/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 08:00:46,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 08:00:46,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 08:00:46,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 08:00:46,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 08:00:46,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 08:00:46,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 08:00:46,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 08:00:46,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 08:00:46,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 08:00:46,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 08:00:46,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 08:00:46,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 08:00:46,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 08:00:46,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 08:00:46,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 08:00:46,258 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 08:00:46,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 08:00:46,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 08:00:46,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 08:00:46,275 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2021-06-05 08:00:46,310 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 08:00:46,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 08:00:46,311 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 08:00:46,311 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 08:00:46,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 08:00:46,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 08:00:46,314 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 08:00:46,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 08:00:46,314 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 08:00:46,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 08:00:46,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 08:00:46,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 08:00:46,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 08:00:46,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 08:00:46,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 08:00:46,316 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 08:00:46,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 08:00:46,316 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 08:00:46,316 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 08:00:46,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 08:00:46,316 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 08:00:46,316 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 08:00:46,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 08:00:46,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 08:00:46,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 08:00:46,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 08:00:46,317 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 08:00:46,317 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 08:00:46,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 08:00:46,317 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 08:00:46,318 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 08:00:46,318 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 08:00:46,318 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 08:00:46,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 08:00:46,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 08:00:46,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 08:00:46,806 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 08:00:46,806 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 08:00:46,807 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/peterson.i [2021-06-05 08:00:46,880 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8584c8c72/4862fa4cab794adfbbfbcbcdbb02a5ca/FLAG962ec0903 [2021-06-05 08:00:47,781 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 08:00:47,782 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i [2021-06-05 08:00:47,818 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8584c8c72/4862fa4cab794adfbbfbcbcdbb02a5ca/FLAG962ec0903 [2021-06-05 08:00:47,914 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8584c8c72/4862fa4cab794adfbbfbcbcdbb02a5ca [2021-06-05 08:00:47,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 08:00:47,918 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 08:00:47,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 08:00:47,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 08:00:47,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 08:00:47,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:00:47" (1/1) ... [2021-06-05 08:00:47,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c0e082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:47, skipping insertion in model container [2021-06-05 08:00:47,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:00:47" (1/1) ... [2021-06-05 08:00:47,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 08:00:47,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 08:00:48,194 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-05 08:00:48,337 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[30997,31010] [2021-06-05 08:00:48,348 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[31682,31695] [2021-06-05 08:00:48,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 08:00:48,362 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 08:00:48,383 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-05 08:00:48,405 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[30997,31010] [2021-06-05 08:00:48,409 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i[31682,31695] [2021-06-05 08:00:48,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 08:00:48,495 INFO L208 MainTranslator]: Completed translation [2021-06-05 08:00:48,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:48 WrapperNode [2021-06-05 08:00:48,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 08:00:48,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 08:00:48,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 08:00:48,497 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 08:00:48,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:48" (1/1) ... [2021-06-05 08:00:48,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:48" (1/1) ... [2021-06-05 08:00:48,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 08:00:48,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 08:00:48,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 08:00:48,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 08:00:48,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:48" (1/1) ... [2021-06-05 08:00:48,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:48" (1/1) ... [2021-06-05 08:00:48,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:48" (1/1) ... [2021-06-05 08:00:48,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:48" (1/1) ... [2021-06-05 08:00:48,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:48" (1/1) ... [2021-06-05 08:00:48,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:48" (1/1) ... [2021-06-05 08:00:48,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:48" (1/1) ... [2021-06-05 08:00:48,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 08:00:48,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 08:00:48,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 08:00:48,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 08:00:48,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:48" (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 [2021-06-05 08:00:48,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 08:00:48,713 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-06-05 08:00:48,713 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-06-05 08:00:48,713 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-06-05 08:00:48,713 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-06-05 08:00:48,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 08:00:48,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 08:00:48,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 08:00:48,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 08:00:48,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 08:00:48,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 08:00:48,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 08:00:48,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 08:00:48,717 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 08:00:49,167 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 08:00:49,168 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-06-05 08:00:49,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:00:49 BoogieIcfgContainer [2021-06-05 08:00:49,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 08:00:49,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 08:00:49,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 08:00:49,174 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 08:00:49,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 08:00:47" (1/3) ... [2021-06-05 08:00:49,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66dc489c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:00:49, skipping insertion in model container [2021-06-05 08:00:49,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:48" (2/3) ... [2021-06-05 08:00:49,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66dc489c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:00:49, skipping insertion in model container [2021-06-05 08:00:49,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:00:49" (3/3) ... [2021-06-05 08:00:49,177 INFO L111 eAbstractionObserver]: Analyzing ICFG peterson.i [2021-06-05 08:00:49,182 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 08:00:49,182 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 08:00:49,183 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-06-05 08:00:49,183 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 08:00:49,218 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,218 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,219 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,219 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,219 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,219 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,219 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,219 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,220 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,220 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,220 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,220 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,220 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,220 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,221 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,221 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,222 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,222 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,222 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,222 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,222 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,222 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,223 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,223 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,223 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,224 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,224 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,225 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,230 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,230 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,230 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,231 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,231 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,232 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,232 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,232 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,232 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,233 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,233 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,233 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,235 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,235 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,235 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,235 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,236 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,237 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,237 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,237 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,237 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,237 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,237 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,238 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,238 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,238 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,238 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,238 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,240 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,240 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,240 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,240 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,240 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,241 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,248 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,248 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,248 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,248 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,248 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,249 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:49,262 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-05 08:00:49,279 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-06-05 08:00:49,295 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 08:00:49,295 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 08:00:49,295 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 08:00:49,296 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 08:00:49,296 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 08:00:49,296 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 08:00:49,296 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 08:00:49,296 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 08:00:49,306 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 80 transitions, 182 flow [2021-06-05 08:00:49,389 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1244 states, 1240 states have (on average 2.8298387096774196) internal successors, (3509), 1243 states have internal predecessors, (3509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:49,394 INFO L276 IsEmpty]: Start isEmpty. Operand has 1244 states, 1240 states have (on average 2.8298387096774196) internal successors, (3509), 1243 states have internal predecessors, (3509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:49,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-06-05 08:00:49,417 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:00:49,418 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:00:49,418 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:00:49,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:00:49,423 INFO L82 PathProgramCache]: Analyzing trace with hash -11332315, now seen corresponding path program 1 times [2021-06-05 08:00:49,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:00:49,430 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986067346] [2021-06-05 08:00:49,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:00:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:00:49,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 08:00:49,649 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:00:49,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986067346] [2021-06-05 08:00:49,650 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986067346] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:00:49,650 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:00:49,650 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 08:00:49,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424642730] [2021-06-05 08:00:49,655 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-05 08:00:49,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:00:49,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-05 08:00:49,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 08:00:49,679 INFO L87 Difference]: Start difference. First operand has 1244 states, 1240 states have (on average 2.8298387096774196) internal successors, (3509), 1243 states have internal predecessors, (3509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:49,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:00:49,746 INFO L93 Difference]: Finished difference Result 1244 states and 3229 transitions. [2021-06-05 08:00:49,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-05 08:00:49,748 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-06-05 08:00:49,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:00:49,777 INFO L225 Difference]: With dead ends: 1244 [2021-06-05 08:00:49,777 INFO L226 Difference]: Without dead ends: 1147 [2021-06-05 08:00:49,778 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 08:00:49,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2021-06-05 08:00:49,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1147. [2021-06-05 08:00:49,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 1144 states have (on average 2.618006993006993) internal successors, (2995), 1146 states have internal predecessors, (2995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:49,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 2995 transitions. [2021-06-05 08:00:49,904 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 2995 transitions. Word has length 28 [2021-06-05 08:00:49,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:00:49,905 INFO L482 AbstractCegarLoop]: Abstraction has 1147 states and 2995 transitions. [2021-06-05 08:00:49,905 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:49,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 2995 transitions. [2021-06-05 08:00:49,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-06-05 08:00:49,907 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:00:49,907 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:00:49,907 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 08:00:49,907 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:00:49,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:00:49,911 INFO L82 PathProgramCache]: Analyzing trace with hash -11302524, now seen corresponding path program 1 times [2021-06-05 08:00:49,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:00:49,912 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651747467] [2021-06-05 08:00:49,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:00:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:00:50,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 08:00:50,024 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:00:50,024 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651747467] [2021-06-05 08:00:50,024 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651747467] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:00:50,025 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:00:50,025 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 08:00:50,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997268360] [2021-06-05 08:00:50,026 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 08:00:50,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:00:50,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 08:00:50,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 08:00:50,027 INFO L87 Difference]: Start difference. First operand 1147 states and 2995 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:50,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:00:50,057 INFO L93 Difference]: Finished difference Result 1151 states and 2940 transitions. [2021-06-05 08:00:50,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 08:00:50,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-06-05 08:00:50,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:00:50,068 INFO L225 Difference]: With dead ends: 1151 [2021-06-05 08:00:50,068 INFO L226 Difference]: Without dead ends: 961 [2021-06-05 08:00:50,069 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 08:00:50,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2021-06-05 08:00:50,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 904. [2021-06-05 08:00:50,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 901 states have (on average 2.5804661487236404) internal successors, (2325), 903 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:50,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 2325 transitions. [2021-06-05 08:00:50,101 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 2325 transitions. Word has length 28 [2021-06-05 08:00:50,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:00:50,101 INFO L482 AbstractCegarLoop]: Abstraction has 904 states and 2325 transitions. [2021-06-05 08:00:50,101 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:50,102 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 2325 transitions. [2021-06-05 08:00:50,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-06-05 08:00:50,104 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:00:50,104 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:00:50,104 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 08:00:50,104 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:00:50,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:00:50,105 INFO L82 PathProgramCache]: Analyzing trace with hash -679109134, now seen corresponding path program 1 times [2021-06-05 08:00:50,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:00:50,105 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520230296] [2021-06-05 08:00:50,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:00:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:00:50,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 08:00:50,154 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:00:50,154 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520230296] [2021-06-05 08:00:50,154 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520230296] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:00:50,154 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:00:50,154 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 08:00:50,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051923969] [2021-06-05 08:00:50,155 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 08:00:50,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:00:50,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 08:00:50,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 08:00:50,156 INFO L87 Difference]: Start difference. First operand 904 states and 2325 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:50,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:00:50,186 INFO L93 Difference]: Finished difference Result 827 states and 2076 transitions. [2021-06-05 08:00:50,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 08:00:50,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-06-05 08:00:50,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:00:50,190 INFO L225 Difference]: With dead ends: 827 [2021-06-05 08:00:50,190 INFO L226 Difference]: Without dead ends: 613 [2021-06-05 08:00:50,190 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 08:00:50,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2021-06-05 08:00:50,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 613. [2021-06-05 08:00:50,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 611 states have (on average 2.507364975450082) internal successors, (1532), 612 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:50,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 1532 transitions. [2021-06-05 08:00:50,209 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 1532 transitions. Word has length 34 [2021-06-05 08:00:50,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:00:50,210 INFO L482 AbstractCegarLoop]: Abstraction has 613 states and 1532 transitions. [2021-06-05 08:00:50,210 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:50,210 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 1532 transitions. [2021-06-05 08:00:50,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-05 08:00:50,212 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:00:50,212 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:00:50,212 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 08:00:50,213 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:00:50,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:00:50,213 INFO L82 PathProgramCache]: Analyzing trace with hash 960636576, now seen corresponding path program 1 times [2021-06-05 08:00:50,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:00:50,214 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908460623] [2021-06-05 08:00:50,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:00:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:00:50,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 08:00:50,321 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:00:50,321 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908460623] [2021-06-05 08:00:50,322 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908460623] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:00:50,322 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:00:50,322 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 08:00:50,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168530910] [2021-06-05 08:00:50,323 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 08:00:50,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:00:50,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 08:00:50,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-05 08:00:50,328 INFO L87 Difference]: Start difference. First operand 613 states and 1532 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:50,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:00:50,498 INFO L93 Difference]: Finished difference Result 833 states and 2137 transitions. [2021-06-05 08:00:50,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 08:00:50,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-06-05 08:00:50,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:00:50,502 INFO L225 Difference]: With dead ends: 833 [2021-06-05 08:00:50,502 INFO L226 Difference]: Without dead ends: 567 [2021-06-05 08:00:50,502 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 67.2ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-06-05 08:00:50,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2021-06-05 08:00:50,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 535. [2021-06-05 08:00:50,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 533 states have (on average 2.49718574108818) internal successors, (1331), 534 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:50,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 1331 transitions. [2021-06-05 08:00:50,521 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 1331 transitions. Word has length 41 [2021-06-05 08:00:50,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:00:50,522 INFO L482 AbstractCegarLoop]: Abstraction has 535 states and 1331 transitions. [2021-06-05 08:00:50,522 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:50,522 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 1331 transitions. [2021-06-05 08:00:50,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-05 08:00:50,524 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:00:50,524 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 08:00:50,525 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 08:00:50,525 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:00:50,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:00:50,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1044271674, now seen corresponding path program 1 times [2021-06-05 08:00:50,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:00:50,526 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693659876] [2021-06-05 08:00:50,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:00:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:00:50,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 08:00:50,629 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:00:50,629 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693659876] [2021-06-05 08:00:50,630 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693659876] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:00:50,630 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:00:50,630 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 08:00:50,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114241216] [2021-06-05 08:00:50,630 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 08:00:50,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:00:50,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 08:00:50,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-05 08:00:50,632 INFO L87 Difference]: Start difference. First operand 535 states and 1331 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:50,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:00:50,688 INFO L93 Difference]: Finished difference Result 337 states and 862 transitions. [2021-06-05 08:00:50,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 08:00:50,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-06-05 08:00:50,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:00:50,689 INFO L225 Difference]: With dead ends: 337 [2021-06-05 08:00:50,689 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 08:00:50,689 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 41.4ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 08:00:50,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 08:00:50,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 08:00:50,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:50,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 08:00:50,690 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2021-06-05 08:00:50,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:00:50,690 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 08:00:50,690 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:50,690 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 08:00:50,691 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 08:00:50,691 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 08:00:50,693 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 08:00:50,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 08:00:50 BasicIcfg [2021-06-05 08:00:50,695 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 08:00:50,696 INFO L168 Benchmark]: Toolchain (without parser) took 2777.80 ms. Allocated memory is still 331.4 MB. Free memory was 294.4 MB in the beginning and 125.5 MB in the end (delta: 168.9 MB). Peak memory consumption was 168.6 MB. Max. memory is 16.0 GB. [2021-06-05 08:00:50,696 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 331.4 MB. Free memory is still 312.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 08:00:50,697 INFO L168 Benchmark]: CACSL2BoogieTranslator took 576.91 ms. Allocated memory is still 331.4 MB. Free memory was 294.2 MB in the beginning and 294.3 MB in the end (delta: -61.3 kB). Peak memory consumption was 9.0 MB. Max. memory is 16.0 GB. [2021-06-05 08:00:50,697 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.34 ms. Allocated memory is still 331.4 MB. Free memory was 294.3 MB in the beginning and 291.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 08:00:50,698 INFO L168 Benchmark]: Boogie Preprocessor took 74.31 ms. Allocated memory is still 331.4 MB. Free memory was 291.5 MB in the beginning and 290.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 08:00:50,698 INFO L168 Benchmark]: RCFGBuilder took 544.27 ms. Allocated memory is still 331.4 MB. Free memory was 290.1 MB in the beginning and 266.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-05 08:00:50,699 INFO L168 Benchmark]: TraceAbstraction took 1523.61 ms. Allocated memory is still 331.4 MB. Free memory was 264.9 MB in the beginning and 125.5 MB in the end (delta: 139.5 MB). Peak memory consumption was 138.4 MB. Max. memory is 16.0 GB. [2021-06-05 08:00:50,701 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 331.4 MB. Free memory is still 312.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 576.91 ms. Allocated memory is still 331.4 MB. Free memory was 294.2 MB in the beginning and 294.3 MB in the end (delta: -61.3 kB). Peak memory consumption was 9.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 53.34 ms. Allocated memory is still 331.4 MB. Free memory was 294.3 MB in the beginning and 291.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 74.31 ms. Allocated memory is still 331.4 MB. Free memory was 291.5 MB in the beginning and 290.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 544.27 ms. Allocated memory is still 331.4 MB. Free memory was 290.1 MB in the beginning and 266.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1523.61 ms. Allocated memory is still 331.4 MB. Free memory was 264.9 MB in the beginning and 125.5 MB in the end (delta: 139.5 MB). Peak memory consumption was 138.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 753]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 725]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 107 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1397.7ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 35.4ms, AutomataDifference: 438.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 93.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 405 SDtfs, 198 SDslu, 496 SDs, 0 SdLazy, 117 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 127.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 124.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1244occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 182.6ms AutomataMinimizationTime, 5 MinimizatonAttempts, 89 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 31.7ms SsaConstructionTime, 124.1ms SatisfiabilityAnalysisTime, 323.9ms InterpolantComputationTime, 172 NumberOfCodeBlocks, 172 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 167 ConstructedInterpolants, 0 QuantifiedInterpolants, 255 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...