/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-NoLbe-New_States.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/pthreadExitSafe.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-12 15:34:40,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-12 15:34:40,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-12 15:34:40,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-12 15:34:40,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-12 15:34:40,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-12 15:34:40,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-12 15:34:40,758 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-NoLbe-New_States.epf [2021-03-12 15:34:40,790 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-12 15:34:40,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-12 15:34:40,790 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-12 15:34:40,791 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-12 15:34:40,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-12 15:34:40,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-12 15:34:40,793 INFO L138 SettingsManager]: * Use SBE=true [2021-03-12 15:34:40,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-12 15:34:40,794 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-12 15:34:40,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-12 15:34:40,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-12 15:34:40,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-12 15:34:40,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-12 15:34:40,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-12 15:34:40,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-12 15:34:40,795 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-12 15:34:40,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-12 15:34:40,795 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-12 15:34:40,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-12 15:34:40,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-12 15:34:40,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-12 15:34:40,796 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-12 15:34:40,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-12 15:34:40,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-12 15:34:40,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-12 15:34:40,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-12 15:34:40,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-12 15:34:40,797 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-12 15:34:40,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-12 15:34:40,797 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-12 15:34:40,797 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-12 15:34:40,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-12 15:34:40,798 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-03-12 15:34:40,798 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-12 15:34:41,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-12 15:34:41,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-12 15:34:41,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-12 15:34:41,106 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-12 15:34:41,106 INFO L275 PluginConnector]: CDTParser initialized [2021-03-12 15:34:41,107 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/pthreadExitSafe.c [2021-03-12 15:34:41,176 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b3f83ca3/3cd0821960c94edf9a2e2a74c8a50465/FLAG6d7182b20 [2021-03-12 15:34:41,636 INFO L306 CDTParser]: Found 1 translation units. [2021-03-12 15:34:41,637 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/pthreadExitSafe.c [2021-03-12 15:34:41,637 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-12 15:34:41,637 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-12 15:34:41,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b3f83ca3/3cd0821960c94edf9a2e2a74c8a50465/FLAG6d7182b20 [2021-03-12 15:34:42,139 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b3f83ca3/3cd0821960c94edf9a2e2a74c8a50465 [2021-03-12 15:34:42,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-12 15:34:42,146 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-12 15:34:42,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-12 15:34:42,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-12 15:34:42,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-12 15:34:42,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.03 03:34:42" (1/1) ... [2021-03-12 15:34:42,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68c40871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 03:34:42, skipping insertion in model container [2021-03-12 15:34:42,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.03 03:34:42" (1/1) ... [2021-03-12 15:34:42,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-12 15:34:42,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-12 15:34:42,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-12 15:34:42,334 INFO L203 MainTranslator]: Completed pre-run [2021-03-12 15:34:42,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-12 15:34:42,367 INFO L208 MainTranslator]: Completed translation [2021-03-12 15:34:42,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 03:34:42 WrapperNode [2021-03-12 15:34:42,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-12 15:34:42,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-12 15:34:42,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-12 15:34:42,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-12 15:34:42,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 03:34:42" (1/1) ... [2021-03-12 15:34:42,379 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 03:34:42" (1/1) ... [2021-03-12 15:34:42,392 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-12 15:34:42,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-12 15:34:42,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-12 15:34:42,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-12 15:34:42,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 03:34:42" (1/1) ... [2021-03-12 15:34:42,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 03:34:42" (1/1) ... [2021-03-12 15:34:42,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 03:34:42" (1/1) ... [2021-03-12 15:34:42,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 03:34:42" (1/1) ... [2021-03-12 15:34:42,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 03:34:42" (1/1) ... [2021-03-12 15:34:42,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 03:34:42" (1/1) ... [2021-03-12 15:34:42,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 03:34:42" (1/1) ... [2021-03-12 15:34:42,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-12 15:34:42,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-12 15:34:42,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-12 15:34:42,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-12 15:34:42,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 03:34:42" (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 15:34:42,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-03-12 15:34:42,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-12 15:34:42,492 INFO L130 BoogieDeclarations]: Found specification of procedure dec [2021-03-12 15:34:42,493 INFO L138 BoogieDeclarations]: Found implementation of procedure dec [2021-03-12 15:34:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-12 15:34:42,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-12 15:34:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-12 15:34:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-12 15:34:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-12 15:34:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-12 15:34:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-12 15:34:42,495 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 15:34:42,768 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-12 15:34:42,768 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-12 15:34:42,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 03:34:42 BoogieIcfgContainer [2021-03-12 15:34:42,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-12 15:34:42,771 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-12 15:34:42,771 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-12 15:34:42,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-12 15:34:42,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.03 03:34:42" (1/3) ... [2021-03-12 15:34:42,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3086f42d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 03:34:42, skipping insertion in model container [2021-03-12 15:34:42,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 03:34:42" (2/3) ... [2021-03-12 15:34:42,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3086f42d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 03:34:42, skipping insertion in model container [2021-03-12 15:34:42,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 03:34:42" (3/3) ... [2021-03-12 15:34:42,775 INFO L111 eAbstractionObserver]: Analyzing ICFG pthreadExitSafe.c [2021-03-12 15:34:42,779 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-12 15:34:42,780 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-12 15:34:42,782 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-12 15:34:42,783 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-12 15:34:42,801 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,802 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,802 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,802 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,802 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,803 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,803 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,803 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,803 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,803 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,803 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,804 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,804 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,804 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,804 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,804 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,804 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,805 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,805 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,805 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,805 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,805 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,805 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,806 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,806 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,806 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,806 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,806 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,806 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,807 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,807 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,807 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,807 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,808 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,808 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,808 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,808 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,808 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,808 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,808 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,809 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,809 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,809 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,809 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,815 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,815 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,815 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,815 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,815 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,816 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,816 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,816 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 15:34:42,826 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-03-12 15:34:42,841 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 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 15:34:42,894 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-12 15:34:42,894 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-12 15:34:42,894 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-12 15:34:42,895 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-12 15:34:42,895 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-12 15:34:42,895 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-12 15:34:42,895 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-12 15:34:42,895 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-12 15:34:42,933 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 15:34:42,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 15:34:42,937 INFO L82 PathProgramCache]: Analyzing trace with hash -370458894, now seen corresponding path program 1 times [2021-03-12 15:34:42,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 15:34:42,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635421427] [2021-03-12 15:34:42,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 15:34:43,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 15:34:43,487 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 15:34:43,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635421427] [2021-03-12 15:34:43,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 15:34:43,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-12 15:34:43,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442766364] [2021-03-12 15:34:43,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-12 15:34:43,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 15:34:43,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-12 15:34:43,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2021-03-12 15:34:43,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 15:34:43,505 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 15:34:43,507 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 18 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 15:34:43,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 15:34:44,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-12 15:34:44,575 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-12 15:34:44,576 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 15:34:44,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 15:34:44,578 INFO L82 PathProgramCache]: Analyzing trace with hash 896627278, now seen corresponding path program 2 times [2021-03-12 15:34:44,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 15:34:44,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772518474] [2021-03-12 15:34:44,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 15:34:44,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 15:34:44,896 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 15:34:44,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772518474] [2021-03-12 15:34:44,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 15:34:44,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-12 15:34:44,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995405663] [2021-03-12 15:34:44,897 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-12 15:34:44,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 15:34:44,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-12 15:34:44,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2021-03-12 15:34:44,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 15:34:44,899 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 15:34:44,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 18 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 15:34:44,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-03-12 15:34:44,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 15:34:45,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-12 15:34:45,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-03-12 15:34:45,930 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-12 15:34:45,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.03 03:34:45 BasicIcfg [2021-03-12 15:34:45,937 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-12 15:34:45,938 INFO L168 Benchmark]: Toolchain (without parser) took 3794.81 ms. Allocated memory was 255.9 MB in the beginning and 444.6 MB in the end (delta: 188.7 MB). Free memory was 233.2 MB in the beginning and 410.7 MB in the end (delta: -177.5 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.0 GB. [2021-03-12 15:34:45,938 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 15:34:45,939 INFO L168 Benchmark]: CACSL2BoogieTranslator took 220.80 ms. Allocated memory was 255.9 MB in the beginning and 369.1 MB in the end (delta: 113.2 MB). Free memory was 232.6 MB in the beginning and 352.0 MB in the end (delta: -119.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-03-12 15:34:45,939 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.30 ms. Allocated memory is still 369.1 MB. Free memory was 352.0 MB in the beginning and 350.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 15:34:45,940 INFO L168 Benchmark]: Boogie Preprocessor took 23.48 ms. Allocated memory is still 369.1 MB. Free memory was 350.6 MB in the beginning and 349.9 MB in the end (delta: 758.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-12 15:34:45,940 INFO L168 Benchmark]: RCFGBuilder took 352.21 ms. Allocated memory is still 369.1 MB. Free memory was 349.4 MB in the beginning and 333.8 MB in the end (delta: 15.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-12 15:34:45,941 INFO L168 Benchmark]: TraceAbstraction took 3166.75 ms. Allocated memory was 369.1 MB in the beginning and 444.6 MB in the end (delta: 75.5 MB). Free memory was 333.5 MB in the beginning and 410.7 MB in the end (delta: -77.2 MB). Peak memory consumption was 1.5 MB. Max. memory is 16.0 GB. [2021-03-12 15:34:45,943 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 220.80 ms. Allocated memory was 255.9 MB in the beginning and 369.1 MB in the end (delta: 113.2 MB). Free memory was 232.6 MB in the beginning and 352.0 MB in the end (delta: -119.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.30 ms. Allocated memory is still 369.1 MB. Free memory was 352.0 MB in the beginning and 350.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 23.48 ms. Allocated memory is still 369.1 MB. Free memory was 350.6 MB in the beginning and 349.9 MB in the end (delta: 758.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 352.21 ms. Allocated memory is still 369.1 MB. Free memory was 349.4 MB in the beginning and 333.8 MB in the end (delta: 15.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3166.75 ms. Allocated memory was 369.1 MB in the beginning and 444.6 MB in the end (delta: 75.5 MB). Free memory was 333.5 MB in the beginning and 410.7 MB in the end (delta: -77.2 MB). Peak memory consumption was 1.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 58, positive: 53, positive conditional: 53, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 55, positive: 53, positive conditional: 53, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 55, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 27, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 27, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 60, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 60, negative conditional: 28, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 55, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 27, unknown conditional: 0, unknown unconditional: 27] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 26, Positive conditional cache size: 0, Positive unconditional cache size: 26, Negative cache size: 3, Negative conditional cache size: 2, Negative unconditional cache size: 1, SemanticConditionEliminator.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 60, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 60, negative conditional: 28, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 26, Positive conditional cache size: 0, Positive unconditional cache size: 26, Negative cache size: 3, Negative conditional cache size: 2, Negative unconditional cache size: 1, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 60, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 60, negative conditional: 28, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 26, Positive conditional cache size: 0, Positive unconditional cache size: 26, Negative cache size: 3, Negative conditional cache size: 2, Negative unconditional cache size: 1, Eliminated conditions: 0 ], Maximal queried relation: 2, Independence queries for same thread: 3 - PositiveResult [Line: 29]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3069.8ms, OverallIterations: 2, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.0ms, PartialOrderReductionTime: 2124.1ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 60, 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: 21.3ms SsaConstructionTime, 68.4ms SatisfiabilityAnalysisTime, 716.3ms InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 561 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...