/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-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-22 00:50:04,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-22 00:50:04,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-22 00:50:04,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-22 00:50:04,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-22 00:50:04,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-22 00:50:04,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-22 00:50:04,288 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2021-05-22 00:50:04,326 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-22 00:50:04,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-22 00:50:04,327 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-22 00:50:04,328 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-22 00:50:04,330 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-22 00:50:04,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-22 00:50:04,331 INFO L138 SettingsManager]: * Use SBE=true [2021-05-22 00:50:04,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-22 00:50:04,331 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-22 00:50:04,331 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-22 00:50:04,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-22 00:50:04,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-22 00:50:04,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-22 00:50:04,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-22 00:50:04,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-22 00:50:04,333 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-22 00:50:04,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-22 00:50:04,333 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-22 00:50:04,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-22 00:50:04,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-22 00:50:04,334 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-22 00:50:04,334 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-22 00:50:04,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-22 00:50:04,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-22 00:50:04,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-22 00:50:04,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-22 00:50:04,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-22 00:50:04,335 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-22 00:50:04,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-22 00:50:04,335 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-22 00:50:04,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-22 00:50:04,335 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-05-22 00:50:04,336 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-22 00:50:04,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-22 00:50:04,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-22 00:50:04,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-22 00:50:04,684 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-22 00:50:04,684 INFO L275 PluginConnector]: CDTParser initialized [2021-05-22 00:50:04,685 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2021-05-22 00:50:04,748 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fa9e0fb6/43ab8ae6a4c3452287daf779820a286d/FLAG362568468 [2021-05-22 00:50:05,220 INFO L306 CDTParser]: Found 1 translation units. [2021-05-22 00:50:05,221 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2021-05-22 00:50:05,246 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fa9e0fb6/43ab8ae6a4c3452287daf779820a286d/FLAG362568468 [2021-05-22 00:50:05,550 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fa9e0fb6/43ab8ae6a4c3452287daf779820a286d [2021-05-22 00:50:05,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-22 00:50:05,556 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-22 00:50:05,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-22 00:50:05,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-22 00:50:05,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-22 00:50:05,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.05 12:50:05" (1/1) ... [2021-05-22 00:50:05,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35ce3023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:05, skipping insertion in model container [2021-05-22 00:50:05,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.05 12:50:05" (1/1) ... [2021-05-22 00:50:05,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-22 00:50:05,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-22 00:50:06,092 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i[29913,29926] [2021-05-22 00:50:06,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-22 00:50:06,127 INFO L203 MainTranslator]: Completed pre-run [2021-05-22 00:50:06,163 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i[29913,29926] [2021-05-22 00:50:06,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-22 00:50:06,222 INFO L208 MainTranslator]: Completed translation [2021-05-22 00:50:06,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:06 WrapperNode [2021-05-22 00:50:06,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-22 00:50:06,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-22 00:50:06,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-22 00:50:06,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-22 00:50:06,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:06" (1/1) ... [2021-05-22 00:50:06,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:06" (1/1) ... [2021-05-22 00:50:06,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-22 00:50:06,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-22 00:50:06,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-22 00:50:06,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-22 00:50:06,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:06" (1/1) ... [2021-05-22 00:50:06,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:06" (1/1) ... [2021-05-22 00:50:06,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:06" (1/1) ... [2021-05-22 00:50:06,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:06" (1/1) ... [2021-05-22 00:50:06,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:06" (1/1) ... [2021-05-22 00:50:06,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:06" (1/1) ... [2021-05-22 00:50:06,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:06" (1/1) ... [2021-05-22 00:50:06,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-22 00:50:06,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-22 00:50:06,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-22 00:50:06,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-22 00:50:06,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:06" (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 [2021-05-22 00:50:06,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-22 00:50:06,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-22 00:50:06,373 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-05-22 00:50:06,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-22 00:50:06,374 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-05-22 00:50:06,375 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-05-22 00:50:06,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-22 00:50:06,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-22 00:50:06,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-22 00:50:06,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-22 00:50:06,376 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-22 00:50:06,799 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-22 00:50:06,799 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-05-22 00:50:06,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.05 12:50:06 BoogieIcfgContainer [2021-05-22 00:50:06,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-22 00:50:06,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-22 00:50:06,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-22 00:50:06,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-22 00:50:06,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.05 12:50:05" (1/3) ... [2021-05-22 00:50:06,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a3e189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.05 12:50:06, skipping insertion in model container [2021-05-22 00:50:06,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:50:06" (2/3) ... [2021-05-22 00:50:06,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a3e189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.05 12:50:06, skipping insertion in model container [2021-05-22 00:50:06,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.05 12:50:06" (3/3) ... [2021-05-22 00:50:06,807 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2021-05-22 00:50:06,812 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-22 00:50:06,812 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-22 00:50:06,813 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-22 00:50:06,813 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-22 00:50:06,835 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,835 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,835 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,835 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,836 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,836 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,836 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,836 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,836 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,836 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,837 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,837 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,837 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,837 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,837 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,837 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,838 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,838 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,838 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,838 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,838 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,838 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,839 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,839 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,839 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,839 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,840 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,840 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,840 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,840 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,840 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,841 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,841 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,841 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,841 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,841 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,841 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,841 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,842 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,842 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,842 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,842 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,842 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,843 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,843 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,843 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,843 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,843 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,843 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,843 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,844 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,844 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,844 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,844 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,844 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,844 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,844 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,845 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,845 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,845 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,845 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,845 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,845 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,845 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,846 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,846 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,846 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,846 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,846 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,846 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,847 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,847 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,849 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,849 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,849 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,850 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,850 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,850 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,850 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,850 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,850 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,850 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,851 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,851 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,851 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:50:06,857 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-05-22 00:50:06,873 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-22 00:50:06,889 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-22 00:50:06,889 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-22 00:50:06,889 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-22 00:50:06,890 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-22 00:50:06,890 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-22 00:50:06,890 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-22 00:50:06,890 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-22 00:50:06,890 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-22 00:50:06,900 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 102 transitions, 212 flow [2021-05-22 00:50:06,940 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 606 states, 604 states have (on average 2.1887417218543046) internal successors, (1322), 605 states have internal predecessors, (1322), 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) [2021-05-22 00:50:06,945 INFO L276 IsEmpty]: Start isEmpty. Operand has 606 states, 604 states have (on average 2.1887417218543046) internal successors, (1322), 605 states have internal predecessors, (1322), 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) [2021-05-22 00:50:06,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-05-22 00:50:06,955 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:50:06,956 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:50:06,957 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:50:06,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:50:06,962 INFO L82 PathProgramCache]: Analyzing trace with hash -206557193, now seen corresponding path program 1 times [2021-05-22 00:50:06,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:50:06,969 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579190725] [2021-05-22 00:50:06,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:50:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:50:07,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:50:07,254 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:50:07,255 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579190725] [2021-05-22 00:50:07,255 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579190725] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:50:07,255 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:50:07,256 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-05-22 00:50:07,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954773304] [2021-05-22 00:50:07,259 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-22 00:50:07,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:50:07,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-22 00:50:07,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-05-22 00:50:07,277 INFO L87 Difference]: Start difference. First operand has 606 states, 604 states have (on average 2.1887417218543046) internal successors, (1322), 605 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 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) [2021-05-22 00:50:07,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:50:07,736 INFO L93 Difference]: Finished difference Result 747 states and 1364 transitions. [2021-05-22 00:50:07,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-22 00:50:07,738 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-05-22 00:50:07,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:50:07,754 INFO L225 Difference]: With dead ends: 747 [2021-05-22 00:50:07,754 INFO L226 Difference]: Without dead ends: 341 [2021-05-22 00:50:07,757 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 290.9ms TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2021-05-22 00:50:07,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-05-22 00:50:07,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2021-05-22 00:50:07,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 340 states have (on average 1.776470588235294) internal successors, (604), 340 states have internal predecessors, (604), 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) [2021-05-22 00:50:07,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 604 transitions. [2021-05-22 00:50:07,825 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 604 transitions. Word has length 49 [2021-05-22 00:50:07,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:50:07,826 INFO L482 AbstractCegarLoop]: Abstraction has 341 states and 604 transitions. [2021-05-22 00:50:07,826 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 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) [2021-05-22 00:50:07,826 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 604 transitions. [2021-05-22 00:50:07,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-05-22 00:50:07,832 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:50:07,833 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:50:07,833 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-22 00:50:07,833 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:50:07,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:50:07,837 INFO L82 PathProgramCache]: Analyzing trace with hash -560532625, now seen corresponding path program 1 times [2021-05-22 00:50:07,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:50:07,839 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064520965] [2021-05-22 00:50:07,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:50:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:50:07,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:50:07,959 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:50:07,960 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064520965] [2021-05-22 00:50:07,960 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064520965] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:50:07,960 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:50:07,961 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-22 00:50:07,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816593415] [2021-05-22 00:50:07,963 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-22 00:50:07,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:50:07,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-22 00:50:07,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-05-22 00:50:07,965 INFO L87 Difference]: Start difference. First operand 341 states and 604 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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) [2021-05-22 00:50:08,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:50:08,039 INFO L93 Difference]: Finished difference Result 163 states and 244 transitions. [2021-05-22 00:50:08,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-22 00:50:08,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-05-22 00:50:08,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:50:08,041 INFO L225 Difference]: With dead ends: 163 [2021-05-22 00:50:08,041 INFO L226 Difference]: Without dead ends: 151 [2021-05-22 00:50:08,042 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.0ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-05-22 00:50:08,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-05-22 00:50:08,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2021-05-22 00:50:08,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 150 states have (on average 1.4933333333333334) internal successors, (224), 150 states have internal predecessors, (224), 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) [2021-05-22 00:50:08,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 224 transitions. [2021-05-22 00:50:08,052 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 224 transitions. Word has length 59 [2021-05-22 00:50:08,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:50:08,053 INFO L482 AbstractCegarLoop]: Abstraction has 151 states and 224 transitions. [2021-05-22 00:50:08,053 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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) [2021-05-22 00:50:08,053 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 224 transitions. [2021-05-22 00:50:08,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-05-22 00:50:08,055 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:50:08,056 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:50:08,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-22 00:50:08,056 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:50:08,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:50:08,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1866449416, now seen corresponding path program 1 times [2021-05-22 00:50:08,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:50:08,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424426571] [2021-05-22 00:50:08,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:50:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:50:08,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:50:08,467 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:50:08,467 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424426571] [2021-05-22 00:50:08,467 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424426571] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:50:08,467 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:50:08,467 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-05-22 00:50:08,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589468701] [2021-05-22 00:50:08,468 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-22 00:50:08,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:50:08,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-22 00:50:08,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2021-05-22 00:50:08,469 INFO L87 Difference]: Start difference. First operand 151 states and 224 transitions. Second operand has 17 states, 17 states have (on average 4.352941176470588) internal successors, (74), 17 states have internal predecessors, (74), 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) [2021-05-22 00:50:09,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:50:09,087 INFO L93 Difference]: Finished difference Result 145 states and 214 transitions. [2021-05-22 00:50:09,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-22 00:50:09,087 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.352941176470588) internal successors, (74), 17 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-05-22 00:50:09,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:50:09,087 INFO L225 Difference]: With dead ends: 145 [2021-05-22 00:50:09,088 INFO L226 Difference]: Without dead ends: 0 [2021-05-22 00:50:09,088 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 707.1ms TimeCoverageRelationStatistics Valid=229, Invalid=961, Unknown=0, NotChecked=0, Total=1190 [2021-05-22 00:50:09,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-22 00:50:09,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-22 00:50:09,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-05-22 00:50:09,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-22 00:50:09,089 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 74 [2021-05-22 00:50:09,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:50:09,089 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-22 00:50:09,089 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 4.352941176470588) internal successors, (74), 17 states have internal predecessors, (74), 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) [2021-05-22 00:50:09,089 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-22 00:50:09,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-22 00:50:09,090 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-22 00:50:09,090 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-05-22 00:50:09,092 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-22 00:50:09,093 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-22 00:50:09,093 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-22 00:50:09,093 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-22 00:50:09,093 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-22 00:50:09,093 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-22 00:50:09,093 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-22 00:50:09,093 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-22 00:50:09,094 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-22 00:50:09,096 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 102 transitions, 212 flow [2021-05-22 00:50:09,105 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 606 states, 604 states have (on average 2.1887417218543046) internal successors, (1322), 605 states have internal predecessors, (1322), 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) [2021-05-22 00:50:09,106 INFO L276 IsEmpty]: Start isEmpty. Operand has 606 states, 604 states have (on average 2.1887417218543046) internal successors, (1322), 605 states have internal predecessors, (1322), 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) [2021-05-22 00:50:09,107 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-22 00:50:09,108 INFO L315 ceAbstractionStarter]: Result for error location InUseError was SAFE (2/2) [2021-05-22 00:50:09,108 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-22 00:50:09,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.05 12:50:09 BasicIcfg [2021-05-22 00:50:09,110 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-22 00:50:09,111 INFO L168 Benchmark]: Toolchain (without parser) took 3556.28 ms. Allocated memory is still 381.7 MB. Free memory was 343.6 MB in the beginning and 219.6 MB in the end (delta: 124.0 MB). Peak memory consumption was 126.7 MB. Max. memory is 16.0 GB. [2021-05-22 00:50:09,112 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 381.7 MB. Free memory is still 361.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-05-22 00:50:09,112 INFO L168 Benchmark]: CACSL2BoogieTranslator took 641.44 ms. Allocated memory is still 381.7 MB. Free memory was 343.4 MB in the beginning and 344.1 MB in the end (delta: -662.6 kB). Peak memory consumption was 9.5 MB. Max. memory is 16.0 GB. [2021-05-22 00:50:09,113 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.37 ms. Allocated memory is still 381.7 MB. Free memory was 344.1 MB in the beginning and 342.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-22 00:50:09,113 INFO L168 Benchmark]: Boogie Preprocessor took 21.62 ms. Allocated memory is still 381.7 MB. Free memory was 342.0 MB in the beginning and 339.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-22 00:50:09,113 INFO L168 Benchmark]: RCFGBuilder took 521.58 ms. Allocated memory is still 381.7 MB. Free memory was 339.9 MB in the beginning and 311.5 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-05-22 00:50:09,114 INFO L168 Benchmark]: TraceAbstraction took 2308.47 ms. Allocated memory is still 381.7 MB. Free memory was 311.5 MB in the beginning and 219.6 MB in the end (delta: 92.0 MB). Peak memory consumption was 92.0 MB. Max. memory is 16.0 GB. [2021-05-22 00:50:09,116 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 381.7 MB. Free memory is still 361.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 641.44 ms. Allocated memory is still 381.7 MB. Free memory was 343.4 MB in the beginning and 344.1 MB in the end (delta: -662.6 kB). Peak memory consumption was 9.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 33.37 ms. Allocated memory is still 381.7 MB. Free memory was 344.1 MB in the beginning and 342.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 21.62 ms. Allocated memory is still 381.7 MB. Free memory was 342.0 MB in the beginning and 339.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 521.58 ms. Allocated memory is still 381.7 MB. Free memory was 339.9 MB in the beginning and 311.5 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2308.47 ms. Allocated memory is still 381.7 MB. Free memory was 311.5 MB in the beginning and 219.6 MB in the end (delta: 92.0 MB). Peak memory consumption was 92.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 684]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 123 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2203.4ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 23.3ms, AutomataDifference: 1193.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 50.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 296 SDtfs, 715 SDslu, 1355 SDs, 0 SdLazy, 351 SolverSat, 54 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 245.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 1039.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=606occurred in iteration=0, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 68.1ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 13.4ms SsaConstructionTime, 116.4ms SatisfiabilityAnalysisTime, 596.3ms InterpolantComputationTime, 182 NumberOfCodeBlocks, 182 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 179 ConstructedInterpolants, 0 QuantifiedInterpolants, 855 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 3 procedures, 123 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.8ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 2.5ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=606occurred 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...