/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-SemanticLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-12 21:48:26,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-12 21:48:26,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-12 21:48:26,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-12 21:48:26,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-12 21:48:26,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-12 21:48:26,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-12 21:48:26,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-12 21:48:26,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-12 21:48:26,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-12 21:48:26,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-12 21:48:26,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-12 21:48:26,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-12 21:48:26,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-12 21:48:26,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-12 21:48:26,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-12 21:48:26,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-12 21:48:26,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-12 21:48:26,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-12 21:48:26,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-12 21:48:26,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-12 21:48:26,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-12 21:48:26,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-12 21:48:26,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-12 21:48:26,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-12 21:48:26,822 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-12 21:48:26,822 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-12 21:48:26,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-12 21:48:26,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-12 21:48:26,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-12 21:48:26,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-12 21:48:26,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-12 21:48:26,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-12 21:48:26,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-12 21:48:26,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-12 21:48:26,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-12 21:48:26,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-12 21:48:26,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-12 21:48:26,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-12 21:48:26,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-12 21:48:26,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-12 21:48:26,832 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-Sleep-SemanticLbe-Delay.epf [2021-03-12 21:48:26,859 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-12 21:48:26,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-12 21:48:26,860 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-12 21:48:26,860 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-12 21:48:26,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-12 21:48:26,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-12 21:48:26,862 INFO L138 SettingsManager]: * Use SBE=true [2021-03-12 21:48:26,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-12 21:48:26,863 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-12 21:48:26,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-12 21:48:26,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-12 21:48:26,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-12 21:48:26,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-12 21:48:26,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-12 21:48:26,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-12 21:48:26,864 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-12 21:48:26,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-12 21:48:26,864 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-12 21:48:26,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-12 21:48:26,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-12 21:48:26,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-12 21:48:26,864 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-12 21:48:26,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-12 21:48:26,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-12 21:48:26,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-12 21:48:26,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-12 21:48:26,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-12 21:48:26,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-12 21:48:26,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-12 21:48:26,865 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-12 21:48:26,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-12 21:48:26,865 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-03-12 21:48:26,866 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-12 21:48:27,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-12 21:48:27,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-12 21:48:27,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-12 21:48:27,118 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-12 21:48:27,119 INFO L275 PluginConnector]: CDTParser initialized [2021-03-12 21:48:27,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.opt.i [2021-03-12 21:48:27,166 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5b90412a/d1a96f2e75c84692801fc630ab1d952a/FLAG4af7fbed3 [2021-03-12 21:48:27,650 INFO L306 CDTParser]: Found 1 translation units. [2021-03-12 21:48:27,650 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.opt.i [2021-03-12 21:48:27,662 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5b90412a/d1a96f2e75c84692801fc630ab1d952a/FLAG4af7fbed3 [2021-03-12 21:48:28,149 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5b90412a/d1a96f2e75c84692801fc630ab1d952a [2021-03-12 21:48:28,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-12 21:48:28,154 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-12 21:48:28,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-12 21:48:28,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-12 21:48:28,157 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-12 21:48:28,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.03 09:48:28" (1/1) ... [2021-03-12 21:48:28,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7812296f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:48:28, skipping insertion in model container [2021-03-12 21:48:28,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.03 09:48:28" (1/1) ... [2021-03-12 21:48:28,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-12 21:48:28,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-12 21:48:28,290 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.opt.i[949,962] [2021-03-12 21:48:28,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-12 21:48:28,442 INFO L203 MainTranslator]: Completed pre-run [2021-03-12 21:48:28,451 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.opt.i[949,962] [2021-03-12 21:48:28,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-12 21:48:28,523 INFO L208 MainTranslator]: Completed translation [2021-03-12 21:48:28,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:48:28 WrapperNode [2021-03-12 21:48:28,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-12 21:48:28,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-12 21:48:28,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-12 21:48:28,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-12 21:48:28,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:48:28" (1/1) ... [2021-03-12 21:48:28,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:48:28" (1/1) ... [2021-03-12 21:48:28,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-12 21:48:28,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-12 21:48:28,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-12 21:48:28,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-12 21:48:28,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:48:28" (1/1) ... [2021-03-12 21:48:28,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:48:28" (1/1) ... [2021-03-12 21:48:28,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:48:28" (1/1) ... [2021-03-12 21:48:28,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:48:28" (1/1) ... [2021-03-12 21:48:28,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:48:28" (1/1) ... [2021-03-12 21:48:28,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:48:28" (1/1) ... [2021-03-12 21:48:28,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:48:28" (1/1) ... [2021-03-12 21:48:28,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-12 21:48:28,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-12 21:48:28,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-12 21:48:28,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-12 21:48:28,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:48:28" (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 [2021-03-12 21:48:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-12 21:48:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-12 21:48:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-12 21:48:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-12 21:48:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-12 21:48:28,615 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-12 21:48:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-12 21:48:28,615 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-12 21:48:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-12 21:48:28,615 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-12 21:48:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-12 21:48:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-12 21:48:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-12 21:48:28,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-12 21:48:28,616 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-12 21:48:28,886 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-12 21:48:28,887 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-12 21:48:28,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 09:48:28 BoogieIcfgContainer [2021-03-12 21:48:28,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-12 21:48:28,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-12 21:48:28,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-12 21:48:28,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-12 21:48:28,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.03 09:48:28" (1/3) ... [2021-03-12 21:48:28,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b03d0d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 09:48:28, skipping insertion in model container [2021-03-12 21:48:28,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:48:28" (2/3) ... [2021-03-12 21:48:28,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b03d0d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 09:48:28, skipping insertion in model container [2021-03-12 21:48:28,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 09:48:28" (3/3) ... [2021-03-12 21:48:28,894 INFO L111 eAbstractionObserver]: Analyzing ICFG safe031_tso.opt.i [2021-03-12 21:48:28,897 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-12 21:48:28,898 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-12 21:48:28,900 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-12 21:48:28,901 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-12 21:48:28,927 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,927 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,928 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,928 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,928 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,928 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,928 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,928 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,928 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,928 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,928 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,929 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,929 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,929 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,929 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,929 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,929 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,929 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,929 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,929 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,929 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,930 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,930 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,930 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,930 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,930 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,930 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,930 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,930 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,930 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,930 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,930 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,931 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,931 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,931 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,931 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,932 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,933 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,933 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,933 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,936 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,936 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,936 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,936 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,938 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,938 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,938 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,938 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 21:48:28,939 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-12 21:48:28,949 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-12 21:48:28,978 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-12 21:48:28,978 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-12 21:48:28,978 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-12 21:48:28,979 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-12 21:48:28,979 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-12 21:48:28,979 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-12 21:48:28,979 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-12 21:48:28,979 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-12 21:48:28,989 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-12 21:48:28,990 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 74 transitions, 163 flow [2021-03-12 21:48:28,994 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 74 transitions, 163 flow [2021-03-12 21:48:28,995 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-03-12 21:48:29,041 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-03-12 21:48:29,042 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-12 21:48:29,044 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-12 21:48:29,047 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2021-03-12 21:48:31,018 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-12 21:48:31,198 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-12 21:48:31,249 INFO L131 LiptonReduction]: Checked pairs total: 2527 [2021-03-12 21:48:31,249 INFO L133 LiptonReduction]: Total number of compositions: 60 [2021-03-12 21:48:31,284 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-12 21:48:31,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 21:48:31,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1493672842, now seen corresponding path program 1 times [2021-03-12 21:48:31,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 21:48:31,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085210129] [2021-03-12 21:48:31,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 21:48:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 21:48:31,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 21:48:31,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085210129] [2021-03-12 21:48:31,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 21:48:31,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-12 21:48:31,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283997661] [2021-03-12 21:48:31,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-12 21:48:31,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 21:48:31,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-12 21:48:31,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-12 21:48:31,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 21:48:31,403 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 21:48:31,404 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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) [2021-03-12 21:48:31,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 21:48:31,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 21:48:31,407 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-12 21:48:31,407 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-12 21:48:31,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 21:48:31,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1493660752, now seen corresponding path program 1 times [2021-03-12 21:48:31,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 21:48:31,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700861241] [2021-03-12 21:48:31,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 21:48:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 21:48:31,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 21:48:31,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700861241] [2021-03-12 21:48:31,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 21:48:31,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-12 21:48:31,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646351554] [2021-03-12 21:48:31,502 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-12 21:48:31,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 21:48:31,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-12 21:48:31,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-12 21:48:31,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 21:48:31,507 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 21:48:31,507 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2021-03-12 21:48:31,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 21:48:31,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 21:48:31,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 21:48:31,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 21:48:31,558 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-12 21:48:31,558 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-12 21:48:31,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 21:48:31,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1614348608, now seen corresponding path program 1 times [2021-03-12 21:48:31,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 21:48:31,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366872211] [2021-03-12 21:48:31,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 21:48:31,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 21:48:31,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 21:48:31,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366872211] [2021-03-12 21:48:31,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 21:48:31,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-12 21:48:31,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925533966] [2021-03-12 21:48:31,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-12 21:48:31,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 21:48:31,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-12 21:48:31,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-12 21:48:31,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 21:48:31,653 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 21:48:31,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-03-12 21:48:31,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 21:48:31,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 21:48:31,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 21:48:31,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 21:48:31,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 21:48:31,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 21:48:31,888 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-12 21:48:31,889 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-12 21:48:31,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 21:48:31,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1852727400, now seen corresponding path program 1 times [2021-03-12 21:48:31,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 21:48:31,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102980868] [2021-03-12 21:48:31,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 21:48:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 21:48:31,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 21:48:31,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102980868] [2021-03-12 21:48:31,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 21:48:31,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-12 21:48:31,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399380304] [2021-03-12 21:48:31,968 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-12 21:48:31,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 21:48:31,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-12 21:48:31,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-12 21:48:31,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 21:48:31,969 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 21:48:31,969 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2021-03-12 21:48:31,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 21:48:31,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 21:48:31,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-12 21:48:31,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 21:48:32,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 21:48:32,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 21:48:32,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-12 21:48:32,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 21:48:32,057 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-12 21:48:32,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.03 09:48:32 BasicIcfg [2021-03-12 21:48:32,068 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-12 21:48:32,068 INFO L168 Benchmark]: Toolchain (without parser) took 3916.82 ms. Allocated memory was 255.9 MB in the beginning and 406.8 MB in the end (delta: 151.0 MB). Free memory was 234.8 MB in the beginning and 303.9 MB in the end (delta: -69.1 MB). Peak memory consumption was 81.1 MB. Max. memory is 16.0 GB. [2021-03-12 21:48:32,069 INFO L168 Benchmark]: CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 21:48:32,069 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.28 ms. Allocated memory was 255.9 MB in the beginning and 337.6 MB in the end (delta: 81.8 MB). Free memory was 234.4 MB in the beginning and 300.5 MB in the end (delta: -66.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-12 21:48:32,069 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.61 ms. Allocated memory is still 337.6 MB. Free memory was 300.5 MB in the beginning and 298.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-12 21:48:32,069 INFO L168 Benchmark]: Boogie Preprocessor took 12.70 ms. Allocated memory is still 337.6 MB. Free memory was 298.3 MB in the beginning and 297.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-12 21:48:32,070 INFO L168 Benchmark]: RCFGBuilder took 327.25 ms. Allocated memory is still 337.6 MB. Free memory was 297.2 MB in the beginning and 313.2 MB in the end (delta: -16.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. [2021-03-12 21:48:32,071 INFO L168 Benchmark]: TraceAbstraction took 3177.20 ms. Allocated memory was 337.6 MB in the beginning and 406.8 MB in the end (delta: 69.2 MB). Free memory was 313.2 MB in the beginning and 303.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 78.4 MB. Max. memory is 16.0 GB. [2021-03-12 21:48:32,074 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 369.28 ms. Allocated memory was 255.9 MB in the beginning and 337.6 MB in the end (delta: 81.8 MB). Free memory was 234.4 MB in the beginning and 300.5 MB in the end (delta: -66.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.61 ms. Allocated memory is still 337.6 MB. Free memory was 300.5 MB in the beginning and 298.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.70 ms. Allocated memory is still 337.6 MB. Free memory was 298.3 MB in the beginning and 297.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 327.25 ms. Allocated memory is still 337.6 MB. Free memory was 297.2 MB in the beginning and 313.2 MB in the end (delta: -16.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3177.20 ms. Allocated memory was 337.6 MB in the beginning and 406.8 MB in the end (delta: 69.2 MB). Free memory was 313.2 MB in the beginning and 303.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 78.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2255.6ms, 82 PlacesBefore, 32 PlacesAfterwards, 74 TransitionsBefore, 23 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 60 TotalNumberOfCompositions, 2527 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1128, positive: 1038, positive conditional: 0, positive unconditional: 1038, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 744, positive: 716, positive conditional: 0, positive unconditional: 716, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 744, positive: 716, positive conditional: 0, positive unconditional: 716, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 28, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 80, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1128, positive: 322, positive conditional: 0, positive unconditional: 322, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 744, unknown conditional: 0, unknown unconditional: 744] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 37, Positive conditional cache size: 0, Positive unconditional cache size: 37, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1510, positive: 1305, positive conditional: 1305, positive unconditional: 0, negative: 205, negative conditional: 205, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1331, positive: 1305, positive conditional: 1305, positive unconditional: 0, negative: 26, negative conditional: 26, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1331, positive: 1056, positive conditional: 0, positive unconditional: 1056, negative: 275, negative conditional: 0, negative unconditional: 275, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 87, positive: 73, positive conditional: 0, positive unconditional: 73, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 87, positive: 69, positive conditional: 0, positive unconditional: 69, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 28, positive conditional: 24, positive unconditional: 4, negative: 18, negative conditional: 4, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 167, positive: 94, positive conditional: 83, positive unconditional: 11, negative: 73, negative conditional: 15, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1331, positive: 983, positive conditional: 0, positive unconditional: 983, negative: 261, negative conditional: 0, negative unconditional: 261, unknown: 87, unknown conditional: 0, unknown unconditional: 87] , Statistics on independence cache: Total cache size (in pairs): 115, Positive cache size: 97, Positive conditional cache size: 24, Positive unconditional cache size: 73, Negative cache size: 18, Negative conditional cache size: 4, Negative unconditional cache size: 14, SemanticConditionEliminator.Independence Queries: [ total: 811, positive: 249, positive conditional: 249, positive unconditional: 0, negative: 562, negative conditional: 46, negative unconditional: 516, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 811, positive: 249, positive conditional: 249, positive unconditional: 0, negative: 562, negative conditional: 46, negative unconditional: 516, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 28, positive conditional: 24, positive unconditional: 4, negative: 18, negative conditional: 4, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 167, positive: 94, positive conditional: 83, positive unconditional: 11, negative: 73, negative conditional: 15, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 811, positive: 225, positive conditional: 225, positive unconditional: 0, negative: 558, negative conditional: 42, negative unconditional: 516, unknown: 28, unknown conditional: 28, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 115, Positive cache size: 97, Positive conditional cache size: 24, Positive unconditional cache size: 73, Negative cache size: 18, Negative conditional cache size: 4, Negative unconditional cache size: 14, Eliminated conditions: 516, SemanticConditionEliminator.Independence Queries: [ total: 811, positive: 249, positive conditional: 249, positive unconditional: 0, negative: 562, negative conditional: 46, negative unconditional: 516, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 811, positive: 249, positive conditional: 249, positive unconditional: 0, negative: 562, negative conditional: 46, negative unconditional: 516, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 28, positive conditional: 24, positive unconditional: 4, negative: 18, negative conditional: 4, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 167, positive: 94, positive conditional: 83, positive unconditional: 11, negative: 73, negative conditional: 15, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 811, positive: 225, positive conditional: 225, positive unconditional: 0, negative: 558, negative conditional: 42, negative unconditional: 516, unknown: 28, unknown conditional: 28, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 115, Positive cache size: 97, Positive conditional cache size: 24, Positive unconditional cache size: 73, Negative cache size: 18, Negative conditional cache size: 4, Negative unconditional cache size: 14, Eliminated conditions: 516, SemanticConditionEliminator.Independence Queries: [ total: 811, positive: 249, positive conditional: 249, positive unconditional: 0, negative: 562, negative conditional: 46, negative unconditional: 516, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 811, positive: 249, positive conditional: 249, positive unconditional: 0, negative: 562, negative conditional: 46, negative unconditional: 516, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 28, positive conditional: 24, positive unconditional: 4, negative: 18, negative conditional: 4, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 167, positive: 94, positive conditional: 83, positive unconditional: 11, negative: 73, negative conditional: 15, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 811, positive: 225, positive conditional: 225, positive unconditional: 0, negative: 558, negative conditional: 42, negative unconditional: 516, unknown: 28, unknown conditional: 28, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 115, Positive cache size: 97, Positive conditional cache size: 24, Positive unconditional cache size: 73, Negative cache size: 18, Negative conditional cache size: 4, Negative unconditional cache size: 14, Eliminated conditions: 516, SemanticConditionEliminator.Independence Queries: [ total: 811, positive: 249, positive conditional: 249, positive unconditional: 0, negative: 562, negative conditional: 46, negative unconditional: 516, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 811, positive: 249, positive conditional: 249, positive unconditional: 0, negative: 562, negative conditional: 46, negative unconditional: 516, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 28, positive conditional: 24, positive unconditional: 4, negative: 18, negative conditional: 4, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 167, positive: 94, positive conditional: 83, positive unconditional: 11, negative: 73, negative conditional: 15, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 811, positive: 225, positive conditional: 225, positive unconditional: 0, negative: 558, negative conditional: 42, negative unconditional: 516, unknown: 28, unknown conditional: 28, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 115, Positive cache size: 97, Positive conditional cache size: 24, Positive unconditional cache size: 73, Negative cache size: 18, Negative conditional cache size: 4, Negative unconditional cache size: 14, Eliminated conditions: 516 ], Maximal queried relation: 4, Independence queries for same thread: 179 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3106.2ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2278.9ms, PartialOrderReductionTime: 401.6ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 8.2ms SsaConstructionTime, 70.1ms SatisfiabilityAnalysisTime, 217.5ms InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 210 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...