/usr/bin/java -Xmx16000000000 -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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-New_States.epf -i ../../../trunk/examples/svcomp/pthread-atomic/dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 09:42:08,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 09:42:08,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 09:42:08,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 09:42:08,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 09:42:08,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 09:42:08,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 09:42:08,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 09:42:08,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 09:42:08,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 09:42:08,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 09:42:08,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 09:42:08,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 09:42:08,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 09:42:08,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 09:42:08,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 09:42:08,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 09:42:08,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 09:42:08,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 09:42:08,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 09:42:08,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 09:42:08,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 09:42:08,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 09:42:08,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 09:42:08,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 09:42:08,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 09:42:08,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 09:42:08,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 09:42:08,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 09:42:08,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 09:42:08,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 09:42:08,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 09:42:08,099 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 09:42:08,101 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 09:42:08,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 09:42:08,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 09:42:08,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 09:42:08,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 09:42:08,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 09:42:08,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 09:42:08,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 09:42:08,108 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-New_States.epf [2020-11-12 09:42:08,165 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 09:42:08,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 09:42:08,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 09:42:08,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 09:42:08,170 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 09:42:08,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 09:42:08,170 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 09:42:08,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 09:42:08,171 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 09:42:08,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 09:42:08,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 09:42:08,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 09:42:08,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 09:42:08,173 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 09:42:08,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 09:42:08,173 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 09:42:08,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 09:42:08,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 09:42:08,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 09:42:08,174 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 09:42:08,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 09:42:08,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 09:42:08,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 09:42:08,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 09:42:08,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 09:42:08,175 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 09:42:08,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 09:42:08,176 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 09:42:08,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 09:42:08,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 09:42:08,176 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 09:42:08,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 09:42:08,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 09:42:08,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 09:42:08,666 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 09:42:08,667 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 09:42:08,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker.i [2020-11-12 09:42:08,761 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75abd46c8/c1b6aaceaa98442f9a665e82ccad119b/FLAG6f3abe4e0 [2020-11-12 09:42:09,444 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 09:42:09,444 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i [2020-11-12 09:42:09,466 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75abd46c8/c1b6aaceaa98442f9a665e82ccad119b/FLAG6f3abe4e0 [2020-11-12 09:42:09,699 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75abd46c8/c1b6aaceaa98442f9a665e82ccad119b [2020-11-12 09:42:09,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 09:42:09,709 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 09:42:09,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 09:42:09,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 09:42:09,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 09:42:09,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:42:09" (1/1) ... [2020-11-12 09:42:09,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79a71df8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:42:09, skipping insertion in model container [2020-11-12 09:42:09,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:42:09" (1/1) ... [2020-11-12 09:42:09,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 09:42:09,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 09:42:09,948 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-11-12 09:42:10,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 09:42:10,234 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 09:42:10,270 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-11-12 09:42:10,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 09:42:10,441 INFO L208 MainTranslator]: Completed translation [2020-11-12 09:42:10,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:42:10 WrapperNode [2020-11-12 09:42:10,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 09:42:10,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 09:42:10,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 09:42:10,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 09:42:10,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:42:10" (1/1) ... [2020-11-12 09:42:10,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:42:10" (1/1) ... [2020-11-12 09:42:10,530 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 09:42:10,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 09:42:10,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 09:42:10,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 09:42:10,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:42:10" (1/1) ... [2020-11-12 09:42:10,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:42:10" (1/1) ... [2020-11-12 09:42:10,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:42:10" (1/1) ... [2020-11-12 09:42:10,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:42:10" (1/1) ... [2020-11-12 09:42:10,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:42:10" (1/1) ... [2020-11-12 09:42:10,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:42:10" (1/1) ... [2020-11-12 09:42:10,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:42:10" (1/1) ... [2020-11-12 09:42:10,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 09:42:10,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 09:42:10,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 09:42:10,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 09:42:10,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:42:10" (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 [2020-11-12 09:42:10,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-12 09:42:10,687 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-11-12 09:42:10,687 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-11-12 09:42:10,687 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-11-12 09:42:10,688 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-11-12 09:42:10,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 09:42:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 09:42:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 09:42:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 09:42:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 09:42:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 09:42:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 09:42:10,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 09:42:10,694 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 09:42:11,150 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 09:42:11,151 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-11-12 09:42:11,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:42:11 BoogieIcfgContainer [2020-11-12 09:42:11,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 09:42:11,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 09:42:11,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 09:42:11,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 09:42:11,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 09:42:09" (1/3) ... [2020-11-12 09:42:11,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12924da1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 09:42:11, skipping insertion in model container [2020-11-12 09:42:11,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:42:10" (2/3) ... [2020-11-12 09:42:11,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12924da1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 09:42:11, skipping insertion in model container [2020-11-12 09:42:11,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:42:11" (3/3) ... [2020-11-12 09:42:11,162 INFO L111 eAbstractionObserver]: Analyzing ICFG dekker.i [2020-11-12 09:42:11,177 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 09:42:11,177 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 09:42:11,181 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-12 09:42:11,182 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 09:42:11,213 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,214 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,214 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,214 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,215 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,215 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,215 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,215 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,215 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,216 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,216 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,216 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,216 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,217 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,217 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,217 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,217 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,218 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,218 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,218 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,218 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,218 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,219 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,219 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,219 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,220 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,220 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,220 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,220 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,221 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,221 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,221 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,221 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,221 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,222 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,222 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,222 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,222 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,223 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,223 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,223 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,224 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,224 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,224 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,224 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,224 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,225 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,225 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,225 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,226 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,226 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,226 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,226 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,226 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,227 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,227 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,227 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,227 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,228 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,228 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,228 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,228 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,229 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,229 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,229 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,229 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,230 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,230 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,230 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,230 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,230 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,231 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,231 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,231 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,231 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,231 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,234 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,234 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,235 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,235 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,235 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,235 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,235 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,236 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,243 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,243 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,243 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,244 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,244 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,244 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,244 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,244 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 09:42:11,264 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-11-12 09:42:11,277 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-12 09:42:11,300 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 09:42:11,300 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 09:42:11,300 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 09:42:11,300 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 09:42:11,300 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 09:42:11,301 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 09:42:11,301 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 09:42:11,301 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 09:42:11,314 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 90 places, 100 transitions, 222 flow [2020-11-12 09:42:11,427 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1681 states, 1677 states have (on average 3.069171138938581) internal successors, (5147), 1680 states have internal predecessors, (5147), 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) [2020-11-12 09:42:12,787 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 1357ms [2020-11-12 09:42:12,793 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 1681 states, 1677 states have (on average 3.069171138938581) internal successors, (5147), 1680 states have internal predecessors, (5147), 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) [2020-11-12 09:42:12,992 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 38754 states, 30562 states have (on average 1.742981480269616) internal successors, (53269), 38753 states have internal predecessors, (53269), 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) [2020-11-12 09:42:13,040 INFO L276 IsEmpty]: Start isEmpty. Operand has 38754 states, 30562 states have (on average 1.742981480269616) internal successors, (53269), 38753 states have internal predecessors, (53269), 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) [2020-11-12 09:42:13,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-12 09:42:13,048 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 09:42:13,049 INFO L494 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] [2020-11-12 09:42:13,049 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 09:42:13,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 09:42:13,056 INFO L82 PathProgramCache]: Analyzing trace with hash 2105454250, now seen corresponding path program 1 times [2020-11-12 09:42:13,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 09:42:13,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564631306] [2020-11-12 09:42:13,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 09:42:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 09:42:13,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 09:42:13,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564631306] [2020-11-12 09:42:13,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 09:42:13,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-12 09:42:13,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431972212] [2020-11-12 09:42:13,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-12 09:42:13,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 09:42:13,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-12 09:42:13,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-12 09:42:13,439 INFO L87 Difference]: Start difference. First operand has 38754 states, 30562 states have (on average 1.742981480269616) internal successors, (53269), 38753 states have internal predecessors, (53269), 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 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2020-11-12 09:42:13,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 09:42:13,518 INFO L93 Difference]: Finished difference Result 4409 states and 6115 transitions. [2020-11-12 09:42:13,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-12 09:42:13,519 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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 30 [2020-11-12 09:42:13,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 09:42:13,542 INFO L225 Difference]: With dead ends: 4409 [2020-11-12 09:42:13,543 INFO L226 Difference]: Without dead ends: 964 [2020-11-12 09:42:13,544 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-12 09:42:13,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2020-11-12 09:42:13,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 634. [2020-11-12 09:42:13,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 593 states have (on average 1.281618887015177) internal successors, (760), 633 states have internal predecessors, (760), 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) [2020-11-12 09:42:13,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 760 transitions. [2020-11-12 09:42:13,646 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 760 transitions. Word has length 30 [2020-11-12 09:42:13,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 09:42:13,647 INFO L481 AbstractCegarLoop]: Abstraction has 634 states and 760 transitions. [2020-11-12 09:42:13,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2020-11-12 09:42:13,647 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 760 transitions. [2020-11-12 09:42:13,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-12 09:42:13,649 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 09:42:13,649 INFO L494 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] [2020-11-12 09:42:13,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 09:42:13,649 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 09:42:13,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 09:42:13,650 INFO L82 PathProgramCache]: Analyzing trace with hash 2134083401, now seen corresponding path program 1 times [2020-11-12 09:42:13,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 09:42:13,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001048724] [2020-11-12 09:42:13,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 09:42:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 09:42:13,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 09:42:13,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001048724] [2020-11-12 09:42:13,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 09:42:13,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-12 09:42:13,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9652897] [2020-11-12 09:42:13,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-12 09:42:13,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 09:42:13,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-12 09:42:13,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 09:42:13,801 INFO L87 Difference]: Start difference. First operand 634 states and 760 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2020-11-12 09:42:13,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 09:42:13,835 INFO L93 Difference]: Finished difference Result 531 states and 611 transitions. [2020-11-12 09:42:13,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-12 09:42:13,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 30 [2020-11-12 09:42:13,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 09:42:13,838 INFO L225 Difference]: With dead ends: 531 [2020-11-12 09:42:13,839 INFO L226 Difference]: Without dead ends: 434 [2020-11-12 09:42:13,840 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 09:42:13,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-11-12 09:42:13,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 414. [2020-11-12 09:42:13,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 384 states have (on average 1.171875) internal successors, (450), 413 states have internal predecessors, (450), 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) [2020-11-12 09:42:13,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 450 transitions. [2020-11-12 09:42:13,893 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 450 transitions. Word has length 30 [2020-11-12 09:42:13,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 09:42:13,894 INFO L481 AbstractCegarLoop]: Abstraction has 414 states and 450 transitions. [2020-11-12 09:42:13,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2020-11-12 09:42:13,894 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 450 transitions. [2020-11-12 09:42:13,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-12 09:42:13,896 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 09:42:13,896 INFO L494 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] [2020-11-12 09:42:13,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 09:42:13,896 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 09:42:13,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 09:42:13,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1009258566, now seen corresponding path program 1 times [2020-11-12 09:42:13,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 09:42:13,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863007185] [2020-11-12 09:42:13,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 09:42:13,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 09:42:13,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 09:42:13,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863007185] [2020-11-12 09:42:13,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 09:42:13,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-12 09:42:13,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506595154] [2020-11-12 09:42:13,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-12 09:42:13,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 09:42:13,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-12 09:42:13,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 09:42:13,947 INFO L87 Difference]: Start difference. First operand 414 states and 450 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2020-11-12 09:42:13,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 09:42:13,965 INFO L93 Difference]: Finished difference Result 277 states and 287 transitions. [2020-11-12 09:42:13,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-12 09:42:13,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 33 [2020-11-12 09:42:13,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 09:42:13,967 INFO L225 Difference]: With dead ends: 277 [2020-11-12 09:42:13,967 INFO L226 Difference]: Without dead ends: 135 [2020-11-12 09:42:13,967 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 09:42:13,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-11-12 09:42:13,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 132. [2020-11-12 09:42:13,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 120 states have (on average 1.125) internal successors, (135), 131 states have internal predecessors, (135), 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) [2020-11-12 09:42:13,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 135 transitions. [2020-11-12 09:42:13,972 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 135 transitions. Word has length 33 [2020-11-12 09:42:13,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 09:42:13,972 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 135 transitions. [2020-11-12 09:42:13,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2020-11-12 09:42:13,973 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 135 transitions. [2020-11-12 09:42:13,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-12 09:42:13,974 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 09:42:13,974 INFO L494 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] [2020-11-12 09:42:13,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 09:42:13,974 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 09:42:13,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 09:42:13,975 INFO L82 PathProgramCache]: Analyzing trace with hash 934916163, now seen corresponding path program 1 times [2020-11-12 09:42:13,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 09:42:13,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111777501] [2020-11-12 09:42:13,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 09:42:13,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 09:42:14,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 09:42:14,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111777501] [2020-11-12 09:42:14,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 09:42:14,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-12 09:42:14,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867502814] [2020-11-12 09:42:14,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-12 09:42:14,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 09:42:14,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-12 09:42:14,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-12 09:42:14,037 INFO L87 Difference]: Start difference. First operand 132 states and 135 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2020-11-12 09:42:14,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 09:42:14,070 INFO L93 Difference]: Finished difference Result 130 states and 129 transitions. [2020-11-12 09:42:14,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-12 09:42:14,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 38 [2020-11-12 09:42:14,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 09:42:14,072 INFO L225 Difference]: With dead ends: 130 [2020-11-12 09:42:14,072 INFO L226 Difference]: Without dead ends: 108 [2020-11-12 09:42:14,073 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-12 09:42:14,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-11-12 09:42:14,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-11-12 09:42:14,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 96 states have (on average 1.1145833333333333) internal successors, (107), 107 states have internal predecessors, (107), 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) [2020-11-12 09:42:14,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 107 transitions. [2020-11-12 09:42:14,077 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 107 transitions. Word has length 38 [2020-11-12 09:42:14,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 09:42:14,077 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 107 transitions. [2020-11-12 09:42:14,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2020-11-12 09:42:14,078 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 107 transitions. [2020-11-12 09:42:14,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-12 09:42:14,078 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 09:42:14,079 INFO L494 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] [2020-11-12 09:42:14,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 09:42:14,079 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 09:42:14,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 09:42:14,080 INFO L82 PathProgramCache]: Analyzing trace with hash -2089704139, now seen corresponding path program 2 times [2020-11-12 09:42:14,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 09:42:14,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395843494] [2020-11-12 09:42:14,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 09:42:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 09:42:14,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 09:42:14,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395843494] [2020-11-12 09:42:14,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 09:42:14,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-12 09:42:14,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679346239] [2020-11-12 09:42:14,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-12 09:42:14,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 09:42:14,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-12 09:42:14,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-12 09:42:14,157 INFO L87 Difference]: Start difference. First operand 108 states and 107 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2020-11-12 09:42:14,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 09:42:14,171 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2020-11-12 09:42:14,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-12 09:42:14,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 38 [2020-11-12 09:42:14,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 09:42:14,172 INFO L225 Difference]: With dead ends: 35 [2020-11-12 09:42:14,172 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 09:42:14,172 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-12 09:42:14,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 09:42:14,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 09:42:14,173 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) [2020-11-12 09:42:14,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 09:42:14,173 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2020-11-12 09:42:14,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 09:42:14,174 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 09:42:14,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2020-11-12 09:42:14,174 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 09:42:14,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 09:42:14,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 09:42:14,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 09:42:14 BasicIcfg [2020-11-12 09:42:14,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 09:42:14,182 INFO L168 Benchmark]: Toolchain (without parser) took 4476.64 ms. Allocated memory was 302.0 MB in the beginning and 725.6 MB in the end (delta: 423.6 MB). Free memory was 277.2 MB in the beginning and 605.5 MB in the end (delta: -328.3 MB). Peak memory consumption was 97.9 MB. Max. memory is 16.0 GB. [2020-11-12 09:42:14,183 INFO L168 Benchmark]: CDTParser took 0.74 ms. Allocated memory is still 302.0 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 09:42:14,184 INFO L168 Benchmark]: CACSL2BoogieTranslator took 735.98 ms. Allocated memory is still 302.0 MB. Free memory was 276.6 MB in the beginning and 246.5 MB in the end (delta: 30.0 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-11-12 09:42:14,185 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.11 ms. Allocated memory is still 302.0 MB. Free memory was 246.2 MB in the beginning and 244.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 09:42:14,186 INFO L168 Benchmark]: Boogie Preprocessor took 58.26 ms. Allocated memory is still 302.0 MB. Free memory was 244.4 MB in the beginning and 243.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 09:42:14,187 INFO L168 Benchmark]: RCFGBuilder took 557.16 ms. Allocated memory is still 302.0 MB. Free memory was 243.0 MB in the beginning and 265.2 MB in the end (delta: -22.2 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.0 GB. [2020-11-12 09:42:14,188 INFO L168 Benchmark]: TraceAbstraction took 3024.91 ms. Allocated memory was 302.0 MB in the beginning and 725.6 MB in the end (delta: 423.6 MB). Free memory was 265.2 MB in the beginning and 605.5 MB in the end (delta: -340.3 MB). Peak memory consumption was 84.4 MB. Max. memory is 16.0 GB. [2020-11-12 09:42:14,192 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74 ms. Allocated memory is still 302.0 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 735.98 ms. Allocated memory is still 302.0 MB. Free memory was 276.6 MB in the beginning and 246.5 MB in the end (delta: 30.0 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 88.11 ms. Allocated memory is still 302.0 MB. Free memory was 246.2 MB in the beginning and 244.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 58.26 ms. Allocated memory is still 302.0 MB. Free memory was 244.4 MB in the beginning and 243.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 557.16 ms. Allocated memory is still 302.0 MB. Free memory was 243.0 MB in the beginning and 265.2 MB in the end (delta: -22.2 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3024.91 ms. Allocated memory was 302.0 MB in the beginning and 725.6 MB in the end (delta: 423.6 MB). Free memory was 265.2 MB in the beginning and 605.5 MB in the end (delta: -340.3 MB). Peak memory consumption was 84.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 84 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 334 SDtfs, 97 SDslu, 244 SDs, 0 SdLazy, 25 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38754occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 353 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 6454 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...