/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-POR-DelaySleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98707888a4ba860d5b57d27ee0e051c5b948cbbf-9870788 [2021-06-01 23:11:12,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-01 23:11:12,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-01 23:11:12,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-01 23:11:12,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-01 23:11:12,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-01 23:11:12,147 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-01 23:11:12,154 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-POR-DelaySleep-NoLbe.epf [2021-06-01 23:11:12,178 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-01 23:11:12,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-01 23:11:12,179 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-01 23:11:12,179 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-01 23:11:12,180 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-01 23:11:12,180 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-01 23:11:12,180 INFO L138 SettingsManager]: * Use SBE=true [2021-06-01 23:11:12,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-01 23:11:12,181 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-01 23:11:12,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-01 23:11:12,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-01 23:11:12,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-01 23:11:12,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-01 23:11:12,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-01 23:11:12,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-01 23:11:12,182 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-01 23:11:12,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-01 23:11:12,182 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-01 23:11:12,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-01 23:11:12,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-01 23:11:12,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-01 23:11:12,182 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-01 23:11:12,182 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-01 23:11:12,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-01 23:11:12,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-01 23:11:12,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-01 23:11:12,183 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-01 23:11:12,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-01 23:11:12,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-01 23:11:12,183 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-01 23:11:12,183 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-01 23:11:12,183 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-01 23:11:12,183 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-01 23:11:12,183 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-01 23:11:12,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-01 23:11:12,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-01 23:11:12,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-01 23:11:12,412 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-01 23:11:12,412 INFO L275 PluginConnector]: CDTParser initialized [2021-06-01 23:11:12,413 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2021-06-01 23:11:12,448 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/250e51fe1/a2485dff1eb342e68b793d4a47bbdb89/FLAGd06172483 [2021-06-01 23:11:12,848 INFO L306 CDTParser]: Found 1 translation units. [2021-06-01 23:11:12,849 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2021-06-01 23:11:12,857 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/250e51fe1/a2485dff1eb342e68b793d4a47bbdb89/FLAGd06172483 [2021-06-01 23:11:12,871 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/250e51fe1/a2485dff1eb342e68b793d4a47bbdb89 [2021-06-01 23:11:12,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-01 23:11:12,876 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-01 23:11:12,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-01 23:11:12,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-01 23:11:12,879 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-01 23:11:12,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.06 11:11:12" (1/1) ... [2021-06-01 23:11:12,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48aaf914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:11:12, skipping insertion in model container [2021-06-01 23:11:12,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.06 11:11:12" (1/1) ... [2021-06-01 23:11:12,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-01 23:11:12,922 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-01 23:11:13,035 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-01 23:11:13,136 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2021-06-01 23:11:13,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-01 23:11:13,150 INFO L203 MainTranslator]: Completed pre-run [2021-06-01 23:11:13,162 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-01 23:11:13,176 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2021-06-01 23:11:13,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-01 23:11:13,232 INFO L208 MainTranslator]: Completed translation [2021-06-01 23:11:13,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:11:13 WrapperNode [2021-06-01 23:11:13,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-01 23:11:13,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-01 23:11:13,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-01 23:11:13,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-01 23:11:13,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:11:13" (1/1) ... [2021-06-01 23:11:13,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:11:13" (1/1) ... [2021-06-01 23:11:13,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-01 23:11:13,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-01 23:11:13,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-01 23:11:13,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-01 23:11:13,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:11:13" (1/1) ... [2021-06-01 23:11:13,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:11:13" (1/1) ... [2021-06-01 23:11:13,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:11:13" (1/1) ... [2021-06-01 23:11:13,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:11:13" (1/1) ... [2021-06-01 23:11:13,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:11:13" (1/1) ... [2021-06-01 23:11:13,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:11:13" (1/1) ... [2021-06-01 23:11:13,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:11:13" (1/1) ... [2021-06-01 23:11:13,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-01 23:11:13,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-01 23:11:13,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-01 23:11:13,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-01 23:11:13,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:11:13" (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 [2021-06-01 23:11:13,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-01 23:11:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-01 23:11:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-01 23:11:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-01 23:11:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-01 23:11:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-01 23:11:13,375 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-06-01 23:11:13,375 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-06-01 23:11:13,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-01 23:11:13,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-01 23:11:13,376 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-01 23:11:13,627 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-01 23:11:13,627 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-06-01 23:11:13,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.06 11:11:13 BoogieIcfgContainer [2021-06-01 23:11:13,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-01 23:11:13,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-01 23:11:13,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-01 23:11:13,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-01 23:11:13,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.06 11:11:12" (1/3) ... [2021-06-01 23:11:13,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e79fc74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.06 11:11:13, skipping insertion in model container [2021-06-01 23:11:13,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:11:13" (2/3) ... [2021-06-01 23:11:13,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e79fc74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.06 11:11:13, skipping insertion in model container [2021-06-01 23:11:13,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.06 11:11:13" (3/3) ... [2021-06-01 23:11:13,633 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2021-06-01 23:11:13,636 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-01 23:11:13,637 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-01 23:11:13,637 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-01 23:11:13,637 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-01 23:11:13,663 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,663 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,663 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,663 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,664 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,664 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,664 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,664 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,665 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,665 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,665 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,665 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,665 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,666 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,666 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,667 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,668 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,668 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,668 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,668 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,671 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,671 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,671 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,672 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,672 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,672 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:11:13,686 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-01 23:11:13,701 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 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 [2021-06-01 23:11:13,739 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-01 23:11:13,739 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-01 23:11:13,739 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-01 23:11:13,739 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-01 23:11:13,740 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-01 23:11:13,740 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-01 23:11:13,740 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-01 23:11:13,740 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == threadThread1of1ForFork0======== [2021-06-01 23:11:13,776 INFO L430 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 23:11:13,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 23:11:13,780 INFO L82 PathProgramCache]: Analyzing trace with hash 2070106771, now seen corresponding path program 1 times [2021-06-01 23:11:13,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 23:11:13,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820868524] [2021-06-01 23:11:13,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 23:11:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 23:11:13,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 23:11:13,913 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 23:11:13,913 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820868524] [2021-06-01 23:11:13,914 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820868524] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 23:11:13,914 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 23:11:13,914 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-01 23:11:13,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421531862] [2021-06-01 23:11:13,917 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-01 23:11:13,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 23:11:13,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-01 23:11:13,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-01 23:11:13,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-01 23:11:13,927 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-01 23:11:13,928 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 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) [2021-06-01 23:11:13,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-01 23:11:13,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-01 23:11:13,933 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-01 23:11:13,933 INFO L430 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 23:11:13,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 23:11:13,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1873593266, now seen corresponding path program 1 times [2021-06-01 23:11:13,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 23:11:13,934 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822389397] [2021-06-01 23:11:13,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 23:11:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 23:11:14,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 23:11:14,021 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 23:11:14,021 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822389397] [2021-06-01 23:11:14,021 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822389397] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 23:11:14,021 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 23:11:14,021 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-01 23:11:14,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20322498] [2021-06-01 23:11:14,022 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-01 23:11:14,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 23:11:14,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-01 23:11:14,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-01 23:11:14,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-01 23:11:14,023 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-01 23:11:14,023 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2021-06-01 23:11:14,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-01 23:11:14,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-01 23:11:14,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-01 23:11:14,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-01 23:11:14,040 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-01 23:11:14,040 INFO L430 AbstractCegarLoop]: === Iteration 3 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 23:11:14,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 23:11:14,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1674833581, now seen corresponding path program 1 times [2021-06-01 23:11:14,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 23:11:14,041 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38556023] [2021-06-01 23:11:14,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 23:11:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 23:11:14,090 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 23:11:14,090 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 23:11:14,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38556023] [2021-06-01 23:11:14,091 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38556023] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-01 23:11:14,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538093497] [2021-06-01 23:11:14,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-01 23:11:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 23:11:14,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-01 23:11:14,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-01 23:11:14,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 23:11:14,278 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538093497] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-01 23:11:14,278 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-01 23:11:14,278 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-06-01 23:11:14,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746256646] [2021-06-01 23:11:14,278 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-01 23:11:14,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 23:11:14,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-01 23:11:14,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-01 23:11:14,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-01 23:11:14,279 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-01 23:11:14,279 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) [2021-06-01 23:11:14,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-01 23:11:14,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-01 23:11:14,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-01 23:11:14,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-01 23:11:14,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-01 23:11:14,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-01 23:11:14,520 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-01 23:11:14,521 INFO L430 AbstractCegarLoop]: === Iteration 4 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 23:11:14,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 23:11:14,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1206347922, now seen corresponding path program 2 times [2021-06-01 23:11:14,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 23:11:14,521 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111847086] [2021-06-01 23:11:14,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 23:11:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 23:11:14,586 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 23:11:14,586 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 23:11:14,586 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111847086] [2021-06-01 23:11:14,586 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111847086] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-01 23:11:14,586 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003799566] [2021-06-01 23:11:14,586 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-01 23:11:14,645 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-01 23:11:14,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-01 23:11:14,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-01 23:11:14,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-01 23:11:14,745 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 23:11:14,745 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003799566] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-01 23:11:14,745 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-01 23:11:14,745 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-01 23:11:14,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918011619] [2021-06-01 23:11:14,746 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-01 23:11:14,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 23:11:14,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-01 23:11:14,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-06-01 23:11:14,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-01 23:11:14,747 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-01 23:11:14,747 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 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) [2021-06-01 23:11:14,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-01 23:11:14,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-01 23:11:14,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-01 23:11:14,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-01 23:11:14,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-01 23:11:14,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-01 23:11:14,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-01 23:11:14,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-01 23:11:15,012 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-01 23:11:15,013 INFO L430 AbstractCegarLoop]: === Iteration 5 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 23:11:15,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 23:11:15,014 INFO L82 PathProgramCache]: Analyzing trace with hash -119712307, now seen corresponding path program 3 times [2021-06-01 23:11:15,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 23:11:15,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494317509] [2021-06-01 23:11:15,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 23:11:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 23:11:15,111 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 23:11:15,111 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 23:11:15,111 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494317509] [2021-06-01 23:11:15,111 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494317509] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-01 23:11:15,111 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920467999] [2021-06-01 23:11:15,111 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-01 23:11:15,176 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-01 23:11:15,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-01 23:11:15,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-01 23:11:15,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-01 23:11:15,319 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-01 23:11:15,319 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920467999] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 23:11:15,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-01 23:11:15,320 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2021-06-01 23:11:15,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236052310] [2021-06-01 23:11:15,320 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-01 23:11:15,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 23:11:15,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-01 23:11:15,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-06-01 23:11:15,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-01 23:11:15,322 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-01 23:11:15,322 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) [2021-06-01 23:11:15,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-01 23:11:15,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-01 23:11:15,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-01 23:11:15,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-01 23:11:15,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-01 23:11:15,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-01 23:11:15,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-01 23:11:15,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-01 23:11:15,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-01 23:11:15,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-01 23:11:15,628 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-01 23:11:15,629 INFO L430 AbstractCegarLoop]: === Iteration 6 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 23:11:15,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 23:11:15,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1774520644, now seen corresponding path program 1 times [2021-06-01 23:11:15,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 23:11:15,630 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961833011] [2021-06-01 23:11:15,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 23:11:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-01 23:11:15,649 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-01 23:11:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-01 23:11:15,661 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-01 23:11:15,679 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-01 23:11:15,679 INFO L655 BasicCegarLoop]: Counterexample might be feasible [2021-06-01 23:11:15,680 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-01 23:11:15,684 INFO L301 ceAbstractionStarter]: Result for error location threadThread1of1ForFork0 was UNSAFE (1/3) [2021-06-01 23:11:15,689 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-01 23:11:15,692 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-01 23:11:15,692 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-01 23:11:15,692 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-01 23:11:15,692 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-01 23:11:15,692 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-01 23:11:15,693 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-01 23:11:15,693 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-01 23:11:15,693 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-01 23:11:15,722 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (2/3) [2021-06-01 23:11:15,722 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-01 23:11:15,735 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-01 23:11:15,736 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-01 23:11:15,736 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-01 23:11:15,736 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-01 23:11:15,736 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-01 23:11:15,736 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-01 23:11:15,736 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-01 23:11:15,736 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread======== [2021-06-01 23:11:15,760 INFO L301 ceAbstractionStarter]: Result for error location thread was SAFE (3/3) [2021-06-01 23:11:15,760 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-01 23:11:15,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.06 11:11:15 BasicIcfg [2021-06-01 23:11:15,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-01 23:11:15,791 INFO L168 Benchmark]: Toolchain (without parser) took 2915.66 ms. Allocated memory is still 373.3 MB. Free memory was 335.3 MB in the beginning and 249.9 MB in the end (delta: 85.4 MB). Peak memory consumption was 85.7 MB. Max. memory is 16.0 GB. [2021-06-01 23:11:15,791 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 373.3 MB. Free memory was 353.1 MB in the beginning and 353.0 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-01 23:11:15,791 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.30 ms. Allocated memory is still 373.3 MB. Free memory was 335.1 MB in the beginning and 335.8 MB in the end (delta: -720.3 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-06-01 23:11:15,791 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.97 ms. Allocated memory is still 373.3 MB. Free memory was 335.8 MB in the beginning and 333.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-01 23:11:15,791 INFO L168 Benchmark]: Boogie Preprocessor took 27.49 ms. Allocated memory is still 373.3 MB. Free memory was 333.7 MB in the beginning and 332.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-01 23:11:15,791 INFO L168 Benchmark]: RCFGBuilder took 319.53 ms. Allocated memory is still 373.3 MB. Free memory was 332.7 MB in the beginning and 307.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-01 23:11:15,791 INFO L168 Benchmark]: TraceAbstraction took 2161.51 ms. Allocated memory is still 373.3 MB. Free memory was 307.5 MB in the beginning and 249.9 MB in the end (delta: 57.6 MB). Peak memory consumption was 59.7 MB. Max. memory is 16.0 GB. [2021-06-01 23:11:15,792 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 373.3 MB. Free memory was 353.1 MB in the beginning and 353.0 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 355.30 ms. Allocated memory is still 373.3 MB. Free memory was 335.1 MB in the beginning and 335.8 MB in the end (delta: -720.3 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 41.97 ms. Allocated memory is still 373.3 MB. Free memory was 335.8 MB in the beginning and 333.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.49 ms. Allocated memory is still 373.3 MB. Free memory was 333.7 MB in the beginning and 332.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 319.53 ms. Allocated memory is still 373.3 MB. Free memory was 332.7 MB in the beginning and 307.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2161.51 ms. Allocated memory is still 373.3 MB. Free memory was 307.5 MB in the beginning and 249.9 MB in the end (delta: 57.6 MB). Peak memory consumption was 59.7 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: 179, positive: 126, positive conditional: 126, positive unconditional: 0, negative: 53, negative conditional: 53, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 126, positive: 126, positive conditional: 126, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 126, positive: 126, positive conditional: 0, positive unconditional: 126, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 29, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 29, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 126, positive: 97, positive conditional: 0, positive unconditional: 97, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 29, unknown conditional: 0, unknown unconditional: 29] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 ], Maximal queried relation: 0, Independence queries for same thread: 53 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 169, positive: 141, positive conditional: 141, positive unconditional: 0, negative: 28, negative conditional: 28, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 143, positive: 141, positive conditional: 141, 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: 143, positive: 141, positive conditional: 0, positive unconditional: 141, 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: 143, positive: 141, positive conditional: 0, positive unconditional: 141, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 143, positive: 141, positive conditional: 0, positive unconditional: 141, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 17, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 143, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 143, unknown conditional: 0, unknown unconditional: 143] , Statistics on independence cache: Total cache size (in pairs): 143, Positive cache size: 141, Positive conditional cache size: 0, Positive unconditional cache size: 141, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 ], Maximal queried relation: 0, Independence queries for same thread: 26 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 169, positive: 141, positive conditional: 141, positive unconditional: 0, negative: 28, negative conditional: 28, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 143, positive: 141, positive conditional: 141, 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: 143, positive: 141, positive conditional: 0, positive unconditional: 141, 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: 143, positive: 141, positive conditional: 0, positive unconditional: 141, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 143, positive: 141, positive conditional: 0, positive unconditional: 141, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 143, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 143, unknown conditional: 0, unknown unconditional: 143] , Statistics on independence cache: Total cache size (in pairs): 143, Positive cache size: 141, Positive conditional cache size: 0, Positive unconditional cache size: 141, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 ], Maximal queried relation: 0, Independence queries for same thread: 26 - CounterExampleResult [Line: 704]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 pthread_mutex_t lock; VAL [lock={11:0}] [L698] 0 pthread_cond_t cond; VAL [cond={13:0}, lock={11:0}] [L699] 0 int x; VAL [cond={13:0}, lock={11:0}, x=0] [L709] 0 pthread_t t; VAL [cond={13:0}, lock={11:0}, x=0] [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={13:0}, lock={11:0}, x=0] [L713] 0 int i = 0; VAL [arg={0:0}, cond={13:0}, lock={11:0}, x=0] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={13:0}, lock={11:0}, x=0] [L714] 0 x = i VAL [arg={0:0}, cond={13:0}, lock={11:0}, x=0] [L713] 0 i++ VAL [arg={0:0}, cond={13:0}, lock={11:0}, x=0] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={13:0}, lock={11:0}, x=0] [L714] 0 x = i VAL [arg={0:0}, cond={13:0}, lock={11:0}, x=1] [L713] 0 i++ VAL [arg={0:0}, cond={13:0}, lock={11:0}, x=1] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={13:0}, lock={11:0}, x=1] [L714] 0 x = i VAL [arg={0:0}, cond={13:0}, lock={11:0}, x=2] [L713] 0 i++ VAL [arg={0:0}, cond={13:0}, lock={11:0}, x=2] [L713] COND TRUE 0 i <= 42 VAL [arg={0:0}, cond={13:0}, lock={11:0}, x=2] [L714] 0 x = i VAL [arg={0:0}, cond={13:0}, lock={11:0}, x=3] [L713] 0 i++ VAL [arg={0:0}, cond={13:0}, lock={11:0}, x=3] [L704] 1 !(x == 42) ? reach_error() : (void)0 VAL [arg={0:0}, arg={0:0}, cond={13:0}, lock={11:0}, x=3] [L704] 1 reach_error() VAL [arg={0:0}, arg={0:0}, cond={13:0}, lock={11:0}, x=3] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: threadThread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 80 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1965.8ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.7ms, PartialOrderReductionTime: 222.8ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 30, 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: 37.8ms SsaConstructionTime, 149.6ms SatisfiabilityAnalysisTime, 632.9ms InterpolantComputationTime, 526 NumberOfCodeBlocks, 521 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 452 ConstructedInterpolants, 0 QuantifiedInterpolants, 632 SizeOfPredicates, 10 NumberOfNonLiveVariables, 436 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 18/52 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 80 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 32.4ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.9ms, PartialOrderReductionTime: 27.5ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, 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: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thread with 1 thread instances CFG has 3 procedures, 80 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 36.8ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.0ms, PartialOrderReductionTime: 22.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, 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: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...