/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-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 23:49:10,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 23:49:10,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 23:49:10,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-01-06 23:49:10,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 23:49:10,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 23:49:10,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 23:49:10,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 23:49:10,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 23:49:10,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 23:49:10,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 23:49:10,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 23:49:10,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 23:49:10,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 23:49:10,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 23:49:10,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 23:49:10,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 23:49:10,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 23:49:10,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 23:49:10,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 23:49:10,304 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 23:49:10,356 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 23:49:10,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 23:49:10,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 23:49:10,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 23:49:10,362 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 23:49:10,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 23:49:10,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 23:49:10,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 23:49:10,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 23:49:10,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 23:49:10,365 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 23:49:10,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 23:49:10,365 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 23:49:10,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 23:49:10,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 23:49:10,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 23:49:10,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 23:49:10,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 23:49:10,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 23:49:10,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 23:49:10,367 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 23:49:10,367 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 23:49:10,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 23:49:10,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 23:49:10,367 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 23:49:10,368 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 23:49:10,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 23:49:10,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 23:49:10,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 23:49:10,789 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 23:49:10,790 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 23:49:10,791 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i [2021-01-06 23:49:10,871 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5e4391d08/a9d0342cf6664ae4b2d3703aa08cb2c6/FLAG0e4e9ce64 [2021-01-06 23:49:11,624 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 23:49:11,625 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i [2021-01-06 23:49:11,650 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5e4391d08/a9d0342cf6664ae4b2d3703aa08cb2c6/FLAG0e4e9ce64 [2021-01-06 23:49:11,860 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5e4391d08/a9d0342cf6664ae4b2d3703aa08cb2c6 [2021-01-06 23:49:11,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 23:49:11,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 23:49:11,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 23:49:11,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 23:49:11,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 23:49:11,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:49:11" (1/1) ... [2021-01-06 23:49:11,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245b24e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:11, skipping insertion in model container [2021-01-06 23:49:11,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:49:11" (1/1) ... [2021-01-06 23:49:11,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 23:49:11,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 23:49:12,362 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-1.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 23:49:12,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:49:12,410 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 23:49:12,449 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-1.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 23:49:12,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:49:12,612 INFO L208 MainTranslator]: Completed translation [2021-01-06 23:49:12,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:12 WrapperNode [2021-01-06 23:49:12,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 23:49:12,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 23:49:12,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 23:49:12,616 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 23:49:12,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:12" (1/1) ... [2021-01-06 23:49:12,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:12" (1/1) ... [2021-01-06 23:49:12,702 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 23:49:12,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 23:49:12,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 23:49:12,707 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 23:49:12,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:12" (1/1) ... [2021-01-06 23:49:12,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:12" (1/1) ... [2021-01-06 23:49:12,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:12" (1/1) ... [2021-01-06 23:49:12,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:12" (1/1) ... [2021-01-06 23:49:12,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:12" (1/1) ... [2021-01-06 23:49:12,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:12" (1/1) ... [2021-01-06 23:49:12,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:12" (1/1) ... [2021-01-06 23:49:12,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 23:49:12,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 23:49:12,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 23:49:12,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 23:49:12,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:12" (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 23:49:12,866 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-01-06 23:49:12,867 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-01-06 23:49:12,867 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-01-06 23:49:12,867 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-01-06 23:49:12,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 23:49:12,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 23:49:12,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 23:49:12,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 23:49:12,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 23:49:12,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 23:49:12,873 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 23:49:13,366 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 23:49:13,366 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-01-06 23:49:13,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:49:13 BoogieIcfgContainer [2021-01-06 23:49:13,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 23:49:13,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 23:49:13,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 23:49:13,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 23:49:13,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:49:11" (1/3) ... [2021-01-06 23:49:13,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@160d1a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:49:13, skipping insertion in model container [2021-01-06 23:49:13,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:49:12" (2/3) ... [2021-01-06 23:49:13,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@160d1a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:49:13, skipping insertion in model container [2021-01-06 23:49:13,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:49:13" (3/3) ... [2021-01-06 23:49:13,381 INFO L111 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-1.i [2021-01-06 23:49:13,392 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-06 23:49:13,393 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 23:49:13,398 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 23:49:13,399 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-06 23:49:13,459 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,459 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,460 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,460 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,460 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,460 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,461 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,461 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,461 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,462 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,463 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,463 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,463 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,463 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,466 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,466 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,466 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,467 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,467 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,467 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,467 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,467 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,468 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,468 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,468 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,468 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,469 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,469 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,469 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,469 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,470 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,470 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,472 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,473 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,476 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,477 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,477 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,478 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,478 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,485 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,485 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,486 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,487 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,487 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,487 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:13,490 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:49:13,515 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-06 23:49:13,559 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:49:13,559 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:49:13,559 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:49:13,559 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:49:13,560 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:49:13,560 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:49:13,560 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:49:13,560 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:49:13,586 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:49:13,589 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 63 transitions, 136 flow [2021-01-06 23:49:13,593 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 63 transitions, 136 flow [2021-01-06 23:49:13,595 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 63 transitions, 136 flow [2021-01-06 23:49:13,644 INFO L129 PetriNetUnfolder]: 4/73 cut-off events. [2021-01-06 23:49:13,644 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-01-06 23:49:13,650 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 23:49:13,653 INFO L116 LiptonReduction]: Number of co-enabled transitions 640 [2021-01-06 23:49:15,601 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-01-06 23:49:15,855 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-01-06 23:49:16,491 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-01-06 23:49:16,992 WARN L197 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 111 [2021-01-06 23:49:17,156 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-01-06 23:49:17,608 WARN L197 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 114 [2021-01-06 23:49:17,843 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-01-06 23:49:17,846 INFO L131 LiptonReduction]: Checked pairs total: 554 [2021-01-06 23:49:17,846 INFO L133 LiptonReduction]: Total number of compositions: 59 [2021-01-06 23:49:17,854 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 12 transitions, 34 flow [2021-01-06 23:49:17,865 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2021-01-06 23:49:17,868 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2021-01-06 23:49:17,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-01-06 23:49:17,874 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:17,875 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-01-06 23:49:17,875 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:49:17,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:17,882 INFO L82 PathProgramCache]: Analyzing trace with hash 245417, now seen corresponding path program 1 times [2021-01-06 23:49:17,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:17,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450412811] [2021-01-06 23:49:17,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:18,144 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 23:49:18,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450412811] [2021-01-06 23:49:18,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:49:18,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-01-06 23:49:18,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702762438] [2021-01-06 23:49:18,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:49:18,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:18,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:49:18,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:49:18,180 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2021-01-06 23:49:18,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:18,224 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2021-01-06 23:49:18,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:49:18,226 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-01-06 23:49:18,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:18,237 INFO L225 Difference]: With dead ends: 35 [2021-01-06 23:49:18,237 INFO L226 Difference]: Without dead ends: 31 [2021-01-06 23:49:18,239 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 23:49:18,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-01-06 23:49:18,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-01-06 23:49:18,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-01-06 23:49:18,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2021-01-06 23:49:18,279 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3 [2021-01-06 23:49:18,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:18,280 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2021-01-06 23:49:18,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:49:18,280 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2021-01-06 23:49:18,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-06 23:49:18,281 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:18,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:18,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 23:49:18,282 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:49:18,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:18,283 INFO L82 PathProgramCache]: Analyzing trace with hash -998701213, now seen corresponding path program 1 times [2021-01-06 23:49:18,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:18,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419695498] [2021-01-06 23:49:18,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:18,448 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 23:49:18,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419695498] [2021-01-06 23:49:18,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:49:18,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:49:18,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592527981] [2021-01-06 23:49:18,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:49:18,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:18,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:49:18,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:49:18,456 INFO L87 Difference]: Start difference. First operand 31 states and 51 transitions. Second operand 4 states. [2021-01-06 23:49:18,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:18,484 INFO L93 Difference]: Finished difference Result 26 states and 42 transitions. [2021-01-06 23:49:18,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 23:49:18,485 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-01-06 23:49:18,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:18,486 INFO L225 Difference]: With dead ends: 26 [2021-01-06 23:49:18,486 INFO L226 Difference]: Without dead ends: 24 [2021-01-06 23:49:18,487 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:49:18,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-01-06 23:49:18,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-01-06 23:49:18,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-01-06 23:49:18,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 39 transitions. [2021-01-06 23:49:18,492 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 39 transitions. Word has length 7 [2021-01-06 23:49:18,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:18,493 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 39 transitions. [2021-01-06 23:49:18,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:49:18,493 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2021-01-06 23:49:18,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-06 23:49:18,494 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:18,494 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:18,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 23:49:18,494 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-01-06 23:49:18,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:18,495 INFO L82 PathProgramCache]: Analyzing trace with hash -894975147, now seen corresponding path program 1 times [2021-01-06 23:49:18,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:18,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473559283] [2021-01-06 23:49:18,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 23:49:18,536 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 23:49:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 23:49:18,566 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 23:49:18,594 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 23:49:18,594 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 23:49:18,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 23:49:18,595 WARN L342 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-01-06 23:49:18,596 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-01-06 23:49:18,607 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,608 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,608 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,608 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,608 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,608 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,608 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,609 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,609 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,611 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,611 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,611 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,612 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,612 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,612 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,612 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,612 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,612 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,612 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,613 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,613 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,613 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,614 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,614 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,614 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,614 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,615 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,615 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,615 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,616 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,616 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,616 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,617 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,617 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,618 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,618 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,618 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,619 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,619 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,619 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,619 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,622 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,622 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,622 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,622 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,623 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,623 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,624 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,624 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,624 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,624 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,624 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,624 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,625 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,626 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,630 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,632 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,633 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,635 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,635 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,635 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,635 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,642 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,642 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,643 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,643 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,643 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,644 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,644 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,645 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,645 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,645 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,645 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,646 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,647 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,647 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,647 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,647 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,648 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:18,649 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:49:18,649 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-01-06 23:49:18,653 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:49:18,654 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:49:18,654 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:49:18,654 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:49:18,654 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:49:18,655 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:49:18,655 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:49:18,655 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:49:18,661 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:49:18,662 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 80 transitions, 184 flow [2021-01-06 23:49:18,662 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 80 transitions, 184 flow [2021-01-06 23:49:18,663 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 80 transitions, 184 flow [2021-01-06 23:49:18,699 INFO L129 PetriNetUnfolder]: 5/94 cut-off events. [2021-01-06 23:49:18,700 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-01-06 23:49:18,701 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 23:49:18,704 INFO L116 LiptonReduction]: Number of co-enabled transitions 980 [2021-01-06 23:49:20,996 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-01-06 23:49:21,317 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-01-06 23:49:21,424 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-01-06 23:49:21,560 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-01-06 23:49:21,685 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-01-06 23:49:21,832 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-01-06 23:49:21,991 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-01-06 23:49:21,995 INFO L131 LiptonReduction]: Checked pairs total: 1390 [2021-01-06 23:49:21,996 INFO L133 LiptonReduction]: Total number of compositions: 70 [2021-01-06 23:49:21,996 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 66 flow [2021-01-06 23:49:22,017 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 224 states. [2021-01-06 23:49:22,017 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2021-01-06 23:49:22,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-01-06 23:49:22,018 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:22,018 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-01-06 23:49:22,018 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:49:22,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:22,020 INFO L82 PathProgramCache]: Analyzing trace with hash 410870, now seen corresponding path program 1 times [2021-01-06 23:49:22,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:22,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634270837] [2021-01-06 23:49:22,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:22,143 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 23:49:22,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634270837] [2021-01-06 23:49:22,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:49:22,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-01-06 23:49:22,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069715688] [2021-01-06 23:49:22,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:49:22,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:22,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:49:22,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:49:22,147 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 3 states. [2021-01-06 23:49:22,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:22,188 INFO L93 Difference]: Finished difference Result 185 states and 459 transitions. [2021-01-06 23:49:22,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:49:22,189 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-01-06 23:49:22,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:22,194 INFO L225 Difference]: With dead ends: 185 [2021-01-06 23:49:22,195 INFO L226 Difference]: Without dead ends: 171 [2021-01-06 23:49:22,195 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 23:49:22,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-01-06 23:49:22,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2021-01-06 23:49:22,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2021-01-06 23:49:22,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 418 transitions. [2021-01-06 23:49:22,229 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 418 transitions. Word has length 3 [2021-01-06 23:49:22,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:22,230 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 418 transitions. [2021-01-06 23:49:22,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:49:22,230 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 418 transitions. [2021-01-06 23:49:22,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:49:22,231 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:22,231 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:22,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 23:49:22,231 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:49:22,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:22,232 INFO L82 PathProgramCache]: Analyzing trace with hash 806488971, now seen corresponding path program 1 times [2021-01-06 23:49:22,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:22,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539683612] [2021-01-06 23:49:22,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:22,330 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 23:49:22,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539683612] [2021-01-06 23:49:22,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:49:22,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:49:22,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521899960] [2021-01-06 23:49:22,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:49:22,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:22,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:49:22,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:49:22,334 INFO L87 Difference]: Start difference. First operand 171 states and 418 transitions. Second operand 5 states. [2021-01-06 23:49:22,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:22,417 INFO L93 Difference]: Finished difference Result 205 states and 460 transitions. [2021-01-06 23:49:22,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:49:22,418 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2021-01-06 23:49:22,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:22,421 INFO L225 Difference]: With dead ends: 205 [2021-01-06 23:49:22,421 INFO L226 Difference]: Without dead ends: 201 [2021-01-06 23:49:22,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:49:22,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-01-06 23:49:22,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 162. [2021-01-06 23:49:22,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2021-01-06 23:49:22,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 399 transitions. [2021-01-06 23:49:22,449 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 399 transitions. Word has length 9 [2021-01-06 23:49:22,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:22,449 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 399 transitions. [2021-01-06 23:49:22,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:49:22,449 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 399 transitions. [2021-01-06 23:49:22,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 23:49:22,451 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:22,451 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:22,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 23:49:22,451 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:49:22,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:22,452 INFO L82 PathProgramCache]: Analyzing trace with hash 827958856, now seen corresponding path program 1 times [2021-01-06 23:49:22,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:22,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461981091] [2021-01-06 23:49:22,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:22,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:22,541 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 23:49:22,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461981091] [2021-01-06 23:49:22,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060116897] [2021-01-06 23:49:22,542 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 23:49:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:22,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2021-01-06 23:49:22,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:49:22,756 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 23:49:22,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:49:22,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2021-01-06 23:49:22,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246541039] [2021-01-06 23:49:22,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:49:22,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:22,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:49:22,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-01-06 23:49:22,759 INFO L87 Difference]: Start difference. First operand 162 states and 399 transitions. Second operand 5 states. [2021-01-06 23:49:22,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:22,856 INFO L93 Difference]: Finished difference Result 189 states and 423 transitions. [2021-01-06 23:49:22,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:49:22,857 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-01-06 23:49:22,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:22,859 INFO L225 Difference]: With dead ends: 189 [2021-01-06 23:49:22,859 INFO L226 Difference]: Without dead ends: 185 [2021-01-06 23:49:22,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-01-06 23:49:22,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-01-06 23:49:22,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 153. [2021-01-06 23:49:22,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2021-01-06 23:49:22,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 367 transitions. [2021-01-06 23:49:22,879 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 367 transitions. Word has length 13 [2021-01-06 23:49:22,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:22,880 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 367 transitions. [2021-01-06 23:49:22,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:49:22,881 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 367 transitions. [2021-01-06 23:49:22,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-01-06 23:49:22,882 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:22,883 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:23,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-01-06 23:49:23,097 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:49:23,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:23,098 INFO L82 PathProgramCache]: Analyzing trace with hash -105954365, now seen corresponding path program 1 times [2021-01-06 23:49:23,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:23,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020678626] [2021-01-06 23:49:23,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:23,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 23:49:23,149 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 23:49:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 23:49:23,189 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 23:49:23,207 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 23:49:23,207 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 23:49:23,208 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 23:49:23,208 WARN L342 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-01-06 23:49:23,212 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-01-06 23:49:23,234 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,235 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,235 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,235 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,235 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,235 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,235 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,236 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,236 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,236 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,236 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,236 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,236 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,237 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,237 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,237 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,237 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,237 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,237 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,237 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,238 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,238 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,238 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,238 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,238 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,238 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,238 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,239 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,239 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,239 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,239 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,239 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,239 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,239 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,240 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,240 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,240 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,240 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,240 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,240 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,240 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,240 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,241 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,241 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,241 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,241 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,242 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,242 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,242 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,245 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,245 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,246 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,246 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,246 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,246 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,246 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,246 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,246 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,247 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,247 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,247 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,247 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,248 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,248 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,248 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,249 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,249 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,253 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,253 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,253 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,254 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,254 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,254 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,257 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,257 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,257 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,257 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,258 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,258 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,258 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,258 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,258 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,258 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,258 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,259 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,259 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,259 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,259 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,259 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,259 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,259 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,259 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,259 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,259 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,260 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,260 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,260 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,260 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,260 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,260 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,261 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,261 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,261 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,263 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,263 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,264 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,264 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,264 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,265 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,265 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,266 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,266 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,266 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,267 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,268 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,268 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,269 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,270 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,270 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,270 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,270 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,270 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,271 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,272 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,272 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,272 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,272 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,272 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:23,273 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:49:23,274 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-01-06 23:49:23,275 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:49:23,275 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:49:23,275 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:49:23,275 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:49:23,275 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:49:23,275 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:49:23,275 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:49:23,275 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:49:23,277 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:49:23,278 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 97 transitions, 236 flow [2021-01-06 23:49:23,278 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 97 transitions, 236 flow [2021-01-06 23:49:23,278 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 97 transitions, 236 flow [2021-01-06 23:49:23,307 INFO L129 PetriNetUnfolder]: 6/115 cut-off events. [2021-01-06 23:49:23,307 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-01-06 23:49:23,309 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 23:49:23,312 INFO L116 LiptonReduction]: Number of co-enabled transitions 1380 [2021-01-06 23:49:26,175 WARN L197 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2021-01-06 23:49:26,321 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-01-06 23:49:26,646 WARN L197 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2021-01-06 23:49:26,824 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-01-06 23:49:26,830 INFO L131 LiptonReduction]: Checked pairs total: 1830 [2021-01-06 23:49:26,830 INFO L133 LiptonReduction]: Total number of compositions: 86 [2021-01-06 23:49:26,831 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 27 transitions, 96 flow [2021-01-06 23:49:26,869 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 683 states. [2021-01-06 23:49:26,869 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states. [2021-01-06 23:49:26,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-01-06 23:49:26,870 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:26,870 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-01-06 23:49:26,870 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 23:49:26,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:26,871 INFO L82 PathProgramCache]: Analyzing trace with hash 608948, now seen corresponding path program 1 times [2021-01-06 23:49:26,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:26,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648257578] [2021-01-06 23:49:26,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:26,916 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 23:49:26,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648257578] [2021-01-06 23:49:26,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:49:26,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-01-06 23:49:26,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478441257] [2021-01-06 23:49:26,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:49:26,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:26,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:49:26,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:49:26,919 INFO L87 Difference]: Start difference. First operand 683 states. Second operand 3 states. [2021-01-06 23:49:26,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:26,963 INFO L93 Difference]: Finished difference Result 600 states and 1886 transitions. [2021-01-06 23:49:26,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:49:26,963 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-01-06 23:49:26,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:26,972 INFO L225 Difference]: With dead ends: 600 [2021-01-06 23:49:26,972 INFO L226 Difference]: Without dead ends: 559 [2021-01-06 23:49:26,973 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 23:49:26,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2021-01-06 23:49:27,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2021-01-06 23:49:27,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2021-01-06 23:49:27,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 1737 transitions. [2021-01-06 23:49:27,087 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 1737 transitions. Word has length 3 [2021-01-06 23:49:27,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:27,088 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 1737 transitions. [2021-01-06 23:49:27,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:49:27,091 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 1737 transitions. [2021-01-06 23:49:27,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:49:27,092 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:27,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:27,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 23:49:27,093 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 23:49:27,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:27,095 INFO L82 PathProgramCache]: Analyzing trace with hash -242150196, now seen corresponding path program 1 times [2021-01-06 23:49:27,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:27,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480621185] [2021-01-06 23:49:27,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:27,226 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 23:49:27,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480621185] [2021-01-06 23:49:27,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:49:27,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:49:27,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844696094] [2021-01-06 23:49:27,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:49:27,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:27,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:49:27,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:49:27,233 INFO L87 Difference]: Start difference. First operand 559 states and 1737 transitions. Second operand 5 states. [2021-01-06 23:49:27,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:27,350 INFO L93 Difference]: Finished difference Result 817 states and 2317 transitions. [2021-01-06 23:49:27,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:49:27,351 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2021-01-06 23:49:27,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:27,363 INFO L225 Difference]: With dead ends: 817 [2021-01-06 23:49:27,363 INFO L226 Difference]: Without dead ends: 812 [2021-01-06 23:49:27,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:49:27,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2021-01-06 23:49:27,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 585. [2021-01-06 23:49:27,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2021-01-06 23:49:27,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 1832 transitions. [2021-01-06 23:49:27,408 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 1832 transitions. Word has length 9 [2021-01-06 23:49:27,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:27,408 INFO L481 AbstractCegarLoop]: Abstraction has 585 states and 1832 transitions. [2021-01-06 23:49:27,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:49:27,409 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 1832 transitions. [2021-01-06 23:49:27,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 23:49:27,416 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:27,416 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:27,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 23:49:27,417 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 23:49:27,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:27,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1898841947, now seen corresponding path program 1 times [2021-01-06 23:49:27,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:27,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461457177] [2021-01-06 23:49:27,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:27,528 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 23:49:27,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461457177] [2021-01-06 23:49:27,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915254343] [2021-01-06 23:49:27,529 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 23:49:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:27,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 23:49:27,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:49:27,685 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 23:49:27,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:49:27,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2021-01-06 23:49:27,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088074972] [2021-01-06 23:49:27,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:49:27,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:27,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:49:27,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-01-06 23:49:27,687 INFO L87 Difference]: Start difference. First operand 585 states and 1832 transitions. Second operand 5 states. [2021-01-06 23:49:27,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:27,789 INFO L93 Difference]: Finished difference Result 843 states and 2406 transitions. [2021-01-06 23:49:27,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:49:27,789 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-01-06 23:49:27,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:27,797 INFO L225 Difference]: With dead ends: 843 [2021-01-06 23:49:27,798 INFO L226 Difference]: Without dead ends: 836 [2021-01-06 23:49:27,798 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-01-06 23:49:27,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2021-01-06 23:49:27,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 611. [2021-01-06 23:49:27,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2021-01-06 23:49:27,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1906 transitions. [2021-01-06 23:49:27,836 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1906 transitions. Word has length 13 [2021-01-06 23:49:27,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:27,836 INFO L481 AbstractCegarLoop]: Abstraction has 611 states and 1906 transitions. [2021-01-06 23:49:27,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:49:27,837 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1906 transitions. [2021-01-06 23:49:27,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:49:27,840 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:27,840 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:28,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-01-06 23:49:28,055 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 23:49:28,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:28,056 INFO L82 PathProgramCache]: Analyzing trace with hash -800464392, now seen corresponding path program 1 times [2021-01-06 23:49:28,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:28,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665100989] [2021-01-06 23:49:28,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:28,224 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 23:49:28,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665100989] [2021-01-06 23:49:28,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674505568] [2021-01-06 23:49:28,225 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 23:49:28,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:28,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 16 conjunts are in the unsatisfiable core [2021-01-06 23:49:28,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:49:28,421 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 23:49:28,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:49:28,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-01-06 23:49:28,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914084408] [2021-01-06 23:49:28,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-01-06 23:49:28,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:28,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-01-06 23:49:28,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-01-06 23:49:28,426 INFO L87 Difference]: Start difference. First operand 611 states and 1906 transitions. Second operand 12 states. [2021-01-06 23:49:28,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:28,761 INFO L93 Difference]: Finished difference Result 1059 states and 2818 transitions. [2021-01-06 23:49:28,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:49:28,761 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2021-01-06 23:49:28,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:28,770 INFO L225 Difference]: With dead ends: 1059 [2021-01-06 23:49:28,770 INFO L226 Difference]: Without dead ends: 1052 [2021-01-06 23:49:28,771 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2021-01-06 23:49:28,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2021-01-06 23:49:28,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 591. [2021-01-06 23:49:28,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2021-01-06 23:49:28,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1840 transitions. [2021-01-06 23:49:28,805 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1840 transitions. Word has length 15 [2021-01-06 23:49:28,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:28,806 INFO L481 AbstractCegarLoop]: Abstraction has 591 states and 1840 transitions. [2021-01-06 23:49:28,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-01-06 23:49:28,806 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1840 transitions. [2021-01-06 23:49:28,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:49:28,807 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:28,807 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:29,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-01-06 23:49:29,021 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 23:49:29,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:29,022 INFO L82 PathProgramCache]: Analyzing trace with hash -573997344, now seen corresponding path program 2 times [2021-01-06 23:49:29,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:29,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390314271] [2021-01-06 23:49:29,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:29,113 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 23:49:29,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390314271] [2021-01-06 23:49:29,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:49:29,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 23:49:29,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440312945] [2021-01-06 23:49:29,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:49:29,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:29,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:49:29,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:49:29,116 INFO L87 Difference]: Start difference. First operand 591 states and 1840 transitions. Second operand 7 states. [2021-01-06 23:49:29,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:29,388 INFO L93 Difference]: Finished difference Result 1053 states and 2807 transitions. [2021-01-06 23:49:29,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:49:29,389 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2021-01-06 23:49:29,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:29,397 INFO L225 Difference]: With dead ends: 1053 [2021-01-06 23:49:29,397 INFO L226 Difference]: Without dead ends: 1045 [2021-01-06 23:49:29,397 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-01-06 23:49:29,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2021-01-06 23:49:29,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 536. [2021-01-06 23:49:29,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2021-01-06 23:49:29,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1688 transitions. [2021-01-06 23:49:29,428 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1688 transitions. Word has length 15 [2021-01-06 23:49:29,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:29,428 INFO L481 AbstractCegarLoop]: Abstraction has 536 states and 1688 transitions. [2021-01-06 23:49:29,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:49:29,429 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1688 transitions. [2021-01-06 23:49:29,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-06 23:49:29,429 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:29,430 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:29,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-06 23:49:29,430 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 23:49:29,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:29,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1518312316, now seen corresponding path program 1 times [2021-01-06 23:49:29,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:29,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402540997] [2021-01-06 23:49:29,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:29,520 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 23:49:29,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402540997] [2021-01-06 23:49:29,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864676394] [2021-01-06 23:49:29,521 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 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 23:49:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:29,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 23:49:29,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:49:29,658 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 23:49:29,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:49:29,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 10 [2021-01-06 23:49:29,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592191896] [2021-01-06 23:49:29,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:49:29,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:29,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:49:29,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-01-06 23:49:29,664 INFO L87 Difference]: Start difference. First operand 536 states and 1688 transitions. Second operand 5 states. [2021-01-06 23:49:29,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:29,757 INFO L93 Difference]: Finished difference Result 736 states and 2123 transitions. [2021-01-06 23:49:29,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:49:29,757 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2021-01-06 23:49:29,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:29,764 INFO L225 Difference]: With dead ends: 736 [2021-01-06 23:49:29,764 INFO L226 Difference]: Without dead ends: 728 [2021-01-06 23:49:29,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-01-06 23:49:29,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2021-01-06 23:49:29,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 549. [2021-01-06 23:49:29,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 549 states. [2021-01-06 23:49:29,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 1684 transitions. [2021-01-06 23:49:29,792 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 1684 transitions. Word has length 17 [2021-01-06 23:49:29,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:29,793 INFO L481 AbstractCegarLoop]: Abstraction has 549 states and 1684 transitions. [2021-01-06 23:49:29,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:49:29,793 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 1684 transitions. [2021-01-06 23:49:29,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 23:49:29,795 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:29,795 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:30,008 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:49:30,009 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 23:49:30,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:30,010 INFO L82 PathProgramCache]: Analyzing trace with hash 173383506, now seen corresponding path program 1 times [2021-01-06 23:49:30,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:30,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984753920] [2021-01-06 23:49:30,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 23:49:30,027 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 23:49:30,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 23:49:30,043 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 23:49:30,052 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 23:49:30,053 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 23:49:30,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-06 23:49:30,053 WARN L342 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-01-06 23:49:30,053 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-01-06 23:49:30,066 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,066 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,067 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,067 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,067 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,067 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,067 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,067 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,067 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,067 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,068 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,068 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,068 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,068 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,068 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,068 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,068 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,068 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,069 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,069 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,069 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,069 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,069 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,069 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,069 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,069 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,070 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,070 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,070 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,070 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,070 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,070 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,070 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,070 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,071 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,071 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,071 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,071 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,071 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,071 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,071 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,071 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,072 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,072 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,072 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,072 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,072 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,072 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,072 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,072 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,073 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,073 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,073 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,073 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,073 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,073 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,074 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,074 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,074 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,074 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,074 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,074 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,074 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,074 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,075 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,075 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,075 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,075 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,075 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,075 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,075 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,076 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,076 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,076 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,076 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,076 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,076 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,076 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,077 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,077 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,077 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,077 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,077 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,077 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,077 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,077 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,078 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,078 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,078 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,078 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,078 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,078 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,078 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,078 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,079 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,079 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,079 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,079 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,079 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,079 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,080 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,080 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,080 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,080 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,080 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,080 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,080 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,080 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,081 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,081 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,081 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,081 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,081 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,081 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,081 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,082 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,082 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,082 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,082 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,082 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,082 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,082 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,083 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,083 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,083 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,083 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,083 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,083 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,083 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,083 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,084 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,084 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,084 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,084 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,084 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,084 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,085 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,085 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,085 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,085 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,086 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,087 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,087 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,087 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,087 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,088 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,089 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,089 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,089 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,090 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,090 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,091 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,091 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,091 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,091 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,092 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,093 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,093 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,093 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,093 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,094 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,094 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,095 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,095 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,095 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,096 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,096 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,096 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,097 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,098 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,098 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,098 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,098 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,098 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,099 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,100 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,100 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,100 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,100 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,100 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:30,101 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:49:30,102 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-01-06 23:49:30,103 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:49:30,103 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:49:30,103 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:49:30,103 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:49:30,103 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:49:30,103 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:49:30,103 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:49:30,103 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:49:30,105 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:49:30,106 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 126 places, 114 transitions, 292 flow [2021-01-06 23:49:30,106 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 126 places, 114 transitions, 292 flow [2021-01-06 23:49:30,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 114 transitions, 292 flow [2021-01-06 23:49:30,134 INFO L129 PetriNetUnfolder]: 7/136 cut-off events. [2021-01-06 23:49:30,135 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-01-06 23:49:30,137 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 23:49:30,142 INFO L116 LiptonReduction]: Number of co-enabled transitions 1840 [2021-01-06 23:49:33,259 WARN L197 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2021-01-06 23:49:33,407 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-01-06 23:49:33,713 WARN L197 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2021-01-06 23:49:33,863 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-01-06 23:49:33,893 INFO L131 LiptonReduction]: Checked pairs total: 2897 [2021-01-06 23:49:33,894 INFO L133 LiptonReduction]: Total number of compositions: 107 [2021-01-06 23:49:33,894 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 33 transitions, 130 flow [2021-01-06 23:49:34,036 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2060 states. [2021-01-06 23:49:34,037 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states. [2021-01-06 23:49:34,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-01-06 23:49:34,037 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:34,037 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-01-06 23:49:34,038 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 23:49:34,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:34,038 INFO L82 PathProgramCache]: Analyzing trace with hash 844595, now seen corresponding path program 1 times [2021-01-06 23:49:34,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:34,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614775434] [2021-01-06 23:49:34,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:34,067 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 23:49:34,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614775434] [2021-01-06 23:49:34,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:49:34,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-01-06 23:49:34,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971498019] [2021-01-06 23:49:34,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:49:34,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:34,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:49:34,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:49:34,069 INFO L87 Difference]: Start difference. First operand 2060 states. Second operand 3 states. [2021-01-06 23:49:34,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:34,125 INFO L93 Difference]: Finished difference Result 1889 states and 7217 transitions. [2021-01-06 23:49:34,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:49:34,125 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-01-06 23:49:34,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:34,144 INFO L225 Difference]: With dead ends: 1889 [2021-01-06 23:49:34,144 INFO L226 Difference]: Without dead ends: 1767 [2021-01-06 23:49:34,145 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 23:49:34,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2021-01-06 23:49:34,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1767. [2021-01-06 23:49:34,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1767 states. [2021-01-06 23:49:34,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 6690 transitions. [2021-01-06 23:49:34,247 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 6690 transitions. Word has length 3 [2021-01-06 23:49:34,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:34,247 INFO L481 AbstractCegarLoop]: Abstraction has 1767 states and 6690 transitions. [2021-01-06 23:49:34,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:49:34,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 6690 transitions. [2021-01-06 23:49:34,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:49:34,248 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:34,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:34,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-06 23:49:34,248 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 23:49:34,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:34,249 INFO L82 PathProgramCache]: Analyzing trace with hash 608853316, now seen corresponding path program 1 times [2021-01-06 23:49:34,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:34,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616900349] [2021-01-06 23:49:34,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:34,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:34,345 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 23:49:34,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616900349] [2021-01-06 23:49:34,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:49:34,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:49:34,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618737142] [2021-01-06 23:49:34,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:49:34,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:34,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:49:34,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:49:34,347 INFO L87 Difference]: Start difference. First operand 1767 states and 6690 transitions. Second operand 5 states. [2021-01-06 23:49:34,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:34,456 INFO L93 Difference]: Finished difference Result 2905 states and 10138 transitions. [2021-01-06 23:49:34,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:49:34,457 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2021-01-06 23:49:34,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:34,484 INFO L225 Difference]: With dead ends: 2905 [2021-01-06 23:49:34,484 INFO L226 Difference]: Without dead ends: 2899 [2021-01-06 23:49:34,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:49:34,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2021-01-06 23:49:34,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 1966. [2021-01-06 23:49:34,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1966 states. [2021-01-06 23:49:34,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 7503 transitions. [2021-01-06 23:49:34,599 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 7503 transitions. Word has length 9 [2021-01-06 23:49:34,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:34,599 INFO L481 AbstractCegarLoop]: Abstraction has 1966 states and 7503 transitions. [2021-01-06 23:49:34,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:49:34,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 7503 transitions. [2021-01-06 23:49:34,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 23:49:34,600 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:34,600 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:34,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-06 23:49:34,601 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 23:49:34,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:34,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1705235461, now seen corresponding path program 1 times [2021-01-06 23:49:34,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:34,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994173698] [2021-01-06 23:49:34,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:34,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:34,678 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 23:49:34,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994173698] [2021-01-06 23:49:34,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858782585] [2021-01-06 23:49:34,679 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 23:49:34,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:34,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2021-01-06 23:49:34,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:49:34,811 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 23:49:34,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:49:34,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2021-01-06 23:49:34,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042890016] [2021-01-06 23:49:34,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:49:34,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:34,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:49:34,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-01-06 23:49:34,813 INFO L87 Difference]: Start difference. First operand 1966 states and 7503 transitions. Second operand 5 states. [2021-01-06 23:49:34,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:34,951 INFO L93 Difference]: Finished difference Result 3204 states and 11312 transitions. [2021-01-06 23:49:34,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:49:34,952 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-01-06 23:49:34,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:34,984 INFO L225 Difference]: With dead ends: 3204 [2021-01-06 23:49:34,984 INFO L226 Difference]: Without dead ends: 3194 [2021-01-06 23:49:34,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-01-06 23:49:35,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2021-01-06 23:49:35,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 2200. [2021-01-06 23:49:35,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2200 states. [2021-01-06 23:49:35,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2200 states to 2200 states and 8453 transitions. [2021-01-06 23:49:35,114 INFO L78 Accepts]: Start accepts. Automaton has 2200 states and 8453 transitions. Word has length 13 [2021-01-06 23:49:35,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:35,115 INFO L481 AbstractCegarLoop]: Abstraction has 2200 states and 8453 transitions. [2021-01-06 23:49:35,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:49:35,115 INFO L276 IsEmpty]: Start isEmpty. Operand 2200 states and 8453 transitions. [2021-01-06 23:49:35,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:49:35,116 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:35,116 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:35,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-01-06 23:49:35,330 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 23:49:35,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:35,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1691179042, now seen corresponding path program 1 times [2021-01-06 23:49:35,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:35,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451396825] [2021-01-06 23:49:35,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:35,427 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 23:49:35,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451396825] [2021-01-06 23:49:35,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371183589] [2021-01-06 23:49:35,432 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 23:49:35,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:35,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 13 conjunts are in the unsatisfiable core [2021-01-06 23:49:35,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:49:35,609 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 23:49:35,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:49:35,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-01-06 23:49:35,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060963013] [2021-01-06 23:49:35,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-01-06 23:49:35,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:35,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-01-06 23:49:35,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-01-06 23:49:35,611 INFO L87 Difference]: Start difference. First operand 2200 states and 8453 transitions. Second operand 12 states. [2021-01-06 23:49:36,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:36,003 INFO L93 Difference]: Finished difference Result 4556 states and 14911 transitions. [2021-01-06 23:49:36,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:49:36,003 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2021-01-06 23:49:36,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:36,050 INFO L225 Difference]: With dead ends: 4556 [2021-01-06 23:49:36,050 INFO L226 Difference]: Without dead ends: 4546 [2021-01-06 23:49:36,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2021-01-06 23:49:36,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4546 states. [2021-01-06 23:49:36,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 2157. [2021-01-06 23:49:36,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2157 states. [2021-01-06 23:49:36,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 8278 transitions. [2021-01-06 23:49:36,192 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 8278 transitions. Word has length 15 [2021-01-06 23:49:36,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:36,192 INFO L481 AbstractCegarLoop]: Abstraction has 2157 states and 8278 transitions. [2021-01-06 23:49:36,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-01-06 23:49:36,193 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 8278 transitions. [2021-01-06 23:49:36,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:49:36,193 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:36,193 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:36,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-01-06 23:49:36,407 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 23:49:36,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:36,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1946238878, now seen corresponding path program 2 times [2021-01-06 23:49:36,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:36,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129440491] [2021-01-06 23:49:36,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:36,510 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 23:49:36,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129440491] [2021-01-06 23:49:36,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:49:36,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 23:49:36,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177512361] [2021-01-06 23:49:36,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:49:36,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:36,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:49:36,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:49:36,512 INFO L87 Difference]: Start difference. First operand 2157 states and 8278 transitions. Second operand 7 states. [2021-01-06 23:49:36,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:36,812 INFO L93 Difference]: Finished difference Result 4612 states and 15111 transitions. [2021-01-06 23:49:36,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:49:36,813 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2021-01-06 23:49:36,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:36,838 INFO L225 Difference]: With dead ends: 4612 [2021-01-06 23:49:36,838 INFO L226 Difference]: Without dead ends: 4601 [2021-01-06 23:49:36,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-01-06 23:49:36,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4601 states. [2021-01-06 23:49:36,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4601 to 2035. [2021-01-06 23:49:36,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2035 states. [2021-01-06 23:49:36,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2035 states to 2035 states and 7845 transitions. [2021-01-06 23:49:36,984 INFO L78 Accepts]: Start accepts. Automaton has 2035 states and 7845 transitions. Word has length 15 [2021-01-06 23:49:36,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:36,984 INFO L481 AbstractCegarLoop]: Abstraction has 2035 states and 7845 transitions. [2021-01-06 23:49:36,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:49:36,984 INFO L276 IsEmpty]: Start isEmpty. Operand 2035 states and 7845 transitions. [2021-01-06 23:49:36,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-06 23:49:36,985 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:36,985 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:36,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-01-06 23:49:36,986 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 23:49:36,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:36,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1847020699, now seen corresponding path program 1 times [2021-01-06 23:49:36,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:36,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490914216] [2021-01-06 23:49:36,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:37,070 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 23:49:37,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490914216] [2021-01-06 23:49:37,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698913915] [2021-01-06 23:49:37,071 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 23:49:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:37,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjunts are in the unsatisfiable core [2021-01-06 23:49:37,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:49:37,266 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 23:49:37,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:49:37,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 10 [2021-01-06 23:49:37,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848027864] [2021-01-06 23:49:37,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:49:37,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:37,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:49:37,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-01-06 23:49:37,276 INFO L87 Difference]: Start difference. First operand 2035 states and 7845 transitions. Second operand 5 states. [2021-01-06 23:49:37,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:37,385 INFO L93 Difference]: Finished difference Result 3265 states and 11681 transitions. [2021-01-06 23:49:37,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:49:37,386 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2021-01-06 23:49:37,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:37,401 INFO L225 Difference]: With dead ends: 3265 [2021-01-06 23:49:37,401 INFO L226 Difference]: Without dead ends: 3250 [2021-01-06 23:49:37,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-01-06 23:49:37,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2021-01-06 23:49:37,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 2281. [2021-01-06 23:49:37,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2281 states. [2021-01-06 23:49:37,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 8755 transitions. [2021-01-06 23:49:37,517 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 8755 transitions. Word has length 17 [2021-01-06 23:49:37,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:37,518 INFO L481 AbstractCegarLoop]: Abstraction has 2281 states and 8755 transitions. [2021-01-06 23:49:37,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:49:37,518 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 8755 transitions. [2021-01-06 23:49:37,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:49:37,519 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:37,519 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:37,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:49:37,734 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 23:49:37,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:37,735 INFO L82 PathProgramCache]: Analyzing trace with hash -440983810, now seen corresponding path program 1 times [2021-01-06 23:49:37,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:37,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912370275] [2021-01-06 23:49:37,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:37,827 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 23:49:37,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912370275] [2021-01-06 23:49:37,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565237280] [2021-01-06 23:49:37,828 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 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 23:49:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:37,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 13 conjunts are in the unsatisfiable core [2021-01-06 23:49:37,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:49:38,052 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 23:49:38,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:49:38,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 14 [2021-01-06 23:49:38,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444560190] [2021-01-06 23:49:38,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-01-06 23:49:38,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:38,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-01-06 23:49:38,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2021-01-06 23:49:38,056 INFO L87 Difference]: Start difference. First operand 2281 states and 8755 transitions. Second operand 16 states. [2021-01-06 23:49:39,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:39,059 INFO L93 Difference]: Finished difference Result 5911 states and 18956 transitions. [2021-01-06 23:49:39,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-06 23:49:39,060 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 19 [2021-01-06 23:49:39,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:39,085 INFO L225 Difference]: With dead ends: 5911 [2021-01-06 23:49:39,085 INFO L226 Difference]: Without dead ends: 5889 [2021-01-06 23:49:39,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=331, Invalid=1075, Unknown=0, NotChecked=0, Total=1406 [2021-01-06 23:49:39,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5889 states. [2021-01-06 23:49:39,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5889 to 2305. [2021-01-06 23:49:39,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2305 states. [2021-01-06 23:49:39,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 8815 transitions. [2021-01-06 23:49:39,249 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 8815 transitions. Word has length 19 [2021-01-06 23:49:39,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:39,251 INFO L481 AbstractCegarLoop]: Abstraction has 2305 states and 8815 transitions. [2021-01-06 23:49:39,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-01-06 23:49:39,251 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 8815 transitions. [2021-01-06 23:49:39,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:49:39,255 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:39,256 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:39,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-01-06 23:49:39,470 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 23:49:39,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:39,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1798913580, now seen corresponding path program 1 times [2021-01-06 23:49:39,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:39,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277073836] [2021-01-06 23:49:39,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:39,562 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 23:49:39,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277073836] [2021-01-06 23:49:39,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874989018] [2021-01-06 23:49:39,563 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 23:49:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:39,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 12 conjunts are in the unsatisfiable core [2021-01-06 23:49:39,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:49:39,797 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 23:49:39,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:49:39,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2021-01-06 23:49:39,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723448346] [2021-01-06 23:49:39,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-01-06 23:49:39,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:39,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-01-06 23:49:39,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2021-01-06 23:49:39,799 INFO L87 Difference]: Start difference. First operand 2305 states and 8815 transitions. Second operand 20 states. [2021-01-06 23:49:41,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:41,104 INFO L93 Difference]: Finished difference Result 7023 states and 22323 transitions. [2021-01-06 23:49:41,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-01-06 23:49:41,104 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 19 [2021-01-06 23:49:41,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:41,134 INFO L225 Difference]: With dead ends: 7023 [2021-01-06 23:49:41,135 INFO L226 Difference]: Without dead ends: 7008 [2021-01-06 23:49:41,136 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=500, Invalid=1756, Unknown=0, NotChecked=0, Total=2256 [2021-01-06 23:49:41,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7008 states. [2021-01-06 23:49:41,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7008 to 2314. [2021-01-06 23:49:41,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2314 states. [2021-01-06 23:49:41,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 8833 transitions. [2021-01-06 23:49:41,301 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 8833 transitions. Word has length 19 [2021-01-06 23:49:41,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:41,301 INFO L481 AbstractCegarLoop]: Abstraction has 2314 states and 8833 transitions. [2021-01-06 23:49:41,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-01-06 23:49:41,301 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 8833 transitions. [2021-01-06 23:49:41,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:49:41,303 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:41,303 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:41,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:49:41,517 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 23:49:41,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:41,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1165401684, now seen corresponding path program 2 times [2021-01-06 23:49:41,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:41,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225322086] [2021-01-06 23:49:41,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:41,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:41,617 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 23:49:41,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225322086] [2021-01-06 23:49:41,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174278636] [2021-01-06 23:49:41,618 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 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 23:49:41,693 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:49:41,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:49:41,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2021-01-06 23:49:41,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:49:41,804 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 23:49:41,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:49:41,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2021-01-06 23:49:41,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090057813] [2021-01-06 23:49:41,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:49:41,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:41,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:49:41,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2021-01-06 23:49:41,806 INFO L87 Difference]: Start difference. First operand 2314 states and 8833 transitions. Second operand 7 states. [2021-01-06 23:49:42,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:42,148 INFO L93 Difference]: Finished difference Result 4982 states and 16559 transitions. [2021-01-06 23:49:42,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:49:42,149 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2021-01-06 23:49:42,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:42,167 INFO L225 Difference]: With dead ends: 4982 [2021-01-06 23:49:42,168 INFO L226 Difference]: Without dead ends: 4965 [2021-01-06 23:49:42,168 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 23:49:42,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4965 states. [2021-01-06 23:49:42,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4965 to 2231. [2021-01-06 23:49:42,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2231 states. [2021-01-06 23:49:42,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 8528 transitions. [2021-01-06 23:49:42,296 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 8528 transitions. Word has length 19 [2021-01-06 23:49:42,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:42,296 INFO L481 AbstractCegarLoop]: Abstraction has 2231 states and 8528 transitions. [2021-01-06 23:49:42,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:49:42,297 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 8528 transitions. [2021-01-06 23:49:42,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:49:42,298 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:42,298 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:42,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:49:42,513 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 23:49:42,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:42,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1165408318, now seen corresponding path program 2 times [2021-01-06 23:49:42,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:42,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617950353] [2021-01-06 23:49:42,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:42,612 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 23:49:42,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617950353] [2021-01-06 23:49:42,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300928471] [2021-01-06 23:49:42,613 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 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 23:49:42,687 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:49:42,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:49:42,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2021-01-06 23:49:42,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:49:42,801 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 23:49:42,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:49:42,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2021-01-06 23:49:42,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566890763] [2021-01-06 23:49:42,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:49:42,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:42,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:49:42,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2021-01-06 23:49:42,804 INFO L87 Difference]: Start difference. First operand 2231 states and 8528 transitions. Second operand 7 states. [2021-01-06 23:49:43,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:43,114 INFO L93 Difference]: Finished difference Result 4772 states and 15819 transitions. [2021-01-06 23:49:43,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:49:43,115 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2021-01-06 23:49:43,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:43,131 INFO L225 Difference]: With dead ends: 4772 [2021-01-06 23:49:43,132 INFO L226 Difference]: Without dead ends: 4755 [2021-01-06 23:49:43,132 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 23:49:43,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4755 states. [2021-01-06 23:49:43,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4755 to 2161. [2021-01-06 23:49:43,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2161 states. [2021-01-06 23:49:43,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 8280 transitions. [2021-01-06 23:49:43,251 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 8280 transitions. Word has length 19 [2021-01-06 23:49:43,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:43,251 INFO L481 AbstractCegarLoop]: Abstraction has 2161 states and 8280 transitions. [2021-01-06 23:49:43,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:49:43,251 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 8280 transitions. [2021-01-06 23:49:43,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:49:43,253 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:43,253 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 23:49:43,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-01-06 23:49:43,469 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 23:49:43,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:43,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1547991177, now seen corresponding path program 1 times [2021-01-06 23:49:43,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:43,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043058457] [2021-01-06 23:49:43,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:43,588 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 23:49:43,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043058457] [2021-01-06 23:49:43,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855156104] [2021-01-06 23:49:43,589 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 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 23:49:43,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:43,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:49:43,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:49:43,883 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 23:49:43,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:49:43,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-01-06 23:49:43,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401371989] [2021-01-06 23:49:43,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-01-06 23:49:43,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:43,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-01-06 23:49:43,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2021-01-06 23:49:43,885 INFO L87 Difference]: Start difference. First operand 2161 states and 8280 transitions. Second operand 16 states. [2021-01-06 23:49:44,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:44,801 INFO L93 Difference]: Finished difference Result 6115 states and 19016 transitions. [2021-01-06 23:49:44,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:49:44,802 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2021-01-06 23:49:44,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:44,819 INFO L225 Difference]: With dead ends: 6115 [2021-01-06 23:49:44,819 INFO L226 Difference]: Without dead ends: 6096 [2021-01-06 23:49:44,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=397, Invalid=1085, Unknown=0, NotChecked=0, Total=1482 [2021-01-06 23:49:44,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6096 states. [2021-01-06 23:49:44,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6096 to 2117. [2021-01-06 23:49:44,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2117 states. [2021-01-06 23:49:44,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 8106 transitions. [2021-01-06 23:49:44,946 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 8106 transitions. Word has length 21 [2021-01-06 23:49:44,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:44,946 INFO L481 AbstractCegarLoop]: Abstraction has 2117 states and 8106 transitions. [2021-01-06 23:49:44,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-01-06 23:49:44,946 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 8106 transitions. [2021-01-06 23:49:44,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:49:44,948 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:44,948 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 23:49:45,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-01-06 23:49:45,162 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 23:49:45,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:45,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1416324087, now seen corresponding path program 2 times [2021-01-06 23:49:45,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:45,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635908659] [2021-01-06 23:49:45,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:45,287 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 23:49:45,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635908659] [2021-01-06 23:49:45,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109693473] [2021-01-06 23:49:45,288 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 23:49:45,374 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 23:49:45,374 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:49:45,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:49:45,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:49:45,545 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 23:49:45,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:49:45,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-01-06 23:49:45,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108164304] [2021-01-06 23:49:45,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-01-06 23:49:45,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:45,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-01-06 23:49:45,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2021-01-06 23:49:45,547 INFO L87 Difference]: Start difference. First operand 2117 states and 8106 transitions. Second operand 16 states. [2021-01-06 23:49:46,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:46,446 INFO L93 Difference]: Finished difference Result 5914 states and 18384 transitions. [2021-01-06 23:49:46,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:49:46,447 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2021-01-06 23:49:46,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:46,463 INFO L225 Difference]: With dead ends: 5914 [2021-01-06 23:49:46,463 INFO L226 Difference]: Without dead ends: 5903 [2021-01-06 23:49:46,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=397, Invalid=1085, Unknown=0, NotChecked=0, Total=1482 [2021-01-06 23:49:46,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5903 states. [2021-01-06 23:49:46,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5903 to 2085. [2021-01-06 23:49:46,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2085 states. [2021-01-06 23:49:46,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 7975 transitions. [2021-01-06 23:49:46,581 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 7975 transitions. Word has length 21 [2021-01-06 23:49:46,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:46,581 INFO L481 AbstractCegarLoop]: Abstraction has 2085 states and 7975 transitions. [2021-01-06 23:49:46,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-01-06 23:49:46,581 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 7975 transitions. [2021-01-06 23:49:46,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:49:46,583 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:46,584 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 23:49:46,799 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-01-06 23:49:46,800 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 23:49:46,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:46,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1549185225, now seen corresponding path program 3 times [2021-01-06 23:49:46,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:46,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165388073] [2021-01-06 23:49:46,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:46,918 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 23:49:46,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165388073] [2021-01-06 23:49:46,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338824829] [2021-01-06 23:49:46,919 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 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 23:49:47,000 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-01-06 23:49:47,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:49:47,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:49:47,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:49:47,146 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 23:49:47,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:49:47,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-01-06 23:49:47,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242707355] [2021-01-06 23:49:47,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-01-06 23:49:47,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:47,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-01-06 23:49:47,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2021-01-06 23:49:47,148 INFO L87 Difference]: Start difference. First operand 2085 states and 7975 transitions. Second operand 16 states. [2021-01-06 23:49:48,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:48,084 INFO L93 Difference]: Finished difference Result 5907 states and 18375 transitions. [2021-01-06 23:49:48,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:49:48,085 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2021-01-06 23:49:48,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:48,097 INFO L225 Difference]: With dead ends: 5907 [2021-01-06 23:49:48,097 INFO L226 Difference]: Without dead ends: 5899 [2021-01-06 23:49:48,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=397, Invalid=1085, Unknown=0, NotChecked=0, Total=1482 [2021-01-06 23:49:48,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5899 states. [2021-01-06 23:49:48,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5899 to 2008. [2021-01-06 23:49:48,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2008 states. [2021-01-06 23:49:48,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 7698 transitions. [2021-01-06 23:49:48,212 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 7698 transitions. Word has length 21 [2021-01-06 23:49:48,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:48,213 INFO L481 AbstractCegarLoop]: Abstraction has 2008 states and 7698 transitions. [2021-01-06 23:49:48,213 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-01-06 23:49:48,213 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 7698 transitions. [2021-01-06 23:49:48,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:49:48,214 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:48,214 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 23:49:48,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:49:48,429 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 23:49:48,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:48,430 INFO L82 PathProgramCache]: Analyzing trace with hash 2115879735, now seen corresponding path program 4 times [2021-01-06 23:49:48,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:48,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856220398] [2021-01-06 23:49:48,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:48,557 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 23:49:48,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856220398] [2021-01-06 23:49:48,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184600327] [2021-01-06 23:49:48,558 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 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 23:49:48,638 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 23:49:48,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:49:48,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:49:48,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:49:48,763 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 23:49:48,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:49:48,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-01-06 23:49:48,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943254541] [2021-01-06 23:49:48,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-01-06 23:49:48,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:48,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-01-06 23:49:48,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2021-01-06 23:49:48,765 INFO L87 Difference]: Start difference. First operand 2008 states and 7698 transitions. Second operand 16 states. [2021-01-06 23:49:49,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:49,537 INFO L93 Difference]: Finished difference Result 5835 states and 18155 transitions. [2021-01-06 23:49:49,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:49:49,538 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2021-01-06 23:49:49,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:49,556 INFO L225 Difference]: With dead ends: 5835 [2021-01-06 23:49:49,556 INFO L226 Difference]: Without dead ends: 5824 [2021-01-06 23:49:49,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=397, Invalid=1085, Unknown=0, NotChecked=0, Total=1482 [2021-01-06 23:49:49,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5824 states. [2021-01-06 23:49:49,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5824 to 1976. [2021-01-06 23:49:49,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1976 states. [2021-01-06 23:49:49,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 7567 transitions. [2021-01-06 23:49:49,733 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 7567 transitions. Word has length 21 [2021-01-06 23:49:49,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:49,733 INFO L481 AbstractCegarLoop]: Abstraction has 1976 states and 7567 transitions. [2021-01-06 23:49:49,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-01-06 23:49:49,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 7567 transitions. [2021-01-06 23:49:49,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:49:49,735 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:49,735 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:49,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-01-06 23:49:49,949 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 23:49:49,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:49,949 INFO L82 PathProgramCache]: Analyzing trace with hash -290678062, now seen corresponding path program 1 times [2021-01-06 23:49:49,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:49,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670476420] [2021-01-06 23:49:49,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:50,028 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 23:49:50,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670476420] [2021-01-06 23:49:50,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570740453] [2021-01-06 23:49:50,029 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 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 23:49:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:50,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 11 conjunts are in the unsatisfiable core [2021-01-06 23:49:50,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:49:50,164 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 23:49:50,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:49:50,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 11 [2021-01-06 23:49:50,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525602752] [2021-01-06 23:49:50,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:49:50,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:50,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:49:50,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-01-06 23:49:50,166 INFO L87 Difference]: Start difference. First operand 1976 states and 7567 transitions. Second operand 5 states. [2021-01-06 23:49:50,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:50,284 INFO L93 Difference]: Finished difference Result 3016 states and 10840 transitions. [2021-01-06 23:49:50,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:49:50,285 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2021-01-06 23:49:50,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:50,297 INFO L225 Difference]: With dead ends: 3016 [2021-01-06 23:49:50,297 INFO L226 Difference]: Without dead ends: 3000 [2021-01-06 23:49:50,297 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-01-06 23:49:50,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2021-01-06 23:49:50,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 2183. [2021-01-06 23:49:50,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2183 states. [2021-01-06 23:49:50,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2183 states to 2183 states and 8210 transitions. [2021-01-06 23:49:50,391 INFO L78 Accepts]: Start accepts. Automaton has 2183 states and 8210 transitions. Word has length 21 [2021-01-06 23:49:50,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:50,392 INFO L481 AbstractCegarLoop]: Abstraction has 2183 states and 8210 transitions. [2021-01-06 23:49:50,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:49:50,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2183 states and 8210 transitions. [2021-01-06 23:49:50,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:49:50,394 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:50,394 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 23:49:50,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-01-06 23:49:50,607 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 23:49:50,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:50,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1035436105, now seen corresponding path program 5 times [2021-01-06 23:49:50,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:50,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153502562] [2021-01-06 23:49:50,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:50,724 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 23:49:50,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153502562] [2021-01-06 23:49:50,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:49:50,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 23:49:50,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425200212] [2021-01-06 23:49:50,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:49:50,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:50,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:49:50,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-06 23:49:50,726 INFO L87 Difference]: Start difference. First operand 2183 states and 8210 transitions. Second operand 9 states. [2021-01-06 23:49:51,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:51,521 INFO L93 Difference]: Finished difference Result 6150 states and 19247 transitions. [2021-01-06 23:49:51,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:49:51,522 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2021-01-06 23:49:51,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:51,541 INFO L225 Difference]: With dead ends: 6150 [2021-01-06 23:49:51,542 INFO L226 Difference]: Without dead ends: 6139 [2021-01-06 23:49:51,542 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-01-06 23:49:51,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2021-01-06 23:49:51,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 2096. [2021-01-06 23:49:51,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2096 states. [2021-01-06 23:49:51,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2096 states to 2096 states and 7876 transitions. [2021-01-06 23:49:51,667 INFO L78 Accepts]: Start accepts. Automaton has 2096 states and 7876 transitions. Word has length 21 [2021-01-06 23:49:51,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:51,668 INFO L481 AbstractCegarLoop]: Abstraction has 2096 states and 7876 transitions. [2021-01-06 23:49:51,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:49:51,668 INFO L276 IsEmpty]: Start isEmpty. Operand 2096 states and 7876 transitions. [2021-01-06 23:49:51,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:49:51,670 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:51,670 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 23:49:51,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-01-06 23:49:51,670 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 23:49:51,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:51,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1029067465, now seen corresponding path program 6 times [2021-01-06 23:49:51,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:51,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120281811] [2021-01-06 23:49:51,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:51,811 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 23:49:51,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120281811] [2021-01-06 23:49:51,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:49:51,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 23:49:51,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723579352] [2021-01-06 23:49:51,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:49:51,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:51,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:49:51,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-06 23:49:51,813 INFO L87 Difference]: Start difference. First operand 2096 states and 7876 transitions. Second operand 9 states. [2021-01-06 23:49:52,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:52,590 INFO L93 Difference]: Finished difference Result 6017 states and 18791 transitions. [2021-01-06 23:49:52,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:49:52,595 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2021-01-06 23:49:52,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:52,610 INFO L225 Difference]: With dead ends: 6017 [2021-01-06 23:49:52,610 INFO L226 Difference]: Without dead ends: 6002 [2021-01-06 23:49:52,611 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-01-06 23:49:52,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6002 states. [2021-01-06 23:49:52,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6002 to 1965. [2021-01-06 23:49:52,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1965 states. [2021-01-06 23:49:52,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 7429 transitions. [2021-01-06 23:49:52,708 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 7429 transitions. Word has length 21 [2021-01-06 23:49:52,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:52,709 INFO L481 AbstractCegarLoop]: Abstraction has 1965 states and 7429 transitions. [2021-01-06 23:49:52,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:49:52,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 7429 transitions. [2021-01-06 23:49:52,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-01-06 23:49:52,711 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:52,711 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:52,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-01-06 23:49:52,711 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 23:49:52,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:52,712 INFO L82 PathProgramCache]: Analyzing trace with hash -425444958, now seen corresponding path program 1 times [2021-01-06 23:49:52,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:52,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949752860] [2021-01-06 23:49:52,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 23:49:52,724 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 23:49:52,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 23:49:52,735 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 23:49:52,743 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 23:49:52,743 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 23:49:52,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-01-06 23:49:52,744 WARN L342 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-01-06 23:49:52,744 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-01-06 23:49:52,757 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,757 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,758 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,758 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,758 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,758 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,758 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,758 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,758 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,758 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,759 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,759 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,759 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,759 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,759 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,759 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,759 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,759 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,760 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,760 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,760 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,760 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,760 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,760 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,760 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,761 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,761 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,761 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,761 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,761 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,761 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,761 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,761 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,761 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,762 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,762 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,762 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,762 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,762 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,762 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,762 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,762 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,763 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,763 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,763 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,763 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,763 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,763 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,763 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,763 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,763 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,764 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,764 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,764 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,764 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,764 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,764 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,764 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,764 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,764 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,765 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,765 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,765 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,765 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,765 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,765 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,765 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,765 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,766 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,766 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,766 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,766 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,766 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,766 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,766 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,766 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,767 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,767 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,767 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,767 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,767 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,767 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,767 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,767 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,767 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,768 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,768 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,768 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,768 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,768 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,768 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,768 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,769 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,769 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,769 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,769 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,769 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,769 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,769 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,769 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,770 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,770 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,770 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,770 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,770 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,770 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,770 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,770 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,770 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,771 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,771 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,771 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,771 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,771 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,771 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,771 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,772 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,772 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,772 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,772 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,772 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,772 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,772 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,772 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,773 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,773 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,773 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,773 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,773 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,773 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,773 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,773 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,774 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,774 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,774 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,774 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,774 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,774 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,774 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,774 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,774 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,775 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,775 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,775 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,775 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,775 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,775 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,775 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,775 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,776 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,776 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,776 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,776 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,776 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,776 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,776 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,776 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,777 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,777 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,777 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,777 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,777 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,777 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,777 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,777 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,777 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,778 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,778 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,778 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,778 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,778 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,779 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,779 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,779 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,779 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,780 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,780 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,780 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,781 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,781 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,782 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,782 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,782 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,782 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,782 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,783 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,784 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,784 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,784 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,784 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,785 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,785 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,785 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,785 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,786 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,786 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,787 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,787 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,787 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,787 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,787 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,788 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,788 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,788 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,788 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,789 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,789 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,791 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,791 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,791 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,791 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,791 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,791 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,792 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,793 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,793 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,793 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,793 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,793 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,794 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,794 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,794 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,795 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,795 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,795 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:49:52,796 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:49:52,796 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-01-06 23:49:52,797 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:49:52,797 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:49:52,797 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:49:52,797 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:49:52,797 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:49:52,797 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:49:52,797 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:49:52,797 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:49:52,799 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:49:52,799 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 146 places, 131 transitions, 352 flow [2021-01-06 23:49:52,799 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 146 places, 131 transitions, 352 flow [2021-01-06 23:49:52,799 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 146 places, 131 transitions, 352 flow [2021-01-06 23:49:52,824 INFO L129 PetriNetUnfolder]: 8/157 cut-off events. [2021-01-06 23:49:52,825 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-01-06 23:49:52,827 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 23:49:52,832 INFO L116 LiptonReduction]: Number of co-enabled transitions 2360 [2021-01-06 23:49:55,855 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2021-01-06 23:49:55,971 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-01-06 23:49:56,234 WARN L197 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2021-01-06 23:49:56,348 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-01-06 23:49:56,507 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-01-06 23:49:56,648 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-01-06 23:49:56,816 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-01-06 23:49:56,981 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-01-06 23:49:56,991 INFO L131 LiptonReduction]: Checked pairs total: 3863 [2021-01-06 23:49:56,991 INFO L133 LiptonReduction]: Total number of compositions: 121 [2021-01-06 23:49:56,992 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 39 transitions, 168 flow [2021-01-06 23:49:57,633 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6191 states. [2021-01-06 23:49:57,633 INFO L276 IsEmpty]: Start isEmpty. Operand 6191 states. [2021-01-06 23:49:57,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-01-06 23:49:57,634 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:57,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-01-06 23:49:57,634 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 23:49:57,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:57,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1111243, now seen corresponding path program 1 times [2021-01-06 23:49:57,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:57,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320757893] [2021-01-06 23:49:57,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:57,671 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 23:49:57,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320757893] [2021-01-06 23:49:57,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:49:57,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-01-06 23:49:57,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042969480] [2021-01-06 23:49:57,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:49:57,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:57,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:49:57,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:49:57,673 INFO L87 Difference]: Start difference. First operand 6191 states. Second operand 3 states. [2021-01-06 23:49:57,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:57,753 INFO L93 Difference]: Finished difference Result 5844 states and 26316 transitions. [2021-01-06 23:49:57,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:49:57,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-01-06 23:49:57,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:57,778 INFO L225 Difference]: With dead ends: 5844 [2021-01-06 23:49:57,778 INFO L226 Difference]: Without dead ends: 5479 [2021-01-06 23:49:57,779 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 23:49:58,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5479 states. [2021-01-06 23:49:58,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5479 to 5479. [2021-01-06 23:49:58,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2021-01-06 23:49:58,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 24493 transitions. [2021-01-06 23:49:58,160 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 24493 transitions. Word has length 3 [2021-01-06 23:49:58,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:58,160 INFO L481 AbstractCegarLoop]: Abstraction has 5479 states and 24493 transitions. [2021-01-06 23:49:58,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:49:58,160 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 24493 transitions. [2021-01-06 23:49:58,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:49:58,161 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:58,161 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:58,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-01-06 23:49:58,161 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 23:49:58,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:58,162 INFO L82 PathProgramCache]: Analyzing trace with hash -745341310, now seen corresponding path program 1 times [2021-01-06 23:49:58,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:58,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632081994] [2021-01-06 23:49:58,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:58,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:58,191 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 23:49:58,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632081994] [2021-01-06 23:49:58,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:49:58,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:49:58,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872967019] [2021-01-06 23:49:58,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:49:58,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:58,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:49:58,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:49:58,193 INFO L87 Difference]: Start difference. First operand 5479 states and 24493 transitions. Second operand 5 states. [2021-01-06 23:49:58,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:58,348 INFO L93 Difference]: Finished difference Result 9673 states and 40333 transitions. [2021-01-06 23:49:58,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:49:58,348 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2021-01-06 23:49:58,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:58,380 INFO L225 Difference]: With dead ends: 9673 [2021-01-06 23:49:58,381 INFO L226 Difference]: Without dead ends: 9666 [2021-01-06 23:49:58,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:49:58,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9666 states. [2021-01-06 23:49:58,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9666 to 6331. [2021-01-06 23:49:58,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6331 states. [2021-01-06 23:49:58,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6331 states to 6331 states and 28544 transitions. [2021-01-06 23:49:58,678 INFO L78 Accepts]: Start accepts. Automaton has 6331 states and 28544 transitions. Word has length 9 [2021-01-06 23:49:58,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:49:58,678 INFO L481 AbstractCegarLoop]: Abstraction has 6331 states and 28544 transitions. [2021-01-06 23:49:58,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:49:58,678 INFO L276 IsEmpty]: Start isEmpty. Operand 6331 states and 28544 transitions. [2021-01-06 23:49:58,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 23:49:58,679 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:49:58,679 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:49:58,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-01-06 23:49:58,679 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 23:49:58,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:49:58,680 INFO L82 PathProgramCache]: Analyzing trace with hash 901725382, now seen corresponding path program 1 times [2021-01-06 23:49:58,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:49:58,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117678895] [2021-01-06 23:49:58,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:49:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:58,744 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 23:49:58,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117678895] [2021-01-06 23:49:58,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228316353] [2021-01-06 23:49:58,745 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 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 23:49:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:49:58,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2021-01-06 23:49:58,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:49:59,021 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 23:49:59,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:49:59,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2021-01-06 23:49:59,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264737738] [2021-01-06 23:49:59,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:49:59,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:49:59,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:49:59,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-01-06 23:49:59,025 INFO L87 Difference]: Start difference. First operand 6331 states and 28544 transitions. Second operand 5 states. [2021-01-06 23:49:59,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:49:59,263 INFO L93 Difference]: Finished difference Result 11081 states and 46826 transitions. [2021-01-06 23:49:59,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:49:59,264 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-01-06 23:49:59,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:49:59,496 INFO L225 Difference]: With dead ends: 11081 [2021-01-06 23:49:59,496 INFO L226 Difference]: Without dead ends: 11068 [2021-01-06 23:49:59,498 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-01-06 23:49:59,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11068 states. [2021-01-06 23:50:00,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11068 to 7391. [2021-01-06 23:50:00,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7391 states. [2021-01-06 23:50:00,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7391 states to 7391 states and 33694 transitions. [2021-01-06 23:50:00,051 INFO L78 Accepts]: Start accepts. Automaton has 7391 states and 33694 transitions. Word has length 13 [2021-01-06 23:50:00,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:00,051 INFO L481 AbstractCegarLoop]: Abstraction has 7391 states and 33694 transitions. [2021-01-06 23:50:00,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:50:00,051 INFO L276 IsEmpty]: Start isEmpty. Operand 7391 states and 33694 transitions. [2021-01-06 23:50:00,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:50:00,052 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:00,052 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:00,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-01-06 23:50:00,253 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 23:50:00,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:00,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1025299782, now seen corresponding path program 1 times [2021-01-06 23:50:00,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:00,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864654494] [2021-01-06 23:50:00,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:00,395 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 23:50:00,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864654494] [2021-01-06 23:50:00,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:50:00,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 23:50:00,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603455392] [2021-01-06 23:50:00,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:50:00,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:00,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:50:00,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:50:00,397 INFO L87 Difference]: Start difference. First operand 7391 states and 33694 transitions. Second operand 7 states. [2021-01-06 23:50:00,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:00,856 INFO L93 Difference]: Finished difference Result 16749 states and 66010 transitions. [2021-01-06 23:50:00,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:50:00,857 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2021-01-06 23:50:00,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:00,928 INFO L225 Difference]: With dead ends: 16749 [2021-01-06 23:50:00,928 INFO L226 Difference]: Without dead ends: 16736 [2021-01-06 23:50:00,928 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-01-06 23:50:01,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16736 states. [2021-01-06 23:50:01,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16736 to 7303. [2021-01-06 23:50:01,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7303 states. [2021-01-06 23:50:01,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7303 states to 7303 states and 33260 transitions. [2021-01-06 23:50:01,507 INFO L78 Accepts]: Start accepts. Automaton has 7303 states and 33260 transitions. Word has length 15 [2021-01-06 23:50:01,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:01,507 INFO L481 AbstractCegarLoop]: Abstraction has 7303 states and 33260 transitions. [2021-01-06 23:50:01,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:50:01,507 INFO L276 IsEmpty]: Start isEmpty. Operand 7303 states and 33260 transitions. [2021-01-06 23:50:01,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:50:01,508 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:01,508 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:01,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-01-06 23:50:01,508 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 23:50:01,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:01,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1022204742, now seen corresponding path program 2 times [2021-01-06 23:50:01,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:01,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398260634] [2021-01-06 23:50:01,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:01,560 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 23:50:01,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398260634] [2021-01-06 23:50:01,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:50:01,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 23:50:01,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512558540] [2021-01-06 23:50:01,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:50:01,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:01,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:50:01,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:50:01,562 INFO L87 Difference]: Start difference. First operand 7303 states and 33260 transitions. Second operand 7 states. [2021-01-06 23:50:02,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:02,066 INFO L93 Difference]: Finished difference Result 17085 states and 67393 transitions. [2021-01-06 23:50:02,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:50:02,067 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2021-01-06 23:50:02,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:02,139 INFO L225 Difference]: With dead ends: 17085 [2021-01-06 23:50:02,139 INFO L226 Difference]: Without dead ends: 17071 [2021-01-06 23:50:02,140 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-01-06 23:50:02,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17071 states. [2021-01-06 23:50:02,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17071 to 7048. [2021-01-06 23:50:02,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7048 states. [2021-01-06 23:50:02,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7048 states to 7048 states and 32136 transitions. [2021-01-06 23:50:02,662 INFO L78 Accepts]: Start accepts. Automaton has 7048 states and 32136 transitions. Word has length 15 [2021-01-06 23:50:02,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:02,662 INFO L481 AbstractCegarLoop]: Abstraction has 7048 states and 32136 transitions. [2021-01-06 23:50:02,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:50:02,662 INFO L276 IsEmpty]: Start isEmpty. Operand 7048 states and 32136 transitions. [2021-01-06 23:50:02,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-06 23:50:02,663 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:02,664 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:02,664 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-01-06 23:50:02,664 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 23:50:02,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:02,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1059883444, now seen corresponding path program 1 times [2021-01-06 23:50:02,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:02,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211491307] [2021-01-06 23:50:02,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:02,818 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2021-01-06 23:50:02,856 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 23:50:02,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211491307] [2021-01-06 23:50:02,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479631144] [2021-01-06 23:50:02,857 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 23:50:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:02,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjunts are in the unsatisfiable core [2021-01-06 23:50:02,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:03,015 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 23:50:03,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:03,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 10 [2021-01-06 23:50:03,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483724685] [2021-01-06 23:50:03,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:50:03,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:03,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:50:03,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-01-06 23:50:03,017 INFO L87 Difference]: Start difference. First operand 7048 states and 32136 transitions. Second operand 5 states. [2021-01-06 23:50:03,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:03,291 INFO L93 Difference]: Finished difference Result 12234 states and 52488 transitions. [2021-01-06 23:50:03,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:50:03,291 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2021-01-06 23:50:03,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:03,332 INFO L225 Difference]: With dead ends: 12234 [2021-01-06 23:50:03,332 INFO L226 Difference]: Without dead ends: 12212 [2021-01-06 23:50:03,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2021-01-06 23:50:03,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12212 states. [2021-01-06 23:50:03,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12212 to 8342. [2021-01-06 23:50:03,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8342 states. [2021-01-06 23:50:03,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8342 states to 8342 states and 38278 transitions. [2021-01-06 23:50:03,718 INFO L78 Accepts]: Start accepts. Automaton has 8342 states and 38278 transitions. Word has length 17 [2021-01-06 23:50:03,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:03,718 INFO L481 AbstractCegarLoop]: Abstraction has 8342 states and 38278 transitions. [2021-01-06 23:50:03,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:50:03,718 INFO L276 IsEmpty]: Start isEmpty. Operand 8342 states and 38278 transitions. [2021-01-06 23:50:03,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:50:03,719 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:03,719 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:03,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-01-06 23:50:03,920 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 23:50:03,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:03,921 INFO L82 PathProgramCache]: Analyzing trace with hash -658508568, now seen corresponding path program 1 times [2021-01-06 23:50:03,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:03,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254040291] [2021-01-06 23:50:03,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:03,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:04,007 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 23:50:04,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254040291] [2021-01-06 23:50:04,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550156679] [2021-01-06 23:50:04,007 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 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 23:50:04,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:04,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 13 conjunts are in the unsatisfiable core [2021-01-06 23:50:04,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:04,208 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 23:50:04,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:04,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2021-01-06 23:50:04,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001170297] [2021-01-06 23:50:04,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:50:04,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:04,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:50:04,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2021-01-06 23:50:04,210 INFO L87 Difference]: Start difference. First operand 8342 states and 38278 transitions. Second operand 7 states. [2021-01-06 23:50:04,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:04,766 INFO L93 Difference]: Finished difference Result 19016 states and 76191 transitions. [2021-01-06 23:50:04,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:50:04,767 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2021-01-06 23:50:04,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:04,832 INFO L225 Difference]: With dead ends: 19016 [2021-01-06 23:50:04,832 INFO L226 Difference]: Without dead ends: 18998 [2021-01-06 23:50:04,833 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 23:50:04,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18998 states. [2021-01-06 23:50:05,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18998 to 8452. [2021-01-06 23:50:05,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8452 states. [2021-01-06 23:50:05,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8452 states to 8452 states and 38704 transitions. [2021-01-06 23:50:05,327 INFO L78 Accepts]: Start accepts. Automaton has 8452 states and 38704 transitions. Word has length 19 [2021-01-06 23:50:05,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:05,327 INFO L481 AbstractCegarLoop]: Abstraction has 8452 states and 38704 transitions. [2021-01-06 23:50:05,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:50:05,327 INFO L276 IsEmpty]: Start isEmpty. Operand 8452 states and 38704 transitions. [2021-01-06 23:50:05,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:50:05,328 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:05,328 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:05,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-01-06 23:50:05,529 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 23:50:05,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:05,530 INFO L82 PathProgramCache]: Analyzing trace with hash -655410304, now seen corresponding path program 1 times [2021-01-06 23:50:05,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:05,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007078439] [2021-01-06 23:50:05,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:05,601 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 23:50:05,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007078439] [2021-01-06 23:50:05,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154242528] [2021-01-06 23:50:05,602 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 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 23:50:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:05,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 12 conjunts are in the unsatisfiable core [2021-01-06 23:50:05,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:05,823 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 23:50:05,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:50:05,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-01-06 23:50:05,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704668781] [2021-01-06 23:50:05,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-01-06 23:50:05,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:05,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-01-06 23:50:05,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2021-01-06 23:50:05,825 INFO L87 Difference]: Start difference. First operand 8452 states and 38704 transitions. Second operand 19 states. [2021-01-06 23:50:07,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:07,342 INFO L93 Difference]: Finished difference Result 24179 states and 94894 transitions. [2021-01-06 23:50:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-01-06 23:50:07,343 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 19 [2021-01-06 23:50:07,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:07,442 INFO L225 Difference]: With dead ends: 24179 [2021-01-06 23:50:07,442 INFO L226 Difference]: Without dead ends: 24136 [2021-01-06 23:50:07,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=429, Invalid=1377, Unknown=0, NotChecked=0, Total=1806 [2021-01-06 23:50:07,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24136 states. [2021-01-06 23:50:08,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24136 to 8480. [2021-01-06 23:50:08,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8480 states. [2021-01-06 23:50:08,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8480 states to 8480 states and 38825 transitions. [2021-01-06 23:50:08,101 INFO L78 Accepts]: Start accepts. Automaton has 8480 states and 38825 transitions. Word has length 19 [2021-01-06 23:50:08,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:08,101 INFO L481 AbstractCegarLoop]: Abstraction has 8480 states and 38825 transitions. [2021-01-06 23:50:08,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-01-06 23:50:08,106 INFO L276 IsEmpty]: Start isEmpty. Operand 8480 states and 38825 transitions. [2021-01-06 23:50:08,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:50:08,108 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:08,108 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:08,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-01-06 23:50:08,324 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 23:50:08,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:08,325 INFO L82 PathProgramCache]: Analyzing trace with hash -640741848, now seen corresponding path program 2 times [2021-01-06 23:50:08,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:08,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196670551] [2021-01-06 23:50:08,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:08,407 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 23:50:08,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196670551] [2021-01-06 23:50:08,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830158304] [2021-01-06 23:50:08,408 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 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 23:50:08,521 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:50:08,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:50:08,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2021-01-06 23:50:08,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:08,641 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 23:50:08,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:08,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2021-01-06 23:50:08,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034629495] [2021-01-06 23:50:08,643 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:50:08,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:08,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:50:08,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2021-01-06 23:50:08,644 INFO L87 Difference]: Start difference. First operand 8480 states and 38825 transitions. Second operand 7 states. [2021-01-06 23:50:09,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:09,287 INFO L93 Difference]: Finished difference Result 19852 states and 79846 transitions. [2021-01-06 23:50:09,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:50:09,288 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2021-01-06 23:50:09,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:09,343 INFO L225 Difference]: With dead ends: 19852 [2021-01-06 23:50:09,343 INFO L226 Difference]: Without dead ends: 19827 [2021-01-06 23:50:09,344 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 23:50:09,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19827 states. [2021-01-06 23:50:09,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19827 to 8379. [2021-01-06 23:50:09,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8379 states. [2021-01-06 23:50:09,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8379 states to 8379 states and 38406 transitions. [2021-01-06 23:50:09,891 INFO L78 Accepts]: Start accepts. Automaton has 8379 states and 38406 transitions. Word has length 19 [2021-01-06 23:50:09,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:09,892 INFO L481 AbstractCegarLoop]: Abstraction has 8379 states and 38406 transitions. [2021-01-06 23:50:09,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:50:09,892 INFO L276 IsEmpty]: Start isEmpty. Operand 8379 states and 38406 transitions. [2021-01-06 23:50:09,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:50:09,893 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:09,893 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:10,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:10,094 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 23:50:10,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:10,095 INFO L82 PathProgramCache]: Analyzing trace with hash -640738624, now seen corresponding path program 2 times [2021-01-06 23:50:10,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:10,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319091609] [2021-01-06 23:50:10,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:10,182 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 23:50:10,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319091609] [2021-01-06 23:50:10,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893303102] [2021-01-06 23:50:10,183 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 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 23:50:10,270 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:50:10,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:50:10,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2021-01-06 23:50:10,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:10,374 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 23:50:10,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:10,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2021-01-06 23:50:10,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198152535] [2021-01-06 23:50:10,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:50:10,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:10,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:50:10,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2021-01-06 23:50:10,376 INFO L87 Difference]: Start difference. First operand 8379 states and 38406 transitions. Second operand 7 states. [2021-01-06 23:50:10,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:10,775 INFO L93 Difference]: Finished difference Result 19555 states and 78564 transitions. [2021-01-06 23:50:10,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:50:10,776 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2021-01-06 23:50:10,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:10,834 INFO L225 Difference]: With dead ends: 19555 [2021-01-06 23:50:10,834 INFO L226 Difference]: Without dead ends: 19530 [2021-01-06 23:50:10,835 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 23:50:11,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19530 states. [2021-01-06 23:50:11,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19530 to 8317. [2021-01-06 23:50:11,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8317 states. [2021-01-06 23:50:11,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8317 states to 8317 states and 38184 transitions. [2021-01-06 23:50:11,376 INFO L78 Accepts]: Start accepts. Automaton has 8317 states and 38184 transitions. Word has length 19 [2021-01-06 23:50:11,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:11,376 INFO L481 AbstractCegarLoop]: Abstraction has 8317 states and 38184 transitions. [2021-01-06 23:50:11,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:50:11,376 INFO L276 IsEmpty]: Start isEmpty. Operand 8317 states and 38184 transitions. [2021-01-06 23:50:11,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:50:11,377 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:11,377 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:11,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:11,578 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 23:50:11,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:11,579 INFO L82 PathProgramCache]: Analyzing trace with hash -775503288, now seen corresponding path program 1 times [2021-01-06 23:50:11,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:11,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185326522] [2021-01-06 23:50:11,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:11,657 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 23:50:11,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185326522] [2021-01-06 23:50:11,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366939493] [2021-01-06 23:50:11,658 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 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 23:50:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:11,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 11 conjunts are in the unsatisfiable core [2021-01-06 23:50:11,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:11,940 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 23:50:11,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:11,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 11 [2021-01-06 23:50:11,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61562532] [2021-01-06 23:50:11,941 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:50:11,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:11,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:50:11,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-01-06 23:50:11,942 INFO L87 Difference]: Start difference. First operand 8317 states and 38184 transitions. Second operand 5 states. [2021-01-06 23:50:12,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:12,167 INFO L93 Difference]: Finished difference Result 14141 states and 61627 transitions. [2021-01-06 23:50:12,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:50:12,168 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2021-01-06 23:50:12,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:12,218 INFO L225 Difference]: With dead ends: 14141 [2021-01-06 23:50:12,218 INFO L226 Difference]: Without dead ends: 14110 [2021-01-06 23:50:12,218 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-01-06 23:50:12,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14110 states. [2021-01-06 23:50:12,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14110 to 10049. [2021-01-06 23:50:12,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10049 states. [2021-01-06 23:50:12,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10049 states to 10049 states and 46134 transitions. [2021-01-06 23:50:12,813 INFO L78 Accepts]: Start accepts. Automaton has 10049 states and 46134 transitions. Word has length 21 [2021-01-06 23:50:12,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:12,813 INFO L481 AbstractCegarLoop]: Abstraction has 10049 states and 46134 transitions. [2021-01-06 23:50:12,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:50:12,813 INFO L276 IsEmpty]: Start isEmpty. Operand 10049 states and 46134 transitions. [2021-01-06 23:50:12,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:50:12,814 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:12,814 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 23:50:13,015 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-01-06 23:50:13,015 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 23:50:13,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:13,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1481211108, now seen corresponding path program 1 times [2021-01-06 23:50:13,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:13,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571204732] [2021-01-06 23:50:13,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:13,082 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 23:50:13,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571204732] [2021-01-06 23:50:13,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:50:13,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 23:50:13,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156778158] [2021-01-06 23:50:13,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:50:13,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:13,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:50:13,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-06 23:50:13,084 INFO L87 Difference]: Start difference. First operand 10049 states and 46134 transitions. Second operand 9 states. [2021-01-06 23:50:13,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:13,975 INFO L93 Difference]: Finished difference Result 30333 states and 116117 transitions. [2021-01-06 23:50:13,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:50:13,976 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2021-01-06 23:50:13,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:14,294 INFO L225 Difference]: With dead ends: 30333 [2021-01-06 23:50:14,294 INFO L226 Difference]: Without dead ends: 30315 [2021-01-06 23:50:14,296 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-01-06 23:50:14,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30315 states. [2021-01-06 23:50:14,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30315 to 9884. [2021-01-06 23:50:14,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9884 states. [2021-01-06 23:50:14,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9884 states to 9884 states and 45329 transitions. [2021-01-06 23:50:14,985 INFO L78 Accepts]: Start accepts. Automaton has 9884 states and 45329 transitions. Word has length 21 [2021-01-06 23:50:14,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:14,985 INFO L481 AbstractCegarLoop]: Abstraction has 9884 states and 45329 transitions. [2021-01-06 23:50:14,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:50:14,985 INFO L276 IsEmpty]: Start isEmpty. Operand 9884 states and 45329 transitions. [2021-01-06 23:50:14,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:50:14,986 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:14,986 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 23:50:14,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-01-06 23:50:14,987 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 23:50:14,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:14,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1466539428, now seen corresponding path program 2 times [2021-01-06 23:50:14,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:14,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335982451] [2021-01-06 23:50:14,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:15,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:15,064 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 23:50:15,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335982451] [2021-01-06 23:50:15,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:50:15,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 23:50:15,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210642611] [2021-01-06 23:50:15,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:50:15,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:15,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:50:15,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-06 23:50:15,067 INFO L87 Difference]: Start difference. First operand 9884 states and 45329 transitions. Second operand 9 states. [2021-01-06 23:50:15,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:15,887 INFO L93 Difference]: Finished difference Result 29916 states and 114355 transitions. [2021-01-06 23:50:15,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:50:15,887 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2021-01-06 23:50:15,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:16,187 INFO L225 Difference]: With dead ends: 29916 [2021-01-06 23:50:16,187 INFO L226 Difference]: Without dead ends: 29894 [2021-01-06 23:50:16,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-01-06 23:50:16,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29894 states. [2021-01-06 23:50:16,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29894 to 9719. [2021-01-06 23:50:16,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9719 states. [2021-01-06 23:50:16,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9719 states to 9719 states and 44527 transitions. [2021-01-06 23:50:16,988 INFO L78 Accepts]: Start accepts. Automaton has 9719 states and 44527 transitions. Word has length 21 [2021-01-06 23:50:16,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:16,988 INFO L481 AbstractCegarLoop]: Abstraction has 9719 states and 44527 transitions. [2021-01-06 23:50:16,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:50:16,989 INFO L276 IsEmpty]: Start isEmpty. Operand 9719 states and 44527 transitions. [2021-01-06 23:50:16,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:50:16,991 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:16,991 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 23:50:16,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-01-06 23:50:16,992 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 23:50:16,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:16,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1493122332, now seen corresponding path program 3 times [2021-01-06 23:50:16,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:16,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521318638] [2021-01-06 23:50:16,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:17,092 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 23:50:17,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521318638] [2021-01-06 23:50:17,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:50:17,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 23:50:17,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988968132] [2021-01-06 23:50:17,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:50:17,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:17,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:50:17,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-06 23:50:17,094 INFO L87 Difference]: Start difference. First operand 9719 states and 44527 transitions. Second operand 9 states. [2021-01-06 23:50:17,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:17,945 INFO L93 Difference]: Finished difference Result 29973 states and 114573 transitions. [2021-01-06 23:50:17,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:50:17,946 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2021-01-06 23:50:17,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:18,063 INFO L225 Difference]: With dead ends: 29973 [2021-01-06 23:50:18,063 INFO L226 Difference]: Without dead ends: 29955 [2021-01-06 23:50:18,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-01-06 23:50:18,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29955 states. [2021-01-06 23:50:18,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29955 to 9420. [2021-01-06 23:50:18,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9420 states. [2021-01-06 23:50:18,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9420 states to 9420 states and 43170 transitions. [2021-01-06 23:50:18,865 INFO L78 Accepts]: Start accepts. Automaton has 9420 states and 43170 transitions. Word has length 21 [2021-01-06 23:50:18,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:18,865 INFO L481 AbstractCegarLoop]: Abstraction has 9420 states and 43170 transitions. [2021-01-06 23:50:18,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:50:18,865 INFO L276 IsEmpty]: Start isEmpty. Operand 9420 states and 43170 transitions. [2021-01-06 23:50:18,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:50:18,867 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:18,867 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 23:50:18,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-01-06 23:50:18,867 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 23:50:18,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:18,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1510889052, now seen corresponding path program 4 times [2021-01-06 23:50:18,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:18,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588790832] [2021-01-06 23:50:18,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:18,931 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 23:50:18,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588790832] [2021-01-06 23:50:18,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:50:18,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 23:50:18,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248238023] [2021-01-06 23:50:18,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:50:18,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:18,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:50:18,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-06 23:50:18,933 INFO L87 Difference]: Start difference. First operand 9420 states and 43170 transitions. Second operand 9 states. [2021-01-06 23:50:19,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:19,880 INFO L93 Difference]: Finished difference Result 29739 states and 113643 transitions. [2021-01-06 23:50:19,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:50:19,881 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2021-01-06 23:50:19,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:19,994 INFO L225 Difference]: With dead ends: 29739 [2021-01-06 23:50:19,994 INFO L226 Difference]: Without dead ends: 29717 [2021-01-06 23:50:19,994 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-01-06 23:50:20,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29717 states. [2021-01-06 23:50:20,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29717 to 9255. [2021-01-06 23:50:20,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9255 states. [2021-01-06 23:50:20,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9255 states to 9255 states and 42368 transitions. [2021-01-06 23:50:20,803 INFO L78 Accepts]: Start accepts. Automaton has 9255 states and 42368 transitions. Word has length 21 [2021-01-06 23:50:20,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:20,803 INFO L481 AbstractCegarLoop]: Abstraction has 9255 states and 42368 transitions. [2021-01-06 23:50:20,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:50:20,803 INFO L276 IsEmpty]: Start isEmpty. Operand 9255 states and 42368 transitions. [2021-01-06 23:50:20,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:50:20,805 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:20,805 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 23:50:20,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-01-06 23:50:20,805 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 23:50:20,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:20,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1572590692, now seen corresponding path program 5 times [2021-01-06 23:50:20,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:20,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823001081] [2021-01-06 23:50:20,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:20,875 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 23:50:20,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823001081] [2021-01-06 23:50:20,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:50:20,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 23:50:20,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793474115] [2021-01-06 23:50:20,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:50:20,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:20,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:50:20,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-06 23:50:20,877 INFO L87 Difference]: Start difference. First operand 9255 states and 42368 transitions. Second operand 9 states. [2021-01-06 23:50:22,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:22,043 INFO L93 Difference]: Finished difference Result 29788 states and 113841 transitions. [2021-01-06 23:50:22,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:50:22,045 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2021-01-06 23:50:22,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:22,166 INFO L225 Difference]: With dead ends: 29788 [2021-01-06 23:50:22,167 INFO L226 Difference]: Without dead ends: 29770 [2021-01-06 23:50:22,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-01-06 23:50:22,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29770 states. [2021-01-06 23:50:22,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29770 to 8964. [2021-01-06 23:50:22,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8964 states. [2021-01-06 23:50:22,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8964 states to 8964 states and 41031 transitions. [2021-01-06 23:50:22,902 INFO L78 Accepts]: Start accepts. Automaton has 8964 states and 41031 transitions. Word has length 21 [2021-01-06 23:50:22,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:22,902 INFO L481 AbstractCegarLoop]: Abstraction has 8964 states and 41031 transitions. [2021-01-06 23:50:22,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:50:22,902 INFO L276 IsEmpty]: Start isEmpty. Operand 8964 states and 41031 transitions. [2021-01-06 23:50:22,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:50:22,904 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:22,904 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 23:50:22,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-01-06 23:50:22,904 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 23:50:22,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:22,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1569495652, now seen corresponding path program 6 times [2021-01-06 23:50:22,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:22,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731914163] [2021-01-06 23:50:22,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:22,969 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 23:50:22,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731914163] [2021-01-06 23:50:22,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:50:22,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 23:50:22,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144192503] [2021-01-06 23:50:22,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:50:22,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:22,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:50:22,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-06 23:50:22,970 INFO L87 Difference]: Start difference. First operand 8964 states and 41031 transitions. Second operand 9 states. [2021-01-06 23:50:24,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:24,136 INFO L93 Difference]: Finished difference Result 29379 states and 112099 transitions. [2021-01-06 23:50:24,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:50:24,137 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2021-01-06 23:50:24,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:24,245 INFO L225 Difference]: With dead ends: 29379 [2021-01-06 23:50:24,245 INFO L226 Difference]: Without dead ends: 29356 [2021-01-06 23:50:24,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-01-06 23:50:24,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29356 states. [2021-01-06 23:50:24,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29356 to 8573. [2021-01-06 23:50:24,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8573 states. [2021-01-06 23:50:25,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8573 states to 8573 states and 39353 transitions. [2021-01-06 23:50:25,010 INFO L78 Accepts]: Start accepts. Automaton has 8573 states and 39353 transitions. Word has length 21 [2021-01-06 23:50:25,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:25,010 INFO L481 AbstractCegarLoop]: Abstraction has 8573 states and 39353 transitions. [2021-01-06 23:50:25,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:50:25,010 INFO L276 IsEmpty]: Start isEmpty. Operand 8573 states and 39353 transitions. [2021-01-06 23:50:25,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-01-06 23:50:25,013 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:25,013 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:25,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-01-06 23:50:25,014 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 23:50:25,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:25,014 INFO L82 PathProgramCache]: Analyzing trace with hash 2048893540, now seen corresponding path program 1 times [2021-01-06 23:50:25,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:25,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369704092] [2021-01-06 23:50:25,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:25,105 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 23:50:25,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369704092] [2021-01-06 23:50:25,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873285908] [2021-01-06 23:50:25,106 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 23:50:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:25,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2021-01-06 23:50:25,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:25,337 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 23:50:25,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:25,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2021-01-06 23:50:25,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929029963] [2021-01-06 23:50:25,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:50:25,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:25,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:50:25,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2021-01-06 23:50:25,339 INFO L87 Difference]: Start difference. First operand 8573 states and 39353 transitions. Second operand 7 states. [2021-01-06 23:50:25,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:25,808 INFO L93 Difference]: Finished difference Result 19727 states and 80274 transitions. [2021-01-06 23:50:25,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:50:25,809 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2021-01-06 23:50:25,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:25,871 INFO L225 Difference]: With dead ends: 19727 [2021-01-06 23:50:25,871 INFO L226 Difference]: Without dead ends: 19703 [2021-01-06 23:50:25,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2021-01-06 23:50:26,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19703 states. [2021-01-06 23:50:26,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19703 to 8847. [2021-01-06 23:50:26,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8847 states. [2021-01-06 23:50:26,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8847 states to 8847 states and 40495 transitions. [2021-01-06 23:50:26,457 INFO L78 Accepts]: Start accepts. Automaton has 8847 states and 40495 transitions. Word has length 23 [2021-01-06 23:50:26,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:26,457 INFO L481 AbstractCegarLoop]: Abstraction has 8847 states and 40495 transitions. [2021-01-06 23:50:26,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:50:26,457 INFO L276 IsEmpty]: Start isEmpty. Operand 8847 states and 40495 transitions. [2021-01-06 23:50:26,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-01-06 23:50:26,460 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:26,460 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:26,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:26,669 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 23:50:26,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:26,670 INFO L82 PathProgramCache]: Analyzing trace with hash 2065648420, now seen corresponding path program 2 times [2021-01-06 23:50:26,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:26,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217234814] [2021-01-06 23:50:26,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:26,759 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 23:50:26,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217234814] [2021-01-06 23:50:26,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200854190] [2021-01-06 23:50:26,760 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 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 23:50:26,833 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:50:26,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:50:26,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2021-01-06 23:50:26,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:26,946 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 23:50:26,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:26,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2021-01-06 23:50:26,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457662670] [2021-01-06 23:50:26,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:50:26,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:26,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:50:26,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2021-01-06 23:50:26,947 INFO L87 Difference]: Start difference. First operand 8847 states and 40495 transitions. Second operand 7 states. [2021-01-06 23:50:27,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:27,346 INFO L93 Difference]: Finished difference Result 20209 states and 82213 transitions. [2021-01-06 23:50:27,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:50:27,351 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2021-01-06 23:50:27,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:27,419 INFO L225 Difference]: With dead ends: 20209 [2021-01-06 23:50:27,420 INFO L226 Difference]: Without dead ends: 20172 [2021-01-06 23:50:27,420 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2021-01-06 23:50:27,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20172 states. [2021-01-06 23:50:27,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20172 to 8496. [2021-01-06 23:50:27,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8496 states. [2021-01-06 23:50:27,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8496 states to 8496 states and 38896 transitions. [2021-01-06 23:50:27,962 INFO L78 Accepts]: Start accepts. Automaton has 8496 states and 38896 transitions. Word has length 23 [2021-01-06 23:50:27,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:27,962 INFO L481 AbstractCegarLoop]: Abstraction has 8496 states and 38896 transitions. [2021-01-06 23:50:27,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:50:27,963 INFO L276 IsEmpty]: Start isEmpty. Operand 8496 states and 38896 transitions. [2021-01-06 23:50:27,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-01-06 23:50:27,965 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:27,965 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:28,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2021-01-06 23:50:28,180 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 23:50:28,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:28,181 INFO L82 PathProgramCache]: Analyzing trace with hash 2065651644, now seen corresponding path program 1 times [2021-01-06 23:50:28,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:28,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813283817] [2021-01-06 23:50:28,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:28,270 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 23:50:28,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813283817] [2021-01-06 23:50:28,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609153026] [2021-01-06 23:50:28,271 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 23:50:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:28,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2021-01-06 23:50:28,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:28,480 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 23:50:28,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:28,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2021-01-06 23:50:28,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158036156] [2021-01-06 23:50:28,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:50:28,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:28,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:50:28,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2021-01-06 23:50:28,481 INFO L87 Difference]: Start difference. First operand 8496 states and 38896 transitions. Second operand 7 states. [2021-01-06 23:50:29,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:29,017 INFO L93 Difference]: Finished difference Result 20488 states and 83323 transitions. [2021-01-06 23:50:29,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:50:29,017 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2021-01-06 23:50:29,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:29,071 INFO L225 Difference]: With dead ends: 20488 [2021-01-06 23:50:29,071 INFO L226 Difference]: Without dead ends: 20451 [2021-01-06 23:50:29,071 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 23:50:29,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20451 states. [2021-01-06 23:50:29,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20451 to 8768. [2021-01-06 23:50:29,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8768 states. [2021-01-06 23:50:29,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8768 states to 8768 states and 40121 transitions. [2021-01-06 23:50:29,474 INFO L78 Accepts]: Start accepts. Automaton has 8768 states and 40121 transitions. Word has length 23 [2021-01-06 23:50:29,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:29,474 INFO L481 AbstractCegarLoop]: Abstraction has 8768 states and 40121 transitions. [2021-01-06 23:50:29,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:50:29,474 INFO L276 IsEmpty]: Start isEmpty. Operand 8768 states and 40121 transitions. [2021-01-06 23:50:29,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-01-06 23:50:29,476 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:29,476 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:29,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:29,677 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 23:50:29,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:29,678 INFO L82 PathProgramCache]: Analyzing trace with hash 2065666927, now seen corresponding path program 1 times [2021-01-06 23:50:29,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:29,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656241903] [2021-01-06 23:50:29,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:29,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:29,777 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 23:50:29,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656241903] [2021-01-06 23:50:29,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027883343] [2021-01-06 23:50:29,778 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 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 23:50:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:30,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2021-01-06 23:50:30,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:30,146 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 23:50:30,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:30,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2021-01-06 23:50:30,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689948306] [2021-01-06 23:50:30,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:50:30,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:30,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:50:30,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2021-01-06 23:50:30,148 INFO L87 Difference]: Start difference. First operand 8768 states and 40121 transitions. Second operand 7 states. [2021-01-06 23:50:30,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:30,673 INFO L93 Difference]: Finished difference Result 20313 states and 82544 transitions. [2021-01-06 23:50:30,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:50:30,674 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2021-01-06 23:50:30,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:30,737 INFO L225 Difference]: With dead ends: 20313 [2021-01-06 23:50:30,737 INFO L226 Difference]: Without dead ends: 20276 [2021-01-06 23:50:30,738 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 23:50:30,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20276 states. [2021-01-06 23:50:31,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20276 to 9144. [2021-01-06 23:50:31,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9144 states. [2021-01-06 23:50:31,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9144 states to 9144 states and 41753 transitions. [2021-01-06 23:50:31,275 INFO L78 Accepts]: Start accepts. Automaton has 9144 states and 41753 transitions. Word has length 23 [2021-01-06 23:50:31,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:31,275 INFO L481 AbstractCegarLoop]: Abstraction has 9144 states and 41753 transitions. [2021-01-06 23:50:31,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:50:31,275 INFO L276 IsEmpty]: Start isEmpty. Operand 9144 states and 41753 transitions. [2021-01-06 23:50:31,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-01-06 23:50:31,278 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:31,278 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:31,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2021-01-06 23:50:31,492 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 23:50:31,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:31,492 INFO L82 PathProgramCache]: Analyzing trace with hash 2051991804, now seen corresponding path program 2 times [2021-01-06 23:50:31,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:31,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73639570] [2021-01-06 23:50:31,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:31,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:31,578 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 23:50:31,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73639570] [2021-01-06 23:50:31,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021484833] [2021-01-06 23:50:31,578 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 23:50:31,664 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:50:31,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:50:31,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2021-01-06 23:50:31,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:31,778 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 23:50:31,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:31,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2021-01-06 23:50:31,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687708500] [2021-01-06 23:50:31,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:50:31,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:31,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:50:31,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2021-01-06 23:50:31,779 INFO L87 Difference]: Start difference. First operand 9144 states and 41753 transitions. Second operand 7 states. [2021-01-06 23:50:32,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:32,180 INFO L93 Difference]: Finished difference Result 20485 states and 83152 transitions. [2021-01-06 23:50:32,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:50:32,181 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2021-01-06 23:50:32,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:32,238 INFO L225 Difference]: With dead ends: 20485 [2021-01-06 23:50:32,238 INFO L226 Difference]: Without dead ends: 20457 [2021-01-06 23:50:32,239 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 23:50:32,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20457 states. [2021-01-06 23:50:32,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20457 to 9331. [2021-01-06 23:50:32,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9331 states. [2021-01-06 23:50:32,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9331 states to 9331 states and 42574 transitions. [2021-01-06 23:50:32,769 INFO L78 Accepts]: Start accepts. Automaton has 9331 states and 42574 transitions. Word has length 23 [2021-01-06 23:50:32,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:32,769 INFO L481 AbstractCegarLoop]: Abstraction has 9331 states and 42574 transitions. [2021-01-06 23:50:32,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:50:32,769 INFO L276 IsEmpty]: Start isEmpty. Operand 9331 states and 42574 transitions. [2021-01-06 23:50:32,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-01-06 23:50:32,771 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:32,771 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:32,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:32,981 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 23:50:32,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:32,981 INFO L82 PathProgramCache]: Analyzing trace with hash 2066678767, now seen corresponding path program 2 times [2021-01-06 23:50:32,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:32,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886753276] [2021-01-06 23:50:32,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:33,073 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 23:50:33,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886753276] [2021-01-06 23:50:33,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244525811] [2021-01-06 23:50:33,074 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 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 23:50:33,163 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:50:33,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:50:33,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2021-01-06 23:50:33,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:33,270 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 23:50:33,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:33,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2021-01-06 23:50:33,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718811265] [2021-01-06 23:50:33,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:50:33,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:33,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:50:33,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2021-01-06 23:50:33,272 INFO L87 Difference]: Start difference. First operand 9331 states and 42574 transitions. Second operand 7 states. [2021-01-06 23:50:33,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:33,882 INFO L93 Difference]: Finished difference Result 21187 states and 86251 transitions. [2021-01-06 23:50:33,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:50:33,884 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2021-01-06 23:50:33,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:33,946 INFO L225 Difference]: With dead ends: 21187 [2021-01-06 23:50:33,946 INFO L226 Difference]: Without dead ends: 21150 [2021-01-06 23:50:33,947 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 23:50:34,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21150 states. [2021-01-06 23:50:34,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21150 to 9426. [2021-01-06 23:50:34,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9426 states. [2021-01-06 23:50:34,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9426 states to 9426 states and 43057 transitions. [2021-01-06 23:50:34,328 INFO L78 Accepts]: Start accepts. Automaton has 9426 states and 43057 transitions. Word has length 23 [2021-01-06 23:50:34,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:34,328 INFO L481 AbstractCegarLoop]: Abstraction has 9426 states and 43057 transitions. [2021-01-06 23:50:34,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:50:34,329 INFO L276 IsEmpty]: Start isEmpty. Operand 9426 states and 43057 transitions. [2021-01-06 23:50:34,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:50:34,332 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:34,332 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:50:34,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-01-06 23:50:34,533 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 23:50:34,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:34,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1711227692, now seen corresponding path program 1 times [2021-01-06 23:50:34,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:34,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918650504] [2021-01-06 23:50:34,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:34,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:34,615 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:50:34,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918650504] [2021-01-06 23:50:34,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896701879] [2021-01-06 23:50:34,616 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 23:50:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:34,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjunts are in the unsatisfiable core [2021-01-06 23:50:34,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:34,786 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 23:50:34,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:34,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 12 [2021-01-06 23:50:34,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763656352] [2021-01-06 23:50:34,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:50:34,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:34,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:50:34,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-01-06 23:50:34,788 INFO L87 Difference]: Start difference. First operand 9426 states and 43057 transitions. Second operand 5 states. [2021-01-06 23:50:35,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:35,274 INFO L93 Difference]: Finished difference Result 15105 states and 66484 transitions. [2021-01-06 23:50:35,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:50:35,274 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2021-01-06 23:50:35,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:35,336 INFO L225 Difference]: With dead ends: 15105 [2021-01-06 23:50:35,336 INFO L226 Difference]: Without dead ends: 15073 [2021-01-06 23:50:35,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2021-01-06 23:50:35,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15073 states. [2021-01-06 23:50:35,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15073 to 11239. [2021-01-06 23:50:35,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11239 states. [2021-01-06 23:50:35,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11239 states to 11239 states and 51146 transitions. [2021-01-06 23:50:35,723 INFO L78 Accepts]: Start accepts. Automaton has 11239 states and 51146 transitions. Word has length 25 [2021-01-06 23:50:35,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:35,723 INFO L481 AbstractCegarLoop]: Abstraction has 11239 states and 51146 transitions. [2021-01-06 23:50:35,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:50:35,723 INFO L276 IsEmpty]: Start isEmpty. Operand 11239 states and 51146 transitions. [2021-01-06 23:50:35,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:50:35,728 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:35,728 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 23:50:35,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:35,929 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 23:50:35,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:35,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1891672280, now seen corresponding path program 1 times [2021-01-06 23:50:35,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:35,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330032577] [2021-01-06 23:50:35,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:36,038 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 23:50:36,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330032577] [2021-01-06 23:50:36,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708445649] [2021-01-06 23:50:36,039 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 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 23:50:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:36,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:50:36,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:36,324 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2021-01-06 23:50:36,431 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 23:50:36,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:36,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:50:36,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440346948] [2021-01-06 23:50:36,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:50:36,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:36,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:50:36,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:50:36,433 INFO L87 Difference]: Start difference. First operand 11239 states and 51146 transitions. Second operand 9 states. [2021-01-06 23:50:37,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:37,424 INFO L93 Difference]: Finished difference Result 33877 states and 131849 transitions. [2021-01-06 23:50:37,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:50:37,425 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:50:37,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:37,515 INFO L225 Difference]: With dead ends: 33877 [2021-01-06 23:50:37,515 INFO L226 Difference]: Without dead ends: 33851 [2021-01-06 23:50:37,515 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:50:37,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33851 states. [2021-01-06 23:50:38,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33851 to 11265. [2021-01-06 23:50:38,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11265 states. [2021-01-06 23:50:38,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11265 states to 11265 states and 51200 transitions. [2021-01-06 23:50:38,283 INFO L78 Accepts]: Start accepts. Automaton has 11265 states and 51200 transitions. Word has length 25 [2021-01-06 23:50:38,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:38,283 INFO L481 AbstractCegarLoop]: Abstraction has 11265 states and 51200 transitions. [2021-01-06 23:50:38,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:50:38,284 INFO L276 IsEmpty]: Start isEmpty. Operand 11265 states and 51200 transitions. [2021-01-06 23:50:38,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:50:38,288 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:38,288 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 23:50:38,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-01-06 23:50:38,489 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 23:50:38,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:38,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1891687563, now seen corresponding path program 1 times [2021-01-06 23:50:38,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:38,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380112908] [2021-01-06 23:50:38,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:38,595 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 23:50:38,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380112908] [2021-01-06 23:50:38,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115193433] [2021-01-06 23:50:38,596 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 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 23:50:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:38,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:50:38,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:38,983 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 23:50:38,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:38,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:50:38,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56243528] [2021-01-06 23:50:38,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:50:38,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:38,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:50:38,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:50:38,984 INFO L87 Difference]: Start difference. First operand 11265 states and 51200 transitions. Second operand 9 states. [2021-01-06 23:50:40,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:40,048 INFO L93 Difference]: Finished difference Result 33443 states and 130105 transitions. [2021-01-06 23:50:40,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:50:40,049 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:50:40,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:40,138 INFO L225 Difference]: With dead ends: 33443 [2021-01-06 23:50:40,138 INFO L226 Difference]: Without dead ends: 33417 [2021-01-06 23:50:40,138 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:50:40,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33417 states. [2021-01-06 23:50:40,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33417 to 11150. [2021-01-06 23:50:40,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11150 states. [2021-01-06 23:50:40,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11150 states to 11150 states and 50594 transitions. [2021-01-06 23:50:40,931 INFO L78 Accepts]: Start accepts. Automaton has 11150 states and 50594 transitions. Word has length 25 [2021-01-06 23:50:40,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:40,931 INFO L481 AbstractCegarLoop]: Abstraction has 11150 states and 50594 transitions. [2021-01-06 23:50:40,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:50:40,932 INFO L276 IsEmpty]: Start isEmpty. Operand 11150 states and 50594 transitions. [2021-01-06 23:50:40,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:50:40,936 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:40,936 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 23:50:41,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-01-06 23:50:41,138 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 23:50:41,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:41,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1878012440, now seen corresponding path program 2 times [2021-01-06 23:50:41,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:41,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930163416] [2021-01-06 23:50:41,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:41,245 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 23:50:41,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930163416] [2021-01-06 23:50:41,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547374675] [2021-01-06 23:50:41,246 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 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 23:50:41,332 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:50:41,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:50:41,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:50:41,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:41,610 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 23:50:41,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:41,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:50:41,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156610940] [2021-01-06 23:50:41,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:50:41,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:41,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:50:41,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:50:41,612 INFO L87 Difference]: Start difference. First operand 11150 states and 50594 transitions. Second operand 9 states. [2021-01-06 23:50:42,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:42,655 INFO L93 Difference]: Finished difference Result 33189 states and 128963 transitions. [2021-01-06 23:50:42,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:50:42,656 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:50:42,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:42,754 INFO L225 Difference]: With dead ends: 33189 [2021-01-06 23:50:42,755 INFO L226 Difference]: Without dead ends: 33161 [2021-01-06 23:50:42,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:50:43,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33161 states. [2021-01-06 23:50:43,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33161 to 10991. [2021-01-06 23:50:43,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10991 states. [2021-01-06 23:50:43,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10991 states to 10991 states and 49794 transitions. [2021-01-06 23:50:43,516 INFO L78 Accepts]: Start accepts. Automaton has 10991 states and 49794 transitions. Word has length 25 [2021-01-06 23:50:43,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:43,516 INFO L481 AbstractCegarLoop]: Abstraction has 10991 states and 49794 transitions. [2021-01-06 23:50:43,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:50:43,516 INFO L276 IsEmpty]: Start isEmpty. Operand 10991 states and 49794 transitions. [2021-01-06 23:50:43,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:50:43,520 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:43,520 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 23:50:43,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-01-06 23:50:43,722 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 23:50:43,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:43,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1892699403, now seen corresponding path program 2 times [2021-01-06 23:50:43,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:43,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746880028] [2021-01-06 23:50:43,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:43,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:43,832 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 23:50:43,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746880028] [2021-01-06 23:50:43,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361522210] [2021-01-06 23:50:43,833 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 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 23:50:43,925 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:50:43,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:50:43,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:50:43,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:44,084 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 23:50:44,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:44,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:50:44,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138421706] [2021-01-06 23:50:44,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:50:44,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:44,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:50:44,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:50:44,086 INFO L87 Difference]: Start difference. First operand 10991 states and 49794 transitions. Second operand 9 states. [2021-01-06 23:50:45,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:45,200 INFO L93 Difference]: Finished difference Result 32647 states and 126668 transitions. [2021-01-06 23:50:45,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:50:45,201 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:50:45,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:45,288 INFO L225 Difference]: With dead ends: 32647 [2021-01-06 23:50:45,288 INFO L226 Difference]: Without dead ends: 32619 [2021-01-06 23:50:45,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:50:45,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32619 states. [2021-01-06 23:50:46,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32619 to 10881. [2021-01-06 23:50:46,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10881 states. [2021-01-06 23:50:46,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10881 states to 10881 states and 49235 transitions. [2021-01-06 23:50:46,079 INFO L78 Accepts]: Start accepts. Automaton has 10881 states and 49235 transitions. Word has length 25 [2021-01-06 23:50:46,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:46,079 INFO L481 AbstractCegarLoop]: Abstraction has 10881 states and 49235 transitions. [2021-01-06 23:50:46,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:50:46,079 INFO L276 IsEmpty]: Start isEmpty. Operand 10881 states and 49235 transitions. [2021-01-06 23:50:46,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:50:46,083 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:46,083 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 23:50:46,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-01-06 23:50:46,284 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 23:50:46,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:46,284 INFO L82 PathProgramCache]: Analyzing trace with hash 813242776, now seen corresponding path program 3 times [2021-01-06 23:50:46,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:46,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992237894] [2021-01-06 23:50:46,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:46,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:46,397 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 23:50:46,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992237894] [2021-01-06 23:50:46,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497237696] [2021-01-06 23:50:46,398 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 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 23:50:46,492 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-01-06 23:50:46,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:50:46,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:50:46,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:46,662 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 23:50:46,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:46,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:50:46,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710189698] [2021-01-06 23:50:46,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:50:46,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:46,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:50:46,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:50:46,665 INFO L87 Difference]: Start difference. First operand 10881 states and 49235 transitions. Second operand 9 states. [2021-01-06 23:50:47,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:47,905 INFO L93 Difference]: Finished difference Result 32649 states and 126657 transitions. [2021-01-06 23:50:47,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:50:47,906 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:50:47,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:47,995 INFO L225 Difference]: With dead ends: 32649 [2021-01-06 23:50:47,996 INFO L226 Difference]: Without dead ends: 32623 [2021-01-06 23:50:47,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:50:48,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32623 states. [2021-01-06 23:50:48,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32623 to 10608. [2021-01-06 23:50:48,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10608 states. [2021-01-06 23:50:48,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10608 states to 10608 states and 47948 transitions. [2021-01-06 23:50:48,758 INFO L78 Accepts]: Start accepts. Automaton has 10608 states and 47948 transitions. Word has length 25 [2021-01-06 23:50:48,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:48,758 INFO L481 AbstractCegarLoop]: Abstraction has 10608 states and 47948 transitions. [2021-01-06 23:50:48,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:50:48,758 INFO L276 IsEmpty]: Start isEmpty. Operand 10608 states and 47948 transitions. [2021-01-06 23:50:48,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:50:48,762 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:48,762 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 23:50:48,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:48,966 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 23:50:48,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:48,967 INFO L82 PathProgramCache]: Analyzing trace with hash 813258059, now seen corresponding path program 3 times [2021-01-06 23:50:48,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:48,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927602573] [2021-01-06 23:50:48,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:49,080 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 23:50:49,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927602573] [2021-01-06 23:50:49,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021478749] [2021-01-06 23:50:49,081 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 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 23:50:49,165 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-01-06 23:50:49,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:50:49,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:50:49,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:49,337 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 23:50:49,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:49,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:50:49,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250648066] [2021-01-06 23:50:49,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:50:49,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:49,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:50:49,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:50:49,339 INFO L87 Difference]: Start difference. First operand 10608 states and 47948 transitions. Second operand 9 states. [2021-01-06 23:50:50,038 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-01-06 23:50:50,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:50,487 INFO L93 Difference]: Finished difference Result 32110 states and 124409 transitions. [2021-01-06 23:50:50,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:50:50,488 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:50:50,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:50,581 INFO L225 Difference]: With dead ends: 32110 [2021-01-06 23:50:50,582 INFO L226 Difference]: Without dead ends: 32084 [2021-01-06 23:50:50,582 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 23:50:50,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32084 states. [2021-01-06 23:50:51,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32084 to 10323. [2021-01-06 23:50:51,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10323 states. [2021-01-06 23:50:51,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10323 states to 10323 states and 46617 transitions. [2021-01-06 23:50:51,403 INFO L78 Accepts]: Start accepts. Automaton has 10323 states and 46617 transitions. Word has length 25 [2021-01-06 23:50:51,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:51,403 INFO L481 AbstractCegarLoop]: Abstraction has 10323 states and 46617 transitions. [2021-01-06 23:50:51,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:50:51,403 INFO L276 IsEmpty]: Start isEmpty. Operand 10323 states and 46617 transitions. [2021-01-06 23:50:51,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:50:51,408 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:51,408 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 23:50:51,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,37 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:50:51,609 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 23:50:51,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:51,610 INFO L82 PathProgramCache]: Analyzing trace with hash 816337816, now seen corresponding path program 4 times [2021-01-06 23:50:51,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:51,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037748092] [2021-01-06 23:50:51,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:51,738 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 23:50:51,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037748092] [2021-01-06 23:50:51,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93062873] [2021-01-06 23:50:51,738 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 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 23:50:51,826 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 23:50:51,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:50:51,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:50:51,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:52,072 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 23:50:52,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:50:52,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-01-06 23:50:52,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616923936] [2021-01-06 23:50:52,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-01-06 23:50:52,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:52,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-01-06 23:50:52,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2021-01-06 23:50:52,074 INFO L87 Difference]: Start difference. First operand 10323 states and 46617 transitions. Second operand 25 states. [2021-01-06 23:50:56,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:56,389 INFO L93 Difference]: Finished difference Result 39782 states and 150906 transitions. [2021-01-06 23:50:56,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-01-06 23:50:56,390 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 25 [2021-01-06 23:50:56,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:56,499 INFO L225 Difference]: With dead ends: 39782 [2021-01-06 23:50:56,499 INFO L226 Difference]: Without dead ends: 39725 [2021-01-06 23:50:56,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4606 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2434, Invalid=10448, Unknown=0, NotChecked=0, Total=12882 [2021-01-06 23:50:56,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39725 states. [2021-01-06 23:50:57,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39725 to 10243. [2021-01-06 23:50:57,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10243 states. [2021-01-06 23:50:57,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10243 states to 10243 states and 46264 transitions. [2021-01-06 23:50:57,298 INFO L78 Accepts]: Start accepts. Automaton has 10243 states and 46264 transitions. Word has length 25 [2021-01-06 23:50:57,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:50:57,298 INFO L481 AbstractCegarLoop]: Abstraction has 10243 states and 46264 transitions. [2021-01-06 23:50:57,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-01-06 23:50:57,298 INFO L276 IsEmpty]: Start isEmpty. Operand 10243 states and 46264 transitions. [2021-01-06 23:50:57,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:50:57,303 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:50:57,304 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 23:50:57,504 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2021-01-06 23:50:57,504 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 23:50:57,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:50:57,505 INFO L82 PathProgramCache]: Analyzing trace with hash 816356323, now seen corresponding path program 1 times [2021-01-06 23:50:57,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:50:57,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570328659] [2021-01-06 23:50:57,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:50:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:57,617 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 23:50:57,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570328659] [2021-01-06 23:50:57,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421728514] [2021-01-06 23:50:57,617 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 23:50:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:50:57,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:50:57,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:50:57,899 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 23:50:57,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:50:57,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:50:57,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778984278] [2021-01-06 23:50:57,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:50:57,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:50:57,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:50:57,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:50:57,901 INFO L87 Difference]: Start difference. First operand 10243 states and 46264 transitions. Second operand 9 states. [2021-01-06 23:50:59,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:50:59,108 INFO L93 Difference]: Finished difference Result 32141 states and 124784 transitions. [2021-01-06 23:50:59,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:50:59,108 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:50:59,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:50:59,209 INFO L225 Difference]: With dead ends: 32141 [2021-01-06 23:50:59,210 INFO L226 Difference]: Without dead ends: 32115 [2021-01-06 23:50:59,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:50:59,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32115 states. [2021-01-06 23:50:59,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32115 to 10251. [2021-01-06 23:50:59,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10251 states. [2021-01-06 23:51:00,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10251 states to 10251 states and 46267 transitions. [2021-01-06 23:51:00,012 INFO L78 Accepts]: Start accepts. Automaton has 10251 states and 46267 transitions. Word has length 25 [2021-01-06 23:51:00,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:00,012 INFO L481 AbstractCegarLoop]: Abstraction has 10251 states and 46267 transitions. [2021-01-06 23:51:00,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:51:00,012 INFO L276 IsEmpty]: Start isEmpty. Operand 10251 states and 46267 transitions. [2021-01-06 23:51:00,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [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 [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:00,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:00,217 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 23:51:00,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:00,218 INFO L82 PathProgramCache]: Analyzing trace with hash 831024779, now seen corresponding path program 4 times [2021-01-06 23:51:00,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:00,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555005622] [2021-01-06 23:51:00,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:00,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:00,331 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 23:51:00,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555005622] [2021-01-06 23:51:00,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376641689] [2021-01-06 23:51:00,332 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 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 23:51:00,419 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 23:51:00,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:00,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:51:00,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:00,681 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 23:51:00,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:51:00,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-01-06 23:51:00,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423328569] [2021-01-06 23:51:00,683 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-01-06 23:51:00,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:00,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-01-06 23:51:00,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2021-01-06 23:51:00,683 INFO L87 Difference]: Start difference. First operand 10251 states and 46267 transitions. Second operand 25 states. [2021-01-06 23:51:04,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:04,835 INFO L93 Difference]: Finished difference Result 39098 states and 148134 transitions. [2021-01-06 23:51:04,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-01-06 23:51:04,836 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 25 [2021-01-06 23:51:04,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:04,982 INFO L225 Difference]: With dead ends: 39098 [2021-01-06 23:51:04,983 INFO L226 Difference]: Without dead ends: 39041 [2021-01-06 23:51:04,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4333 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2354, Invalid=9856, Unknown=0, NotChecked=0, Total=12210 [2021-01-06 23:51:05,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39041 states. [2021-01-06 23:51:05,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39041 to 10299. [2021-01-06 23:51:05,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10299 states. [2021-01-06 23:51:05,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10299 states to 10299 states and 46501 transitions. [2021-01-06 23:51:05,756 INFO L78 Accepts]: Start accepts. Automaton has 10299 states and 46501 transitions. Word has length 25 [2021-01-06 23:51:05,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:05,756 INFO L481 AbstractCegarLoop]: Abstraction has 10299 states and 46501 transitions. [2021-01-06 23:51:05,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-01-06 23:51:05,756 INFO L276 IsEmpty]: Start isEmpty. Operand 10299 states and 46501 transitions. [2021-01-06 23:51:05,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:51:05,760 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:05,760 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 23:51:05,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,40 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:05,961 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 23:51:05,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:05,962 INFO L82 PathProgramCache]: Analyzing trace with hash 831028003, now seen corresponding path program 2 times [2021-01-06 23:51:05,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:05,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870167555] [2021-01-06 23:51:05,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:06,088 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 23:51:06,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870167555] [2021-01-06 23:51:06,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936170669] [2021-01-06 23:51:06,088 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 23:51:06,179 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:51:06,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:06,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:51:06,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:06,376 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 23:51:06,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:06,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:51:06,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235967009] [2021-01-06 23:51:06,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:51:06,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:06,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:51:06,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:51:06,378 INFO L87 Difference]: Start difference. First operand 10299 states and 46501 transitions. Second operand 9 states. [2021-01-06 23:51:07,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:07,670 INFO L93 Difference]: Finished difference Result 31570 states and 122547 transitions. [2021-01-06 23:51:07,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:51:07,671 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:51:07,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:07,755 INFO L225 Difference]: With dead ends: 31570 [2021-01-06 23:51:07,755 INFO L226 Difference]: Without dead ends: 31537 [2021-01-06 23:51:07,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:51:07,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31537 states. [2021-01-06 23:51:08,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31537 to 10244. [2021-01-06 23:51:08,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10244 states. [2021-01-06 23:51:08,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10244 states to 10244 states and 46203 transitions. [2021-01-06 23:51:08,538 INFO L78 Accepts]: Start accepts. Automaton has 10244 states and 46203 transitions. Word has length 25 [2021-01-06 23:51:08,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:08,538 INFO L481 AbstractCegarLoop]: Abstraction has 10244 states and 46203 transitions. [2021-01-06 23:51:08,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:51:08,538 INFO L276 IsEmpty]: Start isEmpty. Operand 10244 states and 46203 transitions. [2021-01-06 23:51:08,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:51:08,542 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:08,542 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 23:51:08,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:08,743 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 23:51:08,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:08,744 INFO L82 PathProgramCache]: Analyzing trace with hash 557378584, now seen corresponding path program 5 times [2021-01-06 23:51:08,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:08,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572731371] [2021-01-06 23:51:08,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:08,874 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 23:51:08,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572731371] [2021-01-06 23:51:08,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105523256] [2021-01-06 23:51:08,875 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 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 23:51:08,970 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-01-06 23:51:08,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:08,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:51:08,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:09,208 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 23:51:09,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:51:09,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-01-06 23:51:09,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76221308] [2021-01-06 23:51:09,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-01-06 23:51:09,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:09,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-01-06 23:51:09,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2021-01-06 23:51:09,211 INFO L87 Difference]: Start difference. First operand 10244 states and 46203 transitions. Second operand 25 states. [2021-01-06 23:51:13,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:13,574 INFO L93 Difference]: Finished difference Result 39166 states and 148792 transitions. [2021-01-06 23:51:13,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-01-06 23:51:13,575 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 25 [2021-01-06 23:51:13,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:13,683 INFO L225 Difference]: With dead ends: 39166 [2021-01-06 23:51:13,683 INFO L226 Difference]: Without dead ends: 39120 [2021-01-06 23:51:13,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4774 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2507, Invalid=10833, Unknown=0, NotChecked=0, Total=13340 [2021-01-06 23:51:13,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39120 states. [2021-01-06 23:51:14,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39120 to 10032. [2021-01-06 23:51:14,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10032 states. [2021-01-06 23:51:14,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10032 states to 10032 states and 45208 transitions. [2021-01-06 23:51:14,500 INFO L78 Accepts]: Start accepts. Automaton has 10032 states and 45208 transitions. Word has length 25 [2021-01-06 23:51:14,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:14,500 INFO L481 AbstractCegarLoop]: Abstraction has 10032 states and 45208 transitions. [2021-01-06 23:51:14,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-01-06 23:51:14,500 INFO L276 IsEmpty]: Start isEmpty. Operand 10032 states and 45208 transitions. [2021-01-06 23:51:14,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:51:14,503 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:14,503 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 23:51:14,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-01-06 23:51:14,709 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 23:51:14,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:14,709 INFO L82 PathProgramCache]: Analyzing trace with hash 574133464, now seen corresponding path program 6 times [2021-01-06 23:51:14,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:14,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657213181] [2021-01-06 23:51:14,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:14,822 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 23:51:14,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657213181] [2021-01-06 23:51:14,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507091631] [2021-01-06 23:51:14,823 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 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 23:51:14,907 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-01-06 23:51:14,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:14,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:51:14,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:15,093 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 23:51:15,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:15,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:51:15,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173308673] [2021-01-06 23:51:15,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:51:15,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:15,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:51:15,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:51:15,094 INFO L87 Difference]: Start difference. First operand 10032 states and 45208 transitions. Second operand 9 states. [2021-01-06 23:51:16,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:16,150 INFO L93 Difference]: Finished difference Result 31191 states and 120629 transitions. [2021-01-06 23:51:16,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:51:16,150 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:51:16,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:16,467 INFO L225 Difference]: With dead ends: 31191 [2021-01-06 23:51:16,467 INFO L226 Difference]: Without dead ends: 31163 [2021-01-06 23:51:16,467 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:51:16,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31163 states. [2021-01-06 23:51:16,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31163 to 9737. [2021-01-06 23:51:16,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9737 states. [2021-01-06 23:51:16,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9737 states to 9737 states and 43850 transitions. [2021-01-06 23:51:16,990 INFO L78 Accepts]: Start accepts. Automaton has 9737 states and 43850 transitions. Word has length 25 [2021-01-06 23:51:16,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:16,991 INFO L481 AbstractCegarLoop]: Abstraction has 9737 states and 43850 transitions. [2021-01-06 23:51:16,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:51:16,991 INFO L276 IsEmpty]: Start isEmpty. Operand 9737 states and 43850 transitions. [2021-01-06 23:51:16,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:51:16,995 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:16,995 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 23:51:17,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:17,196 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 23:51:17,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:17,197 INFO L82 PathProgramCache]: Analyzing trace with hash 574151971, now seen corresponding path program 3 times [2021-01-06 23:51:17,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:17,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764665871] [2021-01-06 23:51:17,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:17,309 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 23:51:17,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764665871] [2021-01-06 23:51:17,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904549244] [2021-01-06 23:51:17,310 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 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 23:51:17,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-01-06 23:51:17,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:17,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:51:17,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:17,838 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 23:51:17,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:17,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:51:17,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088856652] [2021-01-06 23:51:17,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:51:17,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:17,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:51:17,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:51:17,840 INFO L87 Difference]: Start difference. First operand 9737 states and 43850 transitions. Second operand 9 states. [2021-01-06 23:51:18,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:18,849 INFO L93 Difference]: Finished difference Result 31014 states and 120075 transitions. [2021-01-06 23:51:18,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:51:18,850 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:51:18,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:18,933 INFO L225 Difference]: With dead ends: 31014 [2021-01-06 23:51:18,933 INFO L226 Difference]: Without dead ends: 30988 [2021-01-06 23:51:18,933 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 23:51:19,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30988 states. [2021-01-06 23:51:19,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30988 to 9643. [2021-01-06 23:51:19,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9643 states. [2021-01-06 23:51:19,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9643 states to 9643 states and 43388 transitions. [2021-01-06 23:51:19,610 INFO L78 Accepts]: Start accepts. Automaton has 9643 states and 43388 transitions. Word has length 25 [2021-01-06 23:51:19,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:19,610 INFO L481 AbstractCegarLoop]: Abstraction has 9643 states and 43388 transitions. [2021-01-06 23:51:19,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:51:19,610 INFO L276 IsEmpty]: Start isEmpty. Operand 9643 states and 43388 transitions. [2021-01-06 23:51:19,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:51:19,614 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:19,614 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 23:51:19,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:19,815 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 23:51:19,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:19,816 INFO L82 PathProgramCache]: Analyzing trace with hash 575163811, now seen corresponding path program 4 times [2021-01-06 23:51:19,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:19,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719372569] [2021-01-06 23:51:19,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:19,929 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 23:51:19,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719372569] [2021-01-06 23:51:19,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473357928] [2021-01-06 23:51:19,930 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 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 23:51:20,016 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 23:51:20,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:20,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:51:20,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:20,288 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 23:51:20,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:51:20,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-01-06 23:51:20,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845143149] [2021-01-06 23:51:20,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-01-06 23:51:20,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:20,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-01-06 23:51:20,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2021-01-06 23:51:20,290 INFO L87 Difference]: Start difference. First operand 9643 states and 43388 transitions. Second operand 25 states. [2021-01-06 23:51:24,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:24,581 INFO L93 Difference]: Finished difference Result 39082 states and 148557 transitions. [2021-01-06 23:51:24,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-01-06 23:51:24,582 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 25 [2021-01-06 23:51:24,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:24,685 INFO L225 Difference]: With dead ends: 39082 [2021-01-06 23:51:24,685 INFO L226 Difference]: Without dead ends: 39025 [2021-01-06 23:51:24,686 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4566 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2442, Invalid=10440, Unknown=0, NotChecked=0, Total=12882 [2021-01-06 23:51:24,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39025 states. [2021-01-06 23:51:25,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39025 to 9531. [2021-01-06 23:51:25,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9531 states. [2021-01-06 23:51:25,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9531 states to 9531 states and 42888 transitions. [2021-01-06 23:51:25,450 INFO L78 Accepts]: Start accepts. Automaton has 9531 states and 42888 transitions. Word has length 25 [2021-01-06 23:51:25,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:25,450 INFO L481 AbstractCegarLoop]: Abstraction has 9531 states and 42888 transitions. [2021-01-06 23:51:25,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-01-06 23:51:25,450 INFO L276 IsEmpty]: Start isEmpty. Operand 9531 states and 42888 transitions. [2021-01-06 23:51:25,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:51:25,454 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:25,454 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 23:51:25,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-01-06 23:51:25,655 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 23:51:25,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:25,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1786648139, now seen corresponding path program 5 times [2021-01-06 23:51:25,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:25,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475734303] [2021-01-06 23:51:25,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:25,791 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 23:51:25,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475734303] [2021-01-06 23:51:25,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929131851] [2021-01-06 23:51:25,792 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 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 23:51:25,879 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-01-06 23:51:25,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:25,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:51:25,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:26,073 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 23:51:26,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:26,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:51:26,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374894375] [2021-01-06 23:51:26,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:51:26,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:26,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:51:26,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:51:26,075 INFO L87 Difference]: Start difference. First operand 9531 states and 42888 transitions. Second operand 9 states. [2021-01-06 23:51:27,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:27,320 INFO L93 Difference]: Finished difference Result 31114 states and 120473 transitions. [2021-01-06 23:51:27,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:51:27,325 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:51:27,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:27,411 INFO L225 Difference]: With dead ends: 31114 [2021-01-06 23:51:27,411 INFO L226 Difference]: Without dead ends: 31088 [2021-01-06 23:51:27,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:51:27,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31088 states. [2021-01-06 23:51:28,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31088 to 9368. [2021-01-06 23:51:28,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9368 states. [2021-01-06 23:51:28,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9368 states to 9368 states and 42129 transitions. [2021-01-06 23:51:28,140 INFO L78 Accepts]: Start accepts. Automaton has 9368 states and 42129 transitions. Word has length 25 [2021-01-06 23:51:28,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:28,140 INFO L481 AbstractCegarLoop]: Abstraction has 9368 states and 42129 transitions. [2021-01-06 23:51:28,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:51:28,141 INFO L276 IsEmpty]: Start isEmpty. Operand 9368 states and 42129 transitions. [2021-01-06 23:51:28,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:51:28,144 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:28,144 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 23:51:28,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,46 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:28,345 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 23:51:28,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:28,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1803403019, now seen corresponding path program 6 times [2021-01-06 23:51:28,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:28,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383938888] [2021-01-06 23:51:28,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:28,464 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 23:51:28,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383938888] [2021-01-06 23:51:28,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939344500] [2021-01-06 23:51:28,465 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 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 23:51:28,550 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-01-06 23:51:28,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:28,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:51:28,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:28,743 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 23:51:28,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:28,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:51:28,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59843456] [2021-01-06 23:51:28,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:51:28,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:28,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:51:28,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:51:28,745 INFO L87 Difference]: Start difference. First operand 9368 states and 42129 transitions. Second operand 9 states. [2021-01-06 23:51:30,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:30,040 INFO L93 Difference]: Finished difference Result 30701 states and 118720 transitions. [2021-01-06 23:51:30,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:51:30,041 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:51:30,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:30,143 INFO L225 Difference]: With dead ends: 30701 [2021-01-06 23:51:30,143 INFO L226 Difference]: Without dead ends: 30668 [2021-01-06 23:51:30,144 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:51:30,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30668 states. [2021-01-06 23:51:30,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30668 to 9053. [2021-01-06 23:51:30,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9053 states. [2021-01-06 23:51:30,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9053 states to 9053 states and 40718 transitions. [2021-01-06 23:51:30,643 INFO L78 Accepts]: Start accepts. Automaton has 9053 states and 40718 transitions. Word has length 25 [2021-01-06 23:51:30,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:30,643 INFO L481 AbstractCegarLoop]: Abstraction has 9053 states and 40718 transitions. [2021-01-06 23:51:30,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:51:30,643 INFO L276 IsEmpty]: Start isEmpty. Operand 9053 states and 40718 transitions. [2021-01-06 23:51:30,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:51:30,646 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:30,646 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 23:51:30,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable71 [2021-01-06 23:51:30,847 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 23:51:30,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:30,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1803406243, now seen corresponding path program 5 times [2021-01-06 23:51:30,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:30,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161893795] [2021-01-06 23:51:30,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:30,960 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 23:51:30,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161893795] [2021-01-06 23:51:30,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454278801] [2021-01-06 23:51:30,961 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 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 23:51:31,057 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-01-06 23:51:31,057 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:31,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:51:31,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:31,412 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 23:51:31,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:31,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:51:31,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619314288] [2021-01-06 23:51:31,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:51:31,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:31,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:51:31,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:51:31,413 INFO L87 Difference]: Start difference. First operand 9053 states and 40718 transitions. Second operand 9 states. [2021-01-06 23:51:32,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:32,473 INFO L93 Difference]: Finished difference Result 30236 states and 116809 transitions. [2021-01-06 23:51:32,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:51:32,476 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:51:32,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:32,559 INFO L225 Difference]: With dead ends: 30236 [2021-01-06 23:51:32,559 INFO L226 Difference]: Without dead ends: 30210 [2021-01-06 23:51:32,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:51:32,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30210 states. [2021-01-06 23:51:33,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30210 to 8951. [2021-01-06 23:51:33,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8951 states. [2021-01-06 23:51:33,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8951 states to 8951 states and 40236 transitions. [2021-01-06 23:51:33,237 INFO L78 Accepts]: Start accepts. Automaton has 8951 states and 40236 transitions. Word has length 25 [2021-01-06 23:51:33,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:33,237 INFO L481 AbstractCegarLoop]: Abstraction has 8951 states and 40236 transitions. [2021-01-06 23:51:33,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:51:33,237 INFO L276 IsEmpty]: Start isEmpty. Operand 8951 states and 40236 transitions. [2021-01-06 23:51:33,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 23:51:33,240 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:33,240 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 23:51:33,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:33,441 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 23:51:33,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:33,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1789746403, now seen corresponding path program 6 times [2021-01-06 23:51:33,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:33,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304986871] [2021-01-06 23:51:33,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:33,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:33,560 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 23:51:33,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304986871] [2021-01-06 23:51:33,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676911272] [2021-01-06 23:51:33,561 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 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 23:51:33,663 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-01-06 23:51:33,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:51:33,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:51:33,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:33,854 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 23:51:33,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:33,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2021-01-06 23:51:33,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624021037] [2021-01-06 23:51:33,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 23:51:33,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:33,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 23:51:33,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2021-01-06 23:51:33,856 INFO L87 Difference]: Start difference. First operand 8951 states and 40236 transitions. Second operand 9 states. [2021-01-06 23:51:35,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:35,047 INFO L93 Difference]: Finished difference Result 29960 states and 115617 transitions. [2021-01-06 23:51:35,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:51:35,048 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-01-06 23:51:35,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:35,129 INFO L225 Difference]: With dead ends: 29960 [2021-01-06 23:51:35,130 INFO L226 Difference]: Without dead ends: 29927 [2021-01-06 23:51:35,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-01-06 23:51:35,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29927 states. [2021-01-06 23:51:35,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29927 to 8560. [2021-01-06 23:51:35,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8560 states. [2021-01-06 23:51:35,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 38495 transitions. [2021-01-06 23:51:35,821 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 38495 transitions. Word has length 25 [2021-01-06 23:51:35,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:35,822 INFO L481 AbstractCegarLoop]: Abstraction has 8560 states and 38495 transitions. [2021-01-06 23:51:35,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 23:51:35,822 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 38495 transitions. [2021-01-06 23:51:35,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-01-06 23:51:35,826 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:35,826 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:36,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,49 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:36,027 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 23:51:36,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:36,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1513513479, now seen corresponding path program 1 times [2021-01-06 23:51:36,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:36,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879283361] [2021-01-06 23:51:36,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:36,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 23:51:36,039 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 23:51:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 23:51:36,062 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 23:51:36,078 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 23:51:36,078 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 23:51:36,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-01-06 23:51:36,078 WARN L342 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2021-01-06 23:51:36,078 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2021-01-06 23:51:36,104 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,104 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,104 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,104 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,105 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,105 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,105 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,105 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,105 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,105 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,105 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,105 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,105 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,105 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,106 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,106 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,106 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,106 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,106 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,106 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,106 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,106 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,106 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,107 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,107 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,107 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,107 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,107 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,107 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,107 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,107 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,108 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,108 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,108 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,108 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,108 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,108 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,108 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,108 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,108 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,109 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,109 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,109 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,109 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,109 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,109 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,109 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,109 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,109 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,109 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,110 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,110 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,110 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,110 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,110 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,110 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,110 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,110 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,110 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,111 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,111 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,111 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,111 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,111 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,111 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,111 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,111 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,111 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,112 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,112 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,112 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,112 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,112 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,112 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,112 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,112 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,112 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,112 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,112 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,113 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,113 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,113 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,113 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,113 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,113 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,113 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,113 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,114 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,114 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,114 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,114 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,114 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,114 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,114 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,114 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,114 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,114 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,115 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,115 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,115 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,115 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,115 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,115 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,116 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,116 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,116 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,116 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,116 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,116 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,118 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,118 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,118 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,118 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,118 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,118 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,119 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,119 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,119 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,119 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,119 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,119 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,122 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,122 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,122 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,122 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,122 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,122 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,122 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,123 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,123 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,123 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,123 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,123 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,124 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,124 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,124 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,124 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,124 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,124 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,125 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,125 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,125 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,125 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,125 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,125 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,125 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,125 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,125 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,125 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,126 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,126 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,126 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,126 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,126 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,126 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,126 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,127 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,127 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,127 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,127 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,127 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,128 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,129 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,129 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,129 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,129 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,130 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,130 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,130 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,130 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,131 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,132 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,132 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,132 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,132 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,132 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,133 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,134 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,134 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,134 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,134 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,135 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,135 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,135 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,135 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,136 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,137 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,137 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,137 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,137 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,137 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,137 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,138 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,139 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,139 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,139 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,139 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,139 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,140 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,140 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,141 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,141 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,141 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,141 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,142 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,142 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,142 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,142 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,142 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,142 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,144 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,144 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,144 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,144 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,144 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,144 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,145 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,146 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,146 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:51:36,147 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:51:36,147 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-01-06 23:51:36,148 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:51:36,148 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:51:36,148 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:51:36,148 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:51:36,148 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:51:36,148 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:51:36,148 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:51:36,148 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:51:36,150 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:51:36,150 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 166 places, 148 transitions, 416 flow [2021-01-06 23:51:36,150 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 166 places, 148 transitions, 416 flow [2021-01-06 23:51:36,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 166 places, 148 transitions, 416 flow [2021-01-06 23:51:36,173 INFO L129 PetriNetUnfolder]: 9/178 cut-off events. [2021-01-06 23:51:36,174 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2021-01-06 23:51:36,175 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 23:51:36,181 INFO L116 LiptonReduction]: Number of co-enabled transitions 2940 [2021-01-06 23:51:38,155 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2021-01-06 23:51:39,354 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-01-06 23:51:40,793 WARN L197 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2021-01-06 23:51:41,009 WARN L197 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-01-06 23:51:41,411 WARN L197 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2021-01-06 23:51:41,584 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-01-06 23:51:41,589 INFO L131 LiptonReduction]: Checked pairs total: 5258 [2021-01-06 23:51:41,589 INFO L133 LiptonReduction]: Total number of compositions: 135 [2021-01-06 23:51:41,589 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 45 transitions, 210 flow [2021-01-06 23:51:43,304 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 18584 states. [2021-01-06 23:51:43,305 INFO L276 IsEmpty]: Start isEmpty. Operand 18584 states. [2021-01-06 23:51:43,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-01-06 23:51:43,305 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:43,305 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-01-06 23:51:43,305 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 23:51:43,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:43,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1408665, now seen corresponding path program 1 times [2021-01-06 23:51:43,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:43,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613577329] [2021-01-06 23:51:43,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:43,329 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 23:51:43,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613577329] [2021-01-06 23:51:43,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:51:43,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-01-06 23:51:43,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996229110] [2021-01-06 23:51:43,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:51:43,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:43,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:51:43,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:51:43,331 INFO L87 Difference]: Start difference. First operand 18584 states. Second operand 3 states. [2021-01-06 23:51:43,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:43,509 INFO L93 Difference]: Finished difference Result 17885 states and 92755 transitions. [2021-01-06 23:51:43,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:51:43,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-01-06 23:51:43,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:43,573 INFO L225 Difference]: With dead ends: 17885 [2021-01-06 23:51:43,573 INFO L226 Difference]: Without dead ends: 16791 [2021-01-06 23:51:43,574 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 23:51:44,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16791 states. [2021-01-06 23:51:44,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16791 to 16791. [2021-01-06 23:51:44,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16791 states. [2021-01-06 23:51:44,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16791 states to 16791 states and 86558 transitions. [2021-01-06 23:51:44,773 INFO L78 Accepts]: Start accepts. Automaton has 16791 states and 86558 transitions. Word has length 3 [2021-01-06 23:51:44,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:44,773 INFO L481 AbstractCegarLoop]: Abstraction has 16791 states and 86558 transitions. [2021-01-06 23:51:44,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:51:44,773 INFO L276 IsEmpty]: Start isEmpty. Operand 16791 states and 86558 transitions. [2021-01-06 23:51:44,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:51:44,774 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:44,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:44,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-01-06 23:51:44,774 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 23:51:44,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:44,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1428828959, now seen corresponding path program 1 times [2021-01-06 23:51:44,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:44,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398815784] [2021-01-06 23:51:44,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:44,817 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 23:51:44,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398815784] [2021-01-06 23:51:44,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:51:44,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:51:44,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647733019] [2021-01-06 23:51:44,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:51:44,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:44,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:51:44,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:51:44,819 INFO L87 Difference]: Start difference. First operand 16791 states and 86558 transitions. Second operand 5 states. [2021-01-06 23:51:45,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:45,144 INFO L93 Difference]: Finished difference Result 30985 states and 150574 transitions. [2021-01-06 23:51:45,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:51:45,144 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2021-01-06 23:51:45,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:45,257 INFO L225 Difference]: With dead ends: 30985 [2021-01-06 23:51:45,257 INFO L226 Difference]: Without dead ends: 30977 [2021-01-06 23:51:45,257 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:51:46,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30977 states. [2021-01-06 23:51:46,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30977 to 19868. [2021-01-06 23:51:46,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19868 states. [2021-01-06 23:51:47,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19868 states to 19868 states and 103363 transitions. [2021-01-06 23:51:47,056 INFO L78 Accepts]: Start accepts. Automaton has 19868 states and 103363 transitions. Word has length 9 [2021-01-06 23:51:47,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:47,056 INFO L481 AbstractCegarLoop]: Abstraction has 19868 states and 103363 transitions. [2021-01-06 23:51:47,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:51:47,056 INFO L276 IsEmpty]: Start isEmpty. Operand 19868 states and 103363 transitions. [2021-01-06 23:51:47,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 23:51:47,056 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:47,057 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:47,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-01-06 23:51:47,057 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 23:51:47,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:47,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1436873082, now seen corresponding path program 1 times [2021-01-06 23:51:47,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:47,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72067667] [2021-01-06 23:51:47,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:47,114 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 23:51:47,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72067667] [2021-01-06 23:51:47,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652226933] [2021-01-06 23:51:47,114 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 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 23:51:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:47,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2021-01-06 23:51:47,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:47,266 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 23:51:47,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:47,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2021-01-06 23:51:47,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270805273] [2021-01-06 23:51:47,267 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:51:47,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:47,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:51:47,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-01-06 23:51:47,268 INFO L87 Difference]: Start difference. First operand 19868 states and 103363 transitions. Second operand 5 states. [2021-01-06 23:51:48,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:48,129 INFO L93 Difference]: Finished difference Result 36296 states and 178836 transitions. [2021-01-06 23:51:48,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:51:48,130 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-01-06 23:51:48,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:48,412 INFO L225 Difference]: With dead ends: 36296 [2021-01-06 23:51:48,412 INFO L226 Difference]: Without dead ends: 36280 [2021-01-06 23:51:48,412 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-01-06 23:51:49,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36280 states. [2021-01-06 23:51:50,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36280 to 23806. [2021-01-06 23:51:50,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23806 states. [2021-01-06 23:51:51,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23806 states to 23806 states and 125455 transitions. [2021-01-06 23:51:51,020 INFO L78 Accepts]: Start accepts. Automaton has 23806 states and 125455 transitions. Word has length 13 [2021-01-06 23:51:51,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:51,020 INFO L481 AbstractCegarLoop]: Abstraction has 23806 states and 125455 transitions. [2021-01-06 23:51:51,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:51:51,020 INFO L276 IsEmpty]: Start isEmpty. Operand 23806 states and 125455 transitions. [2021-01-06 23:51:51,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:51:51,021 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:51,021 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:51,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2021-01-06 23:51:51,235 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 23:51:51,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:51,236 INFO L82 PathProgramCache]: Analyzing trace with hash -121904858, now seen corresponding path program 1 times [2021-01-06 23:51:51,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:51,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924475861] [2021-01-06 23:51:51,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:51,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:51,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-01-06 23:51:51,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924475861] [2021-01-06 23:51:51,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041575369] [2021-01-06 23:51:51,311 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 23:51:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:51,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 13 conjunts are in the unsatisfiable core [2021-01-06 23:51:51,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:51,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-01-06 23:51:51,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:51:51,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-01-06 23:51:51,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637033590] [2021-01-06 23:51:51,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-01-06 23:51:51,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:51,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-01-06 23:51:51,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-01-06 23:51:51,498 INFO L87 Difference]: Start difference. First operand 23806 states and 125455 transitions. Second operand 12 states. [2021-01-06 23:51:52,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:52,654 INFO L93 Difference]: Finished difference Result 56720 states and 262685 transitions. [2021-01-06 23:51:52,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:51:52,655 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2021-01-06 23:51:52,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:52,911 INFO L225 Difference]: With dead ends: 56720 [2021-01-06 23:51:52,912 INFO L226 Difference]: Without dead ends: 56704 [2021-01-06 23:51:52,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2021-01-06 23:51:53,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56704 states. [2021-01-06 23:51:54,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56704 to 23629. [2021-01-06 23:51:54,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23629 states. [2021-01-06 23:51:55,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23629 states to 23629 states and 124418 transitions. [2021-01-06 23:51:55,027 INFO L78 Accepts]: Start accepts. Automaton has 23629 states and 124418 transitions. Word has length 15 [2021-01-06 23:51:55,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:55,027 INFO L481 AbstractCegarLoop]: Abstraction has 23629 states and 124418 transitions. [2021-01-06 23:51:55,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-01-06 23:51:55,028 INFO L276 IsEmpty]: Start isEmpty. Operand 23629 states and 124418 transitions. [2021-01-06 23:51:55,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:51:55,028 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:55,028 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:55,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78,51 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:51:55,233 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 23:51:55,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:55,233 INFO L82 PathProgramCache]: Analyzing trace with hash 2144442278, now seen corresponding path program 2 times [2021-01-06 23:51:55,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:55,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906597206] [2021-01-06 23:51:55,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:55,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:55,304 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 23:51:55,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906597206] [2021-01-06 23:51:55,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:51:55,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 23:51:55,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793354955] [2021-01-06 23:51:55,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:51:55,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:55,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:51:55,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:51:55,306 INFO L87 Difference]: Start difference. First operand 23629 states and 124418 transitions. Second operand 7 states. [2021-01-06 23:51:56,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:56,462 INFO L93 Difference]: Finished difference Result 58078 states and 269185 transitions. [2021-01-06 23:51:56,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:51:56,462 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2021-01-06 23:51:56,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:51:56,698 INFO L225 Difference]: With dead ends: 58078 [2021-01-06 23:51:56,699 INFO L226 Difference]: Without dead ends: 58061 [2021-01-06 23:51:56,699 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-01-06 23:51:57,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58061 states. [2021-01-06 23:51:58,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58061 to 23109. [2021-01-06 23:51:58,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23109 states. [2021-01-06 23:51:59,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23109 states to 23109 states and 121651 transitions. [2021-01-06 23:51:59,028 INFO L78 Accepts]: Start accepts. Automaton has 23109 states and 121651 transitions. Word has length 15 [2021-01-06 23:51:59,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:51:59,028 INFO L481 AbstractCegarLoop]: Abstraction has 23109 states and 121651 transitions. [2021-01-06 23:51:59,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:51:59,028 INFO L276 IsEmpty]: Start isEmpty. Operand 23109 states and 121651 transitions. [2021-01-06 23:51:59,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-06 23:51:59,029 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:51:59,029 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:51:59,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-01-06 23:51:59,029 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 23:51:59,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:51:59,029 INFO L82 PathProgramCache]: Analyzing trace with hash 631312444, now seen corresponding path program 1 times [2021-01-06 23:51:59,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:51:59,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520487567] [2021-01-06 23:51:59,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:51:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:59,093 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 23:51:59,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520487567] [2021-01-06 23:51:59,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414938490] [2021-01-06 23:51:59,094 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 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 23:51:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:51:59,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjunts are in the unsatisfiable core [2021-01-06 23:51:59,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:51:59,529 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 23:51:59,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:51:59,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 10 [2021-01-06 23:51:59,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956016384] [2021-01-06 23:51:59,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:51:59,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:51:59,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:51:59,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-01-06 23:51:59,530 INFO L87 Difference]: Start difference. First operand 23109 states and 121651 transitions. Second operand 5 states. [2021-01-06 23:51:59,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:51:59,958 INFO L93 Difference]: Finished difference Result 41885 states and 209629 transitions. [2021-01-06 23:51:59,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:51:59,959 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2021-01-06 23:51:59,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:52:00,107 INFO L225 Difference]: With dead ends: 41885 [2021-01-06 23:52:00,108 INFO L226 Difference]: Without dead ends: 41856 [2021-01-06 23:52:00,108 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-01-06 23:52:01,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41856 states. [2021-01-06 23:52:02,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41856 to 28237. [2021-01-06 23:52:02,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28237 states. [2021-01-06 23:52:02,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28237 states to 28237 states and 150261 transitions. [2021-01-06 23:52:02,232 INFO L78 Accepts]: Start accepts. Automaton has 28237 states and 150261 transitions. Word has length 17 [2021-01-06 23:52:02,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:52:02,232 INFO L481 AbstractCegarLoop]: Abstraction has 28237 states and 150261 transitions. [2021-01-06 23:52:02,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:52:02,232 INFO L276 IsEmpty]: Start isEmpty. Operand 28237 states and 150261 transitions. [2021-01-06 23:52:02,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:52:02,233 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:52:02,233 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:52:02,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,52 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:52:02,434 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 23:52:02,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:52:02,435 INFO L82 PathProgramCache]: Analyzing trace with hash -602434852, now seen corresponding path program 1 times [2021-01-06 23:52:02,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:52:02,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283571204] [2021-01-06 23:52:02,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:52:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:02,526 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 23:52:02,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283571204] [2021-01-06 23:52:02,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317123997] [2021-01-06 23:52:02,527 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 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 23:52:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:02,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 12 conjunts are in the unsatisfiable core [2021-01-06 23:52:02,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:52:03,227 WARN L197 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2021-01-06 23:52:03,256 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 23:52:03,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:52:03,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2021-01-06 23:52:03,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497007755] [2021-01-06 23:52:03,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-01-06 23:52:03,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:52:03,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-01-06 23:52:03,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2021-01-06 23:52:03,259 INFO L87 Difference]: Start difference. First operand 28237 states and 150261 transitions. Second operand 20 states. [2021-01-06 23:52:05,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:52:05,982 INFO L93 Difference]: Finished difference Result 105306 states and 486919 transitions. [2021-01-06 23:52:05,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-01-06 23:52:05,983 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 19 [2021-01-06 23:52:05,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:52:06,862 INFO L225 Difference]: With dead ends: 105306 [2021-01-06 23:52:06,862 INFO L226 Difference]: Without dead ends: 105282 [2021-01-06 23:52:06,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=500, Invalid=1756, Unknown=0, NotChecked=0, Total=2256 [2021-01-06 23:52:08,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105282 states. [2021-01-06 23:52:09,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105282 to 29810. [2021-01-06 23:52:09,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29810 states. [2021-01-06 23:52:10,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29810 states to 29810 states and 159322 transitions. [2021-01-06 23:52:10,298 INFO L78 Accepts]: Start accepts. Automaton has 29810 states and 159322 transitions. Word has length 19 [2021-01-06 23:52:10,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:52:10,298 INFO L481 AbstractCegarLoop]: Abstraction has 29810 states and 159322 transitions. [2021-01-06 23:52:10,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-01-06 23:52:10,298 INFO L276 IsEmpty]: Start isEmpty. Operand 29810 states and 159322 transitions. [2021-01-06 23:52:10,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:52:10,299 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:52:10,299 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:52:10,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,53 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:52:10,513 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 23:52:10,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:52:10,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1111858202, now seen corresponding path program 1 times [2021-01-06 23:52:10,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:52:10,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426575018] [2021-01-06 23:52:10,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:52:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:10,613 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 23:52:10,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426575018] [2021-01-06 23:52:10,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784998079] [2021-01-06 23:52:10,614 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 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 23:52:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:10,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 12 conjunts are in the unsatisfiable core [2021-01-06 23:52:10,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:52:10,872 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 23:52:10,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:52:10,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2021-01-06 23:52:10,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407644659] [2021-01-06 23:52:10,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-01-06 23:52:10,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:52:10,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-01-06 23:52:10,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2021-01-06 23:52:10,874 INFO L87 Difference]: Start difference. First operand 29810 states and 159322 transitions. Second operand 20 states. [2021-01-06 23:52:12,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:52:12,779 INFO L93 Difference]: Finished difference Result 82351 states and 385147 transitions. [2021-01-06 23:52:12,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-06 23:52:12,780 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 19 [2021-01-06 23:52:12,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:52:13,105 INFO L225 Difference]: With dead ends: 82351 [2021-01-06 23:52:13,105 INFO L226 Difference]: Without dead ends: 82326 [2021-01-06 23:52:13,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=282, Invalid=908, Unknown=0, NotChecked=0, Total=1190 [2021-01-06 23:52:14,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82326 states. [2021-01-06 23:52:16,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82326 to 30333. [2021-01-06 23:52:16,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30333 states. [2021-01-06 23:52:16,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30333 states to 30333 states and 162102 transitions. [2021-01-06 23:52:16,181 INFO L78 Accepts]: Start accepts. Automaton has 30333 states and 162102 transitions. Word has length 19 [2021-01-06 23:52:16,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:52:16,181 INFO L481 AbstractCegarLoop]: Abstraction has 30333 states and 162102 transitions. [2021-01-06 23:52:16,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-01-06 23:52:16,181 INFO L276 IsEmpty]: Start isEmpty. Operand 30333 states and 162102 transitions. [2021-01-06 23:52:16,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:52:16,182 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:52:16,182 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:52:16,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable82 [2021-01-06 23:52:16,383 INFO L429 AbstractCegarLoop]: === Iteration 9 === [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 23:52:16,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:52:16,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1100874716, now seen corresponding path program 2 times [2021-01-06 23:52:16,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:52:16,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3924247] [2021-01-06 23:52:16,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:52:16,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:16,479 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 23:52:16,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3924247] [2021-01-06 23:52:16,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175518853] [2021-01-06 23:52:16,479 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 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 23:52:16,572 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:52:16,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:52:16,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2021-01-06 23:52:16,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:52:16,692 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 23:52:16,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:52:16,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2021-01-06 23:52:16,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250614033] [2021-01-06 23:52:16,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:52:16,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:52:16,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:52:16,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2021-01-06 23:52:16,694 INFO L87 Difference]: Start difference. First operand 30333 states and 162102 transitions. Second operand 7 states. [2021-01-06 23:52:18,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:52:18,002 INFO L93 Difference]: Finished difference Result 72872 states and 346972 transitions. [2021-01-06 23:52:18,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:52:18,003 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2021-01-06 23:52:18,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:52:18,282 INFO L225 Difference]: With dead ends: 72872 [2021-01-06 23:52:18,283 INFO L226 Difference]: Without dead ends: 72839 [2021-01-06 23:52:18,283 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 23:52:19,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72839 states. [2021-01-06 23:52:21,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72839 to 30817. [2021-01-06 23:52:21,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30817 states. [2021-01-06 23:52:21,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30817 states to 30817 states and 164781 transitions. [2021-01-06 23:52:21,262 INFO L78 Accepts]: Start accepts. Automaton has 30817 states and 164781 transitions. Word has length 19 [2021-01-06 23:52:21,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:52:21,262 INFO L481 AbstractCegarLoop]: Abstraction has 30817 states and 164781 transitions. [2021-01-06 23:52:21,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:52:21,262 INFO L276 IsEmpty]: Start isEmpty. Operand 30817 states and 164781 transitions. [2021-01-06 23:52:21,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:52:21,263 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:52:21,263 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:52:21,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,55 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:52:21,464 INFO L429 AbstractCegarLoop]: === Iteration 10 === [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 23:52:21,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:52:21,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1100906522, now seen corresponding path program 2 times [2021-01-06 23:52:21,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:52:21,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186289641] [2021-01-06 23:52:21,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:52:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:21,561 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 23:52:21,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186289641] [2021-01-06 23:52:21,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373125276] [2021-01-06 23:52:21,562 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 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 23:52:21,668 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-06 23:52:21,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:52:21,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2021-01-06 23:52:21,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:52:21,789 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 23:52:21,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-06 23:52:21,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2021-01-06 23:52:21,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890626010] [2021-01-06 23:52:21,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 23:52:21,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:52:21,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 23:52:21,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2021-01-06 23:52:21,791 INFO L87 Difference]: Start difference. First operand 30817 states and 164781 transitions. Second operand 7 states. [2021-01-06 23:52:23,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:52:23,087 INFO L93 Difference]: Finished difference Result 72235 states and 343632 transitions. [2021-01-06 23:52:23,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-06 23:52:23,088 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2021-01-06 23:52:23,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:52:23,368 INFO L225 Difference]: With dead ends: 72235 [2021-01-06 23:52:23,368 INFO L226 Difference]: Without dead ends: 72202 [2021-01-06 23:52:23,368 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 23:52:24,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72202 states. [2021-01-06 23:52:26,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72202 to 30917. [2021-01-06 23:52:26,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30917 states. [2021-01-06 23:52:26,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30917 states to 30917 states and 165494 transitions. [2021-01-06 23:52:26,311 INFO L78 Accepts]: Start accepts. Automaton has 30917 states and 165494 transitions. Word has length 19 [2021-01-06 23:52:26,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:52:26,311 INFO L481 AbstractCegarLoop]: Abstraction has 30917 states and 165494 transitions. [2021-01-06 23:52:26,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 23:52:26,311 INFO L276 IsEmpty]: Start isEmpty. Operand 30917 states and 165494 transitions. [2021-01-06 23:52:26,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-01-06 23:52:26,312 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:52:26,312 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:52:26,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:52:26,513 INFO L429 AbstractCegarLoop]: === Iteration 11 === [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 23:52:26,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:52:26,514 INFO L82 PathProgramCache]: Analyzing trace with hash -106910664, now seen corresponding path program 3 times [2021-01-06 23:52:26,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:52:26,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177710284] [2021-01-06 23:52:26,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:52:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:26,602 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 23:52:26,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177710284] [2021-01-06 23:52:26,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002692423] [2021-01-06 23:52:26,603 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 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 23:52:26,700 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-01-06 23:52:26,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 23:52:26,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 13 conjunts are in the unsatisfiable core [2021-01-06 23:52:26,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:52:26,829 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 23:52:26,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:52:26,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 14 [2021-01-06 23:52:26,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015025381] [2021-01-06 23:52:26,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-01-06 23:52:26,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:52:26,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-01-06 23:52:26,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-01-06 23:52:26,831 INFO L87 Difference]: Start difference. First operand 30917 states and 165494 transitions. Second operand 16 states. [2021-01-06 23:52:29,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:52:29,564 INFO L93 Difference]: Finished difference Result 98879 states and 456975 transitions. [2021-01-06 23:52:29,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-06 23:52:29,565 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 19 [2021-01-06 23:52:29,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:52:30,002 INFO L225 Difference]: With dead ends: 98879 [2021-01-06 23:52:30,002 INFO L226 Difference]: Without dead ends: 98821 [2021-01-06 23:52:30,003 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=336, Invalid=1070, Unknown=0, NotChecked=0, Total=1406 [2021-01-06 23:52:31,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98821 states. [2021-01-06 23:52:33,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98821 to 29094. [2021-01-06 23:52:33,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29094 states. [2021-01-06 23:52:33,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29094 states to 29094 states and 154883 transitions. [2021-01-06 23:52:33,291 INFO L78 Accepts]: Start accepts. Automaton has 29094 states and 154883 transitions. Word has length 19 [2021-01-06 23:52:33,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:52:33,292 INFO L481 AbstractCegarLoop]: Abstraction has 29094 states and 154883 transitions. [2021-01-06 23:52:33,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-01-06 23:52:33,292 INFO L276 IsEmpty]: Start isEmpty. Operand 29094 states and 154883 transitions. [2021-01-06 23:52:33,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-01-06 23:52:33,293 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:52:33,293 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 23:52:33,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,57 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 23:52:33,494 INFO L429 AbstractCegarLoop]: === Iteration 12 === [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 23:52:33,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:52:33,494 INFO L82 PathProgramCache]: Analyzing trace with hash 891680442, now seen corresponding path program 1 times [2021-01-06 23:52:33,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:52:33,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463467932] [2021-01-06 23:52:33,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:52:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:33,612 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 23:52:33,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463467932] [2021-01-06 23:52:33,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094908535] [2021-01-06 23:52:33,613 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 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 23:52:33,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:52:33,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 23:52:33,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 23:52:33,859 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 23:52:33,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 23:52:33,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-01-06 23:52:33,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045781913] [2021-01-06 23:52:33,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-01-06 23:52:33,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:52:33,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-01-06 23:52:33,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2021-01-06 23:52:33,861 INFO L87 Difference]: Start difference. First operand 29094 states and 154883 transitions. Second operand 16 states. [2021-01-06 23:52:36,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:52:36,718 INFO L93 Difference]: Finished difference Result 100731 states and 448596 transitions. [2021-01-06 23:52:36,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-06 23:52:36,719 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2021-01-06 23:52:36,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:52:37,598 INFO L225 Difference]: With dead ends: 100731 [2021-01-06 23:52:37,598 INFO L226 Difference]: Without dead ends: 100715 [2021-01-06 23:52:37,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=397, Invalid=1085, Unknown=0, NotChecked=0, Total=1482