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:20,456 INFO L93 Difference]: Finished difference Result 29379 states and 112099 transitions. [2021-01-06 23:51:20,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:51:20,457 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2021-01-06 23:51:20,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:20,535 INFO L225 Difference]: With dead ends: 29379 [2021-01-06 23:51:20,535 INFO L226 Difference]: Without dead ends: 29356 [2021-01-06 23:51:20,535 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=442, Invalid=1364, Unknown=0, NotChecked=0, Total=1806 [2021-01-06 23:51:20,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29356 states. [2021-01-06 23:51:21,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29356 to 8573. [2021-01-06 23:51:21,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8573 states. [2021-01-06 23:51:21,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8573 states to 8573 states and 39353 transitions. [2021-01-06 23:51:21,243 INFO L78 Accepts]: Start accepts. Automaton has 8573 states and 39353 transitions. Word has length 21 [2021-01-06 23:51:21,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:21,243 INFO L481 AbstractCegarLoop]: Abstraction has 8573 states and 39353 transitions. [2021-01-06 23:51:21,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:51:21,243 INFO L276 IsEmpty]: Start isEmpty. Operand 8573 states and 39353 transitions. [2021-01-06 23:51:21,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-01-06 23:51:21,245 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:21,245 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:21,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-01-06 23:51:21,446 INFO L429 AbstractCegarLoop]: === Iteration 18 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:51:21,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:21,447 INFO L82 PathProgramCache]: Analyzing trace with hash 2048893540, now seen corresponding path program 1 times [2021-01-06 23:51:21,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:21,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69466259] [2021-01-06 23:51:21,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:21,553 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:51:21,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69466259] [2021-01-06 23:51:21,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844535896] [2021-01-06 23:51:21,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:21,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:21,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 23:51:21,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:21,823 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 23:51:21,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:21,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2021-01-06 23:51:21,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139725058] [2021-01-06 23:51:21,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:51:21,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:21,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:51:21,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2021-01-06 23:51:21,825 INFO L87 Difference]: Start difference. First operand 8573 states and 39353 transitions. Second operand 7 states. [2021-01-06 23:51:22,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:22,491 INFO L93 Difference]: Finished difference Result 19727 states and 80274 transitions. [2021-01-06 23:51:22,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:51:22,492 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2021-01-06 23:51:22,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:22,559 INFO L225 Difference]: With dead ends: 19727 [2021-01-06 23:51:22,560 INFO L226 Difference]: Without dead ends: 19703 [2021-01-06 23:51:22,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2021-01-06 23:51:22,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19703 states. [2021-01-06 23:51:22,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19703 to 8847. [2021-01-06 23:51:22,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8847 states. [2021-01-06 23:51:22,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8847 states to 8847 states and 40495 transitions. [2021-01-06 23:51:22,996 INFO L78 Accepts]: Start accepts. Automaton has 8847 states and 40495 transitions. Word has length 23 [2021-01-06 23:51:22,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:22,996 INFO L481 AbstractCegarLoop]: Abstraction has 8847 states and 40495 transitions. [2021-01-06 23:51:22,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:51:22,996 INFO L276 IsEmpty]: Start isEmpty. Operand 8847 states and 40495 transitions. [2021-01-06 23:51:22,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-01-06 23:51:23,000 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:23,000 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:23,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-01-06 23:51:23,201 INFO L429 AbstractCegarLoop]: === Iteration 19 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:51:23,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:23,202 INFO L82 PathProgramCache]: Analyzing trace with hash 2065648420, now seen corresponding path program 2 times [2021-01-06 23:51:23,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:23,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912486820] [2021-01-06 23:51:23,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:23,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:23,312 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:51:23,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912486820] [2021-01-06 23:51:23,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518875731] [2021-01-06 23:51:23,313 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:23,629 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:51:23,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:23,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 23:51:23,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:23,767 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 23:51:23,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:23,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2021-01-06 23:51:23,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754360815] [2021-01-06 23:51:23,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:51:23,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:23,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:51:23,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2021-01-06 23:51:23,769 INFO L87 Difference]: Start difference. First operand 8847 states and 40495 transitions. Second operand 7 states. [2021-01-06 23:51:24,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:24,266 INFO L93 Difference]: Finished difference Result 20209 states and 82213 transitions. [2021-01-06 23:51:24,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:51:24,266 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2021-01-06 23:51:24,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:24,315 INFO L225 Difference]: With dead ends: 20209 [2021-01-06 23:51:24,315 INFO L226 Difference]: Without dead ends: 20172 [2021-01-06 23:51:24,315 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2021-01-06 23:51:24,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20172 states. [2021-01-06 23:51:24,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20172 to 8496. [2021-01-06 23:51:24,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8496 states. [2021-01-06 23:51:24,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8496 states to 8496 states and 38896 transitions. [2021-01-06 23:51:24,845 INFO L78 Accepts]: Start accepts. Automaton has 8496 states and 38896 transitions. Word has length 23 [2021-01-06 23:51:24,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:24,845 INFO L481 AbstractCegarLoop]: Abstraction has 8496 states and 38896 transitions. [2021-01-06 23:51:24,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:51:24,845 INFO L276 IsEmpty]: Start isEmpty. Operand 8496 states and 38896 transitions. [2021-01-06 23:51:24,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-01-06 23:51:24,851 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:24,851 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:25,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2021-01-06 23:51:25,058 INFO L429 AbstractCegarLoop]: === Iteration 20 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:51:25,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:25,058 INFO L82 PathProgramCache]: Analyzing trace with hash 2065651644, now seen corresponding path program 1 times [2021-01-06 23:51:25,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:25,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334468633] [2021-01-06 23:51:25,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:25,155 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:51:25,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334468633] [2021-01-06 23:51:25,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652399506] [2021-01-06 23:51:25,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:25,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:25,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 23:51:25,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:25,420 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 23:51:25,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:25,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2021-01-06 23:51:25,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064119980] [2021-01-06 23:51:25,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:51:25,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:25,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:51:25,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2021-01-06 23:51:25,423 INFO L87 Difference]: Start difference. First operand 8496 states and 38896 transitions. Second operand 7 states. [2021-01-06 23:51:25,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:25,871 INFO L93 Difference]: Finished difference Result 20488 states and 83323 transitions. [2021-01-06 23:51:25,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:51:25,872 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2021-01-06 23:51:25,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:26,079 INFO L225 Difference]: With dead ends: 20488 [2021-01-06 23:51:26,079 INFO L226 Difference]: Without dead ends: 20451 [2021-01-06 23:51:26,080 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2021-01-06 23:51:26,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20451 states. [2021-01-06 23:51:26,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20451 to 8768. [2021-01-06 23:51:26,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8768 states. [2021-01-06 23:51:26,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8768 states to 8768 states and 40121 transitions. [2021-01-06 23:51:26,449 INFO L78 Accepts]: Start accepts. Automaton has 8768 states and 40121 transitions. Word has length 23 [2021-01-06 23:51:26,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:26,449 INFO L481 AbstractCegarLoop]: Abstraction has 8768 states and 40121 transitions. [2021-01-06 23:51:26,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:51:26,450 INFO L276 IsEmpty]: Start isEmpty. Operand 8768 states and 40121 transitions. [2021-01-06 23:51:26,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-01-06 23:51:26,452 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:26,452 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:26,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:26,653 INFO L429 AbstractCegarLoop]: === Iteration 21 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:51:26,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:26,653 INFO L82 PathProgramCache]: Analyzing trace with hash 2065666927, now seen corresponding path program 1 times [2021-01-06 23:51:26,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:26,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689026871] [2021-01-06 23:51:26,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:26,755 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:51:26,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689026871] [2021-01-06 23:51:26,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369996120] [2021-01-06 23:51:26,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:26,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 23:51:26,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:27,046 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 23:51:27,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:27,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2021-01-06 23:51:27,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303594649] [2021-01-06 23:51:27,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:51:27,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:27,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:51:27,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2021-01-06 23:51:27,048 INFO L87 Difference]: Start difference. First operand 8768 states and 40121 transitions. Second operand 7 states. [2021-01-06 23:51:27,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:27,719 INFO L93 Difference]: Finished difference Result 20313 states and 82544 transitions. [2021-01-06 23:51:27,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:51:27,720 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2021-01-06 23:51:27,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:27,779 INFO L225 Difference]: With dead ends: 20313 [2021-01-06 23:51:27,779 INFO L226 Difference]: Without dead ends: 20276 [2021-01-06 23:51:27,779 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2021-01-06 23:51:27,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20276 states. [2021-01-06 23:51:28,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20276 to 9144. [2021-01-06 23:51:28,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9144 states. [2021-01-06 23:51:28,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9144 states to 9144 states and 41753 transitions. [2021-01-06 23:51:28,380 INFO L78 Accepts]: Start accepts. Automaton has 9144 states and 41753 transitions. Word has length 23 [2021-01-06 23:51:28,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:28,381 INFO L481 AbstractCegarLoop]: Abstraction has 9144 states and 41753 transitions. [2021-01-06 23:51:28,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:51:28,381 INFO L276 IsEmpty]: Start isEmpty. Operand 9144 states and 41753 transitions. [2021-01-06 23:51:28,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-01-06 23:51:28,385 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:28,385 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:28,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,40 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:28,594 INFO L429 AbstractCegarLoop]: === Iteration 22 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:51:28,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:28,595 INFO L82 PathProgramCache]: Analyzing trace with hash 2051991804, now seen corresponding path program 2 times [2021-01-06 23:51:28,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:28,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189988983] [2021-01-06 23:51:28,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:28,703 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:51:28,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189988983] [2021-01-06 23:51:28,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615850752] [2021-01-06 23:51:28,704 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:28,831 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:51:28,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:28,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2021-01-06 23:51:28,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:28,989 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 23:51:28,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:28,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2021-01-06 23:51:28,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829574225] [2021-01-06 23:51:28,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:51:28,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:28,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:51:28,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2021-01-06 23:51:28,990 INFO L87 Difference]: Start difference. First operand 9144 states and 41753 transitions. Second operand 7 states. [2021-01-06 23:51:29,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:29,516 INFO L93 Difference]: Finished difference Result 20485 states and 83152 transitions. [2021-01-06 23:51:29,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:51:29,517 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2021-01-06 23:51:29,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:29,573 INFO L225 Difference]: With dead ends: 20485 [2021-01-06 23:51:29,574 INFO L226 Difference]: Without dead ends: 20457 [2021-01-06 23:51:29,574 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2021-01-06 23:51:29,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20457 states. [2021-01-06 23:51:30,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20457 to 9331. [2021-01-06 23:51:30,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9331 states. [2021-01-06 23:51:30,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9331 states to 9331 states and 42574 transitions. [2021-01-06 23:51:30,128 INFO L78 Accepts]: Start accepts. Automaton has 9331 states and 42574 transitions. Word has length 23 [2021-01-06 23:51:30,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:30,128 INFO L481 AbstractCegarLoop]: Abstraction has 9331 states and 42574 transitions. [2021-01-06 23:51:30,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:51:30,128 INFO L276 IsEmpty]: Start isEmpty. Operand 9331 states and 42574 transitions. [2021-01-06 23:51:30,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-01-06 23:51:30,131 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:30,131 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:30,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:30,332 INFO L429 AbstractCegarLoop]: === Iteration 23 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:51:30,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:30,333 INFO L82 PathProgramCache]: Analyzing trace with hash 2066678767, now seen corresponding path program 2 times [2021-01-06 23:51:30,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:30,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089454133] [2021-01-06 23:51:30,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:30,440 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:51:30,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089454133] [2021-01-06 23:51:30,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363989920] [2021-01-06 23:51:30,440 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:30,559 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:51:30,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:30,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 23:51:30,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:30,706 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 23:51:30,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:30,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2021-01-06 23:51:30,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201173815] [2021-01-06 23:51:30,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:51:30,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:30,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:51:30,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2021-01-06 23:51:30,708 INFO L87 Difference]: Start difference. First operand 9331 states and 42574 transitions. Second operand 7 states. [2021-01-06 23:51:31,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:31,411 INFO L93 Difference]: Finished difference Result 21187 states and 86251 transitions. [2021-01-06 23:51:31,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:51:31,412 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2021-01-06 23:51:31,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:31,471 INFO L225 Difference]: With dead ends: 21187 [2021-01-06 23:51:31,472 INFO L226 Difference]: Without dead ends: 21150 [2021-01-06 23:51:31,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2021-01-06 23:51:31,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21150 states. [2021-01-06 23:51:31,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21150 to 9426. [2021-01-06 23:51:31,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9426 states. [2021-01-06 23:51:31,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9426 states to 9426 states and 43057 transitions. [2021-01-06 23:51:31,832 INFO L78 Accepts]: Start accepts. Automaton has 9426 states and 43057 transitions. Word has length 23 [2021-01-06 23:51:31,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:31,832 INFO L481 AbstractCegarLoop]: Abstraction has 9426 states and 43057 transitions. [2021-01-06 23:51:31,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:51:31,833 INFO L276 IsEmpty]: Start isEmpty. Operand 9426 states and 43057 transitions. [2021-01-06 23:51:31,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:51:31,836 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:31,836 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:32,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-01-06 23:51:32,037 INFO L429 AbstractCegarLoop]: === Iteration 24 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:51:32,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:32,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1711227692, now seen corresponding path program 1 times [2021-01-06 23:51:32,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:32,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043990833] [2021-01-06 23:51:32,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:32,102 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 23:51:32,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043990833] [2021-01-06 23:51:32,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921716628] [2021-01-06 23:51:32,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:32,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:32,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 23:51:32,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:32,480 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-01-06 23:51:32,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:32,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2021-01-06 23:51:32,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042435375] [2021-01-06 23:51:32,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:51:32,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:32,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:51:32,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-01-06 23:51:32,482 INFO L87 Difference]: Start difference. First operand 9426 states and 43057 transitions. Second operand 5 states. [2021-01-06 23:51:32,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:32,722 INFO L93 Difference]: Finished difference Result 15105 states and 66484 transitions. [2021-01-06 23:51:32,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:51:32,722 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2021-01-06 23:51:32,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:32,769 INFO L225 Difference]: With dead ends: 15105 [2021-01-06 23:51:32,769 INFO L226 Difference]: Without dead ends: 15073 [2021-01-06 23:51:32,769 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-01-06 23:51:32,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15073 states. [2021-01-06 23:51:33,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15073 to 11239. [2021-01-06 23:51:33,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11239 states. [2021-01-06 23:51:33,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11239 states to 11239 states and 51146 transitions. [2021-01-06 23:51:33,343 INFO L78 Accepts]: Start accepts. Automaton has 11239 states and 51146 transitions. Word has length 25 [2021-01-06 23:51:33,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:33,343 INFO L481 AbstractCegarLoop]: Abstraction has 11239 states and 51146 transitions. [2021-01-06 23:51:33,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:51:33,343 INFO L276 IsEmpty]: Start isEmpty. Operand 11239 states and 51146 transitions. [2021-01-06 23:51:33,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:51:33,349 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:33,349 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:33,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:33,558 INFO L429 AbstractCegarLoop]: === Iteration 25 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:51:33,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:33,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1891672280, now seen corresponding path program 1 times [2021-01-06 23:51:33,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:33,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076618626] [2021-01-06 23:51:33,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:33,701 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:51:33,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076618626] [2021-01-06 23:51:33,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441673348] [2021-01-06 23:51:33,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:33,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 23:51:33,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:34,038 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 23:51:34,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:34,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:51:34,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099265587] [2021-01-06 23:51:34,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:51:34,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:34,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:51:34,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:51:34,040 INFO L87 Difference]: Start difference. First operand 11239 states and 51146 transitions. Second operand 9 states. [2021-01-06 23:51:35,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:35,416 INFO L93 Difference]: Finished difference Result 33877 states and 131849 transitions. [2021-01-06 23:51:35,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:51:35,417 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:51:35,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:35,519 INFO L225 Difference]: With dead ends: 33877 [2021-01-06 23:51:35,519 INFO L226 Difference]: Without dead ends: 33851 [2021-01-06 23:51:35,519 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:51:35,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33851 states. [2021-01-06 23:51:36,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33851 to 11265. [2021-01-06 23:51:36,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11265 states. [2021-01-06 23:51:36,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11265 states to 11265 states and 51200 transitions. [2021-01-06 23:51:36,228 INFO L78 Accepts]: Start accepts. Automaton has 11265 states and 51200 transitions. Word has length 25 [2021-01-06 23:51:36,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:36,228 INFO L481 AbstractCegarLoop]: Abstraction has 11265 states and 51200 transitions. [2021-01-06 23:51:36,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:51:36,228 INFO L276 IsEmpty]: Start isEmpty. Operand 11265 states and 51200 transitions. [2021-01-06 23:51:36,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:51:36,233 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:36,233 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:36,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:36,448 INFO L429 AbstractCegarLoop]: === Iteration 26 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:51:36,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:36,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1891687563, now seen corresponding path program 1 times [2021-01-06 23:51:36,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:36,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704898499] [2021-01-06 23:51:36,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:36,578 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:51:36,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704898499] [2021-01-06 23:51:36,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983946262] [2021-01-06 23:51:36,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:36,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:36,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 23:51:36,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:36,915 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 23:51:36,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:36,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:51:36,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529384277] [2021-01-06 23:51:36,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:51:36,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:36,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:51:36,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:51:36,916 INFO L87 Difference]: Start difference. First operand 11265 states and 51200 transitions. Second operand 9 states. [2021-01-06 23:51:38,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:38,372 INFO L93 Difference]: Finished difference Result 33443 states and 130105 transitions. [2021-01-06 23:51:38,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:51:38,373 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:51:38,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:38,467 INFO L225 Difference]: With dead ends: 33443 [2021-01-06 23:51:38,467 INFO L226 Difference]: Without dead ends: 33417 [2021-01-06 23:51:38,468 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:51:38,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33417 states. [2021-01-06 23:51:39,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33417 to 11150. [2021-01-06 23:51:39,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11150 states. [2021-01-06 23:51:39,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11150 states to 11150 states and 50594 transitions. [2021-01-06 23:51:39,229 INFO L78 Accepts]: Start accepts. Automaton has 11150 states and 50594 transitions. Word has length 25 [2021-01-06 23:51:39,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:39,230 INFO L481 AbstractCegarLoop]: Abstraction has 11150 states and 50594 transitions. [2021-01-06 23:51:39,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:51:39,230 INFO L276 IsEmpty]: Start isEmpty. Operand 11150 states and 50594 transitions. [2021-01-06 23:51:39,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:51:39,234 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:39,234 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:39,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-01-06 23:51:39,435 INFO L429 AbstractCegarLoop]: === Iteration 27 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:51:39,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:39,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1878012440, now seen corresponding path program 2 times [2021-01-06 23:51:39,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:39,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296018424] [2021-01-06 23:51:39,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:39,583 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:51:39,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296018424] [2021-01-06 23:51:39,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063663198] [2021-01-06 23:51:39,584 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:39,709 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:51:39,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:39,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 23:51:39,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:39,938 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 23:51:39,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:39,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:51:39,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51807995] [2021-01-06 23:51:39,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:51:39,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:39,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:51:39,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:51:39,940 INFO L87 Difference]: Start difference. First operand 11150 states and 50594 transitions. Second operand 9 states. [2021-01-06 23:51:41,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:41,372 INFO L93 Difference]: Finished difference Result 33189 states and 128963 transitions. [2021-01-06 23:51:41,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:51:41,373 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:51:41,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:41,463 INFO L225 Difference]: With dead ends: 33189 [2021-01-06 23:51:41,463 INFO L226 Difference]: Without dead ends: 33161 [2021-01-06 23:51:41,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:51:41,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33161 states. [2021-01-06 23:51:42,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33161 to 10991. [2021-01-06 23:51:42,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10991 states. [2021-01-06 23:51:42,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10991 states to 10991 states and 49794 transitions. [2021-01-06 23:51:42,173 INFO L78 Accepts]: Start accepts. Automaton has 10991 states and 49794 transitions. Word has length 25 [2021-01-06 23:51:42,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:42,173 INFO L481 AbstractCegarLoop]: Abstraction has 10991 states and 49794 transitions. [2021-01-06 23:51:42,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:51:42,173 INFO L276 IsEmpty]: Start isEmpty. Operand 10991 states and 49794 transitions. [2021-01-06 23:51:42,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:51:42,177 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:42,177 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:42,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-01-06 23:51:42,378 INFO L429 AbstractCegarLoop]: === Iteration 28 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:51:42,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:42,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1892699403, now seen corresponding path program 2 times [2021-01-06 23:51:42,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:42,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108235380] [2021-01-06 23:51:42,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:42,510 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:51:42,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108235380] [2021-01-06 23:51:42,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915592368] [2021-01-06 23:51:42,511 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:42,637 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:51:42,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:42,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 23:51:42,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:42,865 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 23:51:42,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:42,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:51:42,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721163795] [2021-01-06 23:51:42,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:51:42,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:42,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:51:42,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:51:42,867 INFO L87 Difference]: Start difference. First operand 10991 states and 49794 transitions. Second operand 9 states. [2021-01-06 23:51:44,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:44,312 INFO L93 Difference]: Finished difference Result 32647 states and 126668 transitions. [2021-01-06 23:51:44,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:51:44,313 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:51:44,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:44,406 INFO L225 Difference]: With dead ends: 32647 [2021-01-06 23:51:44,407 INFO L226 Difference]: Without dead ends: 32619 [2021-01-06 23:51:44,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:51:44,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32619 states. [2021-01-06 23:51:45,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32619 to 10881. [2021-01-06 23:51:45,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10881 states. [2021-01-06 23:51:45,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10881 states to 10881 states and 49235 transitions. [2021-01-06 23:51:45,156 INFO L78 Accepts]: Start accepts. Automaton has 10881 states and 49235 transitions. Word has length 25 [2021-01-06 23:51:45,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:45,156 INFO L481 AbstractCegarLoop]: Abstraction has 10881 states and 49235 transitions. [2021-01-06 23:51:45,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:51:45,156 INFO L276 IsEmpty]: Start isEmpty. Operand 10881 states and 49235 transitions. [2021-01-06 23:51:45,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:51:45,160 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:45,160 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:45,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-01-06 23:51:45,361 INFO L429 AbstractCegarLoop]: === Iteration 29 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:51:45,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:45,362 INFO L82 PathProgramCache]: Analyzing trace with hash 813242776, now seen corresponding path program 3 times [2021-01-06 23:51:45,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:45,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409933449] [2021-01-06 23:51:45,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:45,509 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:51:45,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409933449] [2021-01-06 23:51:45,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882312848] [2021-01-06 23:51:45,510 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:45,639 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-01-06 23:51:45,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:45,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 23:51:45,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:45,868 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 23:51:45,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:45,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:51:45,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907011569] [2021-01-06 23:51:45,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:51:45,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:45,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:51:45,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:51:45,869 INFO L87 Difference]: Start difference. First operand 10881 states and 49235 transitions. Second operand 9 states. [2021-01-06 23:51:47,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:47,409 INFO L93 Difference]: Finished difference Result 32649 states and 126657 transitions. [2021-01-06 23:51:47,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:51:47,409 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:51:47,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:47,499 INFO L225 Difference]: With dead ends: 32649 [2021-01-06 23:51:47,499 INFO L226 Difference]: Without dead ends: 32623 [2021-01-06 23:51:47,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:51:47,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32623 states. [2021-01-06 23:51:48,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32623 to 10608. [2021-01-06 23:51:48,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10608 states. [2021-01-06 23:51:48,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10608 states to 10608 states and 47948 transitions. [2021-01-06 23:51:48,225 INFO L78 Accepts]: Start accepts. Automaton has 10608 states and 47948 transitions. Word has length 25 [2021-01-06 23:51:48,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:48,225 INFO L481 AbstractCegarLoop]: Abstraction has 10608 states and 47948 transitions. [2021-01-06 23:51:48,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:51:48,225 INFO L276 IsEmpty]: Start isEmpty. Operand 10608 states and 47948 transitions. [2021-01-06 23:51:48,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:51:48,230 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:48,230 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:48,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:48,431 INFO L429 AbstractCegarLoop]: === Iteration 30 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:51:48,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:48,432 INFO L82 PathProgramCache]: Analyzing trace with hash 813258059, now seen corresponding path program 3 times [2021-01-06 23:51:48,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:48,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347176381] [2021-01-06 23:51:48,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:48,577 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:51:48,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347176381] [2021-01-06 23:51:48,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595224360] [2021-01-06 23:51:48,577 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:48,707 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-01-06 23:51:48,707 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:48,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 23:51:48,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:48,923 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 23:51:48,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:48,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:51:48,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274741508] [2021-01-06 23:51:48,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:51:48,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:48,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:51:48,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:51:48,925 INFO L87 Difference]: Start difference. First operand 10608 states and 47948 transitions. Second operand 9 states. [2021-01-06 23:51:50,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:50,361 INFO L93 Difference]: Finished difference Result 32110 states and 124409 transitions. [2021-01-06 23:51:50,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:51:50,362 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:51:50,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:50,452 INFO L225 Difference]: With dead ends: 32110 [2021-01-06 23:51:50,452 INFO L226 Difference]: Without dead ends: 32084 [2021-01-06 23:51:50,453 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:51:50,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32084 states. [2021-01-06 23:51:50,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32084 to 10323. [2021-01-06 23:51:50,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10323 states. [2021-01-06 23:51:51,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10323 states to 10323 states and 46617 transitions. [2021-01-06 23:51:51,233 INFO L78 Accepts]: Start accepts. Automaton has 10323 states and 46617 transitions. Word has length 25 [2021-01-06 23:51:51,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:51,233 INFO L481 AbstractCegarLoop]: Abstraction has 10323 states and 46617 transitions. [2021-01-06 23:51:51,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:51:51,234 INFO L276 IsEmpty]: Start isEmpty. Operand 10323 states and 46617 transitions. [2021-01-06 23:51:51,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:51:51,238 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:51,239 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:51,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,49 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:51,454 INFO L429 AbstractCegarLoop]: === Iteration 31 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:51:51,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:51,455 INFO L82 PathProgramCache]: Analyzing trace with hash 816337816, now seen corresponding path program 4 times [2021-01-06 23:51:51,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:51,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334377188] [2021-01-06 23:51:51,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:51,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:51,605 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:51:51,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334377188] [2021-01-06 23:51:51,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205120072] [2021-01-06 23:51:51,606 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:51,735 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 23:51:51,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:51,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:51:51,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:52,064 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:51:52,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:51:52,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-01-06 23:51:52,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782943776] [2021-01-06 23:51:52,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-01-06 23:51:52,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:52,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-01-06 23:51:52,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2021-01-06 23:51:52,066 INFO L87 Difference]: Start difference. First operand 10323 states and 46617 transitions. Second operand 25 states. [2021-01-06 23:51:54,193 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-01-06 23:51:56,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:56,701 INFO L93 Difference]: Finished difference Result 35571 states and 137190 transitions. [2021-01-06 23:51:56,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-01-06 23:51:56,702 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 25 [2021-01-06 23:51:56,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:56,934 INFO L225 Difference]: With dead ends: 35571 [2021-01-06 23:51:56,934 INFO L226 Difference]: Without dead ends: 35514 [2021-01-06 23:51:56,935 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3699 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2079, Invalid=8841, Unknown=0, NotChecked=0, Total=10920 [2021-01-06 23:51:57,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35514 states. [2021-01-06 23:51:57,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35514 to 10243. [2021-01-06 23:51:57,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10243 states. [2021-01-06 23:51:57,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10243 states to 10243 states and 46264 transitions. [2021-01-06 23:51:57,695 INFO L78 Accepts]: Start accepts. Automaton has 10243 states and 46264 transitions. Word has length 25 [2021-01-06 23:51:57,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:57,696 INFO L481 AbstractCegarLoop]: Abstraction has 10243 states and 46264 transitions. [2021-01-06 23:51:57,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-01-06 23:51:57,696 INFO L276 IsEmpty]: Start isEmpty. Operand 10243 states and 46264 transitions. [2021-01-06 23:51:57,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:51:57,705 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:57,705 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:57,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,50 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:57,918 INFO L429 AbstractCegarLoop]: === Iteration 32 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:51:57,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:57,919 INFO L82 PathProgramCache]: Analyzing trace with hash 816356323, now seen corresponding path program 1 times [2021-01-06 23:51:57,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:57,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165741581] [2021-01-06 23:51:57,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:58,063 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:51:58,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165741581] [2021-01-06 23:51:58,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26092677] [2021-01-06 23:51:58,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:58,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 23:51:58,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:58,426 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 23:51:58,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:58,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:51:58,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492646380] [2021-01-06 23:51:58,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:51:58,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:58,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:51:58,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:51:58,428 INFO L87 Difference]: Start difference. First operand 10243 states and 46264 transitions. Second operand 9 states. [2021-01-06 23:51:59,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:59,671 INFO L93 Difference]: Finished difference Result 32141 states and 124784 transitions. [2021-01-06 23:51:59,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:51:59,671 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:51:59,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:59,975 INFO L225 Difference]: With dead ends: 32141 [2021-01-06 23:51:59,975 INFO L226 Difference]: Without dead ends: 32115 [2021-01-06 23:51:59,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:52:00,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32115 states. [2021-01-06 23:52:00,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32115 to 10251. [2021-01-06 23:52:00,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10251 states. [2021-01-06 23:52:00,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10251 states to 10251 states and 46267 transitions. [2021-01-06 23:52:00,471 INFO L78 Accepts]: Start accepts. Automaton has 10251 states and 46267 transitions. Word has length 25 [2021-01-06 23:52:00,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:52:00,472 INFO L481 AbstractCegarLoop]: Abstraction has 10251 states and 46267 transitions. [2021-01-06 23:52:00,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:52:00,472 INFO L276 IsEmpty]: Start isEmpty. Operand 10251 states and 46267 transitions. [2021-01-06 23:52:00,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:52:00,477 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:52:00,477 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:52:00,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,51 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:52:00,678 INFO L429 AbstractCegarLoop]: === Iteration 33 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:52:00,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:52:00,678 INFO L82 PathProgramCache]: Analyzing trace with hash 831024779, now seen corresponding path program 4 times [2021-01-06 23:52:00,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:52:00,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976276267] [2021-01-06 23:52:00,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:52:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:00,828 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:52:00,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976276267] [2021-01-06 23:52:00,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881548641] [2021-01-06 23:52:00,829 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:52:01,072 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 23:52:01,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:52:01,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:52:01,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:52:01,396 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:52:01,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:52:01,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-01-06 23:52:01,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989583683] [2021-01-06 23:52:01,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-01-06 23:52:01,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:52:01,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-01-06 23:52:01,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2021-01-06 23:52:01,404 INFO L87 Difference]: Start difference. First operand 10251 states and 46267 transitions. Second operand 25 states. [2021-01-06 23:52:05,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:52:05,783 INFO L93 Difference]: Finished difference Result 34867 states and 134386 transitions. [2021-01-06 23:52:05,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-01-06 23:52:05,789 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 25 [2021-01-06 23:52:05,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:52:05,881 INFO L225 Difference]: With dead ends: 34867 [2021-01-06 23:52:05,881 INFO L226 Difference]: Without dead ends: 34810 [2021-01-06 23:52:05,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3462 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=2004, Invalid=8298, Unknown=0, NotChecked=0, Total=10302 [2021-01-06 23:52:06,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34810 states. [2021-01-06 23:52:06,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34810 to 10299. [2021-01-06 23:52:06,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10299 states. [2021-01-06 23:52:06,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10299 states to 10299 states and 46501 transitions. [2021-01-06 23:52:06,561 INFO L78 Accepts]: Start accepts. Automaton has 10299 states and 46501 transitions. Word has length 25 [2021-01-06 23:52:06,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:52:06,561 INFO L481 AbstractCegarLoop]: Abstraction has 10299 states and 46501 transitions. [2021-01-06 23:52:06,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-01-06 23:52:06,561 INFO L276 IsEmpty]: Start isEmpty. Operand 10299 states and 46501 transitions. [2021-01-06 23:52:06,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:52:06,565 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:52:06,565 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:52:06,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2021-01-06 23:52:06,767 INFO L429 AbstractCegarLoop]: === Iteration 34 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:52:06,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:52:06,768 INFO L82 PathProgramCache]: Analyzing trace with hash 831028003, now seen corresponding path program 2 times [2021-01-06 23:52:06,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:52:06,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522206545] [2021-01-06 23:52:06,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:52:06,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:06,915 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:52:06,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522206545] [2021-01-06 23:52:06,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044622821] [2021-01-06 23:52:06,916 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:52:07,039 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:52:07,039 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:52:07,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 23:52:07,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:52:07,242 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 23:52:07,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:52:07,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:52:07,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200561148] [2021-01-06 23:52:07,243 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:52:07,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:52:07,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:52:07,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:52:07,244 INFO L87 Difference]: Start difference. First operand 10299 states and 46501 transitions. Second operand 9 states. [2021-01-06 23:52:08,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:52:08,604 INFO L93 Difference]: Finished difference Result 31570 states and 122547 transitions. [2021-01-06 23:52:08,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:52:08,605 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:52:08,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:52:08,688 INFO L225 Difference]: With dead ends: 31570 [2021-01-06 23:52:08,688 INFO L226 Difference]: Without dead ends: 31537 [2021-01-06 23:52:08,688 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:52:08,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31537 states. [2021-01-06 23:52:09,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31537 to 10244. [2021-01-06 23:52:09,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10244 states. [2021-01-06 23:52:09,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10244 states to 10244 states and 46203 transitions. [2021-01-06 23:52:09,355 INFO L78 Accepts]: Start accepts. Automaton has 10244 states and 46203 transitions. Word has length 25 [2021-01-06 23:52:09,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:52:09,355 INFO L481 AbstractCegarLoop]: Abstraction has 10244 states and 46203 transitions. [2021-01-06 23:52:09,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:52:09,355 INFO L276 IsEmpty]: Start isEmpty. Operand 10244 states and 46203 transitions. [2021-01-06 23:52:09,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:52:09,359 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:52:09,359 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:52:09,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,53 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:52:09,560 INFO L429 AbstractCegarLoop]: === Iteration 35 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:52:09,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:52:09,561 INFO L82 PathProgramCache]: Analyzing trace with hash 557378584, now seen corresponding path program 5 times [2021-01-06 23:52:09,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:52:09,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645385832] [2021-01-06 23:52:09,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:52:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:09,704 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:52:09,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645385832] [2021-01-06 23:52:09,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325855982] [2021-01-06 23:52:09,705 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:52:09,837 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-01-06 23:52:09,837 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:52:09,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 23:52:09,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:52:10,067 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 23:52:10,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:52:10,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:52:10,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054002810] [2021-01-06 23:52:10,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:52:10,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:52:10,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:52:10,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:52:10,068 INFO L87 Difference]: Start difference. First operand 10244 states and 46203 transitions. Second operand 9 states. [2021-01-06 23:52:10,982 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-01-06 23:52:11,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:52:11,507 INFO L93 Difference]: Finished difference Result 31516 states and 122021 transitions. [2021-01-06 23:52:11,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:52:11,508 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:52:11,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:52:11,590 INFO L225 Difference]: With dead ends: 31516 [2021-01-06 23:52:11,591 INFO L226 Difference]: Without dead ends: 31490 [2021-01-06 23:52:11,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:52:11,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31490 states. [2021-01-06 23:52:12,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31490 to 10032. [2021-01-06 23:52:12,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10032 states. [2021-01-06 23:52:12,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10032 states to 10032 states and 45208 transitions. [2021-01-06 23:52:12,276 INFO L78 Accepts]: Start accepts. Automaton has 10032 states and 45208 transitions. Word has length 25 [2021-01-06 23:52:12,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:52:12,277 INFO L481 AbstractCegarLoop]: Abstraction has 10032 states and 45208 transitions. [2021-01-06 23:52:12,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:52:12,277 INFO L276 IsEmpty]: Start isEmpty. Operand 10032 states and 45208 transitions. [2021-01-06 23:52:12,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:52:12,280 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:52:12,280 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:52:12,483 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-01-06 23:52:12,484 INFO L429 AbstractCegarLoop]: === Iteration 36 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:52:12,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:52:12,485 INFO L82 PathProgramCache]: Analyzing trace with hash 574133464, now seen corresponding path program 6 times [2021-01-06 23:52:12,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:52:12,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152852828] [2021-01-06 23:52:12,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:52:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:12,627 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:52:12,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152852828] [2021-01-06 23:52:12,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331809194] [2021-01-06 23:52:12,628 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:52:12,754 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-01-06 23:52:12,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:52:12,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:52:12,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:52:12,987 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 23:52:12,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:52:12,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:52:12,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282261186] [2021-01-06 23:52:12,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:52:12,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:52:12,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:52:12,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:52:12,988 INFO L87 Difference]: Start difference. First operand 10032 states and 45208 transitions. Second operand 9 states. [2021-01-06 23:52:14,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:52:14,456 INFO L93 Difference]: Finished difference Result 31191 states and 120629 transitions. [2021-01-06 23:52:14,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:52:14,458 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:52:14,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:52:14,540 INFO L225 Difference]: With dead ends: 31191 [2021-01-06 23:52:14,540 INFO L226 Difference]: Without dead ends: 31163 [2021-01-06 23:52:14,541 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:52:14,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31163 states. [2021-01-06 23:52:15,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31163 to 9737. [2021-01-06 23:52:15,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9737 states. [2021-01-06 23:52:15,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9737 states to 9737 states and 43850 transitions. [2021-01-06 23:52:15,266 INFO L78 Accepts]: Start accepts. Automaton has 9737 states and 43850 transitions. Word has length 25 [2021-01-06 23:52:15,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:52:15,266 INFO L481 AbstractCegarLoop]: Abstraction has 9737 states and 43850 transitions. [2021-01-06 23:52:15,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:52:15,266 INFO L276 IsEmpty]: Start isEmpty. Operand 9737 states and 43850 transitions. [2021-01-06 23:52:15,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:52:15,270 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:52:15,270 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:52:15,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2021-01-06 23:52:15,471 INFO L429 AbstractCegarLoop]: === Iteration 37 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:52:15,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:52:15,472 INFO L82 PathProgramCache]: Analyzing trace with hash 574151971, now seen corresponding path program 3 times [2021-01-06 23:52:15,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:52:15,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806299941] [2021-01-06 23:52:15,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:52:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:15,623 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:52:15,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806299941] [2021-01-06 23:52:15,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257057425] [2021-01-06 23:52:15,624 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:52:15,750 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-01-06 23:52:15,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:52:15,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:52:15,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:52:15,982 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 23:52:15,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:52:15,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:52:15,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039352704] [2021-01-06 23:52:15,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:52:15,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:52:15,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:52:15,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:52:15,983 INFO L87 Difference]: Start difference. First operand 9737 states and 43850 transitions. Second operand 9 states. [2021-01-06 23:52:17,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:52:17,457 INFO L93 Difference]: Finished difference Result 31014 states and 120075 transitions. [2021-01-06 23:52:17,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:52:17,458 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:52:17,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:52:17,544 INFO L225 Difference]: With dead ends: 31014 [2021-01-06 23:52:17,544 INFO L226 Difference]: Without dead ends: 30988 [2021-01-06 23:52:17,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:52:17,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30988 states. [2021-01-06 23:52:17,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30988 to 9643. [2021-01-06 23:52:17,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9643 states. [2021-01-06 23:52:18,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9643 states to 9643 states and 43388 transitions. [2021-01-06 23:52:18,026 INFO L78 Accepts]: Start accepts. Automaton has 9643 states and 43388 transitions. Word has length 25 [2021-01-06 23:52:18,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:52:18,026 INFO L481 AbstractCegarLoop]: Abstraction has 9643 states and 43388 transitions. [2021-01-06 23:52:18,026 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:52:18,026 INFO L276 IsEmpty]: Start isEmpty. Operand 9643 states and 43388 transitions. [2021-01-06 23:52:18,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:52:18,030 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:52:18,030 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:52:18,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:52:18,230 INFO L429 AbstractCegarLoop]: === Iteration 38 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:52:18,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:52:18,231 INFO L82 PathProgramCache]: Analyzing trace with hash 575163811, now seen corresponding path program 4 times [2021-01-06 23:52:18,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:52:18,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209271223] [2021-01-06 23:52:18,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:52:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:18,374 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:52:18,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209271223] [2021-01-06 23:52:18,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136873969] [2021-01-06 23:52:18,375 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:52:18,648 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 23:52:18,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:52:18,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:52:18,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:52:18,950 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:52:18,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:52:18,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-01-06 23:52:18,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077564964] [2021-01-06 23:52:18,951 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-01-06 23:52:18,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:52:18,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-01-06 23:52:18,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2021-01-06 23:52:18,952 INFO L87 Difference]: Start difference. First operand 9643 states and 43388 transitions. Second operand 25 states. [2021-01-06 23:52:23,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:52:23,694 INFO L93 Difference]: Finished difference Result 34855 states and 134813 transitions. [2021-01-06 23:52:23,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-01-06 23:52:23,695 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 25 [2021-01-06 23:52:23,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:52:23,786 INFO L225 Difference]: With dead ends: 34855 [2021-01-06 23:52:23,786 INFO L226 Difference]: Without dead ends: 34798 [2021-01-06 23:52:23,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3681 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=2085, Invalid=8835, Unknown=0, NotChecked=0, Total=10920 [2021-01-06 23:52:24,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34798 states. [2021-01-06 23:52:24,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34798 to 9531. [2021-01-06 23:52:24,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9531 states. [2021-01-06 23:52:24,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9531 states to 9531 states and 42888 transitions. [2021-01-06 23:52:24,409 INFO L78 Accepts]: Start accepts. Automaton has 9531 states and 42888 transitions. Word has length 25 [2021-01-06 23:52:24,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:52:24,409 INFO L481 AbstractCegarLoop]: Abstraction has 9531 states and 42888 transitions. [2021-01-06 23:52:24,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-01-06 23:52:24,409 INFO L276 IsEmpty]: Start isEmpty. Operand 9531 states and 42888 transitions. [2021-01-06 23:52:24,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:52:24,413 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:52:24,413 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:52:24,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-01-06 23:52:24,614 INFO L429 AbstractCegarLoop]: === Iteration 39 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:52:24,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:52:24,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1786648139, now seen corresponding path program 5 times [2021-01-06 23:52:24,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:52:24,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754591959] [2021-01-06 23:52:24,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:52:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:24,754 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:52:24,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754591959] [2021-01-06 23:52:24,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621180649] [2021-01-06 23:52:24,755 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:52:24,893 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-01-06 23:52:24,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:52:24,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:52:24,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:52:25,319 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:52:25,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:52:25,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-01-06 23:52:25,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837414263] [2021-01-06 23:52:25,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-01-06 23:52:25,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:52:25,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-01-06 23:52:25,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2021-01-06 23:52:25,321 INFO L87 Difference]: Start difference. First operand 9531 states and 42888 transitions. Second operand 25 states. [2021-01-06 23:52:29,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:52:29,911 INFO L93 Difference]: Finished difference Result 34260 states and 132219 transitions. [2021-01-06 23:52:29,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-01-06 23:52:29,912 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 25 [2021-01-06 23:52:29,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:52:30,015 INFO L225 Difference]: With dead ends: 34260 [2021-01-06 23:52:30,015 INFO L226 Difference]: Without dead ends: 34214 [2021-01-06 23:52:30,016 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3628 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2068, Invalid=8644, Unknown=0, NotChecked=0, Total=10712 [2021-01-06 23:52:30,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34214 states. [2021-01-06 23:52:30,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34214 to 9368. [2021-01-06 23:52:30,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9368 states. [2021-01-06 23:52:30,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9368 states to 9368 states and 42129 transitions. [2021-01-06 23:52:30,739 INFO L78 Accepts]: Start accepts. Automaton has 9368 states and 42129 transitions. Word has length 25 [2021-01-06 23:52:30,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:52:30,740 INFO L481 AbstractCegarLoop]: Abstraction has 9368 states and 42129 transitions. [2021-01-06 23:52:30,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-01-06 23:52:30,740 INFO L276 IsEmpty]: Start isEmpty. Operand 9368 states and 42129 transitions. [2021-01-06 23:52:30,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:52:30,744 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:52:30,744 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:52:30,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:52:30,955 INFO L429 AbstractCegarLoop]: === Iteration 40 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:52:30,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:52:30,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1803403019, now seen corresponding path program 6 times [2021-01-06 23:52:30,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:52:30,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713389884] [2021-01-06 23:52:30,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:52:30,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:31,102 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:52:31,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713389884] [2021-01-06 23:52:31,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488623564] [2021-01-06 23:52:31,103 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:52:31,220 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-01-06 23:52:31,221 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:52:31,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 23:52:31,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:52:31,443 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 23:52:31,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:52:31,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:52:31,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45349984] [2021-01-06 23:52:31,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:52:31,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:52:31,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:52:31,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:52:31,445 INFO L87 Difference]: Start difference. First operand 9368 states and 42129 transitions. Second operand 9 states. [2021-01-06 23:52:32,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:52:32,702 INFO L93 Difference]: Finished difference Result 30701 states and 118720 transitions. [2021-01-06 23:52:32,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:52:32,703 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:52:32,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:52:33,009 INFO L225 Difference]: With dead ends: 30701 [2021-01-06 23:52:33,010 INFO L226 Difference]: Without dead ends: 30668 [2021-01-06 23:52:33,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:52:33,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30668 states. [2021-01-06 23:52:33,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30668 to 9053. [2021-01-06 23:52:33,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9053 states. [2021-01-06 23:52:33,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9053 states to 9053 states and 40718 transitions. [2021-01-06 23:52:33,478 INFO L78 Accepts]: Start accepts. Automaton has 9053 states and 40718 transitions. Word has length 25 [2021-01-06 23:52:33,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:52:33,478 INFO L481 AbstractCegarLoop]: Abstraction has 9053 states and 40718 transitions. [2021-01-06 23:52:33,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:52:33,478 INFO L276 IsEmpty]: Start isEmpty. Operand 9053 states and 40718 transitions. [2021-01-06 23:52:33,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:52:33,481 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:52:33,481 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:52:33,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable71 [2021-01-06 23:52:33,682 INFO L429 AbstractCegarLoop]: === Iteration 41 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:52:33,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:52:33,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1803406243, now seen corresponding path program 5 times [2021-01-06 23:52:33,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:52:33,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765801741] [2021-01-06 23:52:33,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:52:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:33,839 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:52:33,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765801741] [2021-01-06 23:52:33,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988443112] [2021-01-06 23:52:33,840 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:52:33,977 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-01-06 23:52:33,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:52:33,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:52:33,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:52:34,403 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:52:34,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:52:34,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-01-06 23:52:34,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106018122] [2021-01-06 23:52:34,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-01-06 23:52:34,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:52:34,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-01-06 23:52:34,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2021-01-06 23:52:34,405 INFO L87 Difference]: Start difference. First operand 9053 states and 40718 transitions. Second operand 25 states. [2021-01-06 23:52:39,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:52:39,059 INFO L93 Difference]: Finished difference Result 32866 states and 126139 transitions. [2021-01-06 23:52:39,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-01-06 23:52:39,060 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 25 [2021-01-06 23:52:39,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:52:39,145 INFO L225 Difference]: With dead ends: 32866 [2021-01-06 23:52:39,146 INFO L226 Difference]: Without dead ends: 32820 [2021-01-06 23:52:39,146 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3739 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2075, Invalid=8845, Unknown=0, NotChecked=0, Total=10920 [2021-01-06 23:52:39,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32820 states. [2021-01-06 23:52:39,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32820 to 8951. [2021-01-06 23:52:39,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8951 states. [2021-01-06 23:52:39,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8951 states to 8951 states and 40236 transitions. [2021-01-06 23:52:39,767 INFO L78 Accepts]: Start accepts. Automaton has 8951 states and 40236 transitions. Word has length 25 [2021-01-06 23:52:39,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:52:39,767 INFO L481 AbstractCegarLoop]: Abstraction has 8951 states and 40236 transitions. [2021-01-06 23:52:39,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-01-06 23:52:39,767 INFO L276 IsEmpty]: Start isEmpty. Operand 8951 states and 40236 transitions. [2021-01-06 23:52:39,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:52:39,771 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:52:39,771 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:52:39,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,60 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:52:39,979 INFO L429 AbstractCegarLoop]: === Iteration 42 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:52:39,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:52:39,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1789746403, now seen corresponding path program 6 times [2021-01-06 23:52:39,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:52:39,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116198641] [2021-01-06 23:52:39,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:52:39,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:40,134 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:52:40,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116198641] [2021-01-06 23:52:40,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858532031] [2021-01-06 23:52:40,135 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:52:40,249 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-01-06 23:52:40,249 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:52:40,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjunts are in the unsatisfiable core [2021-01-06 23:52:40,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:52:40,482 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-01-06 23:52:40,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:52:40,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:52:40,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531512486] [2021-01-06 23:52:40,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:52:40,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:52:40,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:52:40,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:52:40,484 INFO L87 Difference]: Start difference. First operand 8951 states and 40236 transitions. Second operand 9 states. [2021-01-06 23:52:41,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:52:41,882 INFO L93 Difference]: Finished difference Result 29960 states and 115617 transitions. [2021-01-06 23:52:41,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:52:41,883 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:52:41,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:52:41,959 INFO L225 Difference]: With dead ends: 29960 [2021-01-06 23:52:41,960 INFO L226 Difference]: Without dead ends: 29927 [2021-01-06 23:52:41,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:52:42,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29927 states. [2021-01-06 23:52:42,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29927 to 8560. [2021-01-06 23:52:42,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8560 states. [2021-01-06 23:52:42,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 38495 transitions. [2021-01-06 23:52:42,415 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 38495 transitions. Word has length 25 [2021-01-06 23:52:42,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:52:42,415 INFO L481 AbstractCegarLoop]: Abstraction has 8560 states and 38495 transitions. [2021-01-06 23:52:42,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:52:42,415 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 38495 transitions. [2021-01-06 23:52:42,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-01-06 23:52:42,419 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:52:42,419 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:52:42,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2021-01-06 23:52:42,620 INFO L429 AbstractCegarLoop]: === Iteration 43 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:52:42,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:52:42,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1513513479, now seen corresponding path program 1 times [2021-01-06 23:52:42,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:52:42,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839446515] [2021-01-06 23:52:42,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:52:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 23:52:42,649 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 23:52:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 23:52:42,660 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 23:52:42,682 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 23:52:42,683 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 23:52:42,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-01-06 23:52:42,683 WARN L342 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2021-01-06 23:52:42,683 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2021-01-06 23:52:42,712 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,712 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,713 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,713 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,713 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,713 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,713 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,713 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,713 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,713 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,714 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,714 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,714 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,714 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,715 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,715 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,715 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,715 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,715 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,715 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,715 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,715 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,715 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,715 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,716 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,716 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,716 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,716 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,717 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,718 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,718 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,718 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,718 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,718 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,718 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,718 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,718 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,718 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,719 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,719 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,719 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,719 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,719 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,719 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,719 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,719 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,719 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,720 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,720 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,720 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,720 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,720 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,720 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,720 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,720 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,721 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,721 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,721 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,721 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,721 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,721 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,721 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,721 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,722 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,722 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,722 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,722 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,722 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,722 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,722 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,722 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,723 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,723 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,723 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,723 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,723 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,723 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,723 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,723 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,723 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,724 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,724 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,724 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,724 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,724 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,724 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,724 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,724 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,725 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,725 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,725 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,725 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,725 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,725 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,725 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,725 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,725 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,725 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,726 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,726 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,726 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,726 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,726 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,726 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,726 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,726 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,727 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,727 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,727 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,727 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,727 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,727 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,727 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,727 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,727 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,728 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,728 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,728 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,728 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,728 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,728 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,728 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,728 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,728 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,729 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,729 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,729 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,729 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,730 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,730 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,731 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,731 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,731 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,731 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,732 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,732 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,732 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,732 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,732 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,732 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,732 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,732 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,733 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,733 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,734 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,734 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,734 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,734 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,734 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,734 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,734 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,734 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,734 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,734 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,735 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,735 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,735 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,735 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,735 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,735 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,735 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,735 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,736 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,736 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,736 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,736 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,736 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,736 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,736 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,736 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,737 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,737 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,737 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,737 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,737 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,737 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,737 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,737 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,737 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,737 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,738 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,738 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,738 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,738 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,738 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,740 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,740 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,740 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,740 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,740 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,742 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,742 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,742 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,742 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,742 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,744 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,744 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,744 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,744 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,744 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,746 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,746 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,746 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,746 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,746 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,755 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,756 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,756 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,756 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,756 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,758 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,758 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,758 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,759 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,759 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,759 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,762 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,763 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,763 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,763 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,763 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,763 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,766 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,766 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,767 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,767 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,767 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,767 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,771 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,772 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,772 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,772 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,772 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,772 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,773 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,773 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,773 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,774 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,774 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,774 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,775 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,775 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,775 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,776 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,776 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,776 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:52:42,777 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:52:42,777 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-01-06 23:52:42,778 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:52:42,778 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:52:42,778 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:52:42,778 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:52:42,778 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:52:42,778 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:52:42,778 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:52:42,778 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:52:42,780 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:52:42,780 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 166 places, 148 transitions, 416 flow [2021-01-06 23:52:42,780 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 166 places, 148 transitions, 416 flow [2021-01-06 23:52:42,780 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 166 places, 148 transitions, 416 flow [2021-01-06 23:52:42,870 INFO L129 PetriNetUnfolder]: 9/178 cut-off events. [2021-01-06 23:52:42,870 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2021-01-06 23:52:42,872 INFO L84 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 178 events. 9/178 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 291 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 213. Up to 14 conditions per place. [2021-01-06 23:52:42,877 INFO L116 LiptonReduction]: Number of co-enabled transitions 2940 [2021-01-06 23:52:46,652 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-01-06 23:52:46,839 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-01-06 23:52:47,939 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-01-06 23:52:48,046 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-01-06 23:52:48,160 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-01-06 23:52:48,271 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-01-06 23:52:48,705 WARN L197 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2021-01-06 23:52:48,894 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-01-06 23:52:49,371 WARN L197 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2021-01-06 23:52:49,574 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-01-06 23:52:49,578 INFO L131 LiptonReduction]: Checked pairs total: 5258 [2021-01-06 23:52:49,578 INFO L133 LiptonReduction]: Total number of compositions: 135 [2021-01-06 23:52:49,579 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 45 transitions, 210 flow [2021-01-06 23:52:51,267 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 18584 states. [2021-01-06 23:52:51,267 INFO L276 IsEmpty]: Start isEmpty. Operand 18584 states. [2021-01-06 23:52:51,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-01-06 23:52:51,268 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:52:51,268 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-01-06 23:52:51,268 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:52:51,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:52:51,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1408665, now seen corresponding path program 1 times [2021-01-06 23:52:51,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:52:51,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201116732] [2021-01-06 23:52:51,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:52:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:51,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:52:51,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201116732] [2021-01-06 23:52:51,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:52:51,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-01-06 23:52:51,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934028123] [2021-01-06 23:52:51,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:52:51,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:52:51,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:52:51,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:52:51,293 INFO L87 Difference]: Start difference. First operand 18584 states. Second operand 3 states. [2021-01-06 23:52:51,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:52:51,511 INFO L93 Difference]: Finished difference Result 17885 states and 92755 transitions. [2021-01-06 23:52:51,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:52:51,512 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-01-06 23:52:51,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:52:51,598 INFO L225 Difference]: With dead ends: 17885 [2021-01-06 23:52:51,598 INFO L226 Difference]: Without dead ends: 16791 [2021-01-06 23:52:51,598 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:52:52,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16791 states. [2021-01-06 23:52:52,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16791 to 16791. [2021-01-06 23:52:52,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16791 states. [2021-01-06 23:52:52,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16791 states to 16791 states and 86558 transitions. [2021-01-06 23:52:52,867 INFO L78 Accepts]: Start accepts. Automaton has 16791 states and 86558 transitions. Word has length 3 [2021-01-06 23:52:52,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:52:52,867 INFO L481 AbstractCegarLoop]: Abstraction has 16791 states and 86558 transitions. [2021-01-06 23:52:52,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:52:52,867 INFO L276 IsEmpty]: Start isEmpty. Operand 16791 states and 86558 transitions. [2021-01-06 23:52:52,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:52:52,868 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:52:52,868 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:52:52,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-01-06 23:52:52,869 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:52:52,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:52:52,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1428828959, now seen corresponding path program 1 times [2021-01-06 23:52:52,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:52:52,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112350212] [2021-01-06 23:52:52,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:52:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:52,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:52:52,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112350212] [2021-01-06 23:52:52,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:52:52,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 23:52:52,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802217038] [2021-01-06 23:52:52,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:52:52,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:52:52,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:52:52,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:52:52,949 INFO L87 Difference]: Start difference. First operand 16791 states and 86558 transitions. Second operand 7 states. [2021-01-06 23:52:53,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:52:53,685 INFO L93 Difference]: Finished difference Result 36645 states and 175611 transitions. [2021-01-06 23:52:53,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 23:52:53,686 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2021-01-06 23:52:53,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:52:53,920 INFO L225 Difference]: With dead ends: 36645 [2021-01-06 23:52:53,921 INFO L226 Difference]: Without dead ends: 36637 [2021-01-06 23:52:53,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-01-06 23:52:55,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36637 states. [2021-01-06 23:52:55,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36637 to 19868. [2021-01-06 23:52:55,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19868 states. [2021-01-06 23:52:55,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19868 states to 19868 states and 103363 transitions. [2021-01-06 23:52:55,756 INFO L78 Accepts]: Start accepts. Automaton has 19868 states and 103363 transitions. Word has length 9 [2021-01-06 23:52:55,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:52:55,756 INFO L481 AbstractCegarLoop]: Abstraction has 19868 states and 103363 transitions. [2021-01-06 23:52:55,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:52:55,756 INFO L276 IsEmpty]: Start isEmpty. Operand 19868 states and 103363 transitions. [2021-01-06 23:52:55,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 23:52:55,762 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:52:55,762 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:52:55,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-01-06 23:52:55,762 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:52:55,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:52:55,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1436873082, now seen corresponding path program 1 times [2021-01-06 23:52:55,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:52:55,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623112192] [2021-01-06 23:52:55,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:52:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:55,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:52:55,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623112192] [2021-01-06 23:52:55,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149642300] [2021-01-06 23:52:55,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:52:55,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:55,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 23:52:55,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:52:56,069 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 23:52:56,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:52:56,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2021-01-06 23:52:56,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846387978] [2021-01-06 23:52:56,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:52:56,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:52:56,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:52:56,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-01-06 23:52:56,071 INFO L87 Difference]: Start difference. First operand 19868 states and 103363 transitions. Second operand 5 states. [2021-01-06 23:52:56,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:52:56,741 INFO L93 Difference]: Finished difference Result 36296 states and 178836 transitions. [2021-01-06 23:52:56,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:52:56,742 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-01-06 23:52:56,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:52:56,887 INFO L225 Difference]: With dead ends: 36296 [2021-01-06 23:52:56,888 INFO L226 Difference]: Without dead ends: 36280 [2021-01-06 23:52:56,888 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-01-06 23:52:57,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36280 states. [2021-01-06 23:52:58,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36280 to 23806. [2021-01-06 23:52:58,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23806 states. [2021-01-06 23:52:58,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23806 states to 23806 states and 125455 transitions. [2021-01-06 23:52:58,641 INFO L78 Accepts]: Start accepts. Automaton has 23806 states and 125455 transitions. Word has length 13 [2021-01-06 23:52:58,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:52:58,641 INFO L481 AbstractCegarLoop]: Abstraction has 23806 states and 125455 transitions. [2021-01-06 23:52:58,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:52:58,641 INFO L276 IsEmpty]: Start isEmpty. Operand 23806 states and 125455 transitions. [2021-01-06 23:52:58,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:52:58,647 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:52:58,647 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:52:58,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:52:58,862 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:52:58,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:52:58,862 INFO L82 PathProgramCache]: Analyzing trace with hash -121904858, now seen corresponding path program 1 times [2021-01-06 23:52:58,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:52:58,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52323697] [2021-01-06 23:52:58,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:52:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:58,962 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:52:58,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52323697] [2021-01-06 23:52:58,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145795372] [2021-01-06 23:52:58,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:52:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:59,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 11 conjunts are in the unsatisfiable core [2021-01-06 23:52:59,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:52:59,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:52:59,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:52:59,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2021-01-06 23:52:59,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128448067] [2021-01-06 23:52:59,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-06 23:52:59,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:52:59,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-06 23:52:59,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2021-01-06 23:52:59,278 INFO L87 Difference]: Start difference. First operand 23806 states and 125455 transitions. Second operand 18 states. [2021-01-06 23:53:01,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:53:01,057 INFO L93 Difference]: Finished difference Result 67485 states and 307415 transitions. [2021-01-06 23:53:01,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-01-06 23:53:01,058 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 15 [2021-01-06 23:53:01,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:53:01,291 INFO L225 Difference]: With dead ends: 67485 [2021-01-06 23:53:01,291 INFO L226 Difference]: Without dead ends: 67469 [2021-01-06 23:53:01,292 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=241, Invalid=751, Unknown=0, NotChecked=0, Total=992 [2021-01-06 23:53:02,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67469 states. [2021-01-06 23:53:03,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67469 to 23629. [2021-01-06 23:53:03,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23629 states. [2021-01-06 23:53:03,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23629 states to 23629 states and 124418 transitions. [2021-01-06 23:53:03,809 INFO L78 Accepts]: Start accepts. Automaton has 23629 states and 124418 transitions. Word has length 15 [2021-01-06 23:53:03,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:53:03,809 INFO L481 AbstractCegarLoop]: Abstraction has 23629 states and 124418 transitions. [2021-01-06 23:53:03,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2021-01-06 23:53:03,809 INFO L276 IsEmpty]: Start isEmpty. Operand 23629 states and 124418 transitions. [2021-01-06 23:53:03,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:53:03,810 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:53:03,810 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:53:04,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2021-01-06 23:53:04,011 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:53:04,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:53:04,011 INFO L82 PathProgramCache]: Analyzing trace with hash 2144442278, now seen corresponding path program 2 times [2021-01-06 23:53:04,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:53:04,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853358081] [2021-01-06 23:53:04,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:53:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:53:04,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:53:04,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853358081] [2021-01-06 23:53:04,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840498732] [2021-01-06 23:53:04,098 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:53:04,244 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:53:04,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:53:04,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 23:53:04,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:53:04,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 23:53:04,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:53:04,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 13 [2021-01-06 23:53:04,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40199585] [2021-01-06 23:53:04,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:53:04,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:53:04,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:53:04,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-01-06 23:53:04,383 INFO L87 Difference]: Start difference. First operand 23629 states and 124418 transitions. Second operand 7 states. [2021-01-06 23:53:05,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:53:05,562 INFO L93 Difference]: Finished difference Result 58078 states and 269185 transitions. [2021-01-06 23:53:05,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:53:05,563 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2021-01-06 23:53:05,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:53:05,812 INFO L225 Difference]: With dead ends: 58078 [2021-01-06 23:53:05,812 INFO L226 Difference]: Without dead ends: 58061 [2021-01-06 23:53:05,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2021-01-06 23:53:06,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58061 states. [2021-01-06 23:53:07,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58061 to 23109. [2021-01-06 23:53:07,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23109 states. [2021-01-06 23:53:07,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23109 states to 23109 states and 121651 transitions. [2021-01-06 23:53:07,880 INFO L78 Accepts]: Start accepts. Automaton has 23109 states and 121651 transitions. Word has length 15 [2021-01-06 23:53:07,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:53:07,880 INFO L481 AbstractCegarLoop]: Abstraction has 23109 states and 121651 transitions. [2021-01-06 23:53:07,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:53:07,880 INFO L276 IsEmpty]: Start isEmpty. Operand 23109 states and 121651 transitions. [2021-01-06 23:53:07,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-06 23:53:07,881 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:53:07,881 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:53:08,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:53:08,082 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:53:08,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:53:08,083 INFO L82 PathProgramCache]: Analyzing trace with hash 631312444, now seen corresponding path program 1 times [2021-01-06 23:53:08,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:53:08,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967609444] [2021-01-06 23:53:08,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:53:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:53:08,166 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 23:53:08,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967609444] [2021-01-06 23:53:08,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979621816] [2021-01-06 23:53:08,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:53:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:53:08,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 23:53:08,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:53:08,722 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-06 23:53:08,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:53:08,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2021-01-06 23:53:08,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410440206] [2021-01-06 23:53:08,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:53:08,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:53:08,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:53:08,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-01-06 23:53:08,726 INFO L87 Difference]: Start difference. First operand 23109 states and 121651 transitions. Second operand 5 states. [2021-01-06 23:53:09,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:53:09,334 INFO L93 Difference]: Finished difference Result 41885 states and 209629 transitions. [2021-01-06 23:53:09,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:53:09,335 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2021-01-06 23:53:09,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:53:09,483 INFO L225 Difference]: With dead ends: 41885 [2021-01-06 23:53:09,483 INFO L226 Difference]: Without dead ends: 41856 [2021-01-06 23:53:09,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-01-06 23:53:10,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41856 states. [2021-01-06 23:53:11,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41856 to 28237. [2021-01-06 23:53:11,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28237 states. [2021-01-06 23:53:11,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28237 states to 28237 states and 150261 transitions. [2021-01-06 23:53:11,527 INFO L78 Accepts]: Start accepts. Automaton has 28237 states and 150261 transitions. Word has length 17 [2021-01-06 23:53:11,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:53:11,527 INFO L481 AbstractCegarLoop]: Abstraction has 28237 states and 150261 transitions. [2021-01-06 23:53:11,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:53:11,527 INFO L276 IsEmpty]: Start isEmpty. Operand 28237 states and 150261 transitions. [2021-01-06 23:53:11,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:53:11,528 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:53:11,528 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:53:11,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,65 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:53:11,730 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:53:11,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:53:11,731 INFO L82 PathProgramCache]: Analyzing trace with hash -602434852, now seen corresponding path program 1 times [2021-01-06 23:53:11,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:53:11,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519737040] [2021-01-06 23:53:11,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:53:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:53:11,839 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:53:11,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519737040] [2021-01-06 23:53:11,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518054409] [2021-01-06 23:53:11,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:53:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:53:11,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 12 conjunts are in the unsatisfiable core [2021-01-06 23:53:11,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:53:12,562 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:53:12,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:53:12,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2021-01-06 23:53:12,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273398986] [2021-01-06 23:53:12,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-01-06 23:53:12,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:53:12,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-01-06 23:53:12,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2021-01-06 23:53:12,564 INFO L87 Difference]: Start difference. First operand 28237 states and 150261 transitions. Second operand 20 states. [2021-01-06 23:53:15,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:53:15,215 INFO L93 Difference]: Finished difference Result 93341 states and 437217 transitions. [2021-01-06 23:53:15,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:53:15,216 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 19 [2021-01-06 23:53:15,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:53:15,564 INFO L225 Difference]: With dead ends: 93341 [2021-01-06 23:53:15,564 INFO L226 Difference]: Without dead ends: 93317 [2021-01-06 23:53:15,564 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=448, Invalid=1532, Unknown=0, NotChecked=0, Total=1980 [2021-01-06 23:53:17,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93317 states. [2021-01-06 23:53:18,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93317 to 29810. [2021-01-06 23:53:18,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29810 states. [2021-01-06 23:53:18,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29810 states to 29810 states and 159322 transitions. [2021-01-06 23:53:18,643 INFO L78 Accepts]: Start accepts. Automaton has 29810 states and 159322 transitions. Word has length 19 [2021-01-06 23:53:18,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:53:18,643 INFO L481 AbstractCegarLoop]: Abstraction has 29810 states and 159322 transitions. [2021-01-06 23:53:18,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-01-06 23:53:18,643 INFO L276 IsEmpty]: Start isEmpty. Operand 29810 states and 159322 transitions. [2021-01-06 23:53:18,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:53:18,644 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:53:18,644 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:53:18,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable81 [2021-01-06 23:53:18,845 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:53:18,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:53:18,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1111858202, now seen corresponding path program 1 times [2021-01-06 23:53:18,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:53:18,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127795432] [2021-01-06 23:53:18,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:53:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:53:18,964 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:53:18,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127795432] [2021-01-06 23:53:18,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877028978] [2021-01-06 23:53:18,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:53:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:53:19,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 12 conjunts are in the unsatisfiable core [2021-01-06 23:53:19,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:53:19,655 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:53:19,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:53:19,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2021-01-06 23:53:19,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117862970] [2021-01-06 23:53:19,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-01-06 23:53:19,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:53:19,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-01-06 23:53:19,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2021-01-06 23:53:19,657 INFO L87 Difference]: Start difference. First operand 29810 states and 159322 transitions. Second operand 20 states. [2021-01-06 23:53:21,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:53:21,471 INFO L93 Difference]: Finished difference Result 71566 states and 340385 transitions. [2021-01-06 23:53:21,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-01-06 23:53:21,472 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 19 [2021-01-06 23:53:21,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:53:21,779 INFO L225 Difference]: With dead ends: 71566 [2021-01-06 23:53:21,779 INFO L226 Difference]: Without dead ends: 71541 [2021-01-06 23:53:21,780 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=248, Invalid=744, Unknown=0, NotChecked=0, Total=992