/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-NewStatesSleepUncond-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9b7772ad7705253c1305067fc38dc9bc7271fbe3-9b7772a [2021-04-15 11:49:37,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-15 11:49:37,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-15 11:49:37,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-15 11:49:37,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-15 11:49:37,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-15 11:49:37,490 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-15 11:49:37,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-15 11:49:37,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-15 11:49:37,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-15 11:49:37,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-15 11:49:37,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-15 11:49:37,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-15 11:49:37,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-15 11:49:37,507 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-15 11:49:37,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-15 11:49:37,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-15 11:49:37,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-15 11:49:37,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-15 11:49:37,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-15 11:49:37,525 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-NewStatesSleepUncond-NoLbe.epf [2021-04-15 11:49:37,559 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-15 11:49:37,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-15 11:49:37,560 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-04-15 11:49:37,560 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-04-15 11:49:37,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-15 11:49:37,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-15 11:49:37,563 INFO L138 SettingsManager]: * Use SBE=true [2021-04-15 11:49:37,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-15 11:49:37,564 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-15 11:49:37,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-15 11:49:37,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-15 11:49:37,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-15 11:49:37,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-15 11:49:37,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-15 11:49:37,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-15 11:49:37,565 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-15 11:49:37,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-15 11:49:37,565 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-15 11:49:37,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-15 11:49:37,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-15 11:49:37,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-15 11:49:37,566 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-15 11:49:37,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-15 11:49:37,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-15 11:49:37,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-15 11:49:37,566 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-15 11:49:37,566 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-15 11:49:37,567 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-15 11:49:37,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-15 11:49:37,567 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-04-15 11:49:37,567 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-04-15 11:49:37,567 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-15 11:49:37,567 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-04-15 11:49:37,568 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-15 11:49:37,568 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-15 11:49:37,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-15 11:49:37,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-15 11:49:37,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-15 11:49:37,870 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-15 11:49:37,870 INFO L275 PluginConnector]: CDTParser initialized [2021-04-15 11:49:37,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i [2021-04-15 11:49:37,927 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/316625b70/31ae570e5f2a49f393e498951a8924d5/FLAG09f7aa61a [2021-04-15 11:49:38,395 INFO L306 CDTParser]: Found 1 translation units. [2021-04-15 11:49:38,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i [2021-04-15 11:49:38,410 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/316625b70/31ae570e5f2a49f393e498951a8924d5/FLAG09f7aa61a [2021-04-15 11:49:38,664 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/316625b70/31ae570e5f2a49f393e498951a8924d5 [2021-04-15 11:49:38,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-15 11:49:38,668 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-15 11:49:38,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-15 11:49:38,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-15 11:49:38,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-15 11:49:38,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 11:49:38" (1/1) ... [2021-04-15 11:49:38,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bf41e93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:49:38, skipping insertion in model container [2021-04-15 11:49:38,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 11:49:38" (1/1) ... [2021-04-15 11:49:38,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-15 11:49:38,732 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-15 11:49:38,973 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i[30382,30395] [2021-04-15 11:49:38,982 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i[30752,30765] [2021-04-15 11:49:38,991 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-15 11:49:39,001 INFO L203 MainTranslator]: Completed pre-run [2021-04-15 11:49:39,040 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i[30382,30395] [2021-04-15 11:49:39,046 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i[30752,30765] [2021-04-15 11:49:39,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-15 11:49:39,116 INFO L208 MainTranslator]: Completed translation [2021-04-15 11:49:39,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:49:39 WrapperNode [2021-04-15 11:49:39,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-15 11:49:39,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-15 11:49:39,119 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-15 11:49:39,119 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-15 11:49:39,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:49:39" (1/1) ... [2021-04-15 11:49:39,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:49:39" (1/1) ... [2021-04-15 11:49:39,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-15 11:49:39,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-15 11:49:39,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-15 11:49:39,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-15 11:49:39,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:49:39" (1/1) ... [2021-04-15 11:49:39,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:49:39" (1/1) ... [2021-04-15 11:49:39,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:49:39" (1/1) ... [2021-04-15 11:49:39,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:49:39" (1/1) ... [2021-04-15 11:49:39,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:49:39" (1/1) ... [2021-04-15 11:49:39,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:49:39" (1/1) ... [2021-04-15 11:49:39,206 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:49:39" (1/1) ... [2021-04-15 11:49:39,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-15 11:49:39,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-15 11:49:39,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-15 11:49:39,209 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-15 11:49:39,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:49:39" (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 [2021-04-15 11:49:39,267 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-04-15 11:49:39,268 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-04-15 11:49:39,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-15 11:49:39,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-15 11:49:39,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-15 11:49:39,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-15 11:49:39,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-15 11:49:39,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-15 11:49:39,270 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-15 11:49:39,814 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-15 11:49:39,815 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-04-15 11:49:39,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 11:49:39 BoogieIcfgContainer [2021-04-15 11:49:39,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-15 11:49:39,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-15 11:49:39,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-15 11:49:39,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-15 11:49:39,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 11:49:38" (1/3) ... [2021-04-15 11:49:39,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61486745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 11:49:39, skipping insertion in model container [2021-04-15 11:49:39,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:49:39" (2/3) ... [2021-04-15 11:49:39,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61486745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 11:49:39, skipping insertion in model container [2021-04-15 11:49:39,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 11:49:39" (3/3) ... [2021-04-15 11:49:39,822 INFO L111 eAbstractionObserver]: Analyzing ICFG 23_lu-fig2.fixed.i [2021-04-15 11:49:39,826 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-04-15 11:49:39,826 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-15 11:49:39,830 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-15 11:49:39,830 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-15 11:49:39,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,853 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,854 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,854 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,854 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,854 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,854 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,854 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,854 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,855 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,855 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,855 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,855 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,855 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,855 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,855 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,855 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,856 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,856 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,856 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,856 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,857 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,857 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,857 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,857 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,857 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,857 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,858 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,858 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,858 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,859 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,859 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,860 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,860 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,861 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,861 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,861 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,861 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,862 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,862 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,862 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 11:49:39,864 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-15 11:49:39,876 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-04-15 11:49:39,909 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-15 11:49:39,909 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-15 11:49:39,909 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-15 11:49:39,909 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-15 11:49:39,909 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-15 11:49:39,909 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-15 11:49:39,910 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-15 11:49:39,910 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-15 11:49:39,938 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 11:49:39,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 11:49:39,946 INFO L82 PathProgramCache]: Analyzing trace with hash 273719750, now seen corresponding path program 1 times [2021-04-15 11:49:39,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 11:49:39,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637915565] [2021-04-15 11:49:39,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 11:49:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 11:49:40,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 11:49:40,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637915565] [2021-04-15 11:49:40,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 11:49:40,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-15 11:49:40,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253468302] [2021-04-15 11:49:40,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-04-15 11:49:40,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 11:49:40,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-04-15 11:49:40,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-04-15 11:49:40,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 11:49:40,130 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 11:49:40,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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) [2021-04-15 11:49:40,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 11:49:40,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 11:49:40,137 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-15 11:49:40,137 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 11:49:40,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 11:49:40,137 INFO L82 PathProgramCache]: Analyzing trace with hash 273749541, now seen corresponding path program 1 times [2021-04-15 11:49:40,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 11:49:40,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109754325] [2021-04-15 11:49:40,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 11:49:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 11:49:40,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 11:49:40,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109754325] [2021-04-15 11:49:40,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 11:49:40,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-15 11:49:40,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883027470] [2021-04-15 11:49:40,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-15 11:49:40,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 11:49:40,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-15 11:49:40,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-15 11:49:40,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 11:49:40,211 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 11:49:40,212 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-04-15 11:49:40,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 11:49:40,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 11:49:40,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 11:49:40,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 11:49:40,259 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-15 11:49:40,259 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 11:49:40,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 11:49:40,260 INFO L82 PathProgramCache]: Analyzing trace with hash -98081095, now seen corresponding path program 1 times [2021-04-15 11:49:40,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 11:49:40,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658102115] [2021-04-15 11:49:40,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 11:49:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 11:49:40,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 11:49:40,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658102115] [2021-04-15 11:49:40,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 11:49:40,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-15 11:49:40,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768360035] [2021-04-15 11:49:40,346 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-15 11:49:40,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 11:49:40,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-15 11:49:40,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-15 11:49:40,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 11:49:40,348 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 11:49:40,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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) [2021-04-15 11:49:40,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 11:49:40,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 11:49:40,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 11:49:40,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 11:49:40,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 11:49:40,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 11:49:40,367 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-15 11:49:40,367 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 11:49:40,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 11:49:40,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1356167129, now seen corresponding path program 1 times [2021-04-15 11:49:40,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 11:49:40,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140872802] [2021-04-15 11:49:40,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 11:49:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 11:49:40,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 11:49:40,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140872802] [2021-04-15 11:49:40,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 11:49:40,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-15 11:49:40,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134318344] [2021-04-15 11:49:40,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-15 11:49:40,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 11:49:40,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-15 11:49:40,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-15 11:49:40,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 11:49:40,465 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 11:49:40,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2021-04-15 11:49:40,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 11:49:40,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 11:49:40,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 11:49:40,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 11:49:40,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 11:49:40,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 11:49:40,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 11:49:40,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 11:49:40,519 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-15 11:49:40,519 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 11:49:40,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 11:49:40,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1112063773, now seen corresponding path program 1 times [2021-04-15 11:49:40,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 11:49:40,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253683131] [2021-04-15 11:49:40,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 11:49:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 11:49:40,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-15 11:49:40,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253683131] [2021-04-15 11:49:40,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 11:49:40,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-15 11:49:40,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350231720] [2021-04-15 11:49:40,596 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-15 11:49:40,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 11:49:40,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-15 11:49:40,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-15 11:49:40,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 11:49:40,598 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-04-15 11:49:40,598 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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) [2021-04-15 11:49:40,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 11:49:40,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 11:49:40,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-04-15 11:49:40,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-04-15 11:49:40,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-04-15 11:49:40,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-15 11:49:40,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 11:49:40,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 11:49:40,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 11:49:40,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 11:49:40,665 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-15 11:49:40,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 11:49:40 BasicIcfg [2021-04-15 11:49:40,672 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-15 11:49:40,676 INFO L168 Benchmark]: Toolchain (without parser) took 2004.71 ms. Allocated memory was 255.9 MB in the beginning and 352.3 MB in the end (delta: 96.5 MB). Free memory was 234.9 MB in the beginning and 267.5 MB in the end (delta: -32.7 MB). Peak memory consumption was 63.4 MB. Max. memory is 16.0 GB. [2021-04-15 11:49:40,677 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-15 11:49:40,677 INFO L168 Benchmark]: CACSL2BoogieTranslator took 449.29 ms. Allocated memory was 255.9 MB in the beginning and 352.3 MB in the end (delta: 96.5 MB). Free memory was 234.9 MB in the beginning and 316.0 MB in the end (delta: -81.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-04-15 11:49:40,677 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.45 ms. Allocated memory is still 352.3 MB. Free memory was 316.0 MB in the beginning and 313.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-15 11:49:40,678 INFO L168 Benchmark]: Boogie Preprocessor took 30.71 ms. Allocated memory is still 352.3 MB. Free memory was 313.9 MB in the beginning and 312.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-15 11:49:40,678 INFO L168 Benchmark]: RCFGBuilder took 607.42 ms. Allocated memory is still 352.3 MB. Free memory was 312.6 MB in the beginning and 328.3 MB in the end (delta: -15.8 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.0 GB. [2021-04-15 11:49:40,680 INFO L168 Benchmark]: TraceAbstraction took 854.52 ms. Allocated memory is still 352.3 MB. Free memory was 327.3 MB in the beginning and 267.5 MB in the end (delta: 59.8 MB). Peak memory consumption was 60.8 MB. Max. memory is 16.0 GB. [2021-04-15 11:49:40,684 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 449.29 ms. Allocated memory was 255.9 MB in the beginning and 352.3 MB in the end (delta: 96.5 MB). Free memory was 234.9 MB in the beginning and 316.0 MB in the end (delta: -81.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 58.45 ms. Allocated memory is still 352.3 MB. Free memory was 316.0 MB in the beginning and 313.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.71 ms. Allocated memory is still 352.3 MB. Free memory was 313.9 MB in the beginning and 312.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 607.42 ms. Allocated memory is still 352.3 MB. Free memory was 312.6 MB in the beginning and 328.3 MB in the end (delta: -15.8 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 854.52 ms. Allocated memory is still 352.3 MB. Free memory was 327.3 MB in the beginning and 267.5 MB in the end (delta: 59.8 MB). Peak memory consumption was 60.8 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: 285, positive: 225, positive conditional: 225, positive unconditional: 0, negative: 60, negative conditional: 60, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 233, positive: 225, positive conditional: 0, positive unconditional: 225, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 112, positive: 109, positive conditional: 0, positive unconditional: 109, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 112, positive: 108, positive conditional: 0, positive unconditional: 108, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 34, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 233, positive: 116, positive conditional: 0, positive unconditional: 116, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 112, unknown conditional: 0, unknown unconditional: 112] , Statistics on independence cache: Total cache size (in pairs): 112, Positive cache size: 109, Positive conditional cache size: 0, Positive unconditional cache size: 109, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Independence queries for same thread: 52 - PositiveResult [Line: 707]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 721]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 46 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 779.8ms, OverallIterations: 5, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.0ms, PartialOrderReductionTime: 205.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 16, 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: 17.9ms SsaConstructionTime, 86.0ms SatisfiabilityAnalysisTime, 280.1ms InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 270 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 1/1 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...