/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 14:27:28,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 14:27:28,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 14:27:28,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 14:27:28,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 14:27:28,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 14:27:28,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 14:27:28,529 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 14:27:28,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 14:27:28,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 14:27:28,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 14:27:28,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 14:27:28,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 14:27:28,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 14:27:28,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 14:27:28,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 14:27:28,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 14:27:28,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 14:27:28,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 14:27:28,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 14:27:28,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 14:27:28,578 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 14:27:28,579 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 14:27:28,580 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 14:27:28,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 14:27:28,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 14:27:28,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 14:27:28,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 14:27:28,603 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 14:27:28,604 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 14:27:28,605 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 14:27:28,605 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 14:27:28,606 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 14:27:28,606 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 14:27:28,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 14:27:28,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 14:27:28,610 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-11-09 14:27:28,667 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 14:27:28,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 14:27:28,673 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 14:27:28,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 14:27:28,674 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 14:27:28,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 14:27:28,674 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 14:27:28,675 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 14:27:28,675 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 14:27:28,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 14:27:28,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 14:27:28,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 14:27:28,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 14:27:28,678 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 14:27:28,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 14:27:28,678 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 14:27:28,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 14:27:28,678 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 14:27:28,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 14:27:28,679 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 14:27:28,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 14:27:28,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 14:27:28,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 14:27:28,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 14:27:28,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 14:27:28,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 14:27:28,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 14:27:28,681 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 14:27:28,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 14:27:29,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 14:27:29,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 14:27:29,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 14:27:29,188 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 14:27:29,189 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 14:27:29,190 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-2.i [2020-11-09 14:27:29,285 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93f0aef31/e53d97416ba64d70b42d5ba4c231231f/FLAG9f37e1811 [2020-11-09 14:27:30,191 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 14:27:30,192 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-2.i [2020-11-09 14:27:30,210 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93f0aef31/e53d97416ba64d70b42d5ba4c231231f/FLAG9f37e1811 [2020-11-09 14:27:30,361 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93f0aef31/e53d97416ba64d70b42d5ba4c231231f [2020-11-09 14:27:30,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 14:27:30,372 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 14:27:30,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 14:27:30,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 14:27:30,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 14:27:30,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:27:30" (1/1) ... [2020-11-09 14:27:30,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f531488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:30, skipping insertion in model container [2020-11-09 14:27:30,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:27:30" (1/1) ... [2020-11-09 14:27:30,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 14:27:30,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 14:27:30,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 14:27:30,936 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 14:27:30,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 14:27:31,121 INFO L208 MainTranslator]: Completed translation [2020-11-09 14:27:31,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:31 WrapperNode [2020-11-09 14:27:31,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 14:27:31,125 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 14:27:31,125 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 14:27:31,125 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 14:27:31,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:31" (1/1) ... [2020-11-09 14:27:31,187 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:31" (1/1) ... [2020-11-09 14:27:31,217 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 14:27:31,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 14:27:31,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 14:27:31,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 14:27:31,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:31" (1/1) ... [2020-11-09 14:27:31,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:31" (1/1) ... [2020-11-09 14:27:31,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:31" (1/1) ... [2020-11-09 14:27:31,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:31" (1/1) ... [2020-11-09 14:27:31,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:31" (1/1) ... [2020-11-09 14:27:31,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:31" (1/1) ... [2020-11-09 14:27:31,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:31" (1/1) ... [2020-11-09 14:27:31,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 14:27:31,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 14:27:31,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 14:27:31,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 14:27:31,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 14:27:31,340 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-11-09 14:27:31,341 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-11-09 14:27:31,341 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-11-09 14:27:31,341 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-11-09 14:27:31,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 14:27:31,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 14:27:31,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 14:27:31,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 14:27:31,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 14:27:31,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 14:27:31,344 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 14:27:31,963 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 14:27:31,963 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-11-09 14:27:31,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:27:31 BoogieIcfgContainer [2020-11-09 14:27:31,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 14:27:31,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 14:27:31,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 14:27:31,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 14:27:31,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:27:30" (1/3) ... [2020-11-09 14:27:31,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@238cfc92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:27:31, skipping insertion in model container [2020-11-09 14:27:31,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:27:31" (2/3) ... [2020-11-09 14:27:31,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@238cfc92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:27:31, skipping insertion in model container [2020-11-09 14:27:31,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:27:31" (3/3) ... [2020-11-09 14:27:31,977 INFO L111 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-2.i [2020-11-09 14:27:31,997 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 14:27:31,997 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 14:27:32,001 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 14:27:32,003 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 14:27:32,054 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,055 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,056 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,056 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,056 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,056 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,056 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,057 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,057 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,057 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,057 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,058 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,058 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,058 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,059 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,059 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,059 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,059 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,059 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,059 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,059 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,060 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,060 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,062 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,063 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,063 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,063 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,063 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,063 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,064 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,064 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,065 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,065 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,067 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,067 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,067 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,067 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,067 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,068 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,068 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,070 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,070 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,073 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,073 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,073 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,073 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,074 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,081 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,082 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,082 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,082 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,082 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,083 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,083 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,083 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:32,087 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 14:27:32,101 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 14:27:32,140 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 14:27:32,140 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 14:27:32,141 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 14:27:32,141 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 14:27:32,141 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 14:27:32,141 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 14:27:32,141 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 14:27:32,141 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 14:27:32,158 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 14:27:32,159 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 67 transitions, 144 flow [2020-11-09 14:27:32,163 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 67 transitions, 144 flow [2020-11-09 14:27:32,166 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 67 transitions, 144 flow [2020-11-09 14:27:32,220 INFO L129 PetriNetUnfolder]: 5/77 cut-off events. [2020-11-09 14:27:32,221 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 14:27:32,227 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 77 events. 5/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 109 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 57. Up to 4 conditions per place. [2020-11-09 14:27:32,230 INFO L116 LiptonReduction]: Number of co-enabled transitions 832 [2020-11-09 14:27:33,062 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-11-09 14:27:35,034 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-11-09 14:27:35,137 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-11-09 14:27:35,752 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-11-09 14:27:35,931 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-11-09 14:27:36,204 WARN L194 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2020-11-09 14:27:36,486 WARN L194 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 57 [2020-11-09 14:27:37,396 WARN L194 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2020-11-09 14:27:37,709 WARN L194 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2020-11-09 14:27:38,132 WARN L194 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2020-11-09 14:27:38,451 WARN L194 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-11-09 14:27:38,627 WARN L194 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-09 14:27:38,781 WARN L194 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-09 14:27:38,970 WARN L194 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-11-09 14:27:39,163 WARN L194 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-09 14:27:39,166 INFO L131 LiptonReduction]: Checked pairs total: 793 [2020-11-09 14:27:39,166 INFO L133 LiptonReduction]: Total number of compositions: 69 [2020-11-09 14:27:39,176 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 12 transitions, 34 flow [2020-11-09 14:27:39,185 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2020-11-09 14:27:39,186 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-11-09 14:27:39,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-09 14:27:39,191 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:27:39,192 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-09 14:27:39,193 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 14:27:39,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:27:39,199 INFO L82 PathProgramCache]: Analyzing trace with hash 270931, now seen corresponding path program 1 times [2020-11-09 14:27:39,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:27:39,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788959413] [2020-11-09 14:27:39,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:27:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:27:39,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:27:39,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788959413] [2020-11-09 14:27:39,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:27:39,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 14:27:39,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198950334] [2020-11-09 14:27:39,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 14:27:39,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:27:39,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 14:27:39,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 14:27:39,448 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2020-11-09 14:27:39,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:27:39,505 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2020-11-09 14:27:39,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 14:27:39,507 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-09 14:27:39,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:27:39,518 INFO L225 Difference]: With dead ends: 35 [2020-11-09 14:27:39,518 INFO L226 Difference]: Without dead ends: 31 [2020-11-09 14:27:39,520 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 [2020-11-09 14:27:39,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-09 14:27:39,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-11-09 14:27:39,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-09 14:27:39,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2020-11-09 14:27:39,562 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3 [2020-11-09 14:27:39,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:27:39,563 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2020-11-09 14:27:39,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 14:27:39,563 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2020-11-09 14:27:39,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-09 14:27:39,563 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:27:39,564 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:27:39,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 14:27:39,564 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 14:27:39,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:27:39,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1075906219, now seen corresponding path program 1 times [2020-11-09 14:27:39,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:27:39,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591614762] [2020-11-09 14:27:39,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:27:39,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:27:39,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:27:39,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591614762] [2020-11-09 14:27:39,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:27:39,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 14:27:39,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961342022] [2020-11-09 14:27:39,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 14:27:39,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:27:39,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 14:27:39,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-09 14:27:39,738 INFO L87 Difference]: Start difference. First operand 31 states and 51 transitions. Second operand 4 states. [2020-11-09 14:27:39,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:27:39,773 INFO L93 Difference]: Finished difference Result 26 states and 42 transitions. [2020-11-09 14:27:39,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 14:27:39,774 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-09 14:27:39,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:27:39,775 INFO L225 Difference]: With dead ends: 26 [2020-11-09 14:27:39,775 INFO L226 Difference]: Without dead ends: 24 [2020-11-09 14:27:39,776 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 [2020-11-09 14:27:39,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-11-09 14:27:39,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-11-09 14:27:39,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-11-09 14:27:39,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 39 transitions. [2020-11-09 14:27:39,781 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 39 transitions. Word has length 7 [2020-11-09 14:27:39,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:27:39,782 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 39 transitions. [2020-11-09 14:27:39,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 14:27:39,782 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2020-11-09 14:27:39,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 14:27:39,783 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:27:39,783 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-11-09 14:27:39,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 14:27:39,783 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 14:27:39,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:27:39,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1006649777, now seen corresponding path program 1 times [2020-11-09 14:27:39,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:27:39,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329949762] [2020-11-09 14:27:39,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:27:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 14:27:39,814 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 14:27:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 14:27:39,836 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 14:27:39,863 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-09 14:27:39,864 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-09 14:27:39,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 14:27:39,865 WARN L386 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-11-09 14:27:39,865 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-11-09 14:27:39,890 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,890 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,891 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,891 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,891 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,891 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,891 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,891 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,892 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,892 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,892 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,892 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,892 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,892 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,893 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,893 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,893 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,893 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,893 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,894 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,894 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,894 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,894 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,894 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,894 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,894 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,895 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,895 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,896 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,896 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,896 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,896 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,896 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,897 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,897 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,897 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,897 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,898 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,898 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,898 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,898 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,898 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,898 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,899 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,899 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,899 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,899 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,899 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,900 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,900 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,900 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,900 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,901 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,901 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,901 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,901 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,902 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,902 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,902 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,902 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,902 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,902 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,903 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,903 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,903 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,903 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,903 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,904 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,904 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,904 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,904 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,904 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,905 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,905 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,905 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,905 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,905 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,905 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,906 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,906 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,906 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,906 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,907 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,907 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,907 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,908 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,908 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,908 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,908 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,915 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,915 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,915 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,915 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,916 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,918 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,919 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,919 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,922 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,922 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,922 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,922 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,922 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,923 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,923 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:39,925 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 14:27:39,925 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-09 14:27:39,926 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 14:27:39,927 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 14:27:39,927 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 14:27:39,927 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 14:27:39,927 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 14:27:39,927 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 14:27:39,927 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 14:27:39,927 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 14:27:39,930 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 14:27:39,930 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 88 transitions, 200 flow [2020-11-09 14:27:39,931 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 88 transitions, 200 flow [2020-11-09 14:27:39,931 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 88 transitions, 200 flow [2020-11-09 14:27:39,956 INFO L129 PetriNetUnfolder]: 6/98 cut-off events. [2020-11-09 14:27:39,956 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-11-09 14:27:39,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 98 events. 6/98 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 145 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 107. Up to 6 conditions per place. [2020-11-09 14:27:39,960 INFO L116 LiptonReduction]: Number of co-enabled transitions 1220 [2020-11-09 14:27:42,943 WARN L194 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-11-09 14:27:43,055 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 14:27:43,298 WARN L194 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-11-09 14:27:43,404 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 14:27:43,864 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-11-09 14:27:43,972 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-11-09 14:27:44,114 WARN L194 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-11-09 14:27:44,228 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-11-09 14:27:44,393 WARN L194 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-11-09 14:27:44,673 WARN L194 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2020-11-09 14:27:44,852 WARN L194 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-11-09 14:27:45,156 WARN L194 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-11-09 14:27:45,160 INFO L131 LiptonReduction]: Checked pairs total: 1551 [2020-11-09 14:27:45,160 INFO L133 LiptonReduction]: Total number of compositions: 86 [2020-11-09 14:27:45,161 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 66 flow [2020-11-09 14:27:45,175 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 224 states. [2020-11-09 14:27:45,175 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-11-09 14:27:45,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-09 14:27:45,176 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:27:45,176 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-09 14:27:45,176 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:27:45,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:27:45,177 INFO L82 PathProgramCache]: Analyzing trace with hash 464008, now seen corresponding path program 1 times [2020-11-09 14:27:45,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:27:45,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879489617] [2020-11-09 14:27:45,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:27:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:27:45,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:27:45,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879489617] [2020-11-09 14:27:45,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:27:45,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 14:27:45,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859417016] [2020-11-09 14:27:45,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 14:27:45,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:27:45,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 14:27:45,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 14:27:45,220 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 3 states. [2020-11-09 14:27:45,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:27:45,264 INFO L93 Difference]: Finished difference Result 185 states and 459 transitions. [2020-11-09 14:27:45,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 14:27:45,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-09 14:27:45,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:27:45,271 INFO L225 Difference]: With dead ends: 185 [2020-11-09 14:27:45,271 INFO L226 Difference]: Without dead ends: 171 [2020-11-09 14:27:45,271 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 [2020-11-09 14:27:45,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-11-09 14:27:45,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2020-11-09 14:27:45,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-11-09 14:27:45,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 418 transitions. [2020-11-09 14:27:45,306 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 418 transitions. Word has length 3 [2020-11-09 14:27:45,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:27:45,307 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 418 transitions. [2020-11-09 14:27:45,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 14:27:45,307 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 418 transitions. [2020-11-09 14:27:45,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 14:27:45,308 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:27:45,308 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:27:45,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 14:27:45,308 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:27:45,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:27:45,309 INFO L82 PathProgramCache]: Analyzing trace with hash 2038027130, now seen corresponding path program 1 times [2020-11-09 14:27:45,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:27:45,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521041405] [2020-11-09 14:27:45,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:27:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:27:45,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:27:45,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521041405] [2020-11-09 14:27:45,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:27:45,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 14:27:45,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914874422] [2020-11-09 14:27:45,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 14:27:45,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:27:45,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 14:27:45,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 14:27:45,393 INFO L87 Difference]: Start difference. First operand 171 states and 418 transitions. Second operand 5 states. [2020-11-09 14:27:45,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:27:45,495 INFO L93 Difference]: Finished difference Result 205 states and 460 transitions. [2020-11-09 14:27:45,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 14:27:45,497 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-09 14:27:45,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:27:45,500 INFO L225 Difference]: With dead ends: 205 [2020-11-09 14:27:45,500 INFO L226 Difference]: Without dead ends: 201 [2020-11-09 14:27:45,501 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 [2020-11-09 14:27:45,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-11-09 14:27:45,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 162. [2020-11-09 14:27:45,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-11-09 14:27:45,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 399 transitions. [2020-11-09 14:27:45,542 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 399 transitions. Word has length 9 [2020-11-09 14:27:45,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:27:45,543 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 399 transitions. [2020-11-09 14:27:45,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 14:27:45,543 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 399 transitions. [2020-11-09 14:27:45,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 14:27:45,544 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:27:45,545 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:27:45,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 14:27:45,545 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:27:45,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:27:45,546 INFO L82 PathProgramCache]: Analyzing trace with hash -460391635, now seen corresponding path program 1 times [2020-11-09 14:27:45,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:27:45,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656086253] [2020-11-09 14:27:45,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:27:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:27:45,654 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-09 14:27:45,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656086253] [2020-11-09 14:27:45,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:27:45,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 14:27:45,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751893718] [2020-11-09 14:27:45,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 14:27:45,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:27:45,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 14:27:45,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 14:27:45,657 INFO L87 Difference]: Start difference. First operand 162 states and 399 transitions. Second operand 5 states. [2020-11-09 14:27:45,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:27:45,744 INFO L93 Difference]: Finished difference Result 189 states and 423 transitions. [2020-11-09 14:27:45,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 14:27:45,745 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 14:27:45,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:27:45,748 INFO L225 Difference]: With dead ends: 189 [2020-11-09 14:27:45,748 INFO L226 Difference]: Without dead ends: 185 [2020-11-09 14:27:45,748 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 [2020-11-09 14:27:45,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-11-09 14:27:45,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 153. [2020-11-09 14:27:45,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-11-09 14:27:45,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 367 transitions. [2020-11-09 14:27:45,763 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 367 transitions. Word has length 13 [2020-11-09 14:27:45,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:27:45,764 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 367 transitions. [2020-11-09 14:27:45,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 14:27:45,764 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 367 transitions. [2020-11-09 14:27:45,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 14:27:45,765 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:27:45,766 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:27:45,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 14:27:45,766 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:27:45,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:27:45,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1390371680, now seen corresponding path program 1 times [2020-11-09 14:27:45,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:27:45,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692975884] [2020-11-09 14:27:45,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:27:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 14:27:45,787 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 14:27:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 14:27:45,802 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 14:27:45,811 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-09 14:27:45,811 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-09 14:27:45,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 14:27:45,812 WARN L386 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-11-09 14:27:45,813 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-11-09 14:27:45,825 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,826 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,826 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,826 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,826 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,826 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,826 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,827 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,827 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,827 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,827 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,827 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,828 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,828 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,828 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,828 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,828 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,828 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,829 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,829 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,829 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,829 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,829 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,829 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,830 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,830 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,830 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,830 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,830 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,831 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,831 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,831 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,831 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,831 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,831 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,831 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,832 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,832 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,832 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,832 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,832 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,833 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,833 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,833 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,833 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,834 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,834 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,834 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,834 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,834 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,834 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,835 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,835 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,835 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,835 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,835 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,835 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,836 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,836 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,836 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,836 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,836 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,836 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,837 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,837 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,837 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,837 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,838 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,838 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,838 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,838 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,838 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,838 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,839 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,839 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,839 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,839 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,839 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,839 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,840 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,840 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,840 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,840 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,840 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,840 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,841 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,841 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,841 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,841 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,841 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,842 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,842 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,842 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,842 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,842 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,842 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,843 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,843 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,843 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,843 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,843 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,843 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,844 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,844 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,844 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,844 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,844 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,845 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,845 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,845 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,845 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,845 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,845 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,846 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,846 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,846 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,846 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,846 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,847 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,847 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,847 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,851 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,851 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,852 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,853 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,853 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,853 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,853 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,855 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,856 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,856 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,856 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,856 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,858 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,858 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,858 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,858 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,858 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,860 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,860 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,860 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,860 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,860 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,861 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,861 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,861 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,862 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,863 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,863 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,863 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,863 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,863 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,863 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,864 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,866 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,866 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,867 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,867 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,867 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,867 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,867 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:45,869 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 14:27:45,869 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-09 14:27:45,870 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 14:27:45,870 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 14:27:45,870 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 14:27:45,870 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 14:27:45,870 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 14:27:45,870 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 14:27:45,870 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 14:27:45,871 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 14:27:45,873 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 14:27:45,873 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 115 places, 109 transitions, 260 flow [2020-11-09 14:27:45,873 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 115 places, 109 transitions, 260 flow [2020-11-09 14:27:45,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 115 places, 109 transitions, 260 flow [2020-11-09 14:27:45,898 INFO L129 PetriNetUnfolder]: 7/119 cut-off events. [2020-11-09 14:27:45,899 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-11-09 14:27:45,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 119 events. 7/119 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 186 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 133. Up to 8 conditions per place. [2020-11-09 14:27:45,904 INFO L116 LiptonReduction]: Number of co-enabled transitions 1668 [2020-11-09 14:27:49,117 WARN L194 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2020-11-09 14:27:49,366 WARN L194 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2020-11-09 14:27:50,246 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2020-11-09 14:27:50,427 WARN L194 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-11-09 14:27:50,799 WARN L194 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2020-11-09 14:27:50,966 WARN L194 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-11-09 14:27:51,250 WARN L194 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 90 [2020-11-09 14:27:51,386 WARN L194 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-09 14:27:51,665 WARN L194 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 93 [2020-11-09 14:27:51,821 WARN L194 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-09 14:27:51,828 INFO L131 LiptonReduction]: Checked pairs total: 2216 [2020-11-09 14:27:51,828 INFO L133 LiptonReduction]: Total number of compositions: 107 [2020-11-09 14:27:51,828 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 27 transitions, 96 flow [2020-11-09 14:27:51,864 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 683 states. [2020-11-09 14:27:51,864 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states. [2020-11-09 14:27:51,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-09 14:27:51,865 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:27:51,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-09 14:27:51,865 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:27:51,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:27:51,866 INFO L82 PathProgramCache]: Analyzing trace with hash 698655, now seen corresponding path program 1 times [2020-11-09 14:27:51,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:27:51,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90024918] [2020-11-09 14:27:51,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:27:51,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:27:51,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:27:51,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90024918] [2020-11-09 14:27:51,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:27:51,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 14:27:51,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280108388] [2020-11-09 14:27:51,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 14:27:51,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:27:51,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 14:27:51,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 14:27:51,911 INFO L87 Difference]: Start difference. First operand 683 states. Second operand 3 states. [2020-11-09 14:27:51,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:27:51,952 INFO L93 Difference]: Finished difference Result 600 states and 1886 transitions. [2020-11-09 14:27:51,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 14:27:51,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-09 14:27:51,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:27:51,960 INFO L225 Difference]: With dead ends: 600 [2020-11-09 14:27:51,960 INFO L226 Difference]: Without dead ends: 559 [2020-11-09 14:27:51,960 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 [2020-11-09 14:27:51,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-11-09 14:27:52,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2020-11-09 14:27:52,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-11-09 14:27:52,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 1737 transitions. [2020-11-09 14:27:52,007 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 1737 transitions. Word has length 3 [2020-11-09 14:27:52,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:27:52,007 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 1737 transitions. [2020-11-09 14:27:52,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 14:27:52,008 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 1737 transitions. [2020-11-09 14:27:52,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 14:27:52,008 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:27:52,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:27:52,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 14:27:52,009 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:27:52,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:27:52,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1614105147, now seen corresponding path program 1 times [2020-11-09 14:27:52,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:27:52,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226918232] [2020-11-09 14:27:52,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:27:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:27:52,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:27:52,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226918232] [2020-11-09 14:27:52,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:27:52,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 14:27:52,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449275616] [2020-11-09 14:27:52,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 14:27:52,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:27:52,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 14:27:52,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 14:27:52,090 INFO L87 Difference]: Start difference. First operand 559 states and 1737 transitions. Second operand 5 states. [2020-11-09 14:27:52,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:27:52,212 INFO L93 Difference]: Finished difference Result 817 states and 2317 transitions. [2020-11-09 14:27:52,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 14:27:52,213 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-09 14:27:52,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:27:52,221 INFO L225 Difference]: With dead ends: 817 [2020-11-09 14:27:52,221 INFO L226 Difference]: Without dead ends: 812 [2020-11-09 14:27:52,222 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 [2020-11-09 14:27:52,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2020-11-09 14:27:52,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 585. [2020-11-09 14:27:52,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-11-09 14:27:52,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 1832 transitions. [2020-11-09 14:27:52,258 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 1832 transitions. Word has length 9 [2020-11-09 14:27:52,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:27:52,258 INFO L481 AbstractCegarLoop]: Abstraction has 585 states and 1832 transitions. [2020-11-09 14:27:52,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 14:27:52,258 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 1832 transitions. [2020-11-09 14:27:52,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 14:27:52,260 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:27:52,260 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:27:52,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 14:27:52,260 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:27:52,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:27:52,261 INFO L82 PathProgramCache]: Analyzing trace with hash 222037333, now seen corresponding path program 1 times [2020-11-09 14:27:52,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:27:52,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690100314] [2020-11-09 14:27:52,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:27:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:27:52,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-09 14:27:52,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690100314] [2020-11-09 14:27:52,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:27:52,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 14:27:52,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613550260] [2020-11-09 14:27:52,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 14:27:52,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:27:52,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 14:27:52,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 14:27:52,322 INFO L87 Difference]: Start difference. First operand 585 states and 1832 transitions. Second operand 5 states. [2020-11-09 14:27:52,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:27:52,441 INFO L93 Difference]: Finished difference Result 843 states and 2406 transitions. [2020-11-09 14:27:52,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 14:27:52,442 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 14:27:52,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:27:52,449 INFO L225 Difference]: With dead ends: 843 [2020-11-09 14:27:52,450 INFO L226 Difference]: Without dead ends: 836 [2020-11-09 14:27:52,450 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 [2020-11-09 14:27:52,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-11-09 14:27:52,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 611. [2020-11-09 14:27:52,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-11-09 14:27:52,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1906 transitions. [2020-11-09 14:27:52,489 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1906 transitions. Word has length 13 [2020-11-09 14:27:52,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:27:52,490 INFO L481 AbstractCegarLoop]: Abstraction has 611 states and 1906 transitions. [2020-11-09 14:27:52,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 14:27:52,490 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1906 transitions. [2020-11-09 14:27:52,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 14:27:52,497 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:27:52,497 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:27:52,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-09 14:27:52,498 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:27:52,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:27:52,498 INFO L82 PathProgramCache]: Analyzing trace with hash -24425909, now seen corresponding path program 1 times [2020-11-09 14:27:52,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:27:52,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401864520] [2020-11-09 14:27:52,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:27:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:27:52,623 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:27:52,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401864520] [2020-11-09 14:27:52,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803071040] [2020-11-09 14:27:52,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:27:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:27:52,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-09 14:27:52,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:27:53,004 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:27:53,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:27:53,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2020-11-09 14:27:53,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979941447] [2020-11-09 14:27:53,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-09 14:27:53,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:27:53,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-09 14:27:53,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-11-09 14:27:53,007 INFO L87 Difference]: Start difference. First operand 611 states and 1906 transitions. Second operand 12 states. [2020-11-09 14:27:53,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:27:53,333 INFO L93 Difference]: Finished difference Result 1059 states and 2818 transitions. [2020-11-09 14:27:53,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:27:53,334 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2020-11-09 14:27:53,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:27:53,345 INFO L225 Difference]: With dead ends: 1059 [2020-11-09 14:27:53,345 INFO L226 Difference]: Without dead ends: 1052 [2020-11-09 14:27:53,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2020-11-09 14:27:53,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2020-11-09 14:27:53,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 591. [2020-11-09 14:27:53,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-11-09 14:27:53,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1840 transitions. [2020-11-09 14:27:53,386 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1840 transitions. Word has length 15 [2020-11-09 14:27:53,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:27:53,387 INFO L481 AbstractCegarLoop]: Abstraction has 591 states and 1840 transitions. [2020-11-09 14:27:53,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-09 14:27:53,387 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1840 transitions. [2020-11-09 14:27:53,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 14:27:53,390 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:27:53,390 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:27:53,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-11-09 14:27:53,605 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:27:53,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:27:53,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1370486663, now seen corresponding path program 2 times [2020-11-09 14:27:53,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:27:53,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336868985] [2020-11-09 14:27:53,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:27:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:27:53,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-09 14:27:53,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336868985] [2020-11-09 14:27:53,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:27:53,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 14:27:53,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023633119] [2020-11-09 14:27:53,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 14:27:53,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:27:53,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 14:27:53,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-09 14:27:53,746 INFO L87 Difference]: Start difference. First operand 591 states and 1840 transitions. Second operand 7 states. [2020-11-09 14:27:54,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:27:54,056 INFO L93 Difference]: Finished difference Result 1053 states and 2807 transitions. [2020-11-09 14:27:54,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:27:54,057 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-11-09 14:27:54,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:27:54,065 INFO L225 Difference]: With dead ends: 1053 [2020-11-09 14:27:54,065 INFO L226 Difference]: Without dead ends: 1045 [2020-11-09 14:27:54,066 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 [2020-11-09 14:27:54,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2020-11-09 14:27:54,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 536. [2020-11-09 14:27:54,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2020-11-09 14:27:54,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1688 transitions. [2020-11-09 14:27:54,097 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1688 transitions. Word has length 15 [2020-11-09 14:27:54,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:27:54,097 INFO L481 AbstractCegarLoop]: Abstraction has 536 states and 1688 transitions. [2020-11-09 14:27:54,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 14:27:54,098 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1688 transitions. [2020-11-09 14:27:54,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 14:27:54,099 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:27:54,099 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:27:54,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-09 14:27:54,099 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:27:54,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:27:54,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1795391144, now seen corresponding path program 1 times [2020-11-09 14:27:54,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:27:54,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923721036] [2020-11-09 14:27:54,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:27:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:27:54,184 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:27:54,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923721036] [2020-11-09 14:27:54,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:27:54,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 14:27:54,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090358958] [2020-11-09 14:27:54,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 14:27:54,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:27:54,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 14:27:54,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 14:27:54,187 INFO L87 Difference]: Start difference. First operand 536 states and 1688 transitions. Second operand 5 states. [2020-11-09 14:27:54,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:27:54,302 INFO L93 Difference]: Finished difference Result 736 states and 2123 transitions. [2020-11-09 14:27:54,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 14:27:54,303 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-09 14:27:54,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:27:54,309 INFO L225 Difference]: With dead ends: 736 [2020-11-09 14:27:54,309 INFO L226 Difference]: Without dead ends: 728 [2020-11-09 14:27:54,310 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 [2020-11-09 14:27:54,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-11-09 14:27:54,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 549. [2020-11-09 14:27:54,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 549 states. [2020-11-09 14:27:54,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 1684 transitions. [2020-11-09 14:27:54,347 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 1684 transitions. Word has length 17 [2020-11-09 14:27:54,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:27:54,348 INFO L481 AbstractCegarLoop]: Abstraction has 549 states and 1684 transitions. [2020-11-09 14:27:54,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 14:27:54,348 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 1684 transitions. [2020-11-09 14:27:54,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 14:27:54,350 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:27:54,350 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:27:54,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-09 14:27:54,350 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:27:54,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:27:54,351 INFO L82 PathProgramCache]: Analyzing trace with hash -181443140, now seen corresponding path program 1 times [2020-11-09 14:27:54,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:27:54,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260120256] [2020-11-09 14:27:54,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:27:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 14:27:54,367 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 14:27:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 14:27:54,381 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 14:27:54,390 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-09 14:27:54,390 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-09 14:27:54,391 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-09 14:27:54,391 WARN L386 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-11-09 14:27:54,391 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-11-09 14:27:54,406 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,406 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,406 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,406 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,406 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,406 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,406 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,406 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,407 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,407 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,407 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,407 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,407 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,407 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,408 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,408 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,408 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,408 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,408 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,408 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,408 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,408 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,409 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,409 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,409 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,409 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,409 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,409 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,409 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,410 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,410 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,410 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,410 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,410 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,410 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,410 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,410 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,411 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,411 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,411 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,411 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,411 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,411 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,411 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,412 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,412 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,412 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,412 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,412 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,412 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,412 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,412 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,413 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,413 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,413 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,413 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,413 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,413 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,414 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,414 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,414 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,414 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,414 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,414 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,414 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,414 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,415 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,415 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,415 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,415 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,415 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,415 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,415 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,415 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,416 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,416 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,416 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,416 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,416 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,416 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,417 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,417 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,417 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,417 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,417 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,417 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,417 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,418 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,418 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,418 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,418 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,418 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,418 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,418 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,419 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,419 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,419 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,419 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,419 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,419 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,419 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,419 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,420 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,420 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,420 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,420 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,420 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,420 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,420 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,420 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,421 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,421 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,421 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,421 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,421 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,421 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,421 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,421 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,422 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,422 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,422 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,422 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,422 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,422 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,422 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,422 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,423 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,423 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,423 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,423 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,423 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,423 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,423 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,423 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,424 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,424 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,424 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,424 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,424 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,424 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,424 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,424 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,425 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,425 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,425 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,425 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,425 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,425 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,425 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,425 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,425 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,426 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,426 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,427 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,428 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,428 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,428 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,428 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,429 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,431 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,431 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,431 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,431 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,432 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,433 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,433 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,433 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,433 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,433 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,435 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,435 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,435 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,435 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,435 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,436 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,437 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,437 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,437 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,437 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,437 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,437 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,437 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,439 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,439 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,439 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,439 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,439 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,440 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,440 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,440 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,441 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,441 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,441 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,441 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,442 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,442 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,442 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,442 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,443 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,443 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,444 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,444 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,444 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,444 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,444 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,444 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:27:54,446 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 14:27:54,446 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-11-09 14:27:54,447 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 14:27:54,447 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 14:27:54,447 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 14:27:54,447 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 14:27:54,447 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 14:27:54,447 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 14:27:54,447 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 14:27:54,447 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 14:27:54,449 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 14:27:54,449 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 138 places, 130 transitions, 324 flow [2020-11-09 14:27:54,450 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 138 places, 130 transitions, 324 flow [2020-11-09 14:27:54,450 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 138 places, 130 transitions, 324 flow [2020-11-09 14:27:54,474 INFO L129 PetriNetUnfolder]: 8/140 cut-off events. [2020-11-09 14:27:54,474 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-11-09 14:27:54,476 INFO L84 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 140 events. 8/140 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 235 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 160. Up to 10 conditions per place. [2020-11-09 14:27:54,480 INFO L116 LiptonReduction]: Number of co-enabled transitions 2176 [2020-11-09 14:27:57,121 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-11-09 14:27:58,797 WARN L194 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2020-11-09 14:27:58,974 WARN L194 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-11-09 14:27:59,126 WARN L194 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2020-11-09 14:27:59,471 WARN L194 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2020-11-09 14:27:59,638 WARN L194 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-09 14:27:59,957 WARN L194 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2020-11-09 14:28:00,127 WARN L194 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-09 14:28:00,136 INFO L131 LiptonReduction]: Checked pairs total: 3275 [2020-11-09 14:28:00,136 INFO L133 LiptonReduction]: Total number of compositions: 134 [2020-11-09 14:28:00,136 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 33 transitions, 130 flow [2020-11-09 14:28:00,286 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2060 states. [2020-11-09 14:28:00,286 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states. [2020-11-09 14:28:00,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-09 14:28:00,286 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:00,287 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-09 14:28:00,287 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 14:28:00,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:00,288 INFO L82 PathProgramCache]: Analyzing trace with hash 980800, now seen corresponding path program 1 times [2020-11-09 14:28:00,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:00,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319898202] [2020-11-09 14:28:00,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:00,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:28:00,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319898202] [2020-11-09 14:28:00,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:00,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 14:28:00,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710817514] [2020-11-09 14:28:00,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 14:28:00,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:00,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 14:28:00,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 14:28:00,311 INFO L87 Difference]: Start difference. First operand 2060 states. Second operand 3 states. [2020-11-09 14:28:00,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:00,388 INFO L93 Difference]: Finished difference Result 1889 states and 7217 transitions. [2020-11-09 14:28:00,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 14:28:00,389 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-09 14:28:00,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:00,410 INFO L225 Difference]: With dead ends: 1889 [2020-11-09 14:28:00,410 INFO L226 Difference]: Without dead ends: 1767 [2020-11-09 14:28:00,411 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 [2020-11-09 14:28:00,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2020-11-09 14:28:00,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1767. [2020-11-09 14:28:00,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1767 states. [2020-11-09 14:28:00,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 6690 transitions. [2020-11-09 14:28:00,524 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 6690 transitions. Word has length 3 [2020-11-09 14:28:00,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:00,525 INFO L481 AbstractCegarLoop]: Abstraction has 1767 states and 6690 transitions. [2020-11-09 14:28:00,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 14:28:00,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 6690 transitions. [2020-11-09 14:28:00,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 14:28:00,525 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:00,526 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:00,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-09 14:28:00,526 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 14:28:00,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:00,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1761952613, now seen corresponding path program 1 times [2020-11-09 14:28:00,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:00,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440313745] [2020-11-09 14:28:00,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:00,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:28:00,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440313745] [2020-11-09 14:28:00,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:00,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 14:28:00,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558381586] [2020-11-09 14:28:00,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 14:28:00,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:00,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 14:28:00,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 14:28:00,588 INFO L87 Difference]: Start difference. First operand 1767 states and 6690 transitions. Second operand 5 states. [2020-11-09 14:28:00,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:00,735 INFO L93 Difference]: Finished difference Result 2905 states and 10138 transitions. [2020-11-09 14:28:00,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 14:28:00,736 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-09 14:28:00,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:00,767 INFO L225 Difference]: With dead ends: 2905 [2020-11-09 14:28:00,767 INFO L226 Difference]: Without dead ends: 2899 [2020-11-09 14:28:00,769 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 [2020-11-09 14:28:00,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2020-11-09 14:28:00,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 1966. [2020-11-09 14:28:00,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1966 states. [2020-11-09 14:28:00,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 7503 transitions. [2020-11-09 14:28:00,906 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 7503 transitions. Word has length 9 [2020-11-09 14:28:00,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:00,908 INFO L481 AbstractCegarLoop]: Abstraction has 1966 states and 7503 transitions. [2020-11-09 14:28:00,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 14:28:00,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 7503 transitions. [2020-11-09 14:28:00,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 14:28:00,908 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:00,909 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:00,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-09 14:28:00,909 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 14:28:00,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:00,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1954545134, now seen corresponding path program 1 times [2020-11-09 14:28:00,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:00,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992076631] [2020-11-09 14:28:00,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:00,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-09 14:28:00,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992076631] [2020-11-09 14:28:00,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:00,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 14:28:00,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750136744] [2020-11-09 14:28:00,964 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 14:28:00,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:00,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 14:28:00,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 14:28:00,965 INFO L87 Difference]: Start difference. First operand 1966 states and 7503 transitions. Second operand 5 states. [2020-11-09 14:28:01,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:01,115 INFO L93 Difference]: Finished difference Result 3204 states and 11312 transitions. [2020-11-09 14:28:01,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 14:28:01,116 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 14:28:01,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:01,163 INFO L225 Difference]: With dead ends: 3204 [2020-11-09 14:28:01,163 INFO L226 Difference]: Without dead ends: 3194 [2020-11-09 14:28:01,163 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 [2020-11-09 14:28:01,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2020-11-09 14:28:01,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 2200. [2020-11-09 14:28:01,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2200 states. [2020-11-09 14:28:01,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2200 states to 2200 states and 8453 transitions. [2020-11-09 14:28:01,308 INFO L78 Accepts]: Start accepts. Automaton has 2200 states and 8453 transitions. Word has length 13 [2020-11-09 14:28:01,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:01,310 INFO L481 AbstractCegarLoop]: Abstraction has 2200 states and 8453 transitions. [2020-11-09 14:28:01,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 14:28:01,310 INFO L276 IsEmpty]: Start isEmpty. Operand 2200 states and 8453 transitions. [2020-11-09 14:28:01,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 14:28:01,311 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:01,312 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:01,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-09 14:28:01,312 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 14:28:01,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:01,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1417153478, now seen corresponding path program 1 times [2020-11-09 14:28:01,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:01,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222104005] [2020-11-09 14:28:01,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:01,476 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-11-09 14:28:01,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-09 14:28:01,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222104005] [2020-11-09 14:28:01,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:01,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 14:28:01,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367953450] [2020-11-09 14:28:01,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 14:28:01,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:01,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 14:28:01,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-09 14:28:01,501 INFO L87 Difference]: Start difference. First operand 2200 states and 8453 transitions. Second operand 7 states. [2020-11-09 14:28:01,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:01,867 INFO L93 Difference]: Finished difference Result 4556 states and 14911 transitions. [2020-11-09 14:28:01,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:28:01,868 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-11-09 14:28:01,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:01,899 INFO L225 Difference]: With dead ends: 4556 [2020-11-09 14:28:01,899 INFO L226 Difference]: Without dead ends: 4546 [2020-11-09 14:28:01,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-11-09 14:28:01,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4546 states. [2020-11-09 14:28:02,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 2157. [2020-11-09 14:28:02,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2157 states. [2020-11-09 14:28:02,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 8278 transitions. [2020-11-09 14:28:02,061 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 8278 transitions. Word has length 15 [2020-11-09 14:28:02,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:02,062 INFO L481 AbstractCegarLoop]: Abstraction has 2157 states and 8278 transitions. [2020-11-09 14:28:02,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 14:28:02,062 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 8278 transitions. [2020-11-09 14:28:02,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 14:28:02,063 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:02,063 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:02,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-09 14:28:02,063 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 14:28:02,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:02,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1419653318, now seen corresponding path program 2 times [2020-11-09 14:28:02,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:02,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452275886] [2020-11-09 14:28:02,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:02,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:02,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-09 14:28:02,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452275886] [2020-11-09 14:28:02,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:02,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 14:28:02,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938891277] [2020-11-09 14:28:02,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 14:28:02,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:02,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 14:28:02,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-09 14:28:02,136 INFO L87 Difference]: Start difference. First operand 2157 states and 8278 transitions. Second operand 7 states. [2020-11-09 14:28:02,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:02,464 INFO L93 Difference]: Finished difference Result 4612 states and 15111 transitions. [2020-11-09 14:28:02,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:28:02,465 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-11-09 14:28:02,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:02,487 INFO L225 Difference]: With dead ends: 4612 [2020-11-09 14:28:02,487 INFO L226 Difference]: Without dead ends: 4601 [2020-11-09 14:28:02,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-11-09 14:28:02,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4601 states. [2020-11-09 14:28:02,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4601 to 2035. [2020-11-09 14:28:02,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2035 states. [2020-11-09 14:28:02,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2035 states to 2035 states and 7845 transitions. [2020-11-09 14:28:02,640 INFO L78 Accepts]: Start accepts. Automaton has 2035 states and 7845 transitions. Word has length 15 [2020-11-09 14:28:02,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:02,640 INFO L481 AbstractCegarLoop]: Abstraction has 2035 states and 7845 transitions. [2020-11-09 14:28:02,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 14:28:02,640 INFO L276 IsEmpty]: Start isEmpty. Operand 2035 states and 7845 transitions. [2020-11-09 14:28:02,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 14:28:02,642 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:02,642 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:02,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-09 14:28:02,642 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 14:28:02,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:02,643 INFO L82 PathProgramCache]: Analyzing trace with hash 795193170, now seen corresponding path program 1 times [2020-11-09 14:28:02,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:02,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091873121] [2020-11-09 14:28:02,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:02,759 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:28:02,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091873121] [2020-11-09 14:28:02,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:02,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 14:28:02,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977901187] [2020-11-09 14:28:02,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 14:28:02,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:02,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 14:28:02,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 14:28:02,762 INFO L87 Difference]: Start difference. First operand 2035 states and 7845 transitions. Second operand 5 states. [2020-11-09 14:28:02,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:02,895 INFO L93 Difference]: Finished difference Result 3265 states and 11681 transitions. [2020-11-09 14:28:02,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 14:28:02,896 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-09 14:28:02,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:02,914 INFO L225 Difference]: With dead ends: 3265 [2020-11-09 14:28:02,914 INFO L226 Difference]: Without dead ends: 3250 [2020-11-09 14:28:02,917 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 [2020-11-09 14:28:02,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2020-11-09 14:28:03,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 2281. [2020-11-09 14:28:03,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2281 states. [2020-11-09 14:28:03,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 8755 transitions. [2020-11-09 14:28:03,039 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 8755 transitions. Word has length 17 [2020-11-09 14:28:03,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:03,039 INFO L481 AbstractCegarLoop]: Abstraction has 2281 states and 8755 transitions. [2020-11-09 14:28:03,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 14:28:03,039 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 8755 transitions. [2020-11-09 14:28:03,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 14:28:03,041 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:03,041 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:03,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-09 14:28:03,041 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 14:28:03,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:03,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1006706982, now seen corresponding path program 1 times [2020-11-09 14:28:03,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:03,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325257774] [2020-11-09 14:28:03,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:03,119 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-09 14:28:03,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325257774] [2020-11-09 14:28:03,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941326055] [2020-11-09 14:28:03,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:28:03,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:03,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-09 14:28:03,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:28:03,289 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-09 14:28:03,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:28:03,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2020-11-09 14:28:03,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348204030] [2020-11-09 14:28:03,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-09 14:28:03,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:03,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-09 14:28:03,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-11-09 14:28:03,291 INFO L87 Difference]: Start difference. First operand 2281 states and 8755 transitions. Second operand 12 states. [2020-11-09 14:28:03,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:03,667 INFO L93 Difference]: Finished difference Result 4825 states and 15986 transitions. [2020-11-09 14:28:03,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:28:03,668 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 19 [2020-11-09 14:28:03,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:03,694 INFO L225 Difference]: With dead ends: 4825 [2020-11-09 14:28:03,694 INFO L226 Difference]: Without dead ends: 4813 [2020-11-09 14:28:03,699 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2020-11-09 14:28:03,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4813 states. [2020-11-09 14:28:03,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4813 to 2305. [2020-11-09 14:28:03,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2305 states. [2020-11-09 14:28:03,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 8815 transitions. [2020-11-09 14:28:03,856 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 8815 transitions. Word has length 19 [2020-11-09 14:28:03,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:03,858 INFO L481 AbstractCegarLoop]: Abstraction has 2305 states and 8815 transitions. [2020-11-09 14:28:03,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-09 14:28:03,859 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 8815 transitions. [2020-11-09 14:28:03,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 14:28:03,863 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:03,863 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:04,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 14:28:04,079 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 14:28:04,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:04,080 INFO L82 PathProgramCache]: Analyzing trace with hash -323556866, now seen corresponding path program 2 times [2020-11-09 14:28:04,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:04,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009210775] [2020-11-09 14:28:04,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:04,207 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:28:04,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009210775] [2020-11-09 14:28:04,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:04,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 14:28:04,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147121714] [2020-11-09 14:28:04,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 14:28:04,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:04,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 14:28:04,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-09 14:28:04,210 INFO L87 Difference]: Start difference. First operand 2305 states and 8815 transitions. Second operand 7 states. [2020-11-09 14:28:04,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:04,571 INFO L93 Difference]: Finished difference Result 4886 states and 16183 transitions. [2020-11-09 14:28:04,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:28:04,572 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-11-09 14:28:04,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:04,596 INFO L225 Difference]: With dead ends: 4886 [2020-11-09 14:28:04,596 INFO L226 Difference]: Without dead ends: 4869 [2020-11-09 14:28:04,596 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 [2020-11-09 14:28:04,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4869 states. [2020-11-09 14:28:04,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4869 to 2153. [2020-11-09 14:28:04,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2153 states. [2020-11-09 14:28:04,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2153 states to 2153 states and 8255 transitions. [2020-11-09 14:28:04,743 INFO L78 Accepts]: Start accepts. Automaton has 2153 states and 8255 transitions. Word has length 19 [2020-11-09 14:28:04,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:04,743 INFO L481 AbstractCegarLoop]: Abstraction has 2153 states and 8255 transitions. [2020-11-09 14:28:04,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 14:28:04,744 INFO L276 IsEmpty]: Start isEmpty. Operand 2153 states and 8255 transitions. [2020-11-09 14:28:04,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 14:28:04,745 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:04,745 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:04,745 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-09 14:28:04,746 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 14:28:04,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:04,746 INFO L82 PathProgramCache]: Analyzing trace with hash -323554262, now seen corresponding path program 1 times [2020-11-09 14:28:04,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:04,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143165097] [2020-11-09 14:28:04,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:04,813 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:28:04,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143165097] [2020-11-09 14:28:04,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:04,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 14:28:04,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696498640] [2020-11-09 14:28:04,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 14:28:04,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:04,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 14:28:04,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-09 14:28:04,816 INFO L87 Difference]: Start difference. First operand 2153 states and 8255 transitions. Second operand 7 states. [2020-11-09 14:28:05,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:05,144 INFO L93 Difference]: Finished difference Result 4782 states and 15862 transitions. [2020-11-09 14:28:05,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:28:05,145 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-11-09 14:28:05,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:05,167 INFO L225 Difference]: With dead ends: 4782 [2020-11-09 14:28:05,168 INFO L226 Difference]: Without dead ends: 4765 [2020-11-09 14:28:05,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-11-09 14:28:05,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4765 states. [2020-11-09 14:28:05,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4765 to 2212. [2020-11-09 14:28:05,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2212 states. [2020-11-09 14:28:05,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2212 states to 2212 states and 8465 transitions. [2020-11-09 14:28:05,294 INFO L78 Accepts]: Start accepts. Automaton has 2212 states and 8465 transitions. Word has length 19 [2020-11-09 14:28:05,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:05,294 INFO L481 AbstractCegarLoop]: Abstraction has 2212 states and 8465 transitions. [2020-11-09 14:28:05,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 14:28:05,294 INFO L276 IsEmpty]: Start isEmpty. Operand 2212 states and 8465 transitions. [2020-11-09 14:28:05,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 14:28:05,296 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:05,296 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:05,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-09 14:28:05,296 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 14:28:05,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:05,297 INFO L82 PathProgramCache]: Analyzing trace with hash -307543382, now seen corresponding path program 2 times [2020-11-09 14:28:05,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:05,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365597556] [2020-11-09 14:28:05,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:05,364 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:28:05,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365597556] [2020-11-09 14:28:05,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:05,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 14:28:05,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501529248] [2020-11-09 14:28:05,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 14:28:05,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:05,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 14:28:05,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-09 14:28:05,396 INFO L87 Difference]: Start difference. First operand 2212 states and 8465 transitions. Second operand 7 states. [2020-11-09 14:28:05,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:05,724 INFO L93 Difference]: Finished difference Result 4774 states and 15828 transitions. [2020-11-09 14:28:05,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:28:05,724 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-11-09 14:28:05,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:05,745 INFO L225 Difference]: With dead ends: 4774 [2020-11-09 14:28:05,745 INFO L226 Difference]: Without dead ends: 4757 [2020-11-09 14:28:05,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-11-09 14:28:05,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4757 states. [2020-11-09 14:28:05,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4757 to 2150. [2020-11-09 14:28:05,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2150 states. [2020-11-09 14:28:05,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 8243 transitions. [2020-11-09 14:28:05,872 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 8243 transitions. Word has length 19 [2020-11-09 14:28:05,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:05,872 INFO L481 AbstractCegarLoop]: Abstraction has 2150 states and 8243 transitions. [2020-11-09 14:28:05,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 14:28:05,873 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 8243 transitions. [2020-11-09 14:28:05,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 14:28:05,875 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:05,875 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:05,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-11-09 14:28:05,875 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 14:28:05,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:05,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1077756158, now seen corresponding path program 1 times [2020-11-09 14:28:05,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:05,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879869262] [2020-11-09 14:28:05,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:05,964 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-09 14:28:05,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879869262] [2020-11-09 14:28:05,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660458618] [2020-11-09 14:28:05,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:28:06,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:06,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 14:28:06,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:28:06,162 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-09 14:28:06,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:28:06,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2020-11-09 14:28:06,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219908066] [2020-11-09 14:28:06,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-09 14:28:06,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:06,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-09 14:28:06,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-11-09 14:28:06,164 INFO L87 Difference]: Start difference. First operand 2150 states and 8243 transitions. Second operand 16 states. [2020-11-09 14:28:07,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:07,207 INFO L93 Difference]: Finished difference Result 6025 states and 18746 transitions. [2020-11-09 14:28:07,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:28:07,208 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2020-11-09 14:28:07,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:07,234 INFO L225 Difference]: With dead ends: 6025 [2020-11-09 14:28:07,235 INFO L226 Difference]: Without dead ends: 6017 [2020-11-09 14:28:07,236 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=397, Invalid=1085, Unknown=0, NotChecked=0, Total=1482 [2020-11-09 14:28:07,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6017 states. [2020-11-09 14:28:07,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6017 to 2121. [2020-11-09 14:28:07,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2121 states. [2020-11-09 14:28:07,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 8118 transitions. [2020-11-09 14:28:07,397 INFO L78 Accepts]: Start accepts. Automaton has 2121 states and 8118 transitions. Word has length 21 [2020-11-09 14:28:07,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:07,399 INFO L481 AbstractCegarLoop]: Abstraction has 2121 states and 8118 transitions. [2020-11-09 14:28:07,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-09 14:28:07,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2121 states and 8118 transitions. [2020-11-09 14:28:07,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 14:28:07,401 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:07,401 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:07,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-11-09 14:28:07,616 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 14:28:07,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:07,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1093767038, now seen corresponding path program 2 times [2020-11-09 14:28:07,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:07,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190086824] [2020-11-09 14:28:07,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:07,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:07,706 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-09 14:28:07,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190086824] [2020-11-09 14:28:07,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903496585] [2020-11-09 14:28:07,707 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:28:07,801 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 14:28:07,801 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 14:28:07,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 14:28:07,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:28:07,932 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-09 14:28:07,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:28:07,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2020-11-09 14:28:07,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375580548] [2020-11-09 14:28:07,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-09 14:28:07,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:07,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-09 14:28:07,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-11-09 14:28:07,935 INFO L87 Difference]: Start difference. First operand 2121 states and 8118 transitions. Second operand 16 states. [2020-11-09 14:28:08,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:08,953 INFO L93 Difference]: Finished difference Result 5922 states and 18404 transitions. [2020-11-09 14:28:08,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:28:08,953 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2020-11-09 14:28:08,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:08,974 INFO L225 Difference]: With dead ends: 5922 [2020-11-09 14:28:08,974 INFO L226 Difference]: Without dead ends: 5911 [2020-11-09 14:28:08,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=397, Invalid=1085, Unknown=0, NotChecked=0, Total=1482 [2020-11-09 14:28:09,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5911 states. [2020-11-09 14:28:09,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5911 to 2085. [2020-11-09 14:28:09,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2085 states. [2020-11-09 14:28:09,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 7975 transitions. [2020-11-09 14:28:09,148 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 7975 transitions. Word has length 21 [2020-11-09 14:28:09,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:09,148 INFO L481 AbstractCegarLoop]: Abstraction has 2085 states and 7975 transitions. [2020-11-09 14:28:09,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-09 14:28:09,148 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 7975 transitions. [2020-11-09 14:28:09,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 14:28:09,151 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:09,151 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:09,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 14:28:09,365 INFO L429 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 14:28:09,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:09,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1169886916, now seen corresponding path program 1 times [2020-11-09 14:28:09,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:09,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977991322] [2020-11-09 14:28:09,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:09,425 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-09 14:28:09,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977991322] [2020-11-09 14:28:09,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:09,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 14:28:09,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012153019] [2020-11-09 14:28:09,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 14:28:09,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:09,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 14:28:09,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 14:28:09,427 INFO L87 Difference]: Start difference. First operand 2085 states and 7975 transitions. Second operand 5 states. [2020-11-09 14:28:09,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:09,548 INFO L93 Difference]: Finished difference Result 3167 states and 11408 transitions. [2020-11-09 14:28:09,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 14:28:09,549 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-11-09 14:28:09,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:09,560 INFO L225 Difference]: With dead ends: 3167 [2020-11-09 14:28:09,560 INFO L226 Difference]: Without dead ends: 3151 [2020-11-09 14:28:09,561 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 [2020-11-09 14:28:09,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3151 states. [2020-11-09 14:28:09,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3151 to 2322. [2020-11-09 14:28:09,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2322 states. [2020-11-09 14:28:09,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2322 states to 2322 states and 8744 transitions. [2020-11-09 14:28:09,660 INFO L78 Accepts]: Start accepts. Automaton has 2322 states and 8744 transitions. Word has length 21 [2020-11-09 14:28:09,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:09,660 INFO L481 AbstractCegarLoop]: Abstraction has 2322 states and 8744 transitions. [2020-11-09 14:28:09,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 14:28:09,661 INFO L276 IsEmpty]: Start isEmpty. Operand 2322 states and 8744 transitions. [2020-11-09 14:28:09,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 14:28:09,663 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:09,663 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:09,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-11-09 14:28:09,664 INFO L429 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 14:28:09,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:09,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1700514858, now seen corresponding path program 3 times [2020-11-09 14:28:09,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:09,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392848693] [2020-11-09 14:28:09,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:09,755 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:28:09,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392848693] [2020-11-09 14:28:09,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:09,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-09 14:28:09,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686447264] [2020-11-09 14:28:09,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 14:28:09,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:09,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 14:28:09,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-09 14:28:09,757 INFO L87 Difference]: Start difference. First operand 2322 states and 8744 transitions. Second operand 9 states. [2020-11-09 14:28:10,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:10,596 INFO L93 Difference]: Finished difference Result 6235 states and 19513 transitions. [2020-11-09 14:28:10,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:28:10,596 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-11-09 14:28:10,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:10,610 INFO L225 Difference]: With dead ends: 6235 [2020-11-09 14:28:10,610 INFO L226 Difference]: Without dead ends: 6224 [2020-11-09 14:28:10,611 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 [2020-11-09 14:28:10,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6224 states. [2020-11-09 14:28:10,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6224 to 2235. [2020-11-09 14:28:10,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2235 states. [2020-11-09 14:28:10,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 8410 transitions. [2020-11-09 14:28:10,741 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 8410 transitions. Word has length 21 [2020-11-09 14:28:10,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:10,741 INFO L481 AbstractCegarLoop]: Abstraction has 2235 states and 8410 transitions. [2020-11-09 14:28:10,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 14:28:10,741 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 8410 transitions. [2020-11-09 14:28:10,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 14:28:10,743 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:10,743 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:10,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-11-09 14:28:10,744 INFO L429 AbstractCegarLoop]: === Iteration 15 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 14:28:10,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:10,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1698015018, now seen corresponding path program 4 times [2020-11-09 14:28:10,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:10,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967461963] [2020-11-09 14:28:10,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:10,877 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:28:10,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967461963] [2020-11-09 14:28:10,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:10,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-09 14:28:10,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985630350] [2020-11-09 14:28:10,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 14:28:10,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:10,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 14:28:10,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-09 14:28:10,879 INFO L87 Difference]: Start difference. First operand 2235 states and 8410 transitions. Second operand 9 states. [2020-11-09 14:28:11,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:11,725 INFO L93 Difference]: Finished difference Result 6169 states and 19292 transitions. [2020-11-09 14:28:11,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:28:11,725 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-11-09 14:28:11,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:11,740 INFO L225 Difference]: With dead ends: 6169 [2020-11-09 14:28:11,741 INFO L226 Difference]: Without dead ends: 6155 [2020-11-09 14:28:11,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-11-09 14:28:11,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6155 states. [2020-11-09 14:28:11,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6155 to 2191. [2020-11-09 14:28:11,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2191 states. [2020-11-09 14:28:11,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 8230 transitions. [2020-11-09 14:28:11,879 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 8230 transitions. Word has length 21 [2020-11-09 14:28:11,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:11,880 INFO L481 AbstractCegarLoop]: Abstraction has 2191 states and 8230 transitions. [2020-11-09 14:28:11,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 14:28:11,880 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 8230 transitions. [2020-11-09 14:28:11,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 14:28:11,885 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:11,885 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:11,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-11-09 14:28:11,885 INFO L429 AbstractCegarLoop]: === Iteration 16 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 14:28:11,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:11,886 INFO L82 PathProgramCache]: Analyzing trace with hash 817049814, now seen corresponding path program 5 times [2020-11-09 14:28:11,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:11,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153500710] [2020-11-09 14:28:11,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:11,988 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:28:11,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153500710] [2020-11-09 14:28:11,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:11,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-09 14:28:11,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631162399] [2020-11-09 14:28:11,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 14:28:11,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:11,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 14:28:11,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-09 14:28:11,990 INFO L87 Difference]: Start difference. First operand 2191 states and 8230 transitions. Second operand 9 states. [2020-11-09 14:28:12,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:12,793 INFO L93 Difference]: Finished difference Result 6158 states and 19267 transitions. [2020-11-09 14:28:12,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:28:12,794 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-11-09 14:28:12,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:12,808 INFO L225 Difference]: With dead ends: 6158 [2020-11-09 14:28:12,808 INFO L226 Difference]: Without dead ends: 6147 [2020-11-09 14:28:12,808 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 [2020-11-09 14:28:12,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6147 states. [2020-11-09 14:28:12,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6147 to 2096. [2020-11-09 14:28:12,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2096 states. [2020-11-09 14:28:12,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2096 states to 2096 states and 7876 transitions. [2020-11-09 14:28:12,960 INFO L78 Accepts]: Start accepts. Automaton has 2096 states and 7876 transitions. Word has length 21 [2020-11-09 14:28:12,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:12,961 INFO L481 AbstractCegarLoop]: Abstraction has 2096 states and 7876 transitions. [2020-11-09 14:28:12,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 14:28:12,961 INFO L276 IsEmpty]: Start isEmpty. Operand 2096 states and 7876 transitions. [2020-11-09 14:28:12,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 14:28:12,963 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:12,963 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:12,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-11-09 14:28:12,963 INFO L429 AbstractCegarLoop]: === Iteration 17 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 14:28:12,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:12,964 INFO L82 PathProgramCache]: Analyzing trace with hash 803538774, now seen corresponding path program 6 times [2020-11-09 14:28:12,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:12,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025176365] [2020-11-09 14:28:12,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:13,052 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:28:13,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025176365] [2020-11-09 14:28:13,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:13,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-09 14:28:13,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765526233] [2020-11-09 14:28:13,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 14:28:13,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:13,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 14:28:13,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-09 14:28:13,054 INFO L87 Difference]: Start difference. First operand 2096 states and 7876 transitions. Second operand 9 states. [2020-11-09 14:28:13,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:13,890 INFO L93 Difference]: Finished difference Result 6017 states and 18791 transitions. [2020-11-09 14:28:13,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:28:13,891 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-11-09 14:28:13,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:13,905 INFO L225 Difference]: With dead ends: 6017 [2020-11-09 14:28:13,905 INFO L226 Difference]: Without dead ends: 6002 [2020-11-09 14:28:13,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-11-09 14:28:13,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6002 states. [2020-11-09 14:28:14,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6002 to 1965. [2020-11-09 14:28:14,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1965 states. [2020-11-09 14:28:14,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 7429 transitions. [2020-11-09 14:28:14,043 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 7429 transitions. Word has length 21 [2020-11-09 14:28:14,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:14,044 INFO L481 AbstractCegarLoop]: Abstraction has 1965 states and 7429 transitions. [2020-11-09 14:28:14,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 14:28:14,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 7429 transitions. [2020-11-09 14:28:14,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-09 14:28:14,047 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:14,047 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:14,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-11-09 14:28:14,047 INFO L429 AbstractCegarLoop]: === Iteration 18 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 14:28:14,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:14,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1912181542, now seen corresponding path program 1 times [2020-11-09 14:28:14,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:14,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695025333] [2020-11-09 14:28:14,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:14,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 14:28:14,062 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 14:28:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 14:28:14,073 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 14:28:14,082 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-09 14:28:14,083 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-09 14:28:14,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-11-09 14:28:14,083 WARN L386 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-11-09 14:28:14,083 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-11-09 14:28:14,103 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,103 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,103 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,103 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,103 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,104 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,104 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,104 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,104 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,104 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,104 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,104 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,104 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,105 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,105 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,105 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,105 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,105 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,105 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,105 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,105 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,106 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,106 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,106 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,106 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,106 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,106 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,106 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,106 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,107 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,107 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,107 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,107 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,107 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,107 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,107 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,107 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,107 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,108 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,108 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,108 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,108 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,108 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,108 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,108 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,109 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,109 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,109 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,109 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,109 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,109 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,109 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,109 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,110 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,110 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,110 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,110 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,110 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,110 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,110 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,110 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,111 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,111 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,111 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,111 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,111 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,111 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,111 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,111 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,112 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,112 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,112 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,112 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,112 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,112 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,112 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,113 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,113 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,113 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,113 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,113 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,113 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,113 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,114 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,114 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,114 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,114 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,114 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,114 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,114 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,116 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,116 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,116 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,116 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,118 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,118 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,118 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,118 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,118 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,118 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,122 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,123 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,123 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,123 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,124 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,124 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,124 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,124 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,125 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,125 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,125 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,125 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,125 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,125 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,125 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,125 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,126 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,126 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,126 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,126 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,126 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,126 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,126 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,126 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,127 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,127 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,127 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,127 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,127 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,127 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,127 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,127 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,127 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,127 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,128 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,128 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,128 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,128 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,128 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,128 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,128 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,129 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,129 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,129 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,129 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,129 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,129 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,129 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,129 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,130 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,130 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,130 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,130 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,130 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,132 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,132 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,132 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,132 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,133 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,134 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,134 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,134 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,134 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,134 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,135 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,135 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,136 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,136 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,136 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,137 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,137 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,137 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,137 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,138 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,139 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,139 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,139 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,139 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,139 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,140 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,140 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,140 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,141 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,141 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,141 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,142 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,142 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,142 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,142 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,142 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,143 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,144 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,144 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,144 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,144 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,144 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,144 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,144 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,145 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,146 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,146 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,146 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,147 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,147 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,148 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,148 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,148 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,149 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,149 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,149 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,149 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,149 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:28:14,150 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 14:28:14,151 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-11-09 14:28:14,151 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 14:28:14,151 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 14:28:14,152 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 14:28:14,152 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 14:28:14,152 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 14:28:14,152 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 14:28:14,152 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 14:28:14,152 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 14:28:14,154 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 14:28:14,154 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 151 transitions, 392 flow [2020-11-09 14:28:14,154 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 151 transitions, 392 flow [2020-11-09 14:28:14,154 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 161 places, 151 transitions, 392 flow [2020-11-09 14:28:14,183 INFO L129 PetriNetUnfolder]: 9/161 cut-off events. [2020-11-09 14:28:14,183 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-11-09 14:28:14,185 INFO L84 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 161 events. 9/161 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 266 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 188. Up to 12 conditions per place. [2020-11-09 14:28:14,192 INFO L116 LiptonReduction]: Number of co-enabled transitions 2744 [2020-11-09 14:28:18,203 WARN L194 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-11-09 14:28:18,427 WARN L194 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-11-09 14:28:19,365 WARN L194 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2020-11-09 14:28:19,554 WARN L194 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-11-09 14:28:19,770 WARN L194 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 82 [2020-11-09 14:28:19,978 WARN L194 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-11-09 14:28:20,349 WARN L194 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 94 [2020-11-09 14:28:20,493 WARN L194 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-09 14:28:20,855 WARN L194 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 97 [2020-11-09 14:28:21,026 WARN L194 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-09 14:28:21,033 INFO L131 LiptonReduction]: Checked pairs total: 4200 [2020-11-09 14:28:21,033 INFO L133 LiptonReduction]: Total number of compositions: 162 [2020-11-09 14:28:21,033 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 39 transitions, 168 flow [2020-11-09 14:28:21,509 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6191 states. [2020-11-09 14:28:21,509 INFO L276 IsEmpty]: Start isEmpty. Operand 6191 states. [2020-11-09 14:28:21,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-09 14:28:21,509 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:21,509 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-09 14:28:21,510 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:21,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:21,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1311531, now seen corresponding path program 1 times [2020-11-09 14:28:21,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:21,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143434590] [2020-11-09 14:28:21,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:21,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:28:21,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143434590] [2020-11-09 14:28:21,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:21,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 14:28:21,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019272497] [2020-11-09 14:28:21,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 14:28:21,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:21,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 14:28:21,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 14:28:21,536 INFO L87 Difference]: Start difference. First operand 6191 states. Second operand 3 states. [2020-11-09 14:28:21,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:21,628 INFO L93 Difference]: Finished difference Result 5844 states and 26316 transitions. [2020-11-09 14:28:21,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 14:28:21,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-09 14:28:21,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:21,654 INFO L225 Difference]: With dead ends: 5844 [2020-11-09 14:28:21,654 INFO L226 Difference]: Without dead ends: 5479 [2020-11-09 14:28:21,654 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 [2020-11-09 14:28:21,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5479 states. [2020-11-09 14:28:21,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5479 to 5479. [2020-11-09 14:28:21,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-11-09 14:28:21,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 24493 transitions. [2020-11-09 14:28:21,886 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 24493 transitions. Word has length 3 [2020-11-09 14:28:21,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:21,886 INFO L481 AbstractCegarLoop]: Abstraction has 5479 states and 24493 transitions. [2020-11-09 14:28:21,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 14:28:21,886 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 24493 transitions. [2020-11-09 14:28:21,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 14:28:21,886 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:21,887 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:21,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-11-09 14:28:21,887 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:21,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:21,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1486087653, now seen corresponding path program 1 times [2020-11-09 14:28:21,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:21,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917538769] [2020-11-09 14:28:21,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:21,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:28:21,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917538769] [2020-11-09 14:28:21,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:21,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 14:28:21,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933358795] [2020-11-09 14:28:21,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 14:28:21,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:21,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 14:28:21,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 14:28:21,936 INFO L87 Difference]: Start difference. First operand 5479 states and 24493 transitions. Second operand 5 states. [2020-11-09 14:28:22,051 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-11-09 14:28:22,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:22,234 INFO L93 Difference]: Finished difference Result 9673 states and 40333 transitions. [2020-11-09 14:28:22,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 14:28:22,235 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-09 14:28:22,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:22,283 INFO L225 Difference]: With dead ends: 9673 [2020-11-09 14:28:22,284 INFO L226 Difference]: Without dead ends: 9666 [2020-11-09 14:28:22,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 14:28:22,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9666 states. [2020-11-09 14:28:22,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9666 to 6331. [2020-11-09 14:28:22,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6331 states. [2020-11-09 14:28:22,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6331 states to 6331 states and 28544 transitions. [2020-11-09 14:28:22,567 INFO L78 Accepts]: Start accepts. Automaton has 6331 states and 28544 transitions. Word has length 9 [2020-11-09 14:28:22,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:22,568 INFO L481 AbstractCegarLoop]: Abstraction has 6331 states and 28544 transitions. [2020-11-09 14:28:22,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 14:28:22,568 INFO L276 IsEmpty]: Start isEmpty. Operand 6331 states and 28544 transitions. [2020-11-09 14:28:22,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 14:28:22,568 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:22,569 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:22,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-11-09 14:28:22,569 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:22,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:22,569 INFO L82 PathProgramCache]: Analyzing trace with hash -2078441721, now seen corresponding path program 1 times [2020-11-09 14:28:22,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:22,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420185335] [2020-11-09 14:28:22,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:22,616 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-09 14:28:22,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420185335] [2020-11-09 14:28:22,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:22,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 14:28:22,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225780549] [2020-11-09 14:28:22,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 14:28:22,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:22,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 14:28:22,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 14:28:22,618 INFO L87 Difference]: Start difference. First operand 6331 states and 28544 transitions. Second operand 5 states. [2020-11-09 14:28:22,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:22,841 INFO L93 Difference]: Finished difference Result 11081 states and 46826 transitions. [2020-11-09 14:28:22,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 14:28:22,842 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 14:28:22,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:22,898 INFO L225 Difference]: With dead ends: 11081 [2020-11-09 14:28:22,898 INFO L226 Difference]: Without dead ends: 11068 [2020-11-09 14:28:22,900 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 [2020-11-09 14:28:23,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11068 states. [2020-11-09 14:28:23,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11068 to 7391. [2020-11-09 14:28:23,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7391 states. [2020-11-09 14:28:23,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7391 states to 7391 states and 33694 transitions. [2020-11-09 14:28:23,458 INFO L78 Accepts]: Start accepts. Automaton has 7391 states and 33694 transitions. Word has length 13 [2020-11-09 14:28:23,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:23,458 INFO L481 AbstractCegarLoop]: Abstraction has 7391 states and 33694 transitions. [2020-11-09 14:28:23,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 14:28:23,458 INFO L276 IsEmpty]: Start isEmpty. Operand 7391 states and 33694 transitions. [2020-11-09 14:28:23,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 14:28:23,459 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:23,459 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:23,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-11-09 14:28:23,459 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:23,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:23,460 INFO L82 PathProgramCache]: Analyzing trace with hash -80896491, now seen corresponding path program 1 times [2020-11-09 14:28:23,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:23,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042006727] [2020-11-09 14:28:23,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:23,521 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:28:23,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042006727] [2020-11-09 14:28:23,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622910789] [2020-11-09 14:28:23,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:28:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:23,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-09 14:28:23,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:28:23,843 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:28:23,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:28:23,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2020-11-09 14:28:23,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354702708] [2020-11-09 14:28:23,844 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-09 14:28:23,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:23,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-09 14:28:23,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-11-09 14:28:23,845 INFO L87 Difference]: Start difference. First operand 7391 states and 33694 transitions. Second operand 12 states. [2020-11-09 14:28:24,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:24,381 INFO L93 Difference]: Finished difference Result 16749 states and 66010 transitions. [2020-11-09 14:28:24,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:28:24,382 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2020-11-09 14:28:24,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:24,438 INFO L225 Difference]: With dead ends: 16749 [2020-11-09 14:28:24,438 INFO L226 Difference]: Without dead ends: 16736 [2020-11-09 14:28:24,438 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2020-11-09 14:28:24,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16736 states. [2020-11-09 14:28:24,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16736 to 7303. [2020-11-09 14:28:24,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7303 states. [2020-11-09 14:28:25,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7303 states to 7303 states and 33260 transitions. [2020-11-09 14:28:25,029 INFO L78 Accepts]: Start accepts. Automaton has 7303 states and 33260 transitions. Word has length 15 [2020-11-09 14:28:25,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:25,029 INFO L481 AbstractCegarLoop]: Abstraction has 7303 states and 33260 transitions. [2020-11-09 14:28:25,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-09 14:28:25,029 INFO L276 IsEmpty]: Start isEmpty. Operand 7303 states and 33260 transitions. [2020-11-09 14:28:25,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 14:28:25,030 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:25,030 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:25,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2020-11-09 14:28:25,239 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:25,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:25,240 INFO L82 PathProgramCache]: Analyzing trace with hash -222679403, now seen corresponding path program 2 times [2020-11-09 14:28:25,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:25,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616058823] [2020-11-09 14:28:25,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:25,305 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-09 14:28:25,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616058823] [2020-11-09 14:28:25,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:25,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 14:28:25,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012960389] [2020-11-09 14:28:25,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 14:28:25,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:25,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 14:28:25,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-09 14:28:25,308 INFO L87 Difference]: Start difference. First operand 7303 states and 33260 transitions. Second operand 7 states. [2020-11-09 14:28:25,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:25,912 INFO L93 Difference]: Finished difference Result 17085 states and 67393 transitions. [2020-11-09 14:28:25,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:28:25,913 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-11-09 14:28:25,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:25,985 INFO L225 Difference]: With dead ends: 17085 [2020-11-09 14:28:25,985 INFO L226 Difference]: Without dead ends: 17071 [2020-11-09 14:28:25,985 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 [2020-11-09 14:28:26,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17071 states. [2020-11-09 14:28:26,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17071 to 7048. [2020-11-09 14:28:26,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7048 states. [2020-11-09 14:28:26,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7048 states to 7048 states and 32136 transitions. [2020-11-09 14:28:26,468 INFO L78 Accepts]: Start accepts. Automaton has 7048 states and 32136 transitions. Word has length 15 [2020-11-09 14:28:26,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:26,468 INFO L481 AbstractCegarLoop]: Abstraction has 7048 states and 32136 transitions. [2020-11-09 14:28:26,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 14:28:26,469 INFO L276 IsEmpty]: Start isEmpty. Operand 7048 states and 32136 transitions. [2020-11-09 14:28:26,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 14:28:26,469 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:26,470 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:26,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-11-09 14:28:26,470 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:26,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:26,471 INFO L82 PathProgramCache]: Analyzing trace with hash -681474966, now seen corresponding path program 1 times [2020-11-09 14:28:26,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:26,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024062562] [2020-11-09 14:28:26,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:26,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:26,647 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:28:26,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024062562] [2020-11-09 14:28:26,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:26,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 14:28:26,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367787878] [2020-11-09 14:28:26,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 14:28:26,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:26,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 14:28:26,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 14:28:26,650 INFO L87 Difference]: Start difference. First operand 7048 states and 32136 transitions. Second operand 5 states. [2020-11-09 14:28:26,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:26,881 INFO L93 Difference]: Finished difference Result 12234 states and 52488 transitions. [2020-11-09 14:28:26,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 14:28:26,882 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-09 14:28:26,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:26,927 INFO L225 Difference]: With dead ends: 12234 [2020-11-09 14:28:26,928 INFO L226 Difference]: Without dead ends: 12212 [2020-11-09 14:28:26,928 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 [2020-11-09 14:28:27,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12212 states. [2020-11-09 14:28:27,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12212 to 8342. [2020-11-09 14:28:27,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8342 states. [2020-11-09 14:28:27,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8342 states to 8342 states and 38278 transitions. [2020-11-09 14:28:27,350 INFO L78 Accepts]: Start accepts. Automaton has 8342 states and 38278 transitions. Word has length 17 [2020-11-09 14:28:27,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:27,350 INFO L481 AbstractCegarLoop]: Abstraction has 8342 states and 38278 transitions. [2020-11-09 14:28:27,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 14:28:27,350 INFO L276 IsEmpty]: Start isEmpty. Operand 8342 states and 38278 transitions. [2020-11-09 14:28:27,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 14:28:27,352 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:27,352 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:27,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-11-09 14:28:27,352 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:27,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:27,353 INFO L82 PathProgramCache]: Analyzing trace with hash -66098056, now seen corresponding path program 1 times [2020-11-09 14:28:27,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:27,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564869400] [2020-11-09 14:28:27,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:27,434 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-09 14:28:27,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564869400] [2020-11-09 14:28:27,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250032050] [2020-11-09 14:28:27,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:28:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:27,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-09 14:28:27,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:28:27,700 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-09 14:28:27,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:28:27,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2020-11-09 14:28:27,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087955315] [2020-11-09 14:28:27,701 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-09 14:28:27,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:27,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-09 14:28:27,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-11-09 14:28:27,702 INFO L87 Difference]: Start difference. First operand 8342 states and 38278 transitions. Second operand 12 states. [2020-11-09 14:28:28,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:28,229 INFO L93 Difference]: Finished difference Result 19016 states and 76191 transitions. [2020-11-09 14:28:28,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:28:28,230 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 19 [2020-11-09 14:28:28,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:28,426 INFO L225 Difference]: With dead ends: 19016 [2020-11-09 14:28:28,426 INFO L226 Difference]: Without dead ends: 18998 [2020-11-09 14:28:28,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2020-11-09 14:28:28,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18998 states. [2020-11-09 14:28:28,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18998 to 8452. [2020-11-09 14:28:28,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8452 states. [2020-11-09 14:28:28,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8452 states to 8452 states and 38704 transitions. [2020-11-09 14:28:28,971 INFO L78 Accepts]: Start accepts. Automaton has 8452 states and 38704 transitions. Word has length 19 [2020-11-09 14:28:28,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:28,971 INFO L481 AbstractCegarLoop]: Abstraction has 8452 states and 38704 transitions. [2020-11-09 14:28:28,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-09 14:28:28,972 INFO L276 IsEmpty]: Start isEmpty. Operand 8452 states and 38704 transitions. [2020-11-09 14:28:28,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 14:28:28,973 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:28,973 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:29,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-11-09 14:28:29,179 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:29,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:29,180 INFO L82 PathProgramCache]: Analyzing trace with hash -2062391496, now seen corresponding path program 2 times [2020-11-09 14:28:29,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:29,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201218773] [2020-11-09 14:28:29,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:29,243 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:28:29,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201218773] [2020-11-09 14:28:29,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:29,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 14:28:29,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040715994] [2020-11-09 14:28:29,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 14:28:29,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:29,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 14:28:29,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-09 14:28:29,246 INFO L87 Difference]: Start difference. First operand 8452 states and 38704 transitions. Second operand 7 states. [2020-11-09 14:28:30,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:30,055 INFO L93 Difference]: Finished difference Result 19420 states and 77854 transitions. [2020-11-09 14:28:30,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:28:30,058 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-11-09 14:28:30,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:30,194 INFO L225 Difference]: With dead ends: 19420 [2020-11-09 14:28:30,194 INFO L226 Difference]: Without dead ends: 19395 [2020-11-09 14:28:30,195 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 [2020-11-09 14:28:30,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19395 states. [2020-11-09 14:28:30,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19395 to 8129. [2020-11-09 14:28:30,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8129 states. [2020-11-09 14:28:30,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8129 states to 8129 states and 37298 transitions. [2020-11-09 14:28:30,844 INFO L78 Accepts]: Start accepts. Automaton has 8129 states and 37298 transitions. Word has length 19 [2020-11-09 14:28:30,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:30,849 INFO L481 AbstractCegarLoop]: Abstraction has 8129 states and 37298 transitions. [2020-11-09 14:28:30,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 14:28:30,850 INFO L276 IsEmpty]: Start isEmpty. Operand 8129 states and 37298 transitions. [2020-11-09 14:28:30,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 14:28:30,851 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:30,851 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:30,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-11-09 14:28:30,851 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:30,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:30,855 INFO L82 PathProgramCache]: Analyzing trace with hash -2062399215, now seen corresponding path program 1 times [2020-11-09 14:28:30,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:30,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179007366] [2020-11-09 14:28:30,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:30,918 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:28:30,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179007366] [2020-11-09 14:28:30,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:30,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 14:28:30,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29757226] [2020-11-09 14:28:30,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 14:28:30,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:30,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 14:28:30,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-09 14:28:30,920 INFO L87 Difference]: Start difference. First operand 8129 states and 37298 transitions. Second operand 7 states. [2020-11-09 14:28:31,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:31,513 INFO L93 Difference]: Finished difference Result 19373 states and 77785 transitions. [2020-11-09 14:28:31,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:28:31,514 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-11-09 14:28:31,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:31,571 INFO L225 Difference]: With dead ends: 19373 [2020-11-09 14:28:31,571 INFO L226 Difference]: Without dead ends: 19348 [2020-11-09 14:28:31,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-11-09 14:28:31,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19348 states. [2020-11-09 14:28:32,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19348 to 8375. [2020-11-09 14:28:32,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8375 states. [2020-11-09 14:28:32,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8375 states to 8375 states and 38394 transitions. [2020-11-09 14:28:32,212 INFO L78 Accepts]: Start accepts. Automaton has 8375 states and 38394 transitions. Word has length 19 [2020-11-09 14:28:32,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:32,212 INFO L481 AbstractCegarLoop]: Abstraction has 8375 states and 38394 transitions. [2020-11-09 14:28:32,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 14:28:32,212 INFO L276 IsEmpty]: Start isEmpty. Operand 8375 states and 38394 transitions. [2020-11-09 14:28:32,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 14:28:32,213 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:32,213 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:32,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-11-09 14:28:32,214 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:32,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:32,214 INFO L82 PathProgramCache]: Analyzing trace with hash -2050465455, now seen corresponding path program 2 times [2020-11-09 14:28:32,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:32,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537694932] [2020-11-09 14:28:32,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:32,296 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:28:32,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537694932] [2020-11-09 14:28:32,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:32,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 14:28:32,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129351633] [2020-11-09 14:28:32,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 14:28:32,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:32,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 14:28:32,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-09 14:28:32,298 INFO L87 Difference]: Start difference. First operand 8375 states and 38394 transitions. Second operand 7 states. [2020-11-09 14:28:32,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:32,970 INFO L93 Difference]: Finished difference Result 19555 states and 78564 transitions. [2020-11-09 14:28:32,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:28:32,970 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-11-09 14:28:32,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:33,037 INFO L225 Difference]: With dead ends: 19555 [2020-11-09 14:28:33,037 INFO L226 Difference]: Without dead ends: 19530 [2020-11-09 14:28:33,038 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-11-09 14:28:33,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19530 states. [2020-11-09 14:28:33,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19530 to 8317. [2020-11-09 14:28:33,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8317 states. [2020-11-09 14:28:33,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8317 states to 8317 states and 38184 transitions. [2020-11-09 14:28:33,632 INFO L78 Accepts]: Start accepts. Automaton has 8317 states and 38184 transitions. Word has length 19 [2020-11-09 14:28:33,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:33,632 INFO L481 AbstractCegarLoop]: Abstraction has 8317 states and 38184 transitions. [2020-11-09 14:28:33,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 14:28:33,632 INFO L276 IsEmpty]: Start isEmpty. Operand 8317 states and 38184 transitions. [2020-11-09 14:28:33,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 14:28:33,634 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:33,634 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:33,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-11-09 14:28:33,634 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:33,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:33,635 INFO L82 PathProgramCache]: Analyzing trace with hash 904291743, now seen corresponding path program 1 times [2020-11-09 14:28:33,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:33,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925494968] [2020-11-09 14:28:33,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:33,724 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-09 14:28:33,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925494968] [2020-11-09 14:28:33,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266266423] [2020-11-09 14:28:33,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:28:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:33,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 14:28:33,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:28:33,959 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-09 14:28:33,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:28:33,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2020-11-09 14:28:33,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527026135] [2020-11-09 14:28:33,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-09 14:28:33,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:33,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-09 14:28:33,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-11-09 14:28:33,961 INFO L87 Difference]: Start difference. First operand 8317 states and 38184 transitions. Second operand 16 states. [2020-11-09 14:28:35,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:35,197 INFO L93 Difference]: Finished difference Result 26969 states and 101544 transitions. [2020-11-09 14:28:35,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:28:35,197 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2020-11-09 14:28:35,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:35,284 INFO L225 Difference]: With dead ends: 26969 [2020-11-09 14:28:35,284 INFO L226 Difference]: Without dead ends: 26957 [2020-11-09 14:28:35,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=397, Invalid=1085, Unknown=0, NotChecked=0, Total=1482 [2020-11-09 14:28:35,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26957 states. [2020-11-09 14:28:35,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26957 to 8208. [2020-11-09 14:28:35,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8208 states. [2020-11-09 14:28:36,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8208 states to 8208 states and 37640 transitions. [2020-11-09 14:28:36,020 INFO L78 Accepts]: Start accepts. Automaton has 8208 states and 37640 transitions. Word has length 21 [2020-11-09 14:28:36,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:36,021 INFO L481 AbstractCegarLoop]: Abstraction has 8208 states and 37640 transitions. [2020-11-09 14:28:36,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-09 14:28:36,021 INFO L276 IsEmpty]: Start isEmpty. Operand 8208 states and 37640 transitions. [2020-11-09 14:28:36,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 14:28:36,022 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:36,023 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:36,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 14:28:36,225 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:36,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:36,225 INFO L82 PathProgramCache]: Analyzing trace with hash 916225503, now seen corresponding path program 2 times [2020-11-09 14:28:36,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:36,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218225906] [2020-11-09 14:28:36,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:36,324 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-09 14:28:36,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218225906] [2020-11-09 14:28:36,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725721802] [2020-11-09 14:28:36,325 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:28:36,426 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 14:28:36,426 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 14:28:36,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 14:28:36,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:28:36,612 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-09 14:28:36,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:28:36,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2020-11-09 14:28:36,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910006944] [2020-11-09 14:28:36,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-09 14:28:36,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:36,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-09 14:28:36,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-11-09 14:28:36,615 INFO L87 Difference]: Start difference. First operand 8208 states and 37640 transitions. Second operand 16 states. [2020-11-09 14:28:38,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:38,183 INFO L93 Difference]: Finished difference Result 26669 states and 100297 transitions. [2020-11-09 14:28:38,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:28:38,183 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2020-11-09 14:28:38,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:38,273 INFO L225 Difference]: With dead ends: 26669 [2020-11-09 14:28:38,273 INFO L226 Difference]: Without dead ends: 26653 [2020-11-09 14:28:38,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=397, Invalid=1085, Unknown=0, NotChecked=0, Total=1482 [2020-11-09 14:28:38,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26653 states. [2020-11-09 14:28:38,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26653 to 8091. [2020-11-09 14:28:38,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8091 states. [2020-11-09 14:28:38,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8091 states to 8091 states and 37076 transitions. [2020-11-09 14:28:38,937 INFO L78 Accepts]: Start accepts. Automaton has 8091 states and 37076 transitions. Word has length 21 [2020-11-09 14:28:38,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:38,937 INFO L481 AbstractCegarLoop]: Abstraction has 8091 states and 37076 transitions. [2020-11-09 14:28:38,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-09 14:28:38,938 INFO L276 IsEmpty]: Start isEmpty. Operand 8091 states and 37076 transitions. [2020-11-09 14:28:38,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 14:28:38,939 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:38,939 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:39,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2020-11-09 14:28:39,141 INFO L429 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:39,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:39,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1978290081, now seen corresponding path program 3 times [2020-11-09 14:28:39,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:39,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665043051] [2020-11-09 14:28:39,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:39,228 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:28:39,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665043051] [2020-11-09 14:28:39,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:39,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-09 14:28:39,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176254709] [2020-11-09 14:28:39,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 14:28:39,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:39,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 14:28:39,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-09 14:28:39,231 INFO L87 Difference]: Start difference. First operand 8091 states and 37076 transitions. Second operand 9 states. [2020-11-09 14:28:40,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:40,533 INFO L93 Difference]: Finished difference Result 26678 states and 100382 transitions. [2020-11-09 14:28:40,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:28:40,534 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-11-09 14:28:40,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:40,633 INFO L225 Difference]: With dead ends: 26678 [2020-11-09 14:28:40,634 INFO L226 Difference]: Without dead ends: 26666 [2020-11-09 14:28:40,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-11-09 14:28:40,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26666 states. [2020-11-09 14:28:41,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26666 to 7869. [2020-11-09 14:28:41,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7869 states. [2020-11-09 14:28:41,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7869 states to 7869 states and 36086 transitions. [2020-11-09 14:28:41,373 INFO L78 Accepts]: Start accepts. Automaton has 7869 states and 36086 transitions. Word has length 21 [2020-11-09 14:28:41,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:41,373 INFO L481 AbstractCegarLoop]: Abstraction has 7869 states and 36086 transitions. [2020-11-09 14:28:41,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 14:28:41,373 INFO L276 IsEmpty]: Start isEmpty. Operand 7869 states and 36086 transitions. [2020-11-09 14:28:41,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 14:28:41,381 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:41,381 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:41,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-11-09 14:28:41,381 INFO L429 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:41,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:41,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1985700321, now seen corresponding path program 4 times [2020-11-09 14:28:41,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:41,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648707899] [2020-11-09 14:28:41,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:41,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:41,529 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:28:41,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648707899] [2020-11-09 14:28:41,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:41,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-09 14:28:41,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800439449] [2020-11-09 14:28:41,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 14:28:41,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:41,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 14:28:41,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-09 14:28:41,532 INFO L87 Difference]: Start difference. First operand 7869 states and 36086 transitions. Second operand 9 states. [2020-11-09 14:28:42,209 WARN L194 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-11-09 14:28:42,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:42,827 INFO L93 Difference]: Finished difference Result 26497 states and 99670 transitions. [2020-11-09 14:28:42,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:28:42,827 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-11-09 14:28:42,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:42,926 INFO L225 Difference]: With dead ends: 26497 [2020-11-09 14:28:42,926 INFO L226 Difference]: Without dead ends: 26481 [2020-11-09 14:28:42,927 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-11-09 14:28:43,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26481 states. [2020-11-09 14:28:43,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26481 to 7756. [2020-11-09 14:28:43,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7756 states. [2020-11-09 14:28:43,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7756 states to 7756 states and 35534 transitions. [2020-11-09 14:28:43,575 INFO L78 Accepts]: Start accepts. Automaton has 7756 states and 35534 transitions. Word has length 21 [2020-11-09 14:28:43,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:43,575 INFO L481 AbstractCegarLoop]: Abstraction has 7756 states and 35534 transitions. [2020-11-09 14:28:43,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 14:28:43,575 INFO L276 IsEmpty]: Start isEmpty. Operand 7756 states and 35534 transitions. [2020-11-09 14:28:43,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 14:28:43,577 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:43,577 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:43,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-11-09 14:28:43,577 INFO L429 AbstractCegarLoop]: === Iteration 15 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:43,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:43,578 INFO L82 PathProgramCache]: Analyzing trace with hash -522836100, now seen corresponding path program 1 times [2020-11-09 14:28:43,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:43,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903044371] [2020-11-09 14:28:43,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:43,632 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-09 14:28:43,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903044371] [2020-11-09 14:28:43,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:43,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 14:28:43,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680453967] [2020-11-09 14:28:43,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 14:28:43,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:43,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 14:28:43,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 14:28:43,634 INFO L87 Difference]: Start difference. First operand 7756 states and 35534 transitions. Second operand 5 states. [2020-11-09 14:28:43,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:43,835 INFO L93 Difference]: Finished difference Result 13259 states and 57521 transitions. [2020-11-09 14:28:43,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 14:28:43,836 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-11-09 14:28:43,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:43,887 INFO L225 Difference]: With dead ends: 13259 [2020-11-09 14:28:43,887 INFO L226 Difference]: Without dead ends: 13228 [2020-11-09 14:28:43,888 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 [2020-11-09 14:28:43,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13228 states. [2020-11-09 14:28:44,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13228 to 9263. [2020-11-09 14:28:44,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9263 states. [2020-11-09 14:28:44,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9263 states to 9263 states and 42388 transitions. [2020-11-09 14:28:44,457 INFO L78 Accepts]: Start accepts. Automaton has 9263 states and 42388 transitions. Word has length 21 [2020-11-09 14:28:44,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:44,458 INFO L481 AbstractCegarLoop]: Abstraction has 9263 states and 42388 transitions. [2020-11-09 14:28:44,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 14:28:44,458 INFO L276 IsEmpty]: Start isEmpty. Operand 9263 states and 42388 transitions. [2020-11-09 14:28:44,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 14:28:44,459 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:44,459 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:44,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-11-09 14:28:44,459 INFO L429 AbstractCegarLoop]: === Iteration 16 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:44,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:44,460 INFO L82 PathProgramCache]: Analyzing trace with hash 892708447, now seen corresponding path program 5 times [2020-11-09 14:28:44,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:44,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237380743] [2020-11-09 14:28:44,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:44,548 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:28:44,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237380743] [2020-11-09 14:28:44,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:44,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-09 14:28:44,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129196778] [2020-11-09 14:28:44,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 14:28:44,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:44,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 14:28:44,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-09 14:28:44,550 INFO L87 Difference]: Start difference. First operand 9263 states and 42388 transitions. Second operand 9 states. [2020-11-09 14:28:45,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:45,855 INFO L93 Difference]: Finished difference Result 29796 states and 113861 transitions. [2020-11-09 14:28:45,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:28:45,856 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-11-09 14:28:45,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:45,962 INFO L225 Difference]: With dead ends: 29796 [2020-11-09 14:28:45,962 INFO L226 Difference]: Without dead ends: 29778 [2020-11-09 14:28:45,962 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-11-09 14:28:46,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29778 states. [2020-11-09 14:28:46,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29778 to 8972. [2020-11-09 14:28:46,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8972 states. [2020-11-09 14:28:46,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 41051 transitions. [2020-11-09 14:28:46,818 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 41051 transitions. Word has length 21 [2020-11-09 14:28:46,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:46,818 INFO L481 AbstractCegarLoop]: Abstraction has 8972 states and 41051 transitions. [2020-11-09 14:28:46,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 14:28:46,818 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 41051 transitions. [2020-11-09 14:28:46,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 14:28:46,820 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:46,820 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:46,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-11-09 14:28:46,820 INFO L429 AbstractCegarLoop]: === Iteration 17 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:46,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:46,821 INFO L82 PathProgramCache]: Analyzing trace with hash 912052447, now seen corresponding path program 6 times [2020-11-09 14:28:46,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:46,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518010554] [2020-11-09 14:28:46,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:46,909 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:28:46,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518010554] [2020-11-09 14:28:46,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:46,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-09 14:28:46,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165603716] [2020-11-09 14:28:46,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 14:28:46,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:46,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 14:28:46,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-09 14:28:46,911 INFO L87 Difference]: Start difference. First operand 8972 states and 41051 transitions. Second operand 9 states. [2020-11-09 14:28:48,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:48,111 INFO L93 Difference]: Finished difference Result 29387 states and 112119 transitions. [2020-11-09 14:28:48,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:28:48,112 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-11-09 14:28:48,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:48,477 INFO L225 Difference]: With dead ends: 29387 [2020-11-09 14:28:48,478 INFO L226 Difference]: Without dead ends: 29364 [2020-11-09 14:28:48,478 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-11-09 14:28:48,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29364 states. [2020-11-09 14:28:49,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29364 to 8573. [2020-11-09 14:28:49,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8573 states. [2020-11-09 14:28:49,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8573 states to 8573 states and 39353 transitions. [2020-11-09 14:28:49,069 INFO L78 Accepts]: Start accepts. Automaton has 8573 states and 39353 transitions. Word has length 21 [2020-11-09 14:28:49,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:49,069 INFO L481 AbstractCegarLoop]: Abstraction has 8573 states and 39353 transitions. [2020-11-09 14:28:49,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 14:28:49,069 INFO L276 IsEmpty]: Start isEmpty. Operand 8573 states and 39353 transitions. [2020-11-09 14:28:49,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-09 14:28:49,071 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:49,071 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:49,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-11-09 14:28:49,072 INFO L429 AbstractCegarLoop]: === Iteration 18 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:49,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:49,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1391110006, now seen corresponding path program 1 times [2020-11-09 14:28:49,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:49,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687472570] [2020-11-09 14:28:49,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:49,158 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:28:49,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687472570] [2020-11-09 14:28:49,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445519660] [2020-11-09 14:28:49,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:28:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:49,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-09 14:28:49,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:28:49,511 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:28:49,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:28:49,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2020-11-09 14:28:49,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379286029] [2020-11-09 14:28:49,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-09 14:28:49,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:49,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-09 14:28:49,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-11-09 14:28:49,513 INFO L87 Difference]: Start difference. First operand 8573 states and 39353 transitions. Second operand 12 states. [2020-11-09 14:28:50,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:50,138 INFO L93 Difference]: Finished difference Result 19727 states and 80274 transitions. [2020-11-09 14:28:50,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:28:50,139 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 23 [2020-11-09 14:28:50,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:50,203 INFO L225 Difference]: With dead ends: 19727 [2020-11-09 14:28:50,203 INFO L226 Difference]: Without dead ends: 19703 [2020-11-09 14:28:50,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2020-11-09 14:28:50,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19703 states. [2020-11-09 14:28:50,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19703 to 8847. [2020-11-09 14:28:50,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8847 states. [2020-11-09 14:28:50,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8847 states to 8847 states and 40495 transitions. [2020-11-09 14:28:50,819 INFO L78 Accepts]: Start accepts. Automaton has 8847 states and 40495 transitions. Word has length 23 [2020-11-09 14:28:50,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:50,819 INFO L481 AbstractCegarLoop]: Abstraction has 8847 states and 40495 transitions. [2020-11-09 14:28:50,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-09 14:28:50,819 INFO L276 IsEmpty]: Start isEmpty. Operand 8847 states and 40495 transitions. [2020-11-09 14:28:50,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-09 14:28:50,822 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:50,822 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:51,023 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2020-11-09 14:28:51,024 INFO L429 AbstractCegarLoop]: === Iteration 19 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:51,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:51,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1213836140, now seen corresponding path program 1 times [2020-11-09 14:28:51,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:51,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63546612] [2020-11-09 14:28:51,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:51,094 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:28:51,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63546612] [2020-11-09 14:28:51,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980693327] [2020-11-09 14:28:51,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:28:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:51,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-09 14:28:51,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:28:51,309 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:28:51,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:28:51,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2020-11-09 14:28:51,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181121083] [2020-11-09 14:28:51,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-09 14:28:51,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:51,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-09 14:28:51,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-11-09 14:28:51,312 INFO L87 Difference]: Start difference. First operand 8847 states and 40495 transitions. Second operand 12 states. [2020-11-09 14:28:51,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:51,974 INFO L93 Difference]: Finished difference Result 20670 states and 84217 transitions. [2020-11-09 14:28:51,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:28:51,975 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 23 [2020-11-09 14:28:51,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:52,091 INFO L225 Difference]: With dead ends: 20670 [2020-11-09 14:28:52,091 INFO L226 Difference]: Without dead ends: 20642 [2020-11-09 14:28:52,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2020-11-09 14:28:52,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20642 states. [2020-11-09 14:28:52,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20642 to 9111. [2020-11-09 14:28:52,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9111 states. [2020-11-09 14:28:52,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9111 states to 9111 states and 41667 transitions. [2020-11-09 14:28:52,884 INFO L78 Accepts]: Start accepts. Automaton has 9111 states and 41667 transitions. Word has length 23 [2020-11-09 14:28:52,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:52,884 INFO L481 AbstractCegarLoop]: Abstraction has 9111 states and 41667 transitions. [2020-11-09 14:28:52,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-09 14:28:52,885 INFO L276 IsEmpty]: Start isEmpty. Operand 9111 states and 41667 transitions. [2020-11-09 14:28:52,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-09 14:28:52,887 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:52,888 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:53,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 14:28:53,101 INFO L429 AbstractCegarLoop]: === Iteration 20 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:53,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:53,101 INFO L82 PathProgramCache]: Analyzing trace with hash 65683220, now seen corresponding path program 2 times [2020-11-09 14:28:53,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:53,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260187074] [2020-11-09 14:28:53,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:53,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:53,166 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-09 14:28:53,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260187074] [2020-11-09 14:28:53,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:53,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 14:28:53,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556535522] [2020-11-09 14:28:53,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 14:28:53,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:53,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 14:28:53,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-09 14:28:53,168 INFO L87 Difference]: Start difference. First operand 9111 states and 41667 transitions. Second operand 7 states. [2020-11-09 14:28:53,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:53,691 INFO L93 Difference]: Finished difference Result 20926 states and 85293 transitions. [2020-11-09 14:28:53,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:28:53,692 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-11-09 14:28:53,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:53,766 INFO L225 Difference]: With dead ends: 20926 [2020-11-09 14:28:53,767 INFO L226 Difference]: Without dead ends: 20889 [2020-11-09 14:28:53,767 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 [2020-11-09 14:28:54,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20889 states. [2020-11-09 14:28:54,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20889 to 9002. [2020-11-09 14:28:54,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9002 states. [2020-11-09 14:28:54,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 41147 transitions. [2020-11-09 14:28:54,419 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 41147 transitions. Word has length 23 [2020-11-09 14:28:54,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:54,420 INFO L481 AbstractCegarLoop]: Abstraction has 9002 states and 41147 transitions. [2020-11-09 14:28:54,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 14:28:54,420 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 41147 transitions. [2020-11-09 14:28:54,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-09 14:28:54,422 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:54,422 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:54,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2020-11-09 14:28:54,422 INFO L429 AbstractCegarLoop]: === Iteration 21 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:54,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:54,423 INFO L82 PathProgramCache]: Analyzing trace with hash 65703370, now seen corresponding path program 2 times [2020-11-09 14:28:54,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:54,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829371837] [2020-11-09 14:28:54,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:54,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:54,480 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-09 14:28:54,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829371837] [2020-11-09 14:28:54,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:54,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 14:28:54,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58275134] [2020-11-09 14:28:54,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 14:28:54,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:54,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 14:28:54,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-09 14:28:54,482 INFO L87 Difference]: Start difference. First operand 9002 states and 41147 transitions. Second operand 7 states. [2020-11-09 14:28:55,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:55,107 INFO L93 Difference]: Finished difference Result 20671 states and 84034 transitions. [2020-11-09 14:28:55,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:28:55,108 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-11-09 14:28:55,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:55,166 INFO L225 Difference]: With dead ends: 20671 [2020-11-09 14:28:55,166 INFO L226 Difference]: Without dead ends: 20634 [2020-11-09 14:28:55,166 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 [2020-11-09 14:28:55,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20634 states. [2020-11-09 14:28:55,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20634 to 8910. [2020-11-09 14:28:55,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8910 states. [2020-11-09 14:28:55,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8910 states to 8910 states and 40716 transitions. [2020-11-09 14:28:55,556 INFO L78 Accepts]: Start accepts. Automaton has 8910 states and 40716 transitions. Word has length 23 [2020-11-09 14:28:55,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:55,556 INFO L481 AbstractCegarLoop]: Abstraction has 8910 states and 40716 transitions. [2020-11-09 14:28:55,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 14:28:55,557 INFO L276 IsEmpty]: Start isEmpty. Operand 8910 states and 40716 transitions. [2020-11-09 14:28:55,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-09 14:28:55,559 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:55,559 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:55,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-11-09 14:28:55,559 INFO L429 AbstractCegarLoop]: === Iteration 22 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:55,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:55,560 INFO L82 PathProgramCache]: Analyzing trace with hash 65695651, now seen corresponding path program 1 times [2020-11-09 14:28:55,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:55,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835688924] [2020-11-09 14:28:55,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:55,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:55,617 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-09 14:28:55,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835688924] [2020-11-09 14:28:55,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:55,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 14:28:55,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062601836] [2020-11-09 14:28:55,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 14:28:55,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:55,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 14:28:55,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-09 14:28:55,619 INFO L87 Difference]: Start difference. First operand 8910 states and 40716 transitions. Second operand 7 states. [2020-11-09 14:28:56,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:56,241 INFO L93 Difference]: Finished difference Result 21060 states and 85755 transitions. [2020-11-09 14:28:56,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:28:56,242 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-11-09 14:28:56,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:56,311 INFO L225 Difference]: With dead ends: 21060 [2020-11-09 14:28:56,312 INFO L226 Difference]: Without dead ends: 21023 [2020-11-09 14:28:56,312 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-11-09 14:28:56,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21023 states. [2020-11-09 14:28:56,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21023 to 9327. [2020-11-09 14:28:56,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9327 states. [2020-11-09 14:28:56,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9327 states to 9327 states and 42562 transitions. [2020-11-09 14:28:56,821 INFO L78 Accepts]: Start accepts. Automaton has 9327 states and 42562 transitions. Word has length 23 [2020-11-09 14:28:56,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:56,821 INFO L481 AbstractCegarLoop]: Abstraction has 9327 states and 42562 transitions. [2020-11-09 14:28:56,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 14:28:56,821 INFO L276 IsEmpty]: Start isEmpty. Operand 9327 states and 42562 transitions. [2020-11-09 14:28:56,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-09 14:28:56,824 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:56,824 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:56,824 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-11-09 14:28:56,824 INFO L429 AbstractCegarLoop]: === Iteration 23 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:56,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:56,825 INFO L82 PathProgramCache]: Analyzing trace with hash 61469731, now seen corresponding path program 2 times [2020-11-09 14:28:56,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:56,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067707318] [2020-11-09 14:28:56,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:56,892 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-09 14:28:56,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067707318] [2020-11-09 14:28:56,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:28:56,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 14:28:56,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095993269] [2020-11-09 14:28:56,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 14:28:56,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:56,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 14:28:56,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-09 14:28:56,894 INFO L87 Difference]: Start difference. First operand 9327 states and 42562 transitions. Second operand 7 states. [2020-11-09 14:28:57,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:57,486 INFO L93 Difference]: Finished difference Result 21207 states and 86283 transitions. [2020-11-09 14:28:57,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:28:57,487 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-11-09 14:28:57,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:28:57,560 INFO L225 Difference]: With dead ends: 21207 [2020-11-09 14:28:57,560 INFO L226 Difference]: Without dead ends: 21170 [2020-11-09 14:28:57,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-11-09 14:28:57,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21170 states. [2020-11-09 14:28:57,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21170 to 9426. [2020-11-09 14:28:57,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9426 states. [2020-11-09 14:28:58,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9426 states to 9426 states and 43057 transitions. [2020-11-09 14:28:58,181 INFO L78 Accepts]: Start accepts. Automaton has 9426 states and 43057 transitions. Word has length 23 [2020-11-09 14:28:58,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:28:58,183 INFO L481 AbstractCegarLoop]: Abstraction has 9426 states and 43057 transitions. [2020-11-09 14:28:58,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 14:28:58,183 INFO L276 IsEmpty]: Start isEmpty. Operand 9426 states and 43057 transitions. [2020-11-09 14:28:58,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 14:28:58,187 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:28:58,187 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:28:58,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2020-11-09 14:28:58,188 INFO L429 AbstractCegarLoop]: === Iteration 24 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:28:58,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:28:58,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1893562914, now seen corresponding path program 1 times [2020-11-09 14:28:58,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:28:58,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707498212] [2020-11-09 14:28:58,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:28:58,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:58,295 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-09 14:28:58,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707498212] [2020-11-09 14:28:58,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285042971] [2020-11-09 14:28:58,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:28:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:28:58,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 14:28:58,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:28:58,529 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-09 14:28:58,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:28:58,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2020-11-09 14:28:58,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249161125] [2020-11-09 14:28:58,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-09 14:28:58,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:28:58,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-09 14:28:58,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-11-09 14:28:58,531 INFO L87 Difference]: Start difference. First operand 9426 states and 43057 transitions. Second operand 16 states. [2020-11-09 14:28:59,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:28:59,798 INFO L93 Difference]: Finished difference Result 30145 states and 115754 transitions. [2020-11-09 14:28:59,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:28:59,799 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 25 [2020-11-09 14:28:59,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:29:00,086 INFO L225 Difference]: With dead ends: 30145 [2020-11-09 14:29:00,086 INFO L226 Difference]: Without dead ends: 30125 [2020-11-09 14:29:00,088 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=397, Invalid=1085, Unknown=0, NotChecked=0, Total=1482 [2020-11-09 14:29:00,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30125 states. [2020-11-09 14:29:00,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30125 to 9346. [2020-11-09 14:29:00,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9346 states. [2020-11-09 14:29:00,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9346 states to 9346 states and 42602 transitions. [2020-11-09 14:29:00,615 INFO L78 Accepts]: Start accepts. Automaton has 9346 states and 42602 transitions. Word has length 25 [2020-11-09 14:29:00,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:29:00,615 INFO L481 AbstractCegarLoop]: Abstraction has 9346 states and 42602 transitions. [2020-11-09 14:29:00,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-09 14:29:00,615 INFO L276 IsEmpty]: Start isEmpty. Operand 9346 states and 42602 transitions. [2020-11-09 14:29:00,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 14:29:00,619 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:29:00,619 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:29:00,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2020-11-09 14:29:00,823 INFO L429 AbstractCegarLoop]: === Iteration 25 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:29:00,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:29:00,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1121885022, now seen corresponding path program 2 times [2020-11-09 14:29:00,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:29:00,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675336788] [2020-11-09 14:29:00,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:29:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:00,902 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:29:00,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675336788] [2020-11-09 14:29:00,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376799585] [2020-11-09 14:29:00,902 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:29:00,989 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 14:29:00,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 14:29:00,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 14:29:00,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:29:01,241 WARN L194 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-11-09 14:29:01,284 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:29:01,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:29:01,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2020-11-09 14:29:01,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050059271] [2020-11-09 14:29:01,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-09 14:29:01,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:29:01,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-09 14:29:01,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-11-09 14:29:01,286 INFO L87 Difference]: Start difference. First operand 9346 states and 42602 transitions. Second operand 16 states. [2020-11-09 14:29:02,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:29:02,626 INFO L93 Difference]: Finished difference Result 29656 states and 113703 transitions. [2020-11-09 14:29:02,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:29:02,626 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 25 [2020-11-09 14:29:02,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:29:02,708 INFO L225 Difference]: With dead ends: 29656 [2020-11-09 14:29:02,709 INFO L226 Difference]: Without dead ends: 29634 [2020-11-09 14:29:02,709 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=397, Invalid=1085, Unknown=0, NotChecked=0, Total=1482 [2020-11-09 14:29:02,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29634 states. [2020-11-09 14:29:03,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29634 to 9343. [2020-11-09 14:29:03,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9343 states. [2020-11-09 14:29:03,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9343 states to 9343 states and 42547 transitions. [2020-11-09 14:29:03,446 INFO L78 Accepts]: Start accepts. Automaton has 9343 states and 42547 transitions. Word has length 25 [2020-11-09 14:29:03,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:29:03,447 INFO L481 AbstractCegarLoop]: Abstraction has 9343 states and 42547 transitions. [2020-11-09 14:29:03,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-09 14:29:03,447 INFO L276 IsEmpty]: Start isEmpty. Operand 9343 states and 42547 transitions. [2020-11-09 14:29:03,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 14:29:03,450 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:29:03,450 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:29:03,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2020-11-09 14:29:03,652 INFO L429 AbstractCegarLoop]: === Iteration 26 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:29:03,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:29:03,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1121872591, now seen corresponding path program 1 times [2020-11-09 14:29:03,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:29:03,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335380507] [2020-11-09 14:29:03,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:29:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:03,728 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:29:03,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335380507] [2020-11-09 14:29:03,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137880882] [2020-11-09 14:29:03,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:29:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:03,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 14:29:03,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:29:03,967 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:29:03,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:29:03,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2020-11-09 14:29:03,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202872289] [2020-11-09 14:29:03,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-09 14:29:03,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:29:03,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-09 14:29:03,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-11-09 14:29:03,969 INFO L87 Difference]: Start difference. First operand 9343 states and 42547 transitions. Second operand 16 states. [2020-11-09 14:29:05,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:29:05,319 INFO L93 Difference]: Finished difference Result 29316 states and 112409 transitions. [2020-11-09 14:29:05,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:29:05,319 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 25 [2020-11-09 14:29:05,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:29:05,401 INFO L225 Difference]: With dead ends: 29316 [2020-11-09 14:29:05,401 INFO L226 Difference]: Without dead ends: 29296 [2020-11-09 14:29:05,402 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=397, Invalid=1085, Unknown=0, NotChecked=0, Total=1482 [2020-11-09 14:29:05,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29296 states. [2020-11-09 14:29:06,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29296 to 9260. [2020-11-09 14:29:06,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9260 states. [2020-11-09 14:29:06,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9260 states to 9260 states and 42114 transitions. [2020-11-09 14:29:06,083 INFO L78 Accepts]: Start accepts. Automaton has 9260 states and 42114 transitions. Word has length 25 [2020-11-09 14:29:06,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:29:06,083 INFO L481 AbstractCegarLoop]: Abstraction has 9260 states and 42114 transitions. [2020-11-09 14:29:06,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-09 14:29:06,083 INFO L276 IsEmpty]: Start isEmpty. Operand 9260 states and 42114 transitions. [2020-11-09 14:29:06,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 14:29:06,087 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:29:06,087 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:29:06,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2020-11-09 14:29:06,288 INFO L429 AbstractCegarLoop]: === Iteration 27 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:29:06,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:29:06,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1126098511, now seen corresponding path program 2 times [2020-11-09 14:29:06,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:29:06,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993480149] [2020-11-09 14:29:06,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:29:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:06,371 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:29:06,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993480149] [2020-11-09 14:29:06,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109830166] [2020-11-09 14:29:06,372 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:29:06,469 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 14:29:06,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 14:29:06,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 14:29:06,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:29:06,598 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:29:06,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:29:06,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2020-11-09 14:29:06,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292659390] [2020-11-09 14:29:06,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-09 14:29:06,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:29:06,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-09 14:29:06,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-11-09 14:29:06,600 INFO L87 Difference]: Start difference. First operand 9260 states and 42114 transitions. Second operand 16 states. [2020-11-09 14:29:08,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:29:08,150 INFO L93 Difference]: Finished difference Result 29093 states and 111462 transitions. [2020-11-09 14:29:08,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:29:08,150 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 25 [2020-11-09 14:29:08,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:29:08,224 INFO L225 Difference]: With dead ends: 29093 [2020-11-09 14:29:08,224 INFO L226 Difference]: Without dead ends: 29071 [2020-11-09 14:29:08,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=397, Invalid=1085, Unknown=0, NotChecked=0, Total=1482 [2020-11-09 14:29:08,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29071 states. [2020-11-09 14:29:08,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29071 to 9176. [2020-11-09 14:29:08,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9176 states. [2020-11-09 14:29:08,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9176 states to 9176 states and 41695 transitions. [2020-11-09 14:29:08,943 INFO L78 Accepts]: Start accepts. Automaton has 9176 states and 41695 transitions. Word has length 25 [2020-11-09 14:29:08,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:29:08,943 INFO L481 AbstractCegarLoop]: Abstraction has 9176 states and 41695 transitions. [2020-11-09 14:29:08,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-09 14:29:08,943 INFO L276 IsEmpty]: Start isEmpty. Operand 9176 states and 41695 transitions. [2020-11-09 14:29:08,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 14:29:08,946 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:29:08,947 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:29:09,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 14:29:09,148 INFO L429 AbstractCegarLoop]: === Iteration 28 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:29:09,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:29:09,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1814954082, now seen corresponding path program 3 times [2020-11-09 14:29:09,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:29:09,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567140362] [2020-11-09 14:29:09,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:29:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:09,226 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:29:09,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567140362] [2020-11-09 14:29:09,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561176178] [2020-11-09 14:29:09,226 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:29:09,307 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-11-09 14:29:09,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 14:29:09,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 14:29:09,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:29:09,441 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:29:09,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:29:09,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2020-11-09 14:29:09,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793258906] [2020-11-09 14:29:09,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-09 14:29:09,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:29:09,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-09 14:29:09,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-11-09 14:29:09,443 INFO L87 Difference]: Start difference. First operand 9176 states and 41695 transitions. Second operand 16 states. [2020-11-09 14:29:10,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:29:10,579 INFO L93 Difference]: Finished difference Result 29030 states and 111196 transitions. [2020-11-09 14:29:10,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:29:10,580 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 25 [2020-11-09 14:29:10,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:29:10,911 INFO L225 Difference]: With dead ends: 29030 [2020-11-09 14:29:10,912 INFO L226 Difference]: Without dead ends: 29010 [2020-11-09 14:29:10,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=397, Invalid=1085, Unknown=0, NotChecked=0, Total=1482 [2020-11-09 14:29:11,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29010 states. [2020-11-09 14:29:11,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29010 to 9004. [2020-11-09 14:29:11,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9004 states. [2020-11-09 14:29:11,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9004 states to 9004 states and 40905 transitions. [2020-11-09 14:29:11,412 INFO L78 Accepts]: Start accepts. Automaton has 9004 states and 40905 transitions. Word has length 25 [2020-11-09 14:29:11,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:29:11,412 INFO L481 AbstractCegarLoop]: Abstraction has 9004 states and 40905 transitions. [2020-11-09 14:29:11,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-09 14:29:11,412 INFO L276 IsEmpty]: Start isEmpty. Operand 9004 states and 40905 transitions. [2020-11-09 14:29:11,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 14:29:11,416 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:29:11,416 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:29:11,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2020-11-09 14:29:11,617 INFO L429 AbstractCegarLoop]: === Iteration 29 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:29:11,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:29:11,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1734595810, now seen corresponding path program 4 times [2020-11-09 14:29:11,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:29:11,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987848993] [2020-11-09 14:29:11,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:29:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:11,689 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:29:11,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987848993] [2020-11-09 14:29:11,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051730503] [2020-11-09 14:29:11,690 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:29:11,785 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-09 14:29:11,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 14:29:11,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 14:29:11,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:29:11,909 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:29:11,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:29:11,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2020-11-09 14:29:11,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111792] [2020-11-09 14:29:11,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-09 14:29:11,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:29:11,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-09 14:29:11,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-11-09 14:29:11,912 INFO L87 Difference]: Start difference. First operand 9004 states and 40905 transitions. Second operand 16 states. [2020-11-09 14:29:13,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:29:13,168 INFO L93 Difference]: Finished difference Result 29275 states and 112216 transitions. [2020-11-09 14:29:13,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:29:13,169 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 25 [2020-11-09 14:29:13,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:29:13,243 INFO L225 Difference]: With dead ends: 29275 [2020-11-09 14:29:13,244 INFO L226 Difference]: Without dead ends: 29253 [2020-11-09 14:29:13,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=397, Invalid=1085, Unknown=0, NotChecked=0, Total=1482 [2020-11-09 14:29:13,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29253 states. [2020-11-09 14:29:13,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29253 to 9001. [2020-11-09 14:29:13,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9001 states. [2020-11-09 14:29:13,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9001 states to 9001 states and 40850 transitions. [2020-11-09 14:29:13,883 INFO L78 Accepts]: Start accepts. Automaton has 9001 states and 40850 transitions. Word has length 25 [2020-11-09 14:29:13,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:29:13,883 INFO L481 AbstractCegarLoop]: Abstraction has 9001 states and 40850 transitions. [2020-11-09 14:29:13,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-09 14:29:13,884 INFO L276 IsEmpty]: Start isEmpty. Operand 9001 states and 40850 transitions. [2020-11-09 14:29:13,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 14:29:13,887 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:29:13,887 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:29:14,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 14:29:14,088 INFO L429 AbstractCegarLoop]: === Iteration 30 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:29:14,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:29:14,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1734588091, now seen corresponding path program 1 times [2020-11-09 14:29:14,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:29:14,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053503118] [2020-11-09 14:29:14,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:29:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:14,163 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:29:14,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053503118] [2020-11-09 14:29:14,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418416489] [2020-11-09 14:29:14,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:29:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:14,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 14:29:14,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:29:14,389 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:29:14,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:29:14,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2020-11-09 14:29:14,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323057894] [2020-11-09 14:29:14,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-09 14:29:14,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:29:14,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-09 14:29:14,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-11-09 14:29:14,391 INFO L87 Difference]: Start difference. First operand 9001 states and 40850 transitions. Second operand 16 states. [2020-11-09 14:29:15,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:29:15,865 INFO L93 Difference]: Finished difference Result 29105 states and 111801 transitions. [2020-11-09 14:29:15,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:29:15,866 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 25 [2020-11-09 14:29:15,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:29:15,947 INFO L225 Difference]: With dead ends: 29105 [2020-11-09 14:29:15,948 INFO L226 Difference]: Without dead ends: 29085 [2020-11-09 14:29:15,948 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=397, Invalid=1085, Unknown=0, NotChecked=0, Total=1482 [2020-11-09 14:29:16,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29085 states. [2020-11-09 14:29:16,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29085 to 8951. [2020-11-09 14:29:16,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8951 states. [2020-11-09 14:29:16,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8951 states to 8951 states and 40581 transitions. [2020-11-09 14:29:16,685 INFO L78 Accepts]: Start accepts. Automaton has 8951 states and 40581 transitions. Word has length 25 [2020-11-09 14:29:16,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:29:16,686 INFO L481 AbstractCegarLoop]: Abstraction has 8951 states and 40581 transitions. [2020-11-09 14:29:16,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-09 14:29:16,686 INFO L276 IsEmpty]: Start isEmpty. Operand 8951 states and 40581 transitions. [2020-11-09 14:29:16,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 14:29:16,689 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:29:16,690 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:29:16,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 14:29:16,893 INFO L429 AbstractCegarLoop]: === Iteration 31 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:29:16,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:29:16,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1730362171, now seen corresponding path program 2 times [2020-11-09 14:29:16,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:29:16,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074028608] [2020-11-09 14:29:16,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:29:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:16,986 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:29:16,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074028608] [2020-11-09 14:29:16,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492975408] [2020-11-09 14:29:16,987 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:29:17,089 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 14:29:17,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 14:29:17,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 14:29:17,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:29:17,216 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:29:17,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:29:17,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2020-11-09 14:29:17,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78875200] [2020-11-09 14:29:17,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-09 14:29:17,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:29:17,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-09 14:29:17,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-11-09 14:29:17,218 INFO L87 Difference]: Start difference. First operand 8951 states and 40581 transitions. Second operand 16 states. [2020-11-09 14:29:18,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:29:18,796 INFO L93 Difference]: Finished difference Result 28806 states and 110558 transitions. [2020-11-09 14:29:18,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:29:18,798 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 25 [2020-11-09 14:29:18,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:29:18,886 INFO L225 Difference]: With dead ends: 28806 [2020-11-09 14:29:18,887 INFO L226 Difference]: Without dead ends: 28779 [2020-11-09 14:29:18,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=397, Invalid=1085, Unknown=0, NotChecked=0, Total=1482 [2020-11-09 14:29:19,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28779 states. [2020-11-09 14:29:19,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28779 to 8841. [2020-11-09 14:29:19,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8841 states. [2020-11-09 14:29:19,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8841 states to 8841 states and 40058 transitions. [2020-11-09 14:29:19,340 INFO L78 Accepts]: Start accepts. Automaton has 8841 states and 40058 transitions. Word has length 25 [2020-11-09 14:29:19,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:29:19,340 INFO L481 AbstractCegarLoop]: Abstraction has 8841 states and 40058 transitions. [2020-11-09 14:29:19,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-09 14:29:19,340 INFO L276 IsEmpty]: Start isEmpty. Operand 8841 states and 40058 transitions. [2020-11-09 14:29:19,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 14:29:19,344 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:29:19,344 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:29:19,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2020-11-09 14:29:19,545 INFO L429 AbstractCegarLoop]: === Iteration 32 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:29:19,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:29:19,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1302913182, now seen corresponding path program 5 times [2020-11-09 14:29:19,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:29:19,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357349453] [2020-11-09 14:29:19,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:29:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:19,619 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-09 14:29:19,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357349453] [2020-11-09 14:29:19,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:29:19,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-09 14:29:19,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707531362] [2020-11-09 14:29:19,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 14:29:19,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:29:19,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 14:29:19,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-09 14:29:19,621 INFO L87 Difference]: Start difference. First operand 8841 states and 40058 transitions. Second operand 9 states. [2020-11-09 14:29:20,126 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-11-09 14:29:20,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:29:20,902 INFO L93 Difference]: Finished difference Result 28597 states and 109522 transitions. [2020-11-09 14:29:20,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:29:20,902 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-11-09 14:29:20,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:29:20,980 INFO L225 Difference]: With dead ends: 28597 [2020-11-09 14:29:20,980 INFO L226 Difference]: Without dead ends: 28577 [2020-11-09 14:29:20,980 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-11-09 14:29:21,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28577 states. [2020-11-09 14:29:21,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28577 to 8616. [2020-11-09 14:29:21,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8616 states. [2020-11-09 14:29:21,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8616 states to 8616 states and 39029 transitions. [2020-11-09 14:29:21,619 INFO L78 Accepts]: Start accepts. Automaton has 8616 states and 39029 transitions. Word has length 25 [2020-11-09 14:29:21,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:29:21,619 INFO L481 AbstractCegarLoop]: Abstraction has 8616 states and 39029 transitions. [2020-11-09 14:29:21,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 14:29:21,619 INFO L276 IsEmpty]: Start isEmpty. Operand 8616 states and 39029 transitions. [2020-11-09 14:29:21,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 14:29:21,622 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:29:21,622 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:29:21,623 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2020-11-09 14:29:21,623 INFO L429 AbstractCegarLoop]: === Iteration 33 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:29:21,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:29:21,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1302920901, now seen corresponding path program 3 times [2020-11-09 14:29:21,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:29:21,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200648471] [2020-11-09 14:29:21,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:29:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:21,709 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-09 14:29:21,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200648471] [2020-11-09 14:29:21,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:29:21,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-09 14:29:21,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685575215] [2020-11-09 14:29:21,710 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 14:29:21,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:29:21,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 14:29:21,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-09 14:29:21,711 INFO L87 Difference]: Start difference. First operand 8616 states and 39029 transitions. Second operand 9 states. [2020-11-09 14:29:22,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:29:22,852 INFO L93 Difference]: Finished difference Result 28374 states and 108800 transitions. [2020-11-09 14:29:22,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:29:22,853 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-11-09 14:29:22,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:29:22,943 INFO L225 Difference]: With dead ends: 28374 [2020-11-09 14:29:22,943 INFO L226 Difference]: Without dead ends: 28354 [2020-11-09 14:29:22,943 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-11-09 14:29:23,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28354 states. [2020-11-09 14:29:23,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28354 to 8466. [2020-11-09 14:29:23,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8466 states. [2020-11-09 14:29:23,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8466 states to 8466 states and 38348 transitions. [2020-11-09 14:29:23,673 INFO L78 Accepts]: Start accepts. Automaton has 8466 states and 38348 transitions. Word has length 25 [2020-11-09 14:29:23,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:29:23,673 INFO L481 AbstractCegarLoop]: Abstraction has 8466 states and 38348 transitions. [2020-11-09 14:29:23,673 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 14:29:23,673 INFO L276 IsEmpty]: Start isEmpty. Operand 8466 states and 38348 transitions. [2020-11-09 14:29:23,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 14:29:23,677 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:29:23,677 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:29:23,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2020-11-09 14:29:23,677 INFO L429 AbstractCegarLoop]: === Iteration 34 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:29:23,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:29:23,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1283569182, now seen corresponding path program 6 times [2020-11-09 14:29:23,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:29:23,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654936873] [2020-11-09 14:29:23,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:29:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:23,770 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-09 14:29:23,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654936873] [2020-11-09 14:29:23,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:29:23,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-09 14:29:23,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087290991] [2020-11-09 14:29:23,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 14:29:23,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:29:23,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 14:29:23,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-09 14:29:23,772 INFO L87 Difference]: Start difference. First operand 8466 states and 38348 transitions. Second operand 9 states. [2020-11-09 14:29:25,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:29:25,105 INFO L93 Difference]: Finished difference Result 27919 states and 106695 transitions. [2020-11-09 14:29:25,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:29:25,106 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-11-09 14:29:25,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:29:25,194 INFO L225 Difference]: With dead ends: 27919 [2020-11-09 14:29:25,194 INFO L226 Difference]: Without dead ends: 27892 [2020-11-09 14:29:25,194 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-11-09 14:29:25,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27892 states. [2020-11-09 14:29:25,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27892 to 8151. [2020-11-09 14:29:25,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8151 states. [2020-11-09 14:29:25,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8151 states to 8151 states and 36997 transitions. [2020-11-09 14:29:25,908 INFO L78 Accepts]: Start accepts. Automaton has 8151 states and 36997 transitions. Word has length 25 [2020-11-09 14:29:25,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:29:25,908 INFO L481 AbstractCegarLoop]: Abstraction has 8151 states and 36997 transitions. [2020-11-09 14:29:25,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 14:29:25,908 INFO L276 IsEmpty]: Start isEmpty. Operand 8151 states and 36997 transitions. [2020-11-09 14:29:25,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 14:29:25,912 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:29:25,912 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:29:25,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2020-11-09 14:29:25,913 INFO L429 AbstractCegarLoop]: === Iteration 35 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:29:25,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:29:25,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1283556751, now seen corresponding path program 3 times [2020-11-09 14:29:25,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:29:25,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367373905] [2020-11-09 14:29:25,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:29:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:26,036 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-09 14:29:26,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367373905] [2020-11-09 14:29:26,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:29:26,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-09 14:29:26,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027021776] [2020-11-09 14:29:26,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 14:29:26,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:29:26,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 14:29:26,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-09 14:29:26,037 INFO L87 Difference]: Start difference. First operand 8151 states and 36997 transitions. Second operand 9 states. [2020-11-09 14:29:27,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:29:27,237 INFO L93 Difference]: Finished difference Result 27732 states and 106194 transitions. [2020-11-09 14:29:27,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:29:27,238 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-11-09 14:29:27,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:29:27,313 INFO L225 Difference]: With dead ends: 27732 [2020-11-09 14:29:27,313 INFO L226 Difference]: Without dead ends: 27712 [2020-11-09 14:29:27,313 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-11-09 14:29:27,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27712 states. [2020-11-09 14:29:27,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27712 to 8053. [2020-11-09 14:29:27,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8053 states. [2020-11-09 14:29:27,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8053 states to 8053 states and 36561 transitions. [2020-11-09 14:29:27,949 INFO L78 Accepts]: Start accepts. Automaton has 8053 states and 36561 transitions. Word has length 25 [2020-11-09 14:29:27,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:29:27,949 INFO L481 AbstractCegarLoop]: Abstraction has 8053 states and 36561 transitions. [2020-11-09 14:29:27,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 14:29:27,950 INFO L276 IsEmpty]: Start isEmpty. Operand 8053 states and 36561 transitions. [2020-11-09 14:29:27,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 14:29:27,953 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:29:27,953 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:29:27,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2020-11-09 14:29:27,953 INFO L429 AbstractCegarLoop]: === Iteration 36 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:29:27,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:29:27,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1290987141, now seen corresponding path program 4 times [2020-11-09 14:29:27,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:29:27,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000781164] [2020-11-09 14:29:27,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:29:27,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:28,032 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-09 14:29:28,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000781164] [2020-11-09 14:29:28,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:29:28,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-09 14:29:28,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131829942] [2020-11-09 14:29:28,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 14:29:28,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:29:28,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 14:29:28,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-09 14:29:28,034 INFO L87 Difference]: Start difference. First operand 8053 states and 36561 transitions. Second operand 9 states. [2020-11-09 14:29:29,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:29:29,408 INFO L93 Difference]: Finished difference Result 27752 states and 106300 transitions. [2020-11-09 14:29:29,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:29:29,409 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-11-09 14:29:29,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:29:29,508 INFO L225 Difference]: With dead ends: 27752 [2020-11-09 14:29:29,508 INFO L226 Difference]: Without dead ends: 27725 [2020-11-09 14:29:29,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-11-09 14:29:29,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27725 states. [2020-11-09 14:29:29,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27725 to 8053. [2020-11-09 14:29:29,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8053 states. [2020-11-09 14:29:29,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8053 states to 8053 states and 36529 transitions. [2020-11-09 14:29:29,942 INFO L78 Accepts]: Start accepts. Automaton has 8053 states and 36529 transitions. Word has length 25 [2020-11-09 14:29:29,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:29:29,942 INFO L481 AbstractCegarLoop]: Abstraction has 8053 states and 36529 transitions. [2020-11-09 14:29:29,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 14:29:29,942 INFO L276 IsEmpty]: Start isEmpty. Operand 8053 states and 36529 transitions. [2020-11-09 14:29:29,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 14:29:29,946 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:29:29,946 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:29:29,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2020-11-09 14:29:29,946 INFO L429 AbstractCegarLoop]: === Iteration 37 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:29:29,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:29:29,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1290966991, now seen corresponding path program 4 times [2020-11-09 14:29:29,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:29:29,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260534339] [2020-11-09 14:29:29,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:29:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:30,023 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-09 14:29:30,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260534339] [2020-11-09 14:29:30,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:29:30,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-09 14:29:30,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630688616] [2020-11-09 14:29:30,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 14:29:30,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:29:30,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 14:29:30,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-09 14:29:30,024 INFO L87 Difference]: Start difference. First operand 8053 states and 36529 transitions. Second operand 9 states. [2020-11-09 14:29:31,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:29:31,471 INFO L93 Difference]: Finished difference Result 27429 states and 105043 transitions. [2020-11-09 14:29:31,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:29:31,471 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-11-09 14:29:31,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:29:31,545 INFO L225 Difference]: With dead ends: 27429 [2020-11-09 14:29:31,545 INFO L226 Difference]: Without dead ends: 27402 [2020-11-09 14:29:31,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-11-09 14:29:31,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27402 states. [2020-11-09 14:29:32,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27402 to 7996. [2020-11-09 14:29:32,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7996 states. [2020-11-09 14:29:32,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7996 states to 7996 states and 36246 transitions. [2020-11-09 14:29:32,181 INFO L78 Accepts]: Start accepts. Automaton has 7996 states and 36246 transitions. Word has length 25 [2020-11-09 14:29:32,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:29:32,181 INFO L481 AbstractCegarLoop]: Abstraction has 7996 states and 36246 transitions. [2020-11-09 14:29:32,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 14:29:32,181 INFO L276 IsEmpty]: Start isEmpty. Operand 7996 states and 36246 transitions. [2020-11-09 14:29:32,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 14:29:32,184 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:29:32,185 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:29:32,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2020-11-09 14:29:32,185 INFO L429 AbstractCegarLoop]: === Iteration 38 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:29:32,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:29:32,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1806156920, now seen corresponding path program 1 times [2020-11-09 14:29:32,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:29:32,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867890080] [2020-11-09 14:29:32,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:29:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:32,236 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-11-09 14:29:32,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867890080] [2020-11-09 14:29:32,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:29:32,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 14:29:32,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25370173] [2020-11-09 14:29:32,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 14:29:32,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:29:32,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 14:29:32,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 14:29:32,238 INFO L87 Difference]: Start difference. First operand 7996 states and 36246 transitions. Second operand 5 states. [2020-11-09 14:29:32,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:29:32,452 INFO L93 Difference]: Finished difference Result 13000 states and 56551 transitions. [2020-11-09 14:29:32,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 14:29:32,452 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-09 14:29:32,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:29:32,491 INFO L225 Difference]: With dead ends: 13000 [2020-11-09 14:29:32,491 INFO L226 Difference]: Without dead ends: 12968 [2020-11-09 14:29:32,492 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 [2020-11-09 14:29:32,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12968 states. [2020-11-09 14:29:32,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12968 to 9425. [2020-11-09 14:29:32,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9425 states. [2020-11-09 14:29:32,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9425 states to 9425 states and 42312 transitions. [2020-11-09 14:29:32,810 INFO L78 Accepts]: Start accepts. Automaton has 9425 states and 42312 transitions. Word has length 25 [2020-11-09 14:29:32,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:29:32,810 INFO L481 AbstractCegarLoop]: Abstraction has 9425 states and 42312 transitions. [2020-11-09 14:29:32,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 14:29:32,810 INFO L276 IsEmpty]: Start isEmpty. Operand 9425 states and 42312 transitions. [2020-11-09 14:29:32,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 14:29:32,814 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:29:32,814 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:29:32,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2020-11-09 14:29:32,814 INFO L429 AbstractCegarLoop]: === Iteration 39 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:29:32,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:29:32,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1073288645, now seen corresponding path program 5 times [2020-11-09 14:29:32,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:29:32,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678127530] [2020-11-09 14:29:32,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:29:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:32,901 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-09 14:29:32,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678127530] [2020-11-09 14:29:32,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:29:32,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-09 14:29:32,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289231915] [2020-11-09 14:29:32,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 14:29:32,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:29:32,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 14:29:32,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-09 14:29:32,902 INFO L87 Difference]: Start difference. First operand 9425 states and 42312 transitions. Second operand 9 states. [2020-11-09 14:29:34,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:29:34,141 INFO L93 Difference]: Finished difference Result 30960 states and 119709 transitions. [2020-11-09 14:29:34,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:29:34,142 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-11-09 14:29:34,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:29:34,235 INFO L225 Difference]: With dead ends: 30960 [2020-11-09 14:29:34,235 INFO L226 Difference]: Without dead ends: 30934 [2020-11-09 14:29:34,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-11-09 14:29:34,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30934 states. [2020-11-09 14:29:34,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30934 to 9270. [2020-11-09 14:29:34,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9270 states. [2020-11-09 14:29:34,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9270 states to 9270 states and 41573 transitions. [2020-11-09 14:29:34,906 INFO L78 Accepts]: Start accepts. Automaton has 9270 states and 41573 transitions. Word has length 25 [2020-11-09 14:29:34,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:29:34,907 INFO L481 AbstractCegarLoop]: Abstraction has 9270 states and 41573 transitions. [2020-11-09 14:29:34,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 14:29:34,907 INFO L276 IsEmpty]: Start isEmpty. Operand 9270 states and 41573 transitions. [2020-11-09 14:29:34,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 14:29:34,910 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:29:34,910 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:29:34,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2020-11-09 14:29:34,910 INFO L429 AbstractCegarLoop]: === Iteration 40 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:29:34,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:29:34,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1057128965, now seen corresponding path program 6 times [2020-11-09 14:29:34,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:29:34,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854744648] [2020-11-09 14:29:34,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:29:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:35,009 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-09 14:29:35,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854744648] [2020-11-09 14:29:35,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:29:35,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-09 14:29:35,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517577577] [2020-11-09 14:29:35,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 14:29:35,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:29:35,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 14:29:35,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-09 14:29:35,010 INFO L87 Difference]: Start difference. First operand 9270 states and 41573 transitions. Second operand 9 states. [2020-11-09 14:29:36,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:29:36,252 INFO L93 Difference]: Finished difference Result 30557 states and 118001 transitions. [2020-11-09 14:29:36,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:29:36,253 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-11-09 14:29:36,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:29:36,613 INFO L225 Difference]: With dead ends: 30557 [2020-11-09 14:29:36,613 INFO L226 Difference]: Without dead ends: 30524 [2020-11-09 14:29:36,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-11-09 14:29:36,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30524 states. [2020-11-09 14:29:37,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30524 to 9003. [2020-11-09 14:29:37,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9003 states. [2020-11-09 14:29:37,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9003 states to 9003 states and 40426 transitions. [2020-11-09 14:29:37,108 INFO L78 Accepts]: Start accepts. Automaton has 9003 states and 40426 transitions. Word has length 25 [2020-11-09 14:29:37,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:29:37,109 INFO L481 AbstractCegarLoop]: Abstraction has 9003 states and 40426 transitions. [2020-11-09 14:29:37,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 14:29:37,109 INFO L276 IsEmpty]: Start isEmpty. Operand 9003 states and 40426 transitions. [2020-11-09 14:29:37,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 14:29:37,112 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:29:37,112 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:29:37,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2020-11-09 14:29:37,112 INFO L429 AbstractCegarLoop]: === Iteration 41 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:29:37,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:29:37,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1057108815, now seen corresponding path program 5 times [2020-11-09 14:29:37,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:29:37,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508302277] [2020-11-09 14:29:37,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:29:37,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:37,191 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-09 14:29:37,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508302277] [2020-11-09 14:29:37,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:29:37,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-09 14:29:37,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642636380] [2020-11-09 14:29:37,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 14:29:37,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:29:37,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 14:29:37,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-09 14:29:37,193 INFO L87 Difference]: Start difference. First operand 9003 states and 40426 transitions. Second operand 9 states. [2020-11-09 14:29:38,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:29:38,506 INFO L93 Difference]: Finished difference Result 30154 states and 116397 transitions. [2020-11-09 14:29:38,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:29:38,507 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-11-09 14:29:38,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:29:38,591 INFO L225 Difference]: With dead ends: 30154 [2020-11-09 14:29:38,591 INFO L226 Difference]: Without dead ends: 30128 [2020-11-09 14:29:38,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-11-09 14:29:38,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30128 states. [2020-11-09 14:29:39,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30128 to 8901. [2020-11-09 14:29:39,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8901 states. [2020-11-09 14:29:39,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8901 states to 8901 states and 39944 transitions. [2020-11-09 14:29:39,280 INFO L78 Accepts]: Start accepts. Automaton has 8901 states and 39944 transitions. Word has length 25 [2020-11-09 14:29:39,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:29:39,280 INFO L481 AbstractCegarLoop]: Abstraction has 8901 states and 39944 transitions. [2020-11-09 14:29:39,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 14:29:39,280 INFO L276 IsEmpty]: Start isEmpty. Operand 8901 states and 39944 transitions. [2020-11-09 14:29:39,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 14:29:39,284 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:29:39,284 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:29:39,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2020-11-09 14:29:39,284 INFO L429 AbstractCegarLoop]: === Iteration 42 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:29:39,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:29:39,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1053924495, now seen corresponding path program 6 times [2020-11-09 14:29:39,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:29:39,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439290884] [2020-11-09 14:29:39,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:29:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:39,373 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-09 14:29:39,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439290884] [2020-11-09 14:29:39,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:29:39,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-09 14:29:39,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809880387] [2020-11-09 14:29:39,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 14:29:39,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:29:39,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 14:29:39,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-09 14:29:39,375 INFO L87 Difference]: Start difference. First operand 8901 states and 39944 transitions. Second operand 9 states. [2020-11-09 14:29:40,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:29:40,611 INFO L93 Difference]: Finished difference Result 29876 states and 115200 transitions. [2020-11-09 14:29:40,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:29:40,611 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-11-09 14:29:40,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:29:40,693 INFO L225 Difference]: With dead ends: 29876 [2020-11-09 14:29:40,693 INFO L226 Difference]: Without dead ends: 29843 [2020-11-09 14:29:40,693 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-11-09 14:29:41,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29843 states. [2020-11-09 14:29:41,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29843 to 8560. [2020-11-09 14:29:41,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8560 states. [2020-11-09 14:29:41,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 38495 transitions. [2020-11-09 14:29:41,397 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 38495 transitions. Word has length 25 [2020-11-09 14:29:41,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:29:41,397 INFO L481 AbstractCegarLoop]: Abstraction has 8560 states and 38495 transitions. [2020-11-09 14:29:41,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 14:29:41,397 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 38495 transitions. [2020-11-09 14:29:41,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-09 14:29:41,401 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:29:41,401 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:29:41,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2020-11-09 14:29:41,401 INFO L429 AbstractCegarLoop]: === Iteration 43 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:29:41,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:29:41,402 INFO L82 PathProgramCache]: Analyzing trace with hash 150081278, now seen corresponding path program 1 times [2020-11-09 14:29:41,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:29:41,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333612538] [2020-11-09 14:29:41,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:29:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 14:29:41,411 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 14:29:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 14:29:41,420 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 14:29:41,429 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-09 14:29:41,429 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-09 14:29:41,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2020-11-09 14:29:41,429 WARN L386 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-11-09 14:29:41,429 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-11-09 14:29:41,459 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,459 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,459 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,460 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,460 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,460 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,460 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,460 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,460 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,460 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,460 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,461 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,461 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,461 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,461 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,461 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,461 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,462 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,463 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,463 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,463 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,463 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,463 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,463 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,463 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,463 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,464 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,464 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,464 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,464 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,464 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,465 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,465 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,465 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,465 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,465 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,465 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,465 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,465 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,465 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,466 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,466 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,466 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,466 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,466 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,466 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,466 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,466 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,466 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,466 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,467 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,467 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,467 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,467 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,467 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,467 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,467 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,467 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,468 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,468 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,468 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,468 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,468 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,468 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,468 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,468 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,468 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,468 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,469 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,469 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,469 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,469 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,469 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,469 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,469 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,469 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,470 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,470 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,470 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,470 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,470 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,470 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,470 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,470 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,471 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,471 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,471 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,471 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,471 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,471 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,471 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,471 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,471 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,472 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,472 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,472 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,472 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,472 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,472 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,472 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,472 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,472 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,473 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,473 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,473 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,473 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,473 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,473 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,473 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,473 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,474 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,474 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,474 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,474 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,474 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,474 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,474 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,474 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,475 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,475 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,475 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,475 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,475 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,475 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,475 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,475 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,476 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,476 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,476 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,476 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,476 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,476 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,476 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,476 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,476 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,476 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,477 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,477 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,477 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,477 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,477 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,477 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,477 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,477 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,478 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,478 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,478 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,478 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,478 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,478 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,478 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,478 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,478 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,479 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,479 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,479 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,479 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,479 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,479 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,479 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,479 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,479 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,480 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,480 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,480 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,480 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,480 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,480 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,480 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,480 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,480 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,481 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,481 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,481 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,481 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,481 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,481 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,481 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,481 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,481 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,482 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,482 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,482 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,482 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,482 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,482 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,482 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,482 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,482 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,482 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,483 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,483 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,483 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,483 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,483 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,483 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,483 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,484 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,484 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,484 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,484 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,484 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,484 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,484 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,484 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,484 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,485 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,485 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,485 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,485 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,485 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,485 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,485 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,485 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,485 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,485 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,486 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,486 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,486 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,486 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,486 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,486 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,486 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,486 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,487 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,487 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,487 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,487 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,487 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,487 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,487 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,487 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,487 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,488 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,488 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,488 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,488 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,488 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,488 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,488 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,488 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,488 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,489 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,489 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,489 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,489 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,489 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,489 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,489 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,489 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,489 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,490 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,490 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,490 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,490 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,490 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,490 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,492 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,492 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,492 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,493 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,493 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,494 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,494 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,494 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,494 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,495 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,496 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,496 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,496 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,496 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,496 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,498 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,498 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,498 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,498 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,498 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,499 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,500 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,500 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,500 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,500 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,501 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,501 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,502 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,502 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,502 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,502 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,502 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,502 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,503 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,504 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,504 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,504 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,504 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,504 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,504 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,504 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,506 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,506 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,506 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,506 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,506 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,506 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,507 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,507 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,508 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,508 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,508 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,508 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,509 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,509 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,509 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,509 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,511 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,512 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,512 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,512 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,512 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,512 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,512 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,512 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,519 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,519 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,519 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,519 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,519 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,519 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,519 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,520 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 14:29:41,525 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 14:29:41,526 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-11-09 14:29:41,526 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 14:29:41,526 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 14:29:41,526 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 14:29:41,527 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 14:29:41,527 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 14:29:41,527 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 14:29:41,527 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 14:29:41,527 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 14:29:41,529 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 14:29:41,529 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 184 places, 172 transitions, 464 flow [2020-11-09 14:29:41,529 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 184 places, 172 transitions, 464 flow [2020-11-09 14:29:41,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 184 places, 172 transitions, 464 flow [2020-11-09 14:29:41,562 INFO L129 PetriNetUnfolder]: 10/182 cut-off events. [2020-11-09 14:29:41,562 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-11-09 14:29:41,566 INFO L84 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 182 events. 10/182 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 320 event pairs, 0 based on Foata normal form. 0/164 useless extension candidates. Maximal degree in co-relation 217. Up to 14 conditions per place. [2020-11-09 14:29:41,573 INFO L116 LiptonReduction]: Number of co-enabled transitions 3372 [2020-11-09 14:29:42,371 WARN L194 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2020-11-09 14:29:46,368 WARN L194 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2020-11-09 14:29:46,650 WARN L194 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2020-11-09 14:29:47,675 WARN L194 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-11-09 14:29:47,832 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-11-09 14:29:48,068 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2020-11-09 14:29:48,326 WARN L194 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 67 [2020-11-09 14:29:48,783 WARN L194 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-11-09 14:29:48,943 WARN L194 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-09 14:29:49,316 WARN L194 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 99 [2020-11-09 14:29:49,501 WARN L194 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-09 14:29:49,527 INFO L131 LiptonReduction]: Checked pairs total: 5911 [2020-11-09 14:29:49,527 INFO L133 LiptonReduction]: Total number of compositions: 191 [2020-11-09 14:29:49,528 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 45 transitions, 210 flow [2020-11-09 14:29:51,252 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 18584 states. [2020-11-09 14:29:51,253 INFO L276 IsEmpty]: Start isEmpty. Operand 18584 states. [2020-11-09 14:29:51,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-09 14:29:51,253 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:29:51,253 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-09 14:29:51,253 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:29:51,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:29:51,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1689038, now seen corresponding path program 1 times [2020-11-09 14:29:51,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:29:51,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692891970] [2020-11-09 14:29:51,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:29:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:51,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:29:51,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692891970] [2020-11-09 14:29:51,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:29:51,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 14:29:51,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817616117] [2020-11-09 14:29:51,267 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 14:29:51,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:29:51,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 14:29:51,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 14:29:51,268 INFO L87 Difference]: Start difference. First operand 18584 states. Second operand 3 states. [2020-11-09 14:29:51,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:29:51,440 INFO L93 Difference]: Finished difference Result 17885 states and 92755 transitions. [2020-11-09 14:29:51,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 14:29:51,441 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-09 14:29:51,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:29:51,671 INFO L225 Difference]: With dead ends: 17885 [2020-11-09 14:29:51,672 INFO L226 Difference]: Without dead ends: 16791 [2020-11-09 14:29:51,672 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 [2020-11-09 14:29:52,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16791 states. [2020-11-09 14:29:52,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16791 to 16791. [2020-11-09 14:29:52,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16791 states. [2020-11-09 14:29:52,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16791 states to 16791 states and 86558 transitions. [2020-11-09 14:29:52,728 INFO L78 Accepts]: Start accepts. Automaton has 16791 states and 86558 transitions. Word has length 3 [2020-11-09 14:29:52,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:29:52,728 INFO L481 AbstractCegarLoop]: Abstraction has 16791 states and 86558 transitions. [2020-11-09 14:29:52,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 14:29:52,728 INFO L276 IsEmpty]: Start isEmpty. Operand 16791 states and 86558 transitions. [2020-11-09 14:29:52,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 14:29:52,728 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:29:52,728 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:29:52,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2020-11-09 14:29:52,729 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:29:52,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:29:52,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1195163712, now seen corresponding path program 1 times [2020-11-09 14:29:52,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:29:52,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425771676] [2020-11-09 14:29:52,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:29:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:52,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:29:52,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425771676] [2020-11-09 14:29:52,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:29:52,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 14:29:52,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268913994] [2020-11-09 14:29:52,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 14:29:52,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:29:52,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 14:29:52,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 14:29:52,775 INFO L87 Difference]: Start difference. First operand 16791 states and 86558 transitions. Second operand 5 states. [2020-11-09 14:29:53,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:29:53,239 INFO L93 Difference]: Finished difference Result 30985 states and 150574 transitions. [2020-11-09 14:29:53,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 14:29:53,240 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-09 14:29:53,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:29:53,396 INFO L225 Difference]: With dead ends: 30985 [2020-11-09 14:29:53,397 INFO L226 Difference]: Without dead ends: 30977 [2020-11-09 14:29:53,397 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 [2020-11-09 14:29:54,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30977 states. [2020-11-09 14:29:55,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30977 to 19868. [2020-11-09 14:29:55,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19868 states. [2020-11-09 14:29:55,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19868 states to 19868 states and 103363 transitions. [2020-11-09 14:29:55,209 INFO L78 Accepts]: Start accepts. Automaton has 19868 states and 103363 transitions. Word has length 9 [2020-11-09 14:29:55,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:29:55,209 INFO L481 AbstractCegarLoop]: Abstraction has 19868 states and 103363 transitions. [2020-11-09 14:29:55,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 14:29:55,209 INFO L276 IsEmpty]: Start isEmpty. Operand 19868 states and 103363 transitions. [2020-11-09 14:29:55,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 14:29:55,210 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:29:55,210 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:29:55,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2020-11-09 14:29:55,210 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:29:55,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:29:55,211 INFO L82 PathProgramCache]: Analyzing trace with hash 749431237, now seen corresponding path program 1 times [2020-11-09 14:29:55,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:29:55,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330456893] [2020-11-09 14:29:55,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:29:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:55,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-09 14:29:55,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330456893] [2020-11-09 14:29:55,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:29:55,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 14:29:55,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078266722] [2020-11-09 14:29:55,267 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 14:29:55,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:29:55,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 14:29:55,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 14:29:55,268 INFO L87 Difference]: Start difference. First operand 19868 states and 103363 transitions. Second operand 5 states. [2020-11-09 14:29:55,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:29:55,625 INFO L93 Difference]: Finished difference Result 36296 states and 178836 transitions. [2020-11-09 14:29:55,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 14:29:55,626 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 14:29:55,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:29:55,762 INFO L225 Difference]: With dead ends: 36296 [2020-11-09 14:29:55,762 INFO L226 Difference]: Without dead ends: 36280 [2020-11-09 14:29:55,762 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 [2020-11-09 14:29:56,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36280 states. [2020-11-09 14:29:57,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36280 to 23806. [2020-11-09 14:29:57,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23806 states. [2020-11-09 14:29:57,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23806 states to 23806 states and 125455 transitions. [2020-11-09 14:29:57,881 INFO L78 Accepts]: Start accepts. Automaton has 23806 states and 125455 transitions. Word has length 13 [2020-11-09 14:29:57,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:29:57,881 INFO L481 AbstractCegarLoop]: Abstraction has 23806 states and 125455 transitions. [2020-11-09 14:29:57,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 14:29:57,882 INFO L276 IsEmpty]: Start isEmpty. Operand 23806 states and 125455 transitions. [2020-11-09 14:29:57,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 14:29:57,882 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:29:57,882 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:29:57,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2020-11-09 14:29:57,882 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:29:57,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:29:57,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1975297452, now seen corresponding path program 1 times [2020-11-09 14:29:57,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:29:57,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867161725] [2020-11-09 14:29:57,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:29:57,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:57,932 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:29:57,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867161725] [2020-11-09 14:29:57,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370365820] [2020-11-09 14:29:57,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:29:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:29:58,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-09 14:29:58,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:29:58,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:29:58,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:29:58,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2020-11-09 14:29:58,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015699902] [2020-11-09 14:29:58,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-09 14:29:58,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:29:58,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-09 14:29:58,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-11-09 14:29:58,096 INFO L87 Difference]: Start difference. First operand 23806 states and 125455 transitions. Second operand 12 states. [2020-11-09 14:29:59,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:29:59,705 INFO L93 Difference]: Finished difference Result 56720 states and 262685 transitions. [2020-11-09 14:29:59,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:29:59,706 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2020-11-09 14:29:59,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:30:00,100 INFO L225 Difference]: With dead ends: 56720 [2020-11-09 14:30:00,100 INFO L226 Difference]: Without dead ends: 56704 [2020-11-09 14:30:00,100 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 [2020-11-09 14:30:01,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56704 states. [2020-11-09 14:30:02,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56704 to 23629. [2020-11-09 14:30:02,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23629 states. [2020-11-09 14:30:02,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23629 states to 23629 states and 124418 transitions. [2020-11-09 14:30:02,573 INFO L78 Accepts]: Start accepts. Automaton has 23629 states and 124418 transitions. Word has length 15 [2020-11-09 14:30:02,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:30:02,573 INFO L481 AbstractCegarLoop]: Abstraction has 23629 states and 124418 transitions. [2020-11-09 14:30:02,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-09 14:30:02,573 INFO L276 IsEmpty]: Start isEmpty. Operand 23629 states and 124418 transitions. [2020-11-09 14:30:02,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 14:30:02,573 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:30:02,574 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:30:02,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2020-11-09 14:30:02,775 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:30:02,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:30:02,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1351073514, now seen corresponding path program 2 times [2020-11-09 14:30:02,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:30:02,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375832726] [2020-11-09 14:30:02,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:30:02,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:30:02,843 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-09 14:30:02,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375832726] [2020-11-09 14:30:02,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:30:02,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 14:30:02,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942460683] [2020-11-09 14:30:02,844 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 14:30:02,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:30:02,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 14:30:02,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-09 14:30:02,845 INFO L87 Difference]: Start difference. First operand 23629 states and 124418 transitions. Second operand 7 states. [2020-11-09 14:30:04,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:30:04,038 INFO L93 Difference]: Finished difference Result 58078 states and 269185 transitions. [2020-11-09 14:30:04,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:30:04,039 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-11-09 14:30:04,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:30:04,367 INFO L225 Difference]: With dead ends: 58078 [2020-11-09 14:30:04,368 INFO L226 Difference]: Without dead ends: 58061 [2020-11-09 14:30:04,368 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 [2020-11-09 14:30:05,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58061 states. [2020-11-09 14:30:06,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58061 to 23109. [2020-11-09 14:30:06,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23109 states. [2020-11-09 14:30:06,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23109 states to 23109 states and 121651 transitions. [2020-11-09 14:30:06,728 INFO L78 Accepts]: Start accepts. Automaton has 23109 states and 121651 transitions. Word has length 15 [2020-11-09 14:30:06,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:30:06,728 INFO L481 AbstractCegarLoop]: Abstraction has 23109 states and 121651 transitions. [2020-11-09 14:30:06,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 14:30:06,728 INFO L276 IsEmpty]: Start isEmpty. Operand 23109 states and 121651 transitions. [2020-11-09 14:30:06,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 14:30:06,729 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:30:06,729 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:30:06,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2020-11-09 14:30:06,729 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:30:06,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:30:06,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1256878032, now seen corresponding path program 1 times [2020-11-09 14:30:06,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:30:06,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485933456] [2020-11-09 14:30:06,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:30:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:30:06,770 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:30:06,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485933456] [2020-11-09 14:30:06,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:30:06,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 14:30:06,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148659856] [2020-11-09 14:30:06,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 14:30:06,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:30:06,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 14:30:06,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 14:30:06,772 INFO L87 Difference]: Start difference. First operand 23109 states and 121651 transitions. Second operand 5 states. [2020-11-09 14:30:07,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:30:07,585 INFO L93 Difference]: Finished difference Result 41885 states and 209629 transitions. [2020-11-09 14:30:07,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 14:30:07,590 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-09 14:30:07,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:30:07,929 INFO L225 Difference]: With dead ends: 41885 [2020-11-09 14:30:07,930 INFO L226 Difference]: Without dead ends: 41856 [2020-11-09 14:30:07,930 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 [2020-11-09 14:30:08,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41856 states. [2020-11-09 14:30:09,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41856 to 28237. [2020-11-09 14:30:09,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28237 states. [2020-11-09 14:30:10,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28237 states to 28237 states and 150261 transitions. [2020-11-09 14:30:10,199 INFO L78 Accepts]: Start accepts. Automaton has 28237 states and 150261 transitions. Word has length 17 [2020-11-09 14:30:10,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:30:10,199 INFO L481 AbstractCegarLoop]: Abstraction has 28237 states and 150261 transitions. [2020-11-09 14:30:10,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 14:30:10,199 INFO L276 IsEmpty]: Start isEmpty. Operand 28237 states and 150261 transitions. [2020-11-09 14:30:10,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 14:30:10,200 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:30:10,201 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:30:10,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2020-11-09 14:30:10,201 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:30:10,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:30:10,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1122599135, now seen corresponding path program 1 times [2020-11-09 14:30:10,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:30:10,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272697348] [2020-11-09 14:30:10,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:30:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:30:10,258 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-09 14:30:10,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272697348] [2020-11-09 14:30:10,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634115440] [2020-11-09 14:30:10,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:30:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:30:10,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-09 14:30:10,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:30:10,482 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-09 14:30:10,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:30:10,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2020-11-09 14:30:10,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182590957] [2020-11-09 14:30:10,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-09 14:30:10,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:30:10,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-09 14:30:10,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-11-09 14:30:10,484 INFO L87 Difference]: Start difference. First operand 28237 states and 150261 transitions. Second operand 12 states. [2020-11-09 14:30:11,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:30:11,834 INFO L93 Difference]: Finished difference Result 66831 states and 314874 transitions. [2020-11-09 14:30:11,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:30:11,836 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 19 [2020-11-09 14:30:11,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:30:12,156 INFO L225 Difference]: With dead ends: 66831 [2020-11-09 14:30:12,156 INFO L226 Difference]: Without dead ends: 66807 [2020-11-09 14:30:12,156 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2020-11-09 14:30:13,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66807 states. [2020-11-09 14:30:14,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66807 to 28673. [2020-11-09 14:30:14,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28673 states. [2020-11-09 14:30:14,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28673 states to 28673 states and 152375 transitions. [2020-11-09 14:30:14,602 INFO L78 Accepts]: Start accepts. Automaton has 28673 states and 152375 transitions. Word has length 19 [2020-11-09 14:30:14,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:30:14,602 INFO L481 AbstractCegarLoop]: Abstraction has 28673 states and 152375 transitions. [2020-11-09 14:30:14,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-09 14:30:14,602 INFO L276 IsEmpty]: Start isEmpty. Operand 28673 states and 152375 transitions. [2020-11-09 14:30:14,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 14:30:14,603 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:30:14,603 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:30:14,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable81 [2020-11-09 14:30:14,804 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:30:14,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:30:14,805 INFO L82 PathProgramCache]: Analyzing trace with hash -30740687, now seen corresponding path program 1 times [2020-11-09 14:30:14,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:30:14,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163481343] [2020-11-09 14:30:14,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:30:14,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:30:14,855 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-09 14:30:14,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163481343] [2020-11-09 14:30:14,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900707442] [2020-11-09 14:30:14,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:30:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:30:14,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-09 14:30:14,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:30:15,036 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-09 14:30:15,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:30:15,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2020-11-09 14:30:15,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082016081] [2020-11-09 14:30:15,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-09 14:30:15,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:30:15,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-09 14:30:15,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-11-09 14:30:15,038 INFO L87 Difference]: Start difference. First operand 28673 states and 152375 transitions. Second operand 12 states. [2020-11-09 14:30:16,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:30:16,347 INFO L93 Difference]: Finished difference Result 69484 states and 328264 transitions. [2020-11-09 14:30:16,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:30:16,348 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 19 [2020-11-09 14:30:16,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:30:16,614 INFO L225 Difference]: With dead ends: 69484 [2020-11-09 14:30:16,614 INFO L226 Difference]: Without dead ends: 69451 [2020-11-09 14:30:16,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2020-11-09 14:30:18,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69451 states. [2020-11-09 14:30:19,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69451 to 28873. [2020-11-09 14:30:19,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28873 states. [2020-11-09 14:30:19,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28873 states to 28873 states and 153454 transitions. [2020-11-09 14:30:19,684 INFO L78 Accepts]: Start accepts. Automaton has 28873 states and 153454 transitions. Word has length 19 [2020-11-09 14:30:19,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:30:19,684 INFO L481 AbstractCegarLoop]: Abstraction has 28873 states and 153454 transitions. [2020-11-09 14:30:19,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-09 14:30:19,684 INFO L276 IsEmpty]: Start isEmpty. Operand 28873 states and 153454 transitions. [2020-11-09 14:30:19,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 14:30:19,685 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:30:19,685 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:30:19,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 14:30:19,887 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:30:19,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:30:19,887 INFO L82 PathProgramCache]: Analyzing trace with hash 973992033, now seen corresponding path program 2 times [2020-11-09 14:30:19,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:30:19,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849287557] [2020-11-09 14:30:19,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:30:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:30:19,948 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:30:19,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849287557] [2020-11-09 14:30:19,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:30:19,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 14:30:19,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809003548] [2020-11-09 14:30:19,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 14:30:19,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:30:19,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 14:30:19,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-09 14:30:19,950 INFO L87 Difference]: Start difference. First operand 28873 states and 153454 transitions. Second operand 7 states. [2020-11-09 14:30:21,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:30:21,282 INFO L93 Difference]: Finished difference Result 70510 states and 333491 transitions. [2020-11-09 14:30:21,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:30:21,283 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-11-09 14:30:21,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:30:21,597 INFO L225 Difference]: With dead ends: 70510 [2020-11-09 14:30:21,597 INFO L226 Difference]: Without dead ends: 70477 [2020-11-09 14:30:21,597 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 [2020-11-09 14:30:22,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70477 states. [2020-11-09 14:30:24,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70477 to 28942. [2020-11-09 14:30:24,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28942 states. [2020-11-09 14:30:24,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28942 states to 28942 states and 153921 transitions. [2020-11-09 14:30:24,165 INFO L78 Accepts]: Start accepts. Automaton has 28942 states and 153921 transitions. Word has length 19 [2020-11-09 14:30:24,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:30:24,166 INFO L481 AbstractCegarLoop]: Abstraction has 28942 states and 153921 transitions. [2020-11-09 14:30:24,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 14:30:24,166 INFO L276 IsEmpty]: Start isEmpty. Operand 28942 states and 153921 transitions. [2020-11-09 14:30:24,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 14:30:24,167 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:30:24,167 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:30:24,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2020-11-09 14:30:24,167 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:30:24,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:30:24,167 INFO L82 PathProgramCache]: Analyzing trace with hash 973976719, now seen corresponding path program 2 times [2020-11-09 14:30:24,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:30:24,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262686176] [2020-11-09 14:30:24,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:30:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:30:24,225 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 14:30:24,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262686176] [2020-11-09 14:30:24,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 14:30:24,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 14:30:24,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859244351] [2020-11-09 14:30:24,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 14:30:24,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:30:24,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 14:30:24,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-09 14:30:24,227 INFO L87 Difference]: Start difference. First operand 28942 states and 153921 transitions. Second operand 7 states. [2020-11-09 14:30:25,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:30:25,622 INFO L93 Difference]: Finished difference Result 70096 states and 331298 transitions. [2020-11-09 14:30:25,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-09 14:30:25,623 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-11-09 14:30:25,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:30:26,395 INFO L225 Difference]: With dead ends: 70096 [2020-11-09 14:30:26,398 INFO L226 Difference]: Without dead ends: 70063 [2020-11-09 14:30:26,398 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 [2020-11-09 14:30:27,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70063 states. [2020-11-09 14:30:28,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70063 to 29094. [2020-11-09 14:30:28,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29094 states. [2020-11-09 14:30:28,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29094 states to 29094 states and 154883 transitions. [2020-11-09 14:30:28,943 INFO L78 Accepts]: Start accepts. Automaton has 29094 states and 154883 transitions. Word has length 19 [2020-11-09 14:30:28,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:30:28,943 INFO L481 AbstractCegarLoop]: Abstraction has 29094 states and 154883 transitions. [2020-11-09 14:30:28,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 14:30:28,943 INFO L276 IsEmpty]: Start isEmpty. Operand 29094 states and 154883 transitions. [2020-11-09 14:30:28,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 14:30:28,944 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:30:28,944 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:30:28,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2020-11-09 14:30:28,944 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:30:28,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:30:28,945 INFO L82 PathProgramCache]: Analyzing trace with hash -223741824, now seen corresponding path program 1 times [2020-11-09 14:30:28,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:30:28,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080317614] [2020-11-09 14:30:28,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:30:28,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:30:29,019 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:30:29,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080317614] [2020-11-09 14:30:29,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476941819] [2020-11-09 14:30:29,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:30:29,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:30:29,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 14:30:29,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:30:29,238 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 14:30:29,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:30:29,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2020-11-09 14:30:29,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132672811] [2020-11-09 14:30:29,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-09 14:30:29,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:30:29,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-09 14:30:29,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-11-09 14:30:29,241 INFO L87 Difference]: Start difference. First operand 29094 states and 154883 transitions. Second operand 16 states. [2020-11-09 14:30:31,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:30:31,427 INFO L93 Difference]: Finished difference Result 100731 states and 448596 transitions. [2020-11-09 14:30:31,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:30:31,428 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2020-11-09 14:30:31,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:30:32,430 INFO L225 Difference]: With dead ends: 100731 [2020-11-09 14:30:32,430 INFO L226 Difference]: Without dead ends: 100715 [2020-11-09 14:30:32,430 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 [2020-11-09 14:30:33,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100715 states. [2020-11-09 14:30:35,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100715 to 28719. [2020-11-09 14:30:35,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28719 states. [2020-11-09 14:30:35,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28719 states to 28719 states and 152760 transitions. [2020-11-09 14:30:35,915 INFO L78 Accepts]: Start accepts. Automaton has 28719 states and 152760 transitions. Word has length 21 [2020-11-09 14:30:35,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:30:35,915 INFO L481 AbstractCegarLoop]: Abstraction has 28719 states and 152760 transitions. [2020-11-09 14:30:35,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-09 14:30:35,915 INFO L276 IsEmpty]: Start isEmpty. Operand 28719 states and 152760 transitions. [2020-11-09 14:30:35,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 14:30:35,917 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:30:35,917 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:30:36,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 14:30:36,132 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:30:36,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:30:36,133 INFO L82 PathProgramCache]: Analyzing trace with hash 780975582, now seen corresponding path program 2 times [2020-11-09 14:30:36,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:30:36,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488846459] [2020-11-09 14:30:36,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:30:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:30:36,206 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-09 14:30:36,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488846459] [2020-11-09 14:30:36,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967865591] [2020-11-09 14:30:36,207 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:30:36,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 14:30:36,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 14:30:36,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 14:30:36,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:30:36,427 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-09 14:30:36,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:30:36,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2020-11-09 14:30:36,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905716937] [2020-11-09 14:30:36,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-09 14:30:36,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:30:36,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-09 14:30:36,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-11-09 14:30:36,429 INFO L87 Difference]: Start difference. First operand 28719 states and 152760 transitions. Second operand 16 states. [2020-11-09 14:30:38,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:30:38,608 INFO L93 Difference]: Finished difference Result 99876 states and 444348 transitions. [2020-11-09 14:30:38,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:30:38,609 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2020-11-09 14:30:38,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:30:39,483 INFO L225 Difference]: With dead ends: 99876 [2020-11-09 14:30:39,483 INFO L226 Difference]: Without dead ends: 99855 [2020-11-09 14:30:39,484 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 [2020-11-09 14:30:40,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99855 states. [2020-11-09 14:30:42,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99855 to 28343. [2020-11-09 14:30:42,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28343 states. [2020-11-09 14:30:42,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28343 states to 28343 states and 150639 transitions. [2020-11-09 14:30:42,414 INFO L78 Accepts]: Start accepts. Automaton has 28343 states and 150639 transitions. Word has length 21 [2020-11-09 14:30:42,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:30:42,414 INFO L481 AbstractCegarLoop]: Abstraction has 28343 states and 150639 transitions. [2020-11-09 14:30:42,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-09 14:30:42,414 INFO L276 IsEmpty]: Start isEmpty. Operand 28343 states and 150639 transitions. [2020-11-09 14:30:42,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 14:30:42,415 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:30:42,415 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:30:42,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2020-11-09 14:30:42,617 INFO L429 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:30:42,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:30:42,618 INFO L82 PathProgramCache]: Analyzing trace with hash -141594176, now seen corresponding path program 3 times [2020-11-09 14:30:42,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:30:42,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022078576] [2020-11-09 14:30:42,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:30:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:30:42,700 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-09 14:30:42,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022078576] [2020-11-09 14:30:42,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363147209] [2020-11-09 14:30:42,700 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:30:43,139 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-11-09 14:30:43,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 14:30:43,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 14:30:43,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:30:43,379 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-09 14:30:43,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:30:43,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2020-11-09 14:30:43,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049831512] [2020-11-09 14:30:43,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-09 14:30:43,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:30:43,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-09 14:30:43,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-11-09 14:30:43,384 INFO L87 Difference]: Start difference. First operand 28343 states and 150639 transitions. Second operand 16 states. [2020-11-09 14:30:45,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:30:45,712 INFO L93 Difference]: Finished difference Result 100071 states and 445291 transitions. [2020-11-09 14:30:45,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:30:45,712 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2020-11-09 14:30:45,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:30:46,114 INFO L225 Difference]: With dead ends: 100071 [2020-11-09 14:30:46,114 INFO L226 Difference]: Without dead ends: 100055 [2020-11-09 14:30:46,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=397, Invalid=1085, Unknown=0, NotChecked=0, Total=1482 [2020-11-09 14:30:47,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100055 states. [2020-11-09 14:30:49,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100055 to 27654. [2020-11-09 14:30:49,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27654 states. [2020-11-09 14:30:49,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27654 states to 27654 states and 147080 transitions. [2020-11-09 14:30:49,490 INFO L78 Accepts]: Start accepts. Automaton has 27654 states and 147080 transitions. Word has length 21 [2020-11-09 14:30:49,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 14:30:49,491 INFO L481 AbstractCegarLoop]: Abstraction has 27654 states and 147080 transitions. [2020-11-09 14:30:49,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-09 14:30:49,491 INFO L276 IsEmpty]: Start isEmpty. Operand 27654 states and 147080 transitions. [2020-11-09 14:30:49,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 14:30:49,492 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 14:30:49,492 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 14:30:49,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 14:30:49,700 INFO L429 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 14:30:49,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 14:30:49,701 INFO L82 PathProgramCache]: Analyzing trace with hash 522984322, now seen corresponding path program 4 times [2020-11-09 14:30:49,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 14:30:49,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453642924] [2020-11-09 14:30:49,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 14:30:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 14:30:49,775 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-09 14:30:49,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453642924] [2020-11-09 14:30:49,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593260073] [2020-11-09 14:30:49,776 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/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 [2020-11-09 14:30:49,877 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-09 14:30:49,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 14:30:49,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 14:30:49,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 14:30:50,005 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-09 14:30:50,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 14:30:50,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2020-11-09 14:30:50,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161597913] [2020-11-09 14:30:50,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-09 14:30:50,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 14:30:50,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-09 14:30:50,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-11-09 14:30:50,008 INFO L87 Difference]: Start difference. First operand 27654 states and 147080 transitions. Second operand 16 states. [2020-11-09 14:30:52,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 14:30:52,727 INFO L93 Difference]: Finished difference Result 99523 states and 442763 transitions. [2020-11-09 14:30:52,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 14:30:52,729 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2020-11-09 14:30:52,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 14:30:53,291 INFO L225 Difference]: With dead ends: 99523 [2020-11-09 14:30:53,291 INFO L226 Difference]: Without dead ends: 99502 [2020-11-09 14:30:53,292 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 [2020-11-09 14:30:55,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99502 states. Received shutdown request... [2020-11-09 14:30:56,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2020-11-09 14:30:56,453 WARN L546 AbstractCegarLoop]: Verification canceled [2020-11-09 14:30:56,456 WARN L250 ceAbstractionStarter]: Timeout [2020-11-09 14:30:56,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 02:30:56 BasicIcfg [2020-11-09 14:30:56,457 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 14:30:56,457 INFO L168 Benchmark]: Toolchain (without parser) took 206090.75 ms. Allocated memory was 151.0 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 125.1 MB in the beginning and 7.3 GB in the end (delta: -7.2 GB). Peak memory consumption was 4.1 GB. Max. memory is 8.0 GB. [2020-11-09 14:30:56,458 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 124.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 14:30:56,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.95 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 128.1 MB in the end (delta: -3.6 MB). Peak memory consumption was 27.8 MB. Max. memory is 8.0 GB. [2020-11-09 14:30:56,458 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.31 ms. Allocated memory is still 151.0 MB. Free memory was 128.1 MB in the beginning and 126.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 14:30:56,458 INFO L168 Benchmark]: Boogie Preprocessor took 30.80 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 125.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 14:30:56,459 INFO L168 Benchmark]: RCFGBuilder took 716.85 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 104.6 MB in the end (delta: 20.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-11-09 14:30:56,459 INFO L168 Benchmark]: TraceAbstraction took 204487.72 ms. Allocated memory was 151.0 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 104.1 MB in the beginning and 7.3 GB in the end (delta: -7.2 GB). Peak memory consumption was 4.1 GB. Max. memory is 8.0 GB. [2020-11-09 14:30:56,461 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 124.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 748.95 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 128.1 MB in the end (delta: -3.6 MB). Peak memory consumption was 27.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 92.31 ms. Allocated memory is still 151.0 MB. Free memory was 128.1 MB in the beginning and 126.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.80 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 125.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 716.85 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 104.6 MB in the end (delta: 20.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 204487.72 ms. Allocated memory was 151.0 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 104.1 MB in the beginning and 7.3 GB in the end (delta: -7.2 GB). Peak memory consumption was 4.1 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 454 VarBasedMoverChecksPositive, 2 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 3 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 7.0s, 69 PlacesBefore, 18 PlacesAfterwards, 67 TransitionsBefore, 12 TransitionsAfterwards, 832 CoEnabledTransitionPairs, 7 FixpointIterations, 25 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 5 ConcurrentYvCompositions, 4 ChoiceCompositions, 69 TotalNumberOfCompositions, 793 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 655 VarBasedMoverChecksPositive, 10 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 25 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.2s, 92 PlacesBefore, 31 PlacesAfterwards, 88 TransitionsBefore, 21 TransitionsAfterwards, 1220 CoEnabledTransitionPairs, 6 FixpointIterations, 42 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 6 ConcurrentYvCompositions, 6 ChoiceCompositions, 86 TotalNumberOfCompositions, 1551 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 861 VarBasedMoverChecksPositive, 15 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 40 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.9s, 115 PlacesBefore, 41 PlacesAfterwards, 109 TransitionsBefore, 27 TransitionsAfterwards, 1668 CoEnabledTransitionPairs, 6 FixpointIterations, 55 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 6 ConcurrentYvCompositions, 8 ChoiceCompositions, 107 TotalNumberOfCompositions, 2216 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1162 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 64 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.6s, 138 PlacesBefore, 51 PlacesAfterwards, 130 TransitionsBefore, 33 TransitionsAfterwards, 2176 CoEnabledTransitionPairs, 6 FixpointIterations, 70 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 5 ConcurrentYvCompositions, 10 ChoiceCompositions, 134 TotalNumberOfCompositions, 3275 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1421 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 82 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.8s, 161 PlacesBefore, 61 PlacesAfterwards, 151 TransitionsBefore, 39 TransitionsAfterwards, 2744 CoEnabledTransitionPairs, 6 FixpointIterations, 89 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 17 TrivialYvCompositions, 6 ConcurrentYvCompositions, 12 ChoiceCompositions, 162 TotalNumberOfCompositions, 4200 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1751 VarBasedMoverChecksPositive, 28 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 95 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 7.9s, 184 PlacesBefore, 71 PlacesAfterwards, 172 TransitionsBefore, 45 TransitionsAfterwards, 3372 CoEnabledTransitionPairs, 6 FixpointIterations, 109 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 6 ConcurrentYvCompositions, 14 ChoiceCompositions, 191 TotalNumberOfCompositions, 5911 MoverChecksTotal - TimeoutResultAtElement [Line: 683]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 683). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 63 locations, 1 error locations. Started 6 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 203.9s, OverallIterations: 89, TraceHistogramMax: 6, AutomataDifference: 80.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 41.2s, HoareTripleCheckerStatistics: 3678 SDtfs, 17775 SDslu, 12284 SDs, 0 SdLazy, 23903 SolverSat, 1603 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 23.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1961 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 1608 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10311 ImplicationChecksByTransitivity, 22.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29094occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 62.7s AutomataMinimizationTime, 84 MinimizatonAttempts, 1159918 StatesRemovedByMinimization, 76 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 2165 NumberOfCodeBlocks, 2153 NumberOfCodeBlocksAsserted, 124 NumberOfCheckSat, 1968 ConstructedInterpolants, 0 QuantifiedInterpolants, 259092 SizeOfPredicates, 132 NumberOfNonLiveVariables, 3122 ConjunctsInSsa, 207 ConjunctsInUnsatCore, 109 InterpolantComputations, 59 PerfectInterpolantSequences, 708/1064 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown