/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-13 18:55:28,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-13 18:55:28,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-13 18:55:28,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-13 18:55:28,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-13 18:55:28,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-13 18:55:28,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-13 18:55:28,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-13 18:55:28,512 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-13 18:55:28,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-13 18:55:28,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-13 18:55:28,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-13 18:55:28,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-13 18:55:28,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-13 18:55:28,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-13 18:55:28,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-13 18:55:28,517 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-13 18:55:28,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-13 18:55:28,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-13 18:55:28,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-13 18:55:28,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-13 18:55:28,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-13 18:55:28,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-13 18:55:28,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-13 18:55:28,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-13 18:55:28,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-13 18:55:28,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-13 18:55:28,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-13 18:55:28,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-13 18:55:28,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-13 18:55:28,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-13 18:55:28,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-13 18:55:28,526 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-13 18:55:28,527 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-13 18:55:28,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-13 18:55:28,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-13 18:55:28,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-13 18:55:28,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-13 18:55:28,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-13 18:55:28,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-13 18:55:28,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-13 18:55:28,530 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.epf [2021-07-13 18:55:28,566 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-13 18:55:28,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-13 18:55:28,567 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-13 18:55:28,567 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-13 18:55:28,568 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-13 18:55:28,568 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-13 18:55:28,568 INFO L138 SettingsManager]: * Use SBE=true [2021-07-13 18:55:28,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-13 18:55:28,568 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-13 18:55:28,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-13 18:55:28,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-13 18:55:28,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-13 18:55:28,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-13 18:55:28,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-13 18:55:28,569 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-13 18:55:28,569 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-13 18:55:28,569 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-13 18:55:28,569 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-13 18:55:28,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-13 18:55:28,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-13 18:55:28,570 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-13 18:55:28,570 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-13 18:55:28,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-13 18:55:28,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 18:55:28,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-13 18:55:28,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-13 18:55:28,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-13 18:55:28,570 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-13 18:55:28,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-13 18:55:28,570 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-13 18:55:28,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-13 18:55:28,571 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-13 18:55:28,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-13 18:55:28,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-13 18:55:28,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-13 18:55:28,821 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-13 18:55:28,828 INFO L275 PluginConnector]: CDTParser initialized [2021-07-13 18:55:28,828 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2021-07-13 18:55:28,870 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa8c62e03/76ac095a8cd948e8b3a981aba4597e61/FLAGf1b0f61ee [2021-07-13 18:55:29,338 INFO L306 CDTParser]: Found 1 translation units. [2021-07-13 18:55:29,339 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2021-07-13 18:55:29,351 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa8c62e03/76ac095a8cd948e8b3a981aba4597e61/FLAGf1b0f61ee [2021-07-13 18:55:29,363 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa8c62e03/76ac095a8cd948e8b3a981aba4597e61 [2021-07-13 18:55:29,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-13 18:55:29,366 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-13 18:55:29,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-13 18:55:29,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-13 18:55:29,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-13 18:55:29,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:55:29" (1/1) ... [2021-07-13 18:55:29,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61bdc07f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:29, skipping insertion in model container [2021-07-13 18:55:29,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:55:29" (1/1) ... [2021-07-13 18:55:29,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-13 18:55:29,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-13 18:55:29,552 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i[30003,30016] [2021-07-13 18:55:29,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:55:29,602 INFO L203 MainTranslator]: Completed pre-run [2021-07-13 18:55:29,629 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i[30003,30016] [2021-07-13 18:55:29,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:55:29,679 INFO L208 MainTranslator]: Completed translation [2021-07-13 18:55:29,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:29 WrapperNode [2021-07-13 18:55:29,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-13 18:55:29,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-13 18:55:29,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-13 18:55:29,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-13 18:55:29,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:29" (1/1) ... [2021-07-13 18:55:29,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:29" (1/1) ... [2021-07-13 18:55:29,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-13 18:55:29,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-13 18:55:29,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-13 18:55:29,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-13 18:55:29,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:29" (1/1) ... [2021-07-13 18:55:29,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:29" (1/1) ... [2021-07-13 18:55:29,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:29" (1/1) ... [2021-07-13 18:55:29,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:29" (1/1) ... [2021-07-13 18:55:29,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:29" (1/1) ... [2021-07-13 18:55:29,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:29" (1/1) ... [2021-07-13 18:55:29,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:29" (1/1) ... [2021-07-13 18:55:29,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-13 18:55:29,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-13 18:55:29,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-13 18:55:29,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-13 18:55:29,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 18:55:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-07-13 18:55:29,807 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-07-13 18:55:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-07-13 18:55:29,808 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-07-13 18:55:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-13 18:55:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-13 18:55:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-13 18:55:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-13 18:55:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-13 18:55:29,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-13 18:55:29,811 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-13 18:55:30,102 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-13 18:55:30,102 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-07-13 18:55:30,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:55:30 BoogieIcfgContainer [2021-07-13 18:55:30,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-13 18:55:30,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-13 18:55:30,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-13 18:55:30,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-13 18:55:30,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:55:29" (1/3) ... [2021-07-13 18:55:30,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@151d895a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:55:30, skipping insertion in model container [2021-07-13 18:55:30,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:29" (2/3) ... [2021-07-13 18:55:30,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@151d895a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:55:30, skipping insertion in model container [2021-07-13 18:55:30,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:55:30" (3/3) ... [2021-07-13 18:55:30,108 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-2.i [2021-07-13 18:55:30,112 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-13 18:55:30,112 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-13 18:55:30,112 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-13 18:55:30,112 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-13 18:55:30,129 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,130 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,130 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,130 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,130 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,130 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,131 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,131 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,131 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,131 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,131 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,131 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,131 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,131 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,132 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,132 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,132 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,132 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,133 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,133 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,133 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,133 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,133 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,133 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,134 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,134 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,134 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,134 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,134 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,134 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,134 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,135 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,135 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,135 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,135 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,136 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,136 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,136 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,137 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,137 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,137 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,137 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,139 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,139 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,139 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,139 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,139 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,146 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,146 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,146 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,146 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,147 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:30,152 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-13 18:55:30,168 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-13 18:55:30,185 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 18:55:30,185 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 18:55:30,185 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 18:55:30,185 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 18:55:30,185 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 18:55:30,185 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 18:55:30,186 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 18:55:30,186 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thr1Thread1of1ForFork1======== [2021-07-13 18:55:30,198 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 72 transitions, 154 flow [2021-07-13 18:55:30,252 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1073 states, 1070 states have (on average 2.591588785046729) internal successors, (2773), 1072 states have internal predecessors, (2773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:30,256 INFO L276 IsEmpty]: Start isEmpty. Operand has 1073 states, 1070 states have (on average 2.591588785046729) internal successors, (2773), 1072 states have internal predecessors, (2773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:30,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-07-13 18:55:30,261 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:30,262 INFO L508 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] [2021-07-13 18:55:30,262 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:30,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:30,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1204908705, now seen corresponding path program 1 times [2021-07-13 18:55:30,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:30,272 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737405007] [2021-07-13 18:55:30,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:30,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:30,603 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:30,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737405007] [2021-07-13 18:55:30,604 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737405007] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:30,604 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:30,604 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-13 18:55:30,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403829018] [2021-07-13 18:55:30,607 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-13 18:55:30,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:30,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-13 18:55:30,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-13 18:55:30,618 INFO L87 Difference]: Start difference. First operand has 1073 states, 1070 states have (on average 2.591588785046729) internal successors, (2773), 1072 states have internal predecessors, (2773), 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 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:30,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:30,833 INFO L93 Difference]: Finished difference Result 1060 states and 2594 transitions. [2021-07-13 18:55:30,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-13 18:55:30,836 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 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 35 [2021-07-13 18:55:30,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:30,854 INFO L225 Difference]: With dead ends: 1060 [2021-07-13 18:55:30,854 INFO L226 Difference]: Without dead ends: 596 [2021-07-13 18:55:30,856 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 113.8ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-07-13 18:55:30,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2021-07-13 18:55:30,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2021-07-13 18:55:30,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 594 states have (on average 2.3754208754208754) internal successors, (1411), 595 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:30,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 1411 transitions. [2021-07-13 18:55:30,929 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 1411 transitions. Word has length 35 [2021-07-13 18:55:30,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:30,931 INFO L482 AbstractCegarLoop]: Abstraction has 596 states and 1411 transitions. [2021-07-13 18:55:30,931 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:30,932 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 1411 transitions. [2021-07-13 18:55:30,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-07-13 18:55:30,938 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:30,938 INFO L508 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, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:30,938 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-13 18:55:30,938 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:30,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:30,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1723552665, now seen corresponding path program 1 times [2021-07-13 18:55:30,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:30,939 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531161923] [2021-07-13 18:55:30,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-13 18:55:30,967 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-13 18:55:30,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-13 18:55:30,998 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-13 18:55:31,036 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-13 18:55:31,037 INFO L609 BasicCegarLoop]: Counterexample might be feasible [2021-07-13 18:55:31,037 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-13 18:55:31,038 INFO L301 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork1 was UNSAFE (1/2) [2021-07-13 18:55:31,040 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-13 18:55:31,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 06:55:31 BasicIcfg [2021-07-13 18:55:31,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-13 18:55:31,092 INFO L168 Benchmark]: Toolchain (without parser) took 1725.03 ms. Allocated memory is still 198.2 MB. Free memory was 162.8 MB in the beginning and 106.2 MB in the end (delta: 56.7 MB). Peak memory consumption was 57.4 MB. Max. memory is 8.0 GB. [2021-07-13 18:55:31,092 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 198.2 MB. Free memory is still 180.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-13 18:55:31,092 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.35 ms. Allocated memory is still 198.2 MB. Free memory was 162.7 MB in the beginning and 174.0 MB in the end (delta: -11.3 MB). Peak memory consumption was 15.0 MB. Max. memory is 8.0 GB. [2021-07-13 18:55:31,093 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.90 ms. Allocated memory is still 198.2 MB. Free memory was 174.0 MB in the beginning and 171.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-13 18:55:31,093 INFO L168 Benchmark]: Boogie Preprocessor took 14.92 ms. Allocated memory is still 198.2 MB. Free memory was 171.8 MB in the beginning and 170.8 MB in the end (delta: 997.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-13 18:55:31,093 INFO L168 Benchmark]: RCFGBuilder took 382.02 ms. Allocated memory is still 198.2 MB. Free memory was 170.6 MB in the beginning and 149.2 MB in the end (delta: 21.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-07-13 18:55:31,094 INFO L168 Benchmark]: TraceAbstraction took 986.52 ms. Allocated memory is still 198.2 MB. Free memory was 148.8 MB in the beginning and 106.2 MB in the end (delta: 42.7 MB). Peak memory consumption was 43.5 MB. Max. memory is 8.0 GB. [2021-07-13 18:55:31,098 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 198.2 MB. Free memory is still 180.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 312.35 ms. Allocated memory is still 198.2 MB. Free memory was 162.7 MB in the beginning and 174.0 MB in the end (delta: -11.3 MB). Peak memory consumption was 15.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 24.90 ms. Allocated memory is still 198.2 MB. Free memory was 174.0 MB in the beginning and 171.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.92 ms. Allocated memory is still 198.2 MB. Free memory was 171.8 MB in the beginning and 170.8 MB in the end (delta: 997.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 382.02 ms. Allocated memory is still 198.2 MB. Free memory was 170.6 MB in the beginning and 149.2 MB in the end (delta: 21.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 986.52 ms. Allocated memory is still 198.2 MB. Free memory was 148.8 MB in the beginning and 106.2 MB in the end (delta: 42.7 MB). Peak memory consumption was 43.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 690]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 volatile int x; VAL [x=0] [L698] 0 volatile int n; VAL [n=0, x=0] [L710] 0 pthread_t t1, t2; VAL [n=0, x=0] [L711] 0 int i; VAL [n=0, x=0] [L712] 0 x = 0 VAL [n=0, x=0] [L713] 0 n = __VERIFIER_nondet_int() VAL [n=1, x=0] [L686] COND FALSE 0 !(!cond) VAL [n=1, x=0] [L715] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [n=1, x=0] [L716] 0 i = 0 VAL [n=1, x=0] [L716] COND TRUE 0 i < n VAL [n=1, x=0] [L717] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [arg={0:0}, n=1, x=0] [L704] 2 int t; VAL [arg={0:0}, arg={0:0}, n=1, x=0] [L705] 2 t = x VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=0] [L706] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=1] [L689] COND TRUE 1 !(cond) VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=1] [L690] 1 reach_error() VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=1] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 89 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 855.0ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 14.5ms, AutomataDifference: 247.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 66.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 106 SDtfs, 156 SDslu, 430 SDs, 0 SdLazy, 92 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 54.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 113.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1073occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 63.8ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 9.6ms SsaConstructionTime, 53.4ms SatisfiabilityAnalysisTime, 207.3ms InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 129 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 incorrect! Received shutdown request...