/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-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 21:19:57,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 21:19:57,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 21:19:57,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 21:19:57,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 21:19:57,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 21:19:57,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 21:19:57,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 21:19:57,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 21:19:57,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 21:19:57,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 21:19:57,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 21:19:57,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 21:19:57,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 21:19:57,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 21:19:57,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 21:19:57,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 21:19:57,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 21:19:57,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 21:19:57,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 21:19:57,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 21:19:57,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 21:19:57,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 21:19:57,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 21:19:57,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-17 21:19:57,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-17 21:19:57,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-17 21:19:57,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-17 21:19:57,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-17 21:19:57,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-17 21:19:57,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 21:19:57,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 21:19:57,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 21:19:57,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 21:19:57,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 21:19:57,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 21:19:57,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 21:19:57,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 21:19:57,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 21:19:57,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 21:19:57,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 21:19:57,486 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-keepdead.epf [2020-12-17 21:19:57,550 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 21:19:57,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 21:19:57,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 21:19:57,556 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 21:19:57,556 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 21:19:57,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 21:19:57,557 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 21:19:57,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 21:19:57,557 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 21:19:57,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 21:19:57,559 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 21:19:57,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 21:19:57,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 21:19:57,560 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 21:19:57,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 21:19:57,561 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 21:19:57,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 21:19:57,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 21:19:57,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 21:19:57,562 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 21:19:57,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 21:19:57,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 21:19:57,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 21:19:57,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 21:19:57,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 21:19:57,564 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 21:19:57,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 21:19:57,564 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 21:19:57,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 21:19:57,565 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-17 21:19:57,565 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 21:19:57,566 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 21:19:57,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 21:19:58,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 21:19:58,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 21:19:58,023 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 21:19:58,024 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 21:19:58,026 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i [2020-12-17 21:19:58,120 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45a233531/7cabfb85c809490a8f572292661a3356/FLAG76541a759 [2020-12-17 21:19:58,859 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 21:19:58,860 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i [2020-12-17 21:19:58,881 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45a233531/7cabfb85c809490a8f572292661a3356/FLAG76541a759 [2020-12-17 21:19:59,174 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45a233531/7cabfb85c809490a8f572292661a3356 [2020-12-17 21:19:59,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 21:19:59,180 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 21:19:59,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 21:19:59,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 21:19:59,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 21:19:59,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 09:19:59" (1/1) ... [2020-12-17 21:19:59,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1953ee6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:19:59, skipping insertion in model container [2020-12-17 21:19:59,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 09:19:59" (1/1) ... [2020-12-17 21:19:59,203 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 21:19:59,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 21:19:59,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 21:19:59,710 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 21:19:59,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 21:19:59,907 INFO L208 MainTranslator]: Completed translation [2020-12-17 21:19:59,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:19:59 WrapperNode [2020-12-17 21:19:59,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 21:19:59,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 21:19:59,911 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 21:19:59,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 21:19:59,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:19:59" (1/1) ... [2020-12-17 21:19:59,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:19:59" (1/1) ... [2020-12-17 21:19:59,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 21:19:59,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 21:19:59,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 21:19:59,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 21:19:59,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:19:59" (1/1) ... [2020-12-17 21:19:59,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:19:59" (1/1) ... [2020-12-17 21:19:59,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:19:59" (1/1) ... [2020-12-17 21:19:59,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:19:59" (1/1) ... [2020-12-17 21:19:59,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:19:59" (1/1) ... [2020-12-17 21:19:59,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:19:59" (1/1) ... [2020-12-17 21:20:00,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:19:59" (1/1) ... [2020-12-17 21:20:00,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 21:20:00,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 21:20:00,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 21:20:00,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 21:20:00,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:19:59" (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 [2020-12-17 21:20:00,142 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-12-17 21:20:00,143 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-12-17 21:20:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 21:20:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 21:20:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 21:20:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 21:20:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 21:20:00,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 21:20:00,146 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-17 21:20:00,548 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 21:20:00,548 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-12-17 21:20:00,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 09:20:00 BoogieIcfgContainer [2020-12-17 21:20:00,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 21:20:00,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 21:20:00,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 21:20:00,556 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 21:20:00,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 09:19:59" (1/3) ... [2020-12-17 21:20:00,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57979183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 09:20:00, skipping insertion in model container [2020-12-17 21:20:00,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:19:59" (2/3) ... [2020-12-17 21:20:00,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57979183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 09:20:00, skipping insertion in model container [2020-12-17 21:20:00,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 09:20:00" (3/3) ... [2020-12-17 21:20:00,559 INFO L111 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i [2020-12-17 21:20:00,576 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 21:20:00,576 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 21:20:00,580 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-17 21:20:00,581 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 21:20:00,614 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,614 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,615 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,615 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,616 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,616 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,616 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,616 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,618 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,618 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,618 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,619 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,619 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,622 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,622 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,623 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 21:20:00,631 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-17 21:20:00,644 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-17 21:20:00,668 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 21:20:00,668 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 21:20:00,668 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 21:20:00,668 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 21:20:00,669 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 21:20:00,669 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 21:20:00,669 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 21:20:00,669 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 21:20:00,682 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 74 places, 96 transitions, 197 flow [2020-12-17 21:20:00,745 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 774 states, 770 states have (on average 2.8636363636363638) internal successors, (2205), 773 states have internal predecessors, (2205), 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) [2020-12-17 21:20:00,751 INFO L276 IsEmpty]: Start isEmpty. Operand has 774 states, 770 states have (on average 2.8636363636363638) internal successors, (2205), 773 states have internal predecessors, (2205), 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) [2020-12-17 21:20:00,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-17 21:20:00,773 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 21:20:00,775 INFO L504 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] [2020-12-17 21:20:00,775 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 21:20:00,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 21:20:00,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1965527308, now seen corresponding path program 1 times [2020-12-17 21:20:00,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 21:20:00,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955463351] [2020-12-17 21:20:00,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 21:20:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 21:20:01,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 21:20:01,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955463351] [2020-12-17 21:20:01,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 21:20:01,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-17 21:20:01,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275724146] [2020-12-17 21:20:01,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-17 21:20:01,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 21:20:01,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-17 21:20:01,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-17 21:20:01,083 INFO L87 Difference]: Start difference. First operand has 774 states, 770 states have (on average 2.8636363636363638) internal successors, (2205), 773 states have internal predecessors, (2205), 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) [2020-12-17 21:20:01,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 21:20:01,127 INFO L93 Difference]: Finished difference Result 411 states and 1007 transitions. [2020-12-17 21:20:01,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-17 21:20:01,128 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 [2020-12-17 21:20:01,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 21:20:01,131 INFO L763 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 [2020-12-17 21:20:01,131 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 1007 transitions. Word has length 28 [2020-12-17 21:20:01,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 21:20:01,132 INFO L481 AbstractCegarLoop]: Abstraction has 411 states and 1007 transitions. [2020-12-17 21:20:01,132 INFO L482 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) [2020-12-17 21:20:01,133 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 1007 transitions. [2020-12-17 21:20:01,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-17 21:20:01,136 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 21:20:01,136 INFO L504 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] [2020-12-17 21:20:01,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 21:20:01,137 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 21:20:01,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 21:20:01,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1797642954, now seen corresponding path program 1 times [2020-12-17 21:20:01,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 21:20:01,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842989442] [2020-12-17 21:20:01,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 21:20:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 21:20:01,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 21:20:01,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842989442] [2020-12-17 21:20:01,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 21:20:01,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-17 21:20:01,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057038196] [2020-12-17 21:20:01,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-17 21:20:01,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 21:20:01,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-17 21:20:01,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-17 21:20:01,241 INFO L87 Difference]: Start difference. First operand 411 states and 1007 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) [2020-12-17 21:20:01,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 21:20:01,287 INFO L93 Difference]: Finished difference Result 622 states and 1570 transitions. [2020-12-17 21:20:01,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-17 21:20:01,288 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 [2020-12-17 21:20:01,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 21:20:01,289 INFO L763 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 [2020-12-17 21:20:01,289 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 1570 transitions. Word has length 28 [2020-12-17 21:20:01,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 21:20:01,290 INFO L481 AbstractCegarLoop]: Abstraction has 622 states and 1570 transitions. [2020-12-17 21:20:01,290 INFO L482 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) [2020-12-17 21:20:01,290 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 1570 transitions. [2020-12-17 21:20:01,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-17 21:20:01,293 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 21:20:01,294 INFO L504 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] [2020-12-17 21:20:01,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 21:20:01,294 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 21:20:01,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 21:20:01,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1292248925, now seen corresponding path program 1 times [2020-12-17 21:20:01,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 21:20:01,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684126962] [2020-12-17 21:20:01,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 21:20:01,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 21:20:01,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 21:20:01,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684126962] [2020-12-17 21:20:01,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 21:20:01,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-17 21:20:01,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735088708] [2020-12-17 21:20:01,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-17 21:20:01,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 21:20:01,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-17 21:20:01,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-17 21:20:01,389 INFO L87 Difference]: Start difference. First operand 622 states and 1570 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2020-12-17 21:20:01,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 21:20:01,416 INFO L93 Difference]: Finished difference Result 550 states and 1393 transitions. [2020-12-17 21:20:01,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-17 21:20:01,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 32 [2020-12-17 21:20:01,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 21:20:01,421 INFO L763 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 [2020-12-17 21:20:01,421 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 1393 transitions. Word has length 32 [2020-12-17 21:20:01,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 21:20:01,421 INFO L481 AbstractCegarLoop]: Abstraction has 550 states and 1393 transitions. [2020-12-17 21:20:01,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2020-12-17 21:20:01,422 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 1393 transitions. [2020-12-17 21:20:01,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-17 21:20:01,425 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 21:20:01,426 INFO L504 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] [2020-12-17 21:20:01,426 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 21:20:01,426 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 21:20:01,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 21:20:01,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1543968972, now seen corresponding path program 1 times [2020-12-17 21:20:01,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 21:20:01,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268970789] [2020-12-17 21:20:01,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 21:20:01,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 21:20:01,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 21:20:01,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268970789] [2020-12-17 21:20:01,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 21:20:01,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-17 21:20:01,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507515539] [2020-12-17 21:20:01,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-17 21:20:01,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 21:20:01,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-17 21:20:01,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-17 21:20:01,534 INFO L87 Difference]: Start difference. First operand 550 states and 1393 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 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) [2020-12-17 21:20:01,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 21:20:01,590 INFO L93 Difference]: Finished difference Result 572 states and 1391 transitions. [2020-12-17 21:20:01,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-17 21:20:01,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 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 [2020-12-17 21:20:01,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 21:20:01,592 INFO L763 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 [2020-12-17 21:20:01,592 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 1391 transitions. Word has length 41 [2020-12-17 21:20:01,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 21:20:01,593 INFO L481 AbstractCegarLoop]: Abstraction has 572 states and 1391 transitions. [2020-12-17 21:20:01,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 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) [2020-12-17 21:20:01,593 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 1391 transitions. [2020-12-17 21:20:01,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-17 21:20:01,596 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 21:20:01,596 INFO L504 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] [2020-12-17 21:20:01,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-17 21:20:01,597 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 21:20:01,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 21:20:01,598 INFO L82 PathProgramCache]: Analyzing trace with hash 24608808, now seen corresponding path program 1 times [2020-12-17 21:20:01,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 21:20:01,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012256857] [2020-12-17 21:20:01,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 21:20:01,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 21:20:01,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 21:20:01,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012256857] [2020-12-17 21:20:01,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 21:20:01,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-17 21:20:01,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159897391] [2020-12-17 21:20:01,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-17 21:20:01,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 21:20:01,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-17 21:20:01,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-17 21:20:01,659 INFO L87 Difference]: Start difference. First operand 572 states and 1391 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 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) [2020-12-17 21:20:01,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 21:20:01,710 INFO L93 Difference]: Finished difference Result 564 states and 1349 transitions. [2020-12-17 21:20:01,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-17 21:20:01,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 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 [2020-12-17 21:20:01,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 21:20:01,712 INFO L763 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 [2020-12-17 21:20:01,712 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 1349 transitions. Word has length 41 [2020-12-17 21:20:01,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 21:20:01,712 INFO L481 AbstractCegarLoop]: Abstraction has 564 states and 1349 transitions. [2020-12-17 21:20:01,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 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) [2020-12-17 21:20:01,713 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 1349 transitions. [2020-12-17 21:20:01,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-17 21:20:01,715 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 21:20:01,715 INFO L504 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] [2020-12-17 21:20:01,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-17 21:20:01,716 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 21:20:01,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 21:20:01,716 INFO L82 PathProgramCache]: Analyzing trace with hash -297439550, now seen corresponding path program 2 times [2020-12-17 21:20:01,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 21:20:01,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201995040] [2020-12-17 21:20:01,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 21:20:01,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 21:20:01,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 21:20:01,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201995040] [2020-12-17 21:20:01,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 21:20:01,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-17 21:20:01,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81848385] [2020-12-17 21:20:01,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-17 21:20:01,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 21:20:01,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-17 21:20:01,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-17 21:20:01,764 INFO L87 Difference]: Start difference. First operand 564 states and 1349 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 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) [2020-12-17 21:20:01,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 21:20:01,821 INFO L93 Difference]: Finished difference Result 452 states and 1059 transitions. [2020-12-17 21:20:01,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-17 21:20:01,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 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 [2020-12-17 21:20:01,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 21:20:01,823 INFO L763 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 [2020-12-17 21:20:01,824 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 1059 transitions. Word has length 41 [2020-12-17 21:20:01,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 21:20:01,824 INFO L481 AbstractCegarLoop]: Abstraction has 452 states and 1059 transitions. [2020-12-17 21:20:01,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 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) [2020-12-17 21:20:01,825 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 1059 transitions. [2020-12-17 21:20:01,826 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-17 21:20:01,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-17 21:20:01,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 09:20:01 BasicIcfg [2020-12-17 21:20:01,832 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-17 21:20:01,835 INFO L168 Benchmark]: Toolchain (without parser) took 2653.47 ms. Allocated memory is still 302.0 MB. Free memory was 276.6 MB in the beginning and 176.6 MB in the end (delta: 100.1 MB). Peak memory consumption was 101.0 MB. Max. memory is 16.0 GB. [2020-12-17 21:20:01,836 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 302.0 MB. Free memory was 272.2 MB in the beginning and 272.1 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 21:20:01,837 INFO L168 Benchmark]: CACSL2BoogieTranslator took 724.89 ms. Allocated memory is still 302.0 MB. Free memory was 276.5 MB in the beginning and 248.1 MB in the end (delta: 28.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2020-12-17 21:20:01,838 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.77 ms. Allocated memory is still 302.0 MB. Free memory was 248.1 MB in the beginning and 246.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-17 21:20:01,839 INFO L168 Benchmark]: Boogie Preprocessor took 57.64 ms. Allocated memory is still 302.0 MB. Free memory was 246.2 MB in the beginning and 284.6 MB in the end (delta: -38.4 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. [2020-12-17 21:20:01,840 INFO L168 Benchmark]: RCFGBuilder took 524.08 ms. Allocated memory is still 302.0 MB. Free memory was 284.6 MB in the beginning and 262.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-12-17 21:20:01,840 INFO L168 Benchmark]: TraceAbstraction took 1279.86 ms. Allocated memory is still 302.0 MB. Free memory was 261.5 MB in the beginning and 176.6 MB in the end (delta: 84.9 MB). Peak memory consumption was 86.0 MB. Max. memory is 16.0 GB. [2020-12-17 21:20:01,845 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 302.0 MB. Free memory was 272.2 MB in the beginning and 272.1 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 724.89 ms. Allocated memory is still 302.0 MB. Free memory was 276.5 MB in the beginning and 248.1 MB in the end (delta: 28.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 56.77 ms. Allocated memory is still 302.0 MB. Free memory was 248.1 MB in the beginning and 246.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 57.64 ms. Allocated memory is still 302.0 MB. Free memory was 246.2 MB in the beginning and 284.6 MB in the end (delta: -38.4 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. * RCFGBuilder took 524.08 ms. Allocated memory is still 302.0 MB. Free memory was 284.6 MB in the beginning and 262.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1279.86 ms. Allocated memory is still 302.0 MB. Free memory was 261.5 MB in the beginning and 176.6 MB in the end (delta: 84.9 MB). Peak memory consumption was 86.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: 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 2 procedures, 71 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 484 SDtfs, 164 SDslu, 222 SDs, 0 SdLazy, 76 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=774occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 211 NumberOfCodeBlocks, 211 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 205 ConstructedInterpolants, 0 QuantifiedInterpolants, 9175 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...