/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/pthread-lit/fkp2013_variant-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 23:40:41,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 23:40:41,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 23:40:41,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-21 23:40:42,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 23:40:42,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 23:40:42,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 23:40:42,011 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 [2021-05-21 23:40:42,045 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 23:40:42,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 23:40:42,047 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 23:40:42,047 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 23:40:42,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 23:40:42,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 23:40:42,050 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 23:40:42,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 23:40:42,050 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 23:40:42,051 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 23:40:42,051 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 23:40:42,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 23:40:42,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 23:40:42,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 23:40:42,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 23:40:42,052 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 23:40:42,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 23:40:42,052 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 23:40:42,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 23:40:42,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 23:40:42,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 23:40:42,053 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 23:40:42,053 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 23:40:42,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 23:40:42,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 23:40:42,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 23:40:42,054 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 23:40:42,054 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 23:40:42,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 23:40:42,054 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 23:40:42,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 23:40:42,054 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-05-21 23:40:42,055 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 23:40:42,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 23:40:42,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 23:40:42,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 23:40:42,364 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 23:40:42,365 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 23:40:42,366 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2021-05-21 23:40:42,423 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08c37665d/b6570c03935141a7ac5765e69db553fc/FLAG586033c15 [2021-05-21 23:40:42,987 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 23:40:42,987 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2021-05-21 23:40:42,996 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08c37665d/b6570c03935141a7ac5765e69db553fc/FLAG586033c15 [2021-05-21 23:40:43,395 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08c37665d/b6570c03935141a7ac5765e69db553fc [2021-05-21 23:40:43,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 23:40:43,398 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 23:40:43,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 23:40:43,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 23:40:43,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 23:40:43,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 11:40:43" (1/1) ... [2021-05-21 23:40:43,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@470d892d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:40:43, skipping insertion in model container [2021-05-21 23:40:43,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 11:40:43" (1/1) ... [2021-05-21 23:40:43,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 23:40:43,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 23:40:43,717 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i[30003,30016] [2021-05-21 23:40:43,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 23:40:43,737 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 23:40:43,791 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i[30003,30016] [2021-05-21 23:40:43,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 23:40:43,845 INFO L208 MainTranslator]: Completed translation [2021-05-21 23:40:43,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:40:43 WrapperNode [2021-05-21 23:40:43,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 23:40:43,847 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 23:40:43,847 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 23:40:43,847 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 23:40:43,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:40:43" (1/1) ... [2021-05-21 23:40:43,863 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:40:43" (1/1) ... [2021-05-21 23:40:43,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 23:40:43,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 23:40:43,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 23:40:43,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 23:40:43,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:40:43" (1/1) ... [2021-05-21 23:40:43,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:40:43" (1/1) ... [2021-05-21 23:40:43,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:40:43" (1/1) ... [2021-05-21 23:40:43,888 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:40:43" (1/1) ... [2021-05-21 23:40:43,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:40:43" (1/1) ... [2021-05-21 23:40:43,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:40:43" (1/1) ... [2021-05-21 23:40:43,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:40:43" (1/1) ... [2021-05-21 23:40:43,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 23:40:43,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 23:40:43,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 23:40:43,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 23:40:43,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:40:43" (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 [2021-05-21 23:40:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-05-21 23:40:44,005 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-05-21 23:40:44,006 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-05-21 23:40:44,006 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-05-21 23:40:44,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 23:40:44,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 23:40:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 23:40:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 23:40:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 23:40:44,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 23:40:44,009 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 23:40:44,431 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 23:40:44,431 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-05-21 23:40:44,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 11:40:44 BoogieIcfgContainer [2021-05-21 23:40:44,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 23:40:44,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 23:40:44,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 23:40:44,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 23:40:44,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 11:40:43" (1/3) ... [2021-05-21 23:40:44,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7346ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 11:40:44, skipping insertion in model container [2021-05-21 23:40:44,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:40:43" (2/3) ... [2021-05-21 23:40:44,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7346ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 11:40:44, skipping insertion in model container [2021-05-21 23:40:44,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 11:40:44" (3/3) ... [2021-05-21 23:40:44,441 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-2.i [2021-05-21 23:40:44,446 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 23:40:44,447 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 23:40:44,447 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-21 23:40:44,448 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 23:40:44,483 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,483 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,483 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,483 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,484 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,484 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,484 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,484 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,485 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,485 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,485 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,485 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,485 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,486 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,486 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,486 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,486 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,486 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,488 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,488 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,488 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,488 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,488 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,488 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,489 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,489 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,490 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,490 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,490 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,490 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,490 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,490 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,491 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,491 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,492 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,492 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,492 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,492 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,495 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,496 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,496 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,497 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,497 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,506 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,507 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,507 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,507 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,507 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,507 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:40:44,513 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-05-21 23:40:44,533 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-05-21 23:40:44,562 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 23:40:44,562 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 23:40:44,562 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 23:40:44,562 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 23:40:44,562 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 23:40:44,563 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 23:40:44,563 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 23:40:44,563 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 23:40:44,574 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 72 transitions, 154 flow [2021-05-21 23:40:44,652 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1669 states, 1663 states have (on average 2.750450992182802) internal successors, (4574), 1668 states have internal predecessors, (4574), 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) [2021-05-21 23:40:44,659 INFO L276 IsEmpty]: Start isEmpty. Operand has 1669 states, 1663 states have (on average 2.750450992182802) internal successors, (4574), 1668 states have internal predecessors, (4574), 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) [2021-05-21 23:40:44,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-05-21 23:40:44,665 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:40:44,666 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] [2021-05-21 23:40:44,666 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:40:44,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:40:44,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1204908705, now seen corresponding path program 1 times [2021-05-21 23:40:44,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:40:44,679 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816852450] [2021-05-21 23:40:44,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:40:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:40:44,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:40:44,967 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:40:44,968 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816852450] [2021-05-21 23:40:44,968 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816852450] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:40:44,968 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:40:44,969 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 23:40:44,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664485765] [2021-05-21 23:40:44,973 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 23:40:44,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:40:44,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 23:40:44,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-05-21 23:40:44,989 INFO L87 Difference]: Start difference. First operand has 1669 states, 1663 states have (on average 2.750450992182802) internal successors, (4574), 1668 states have internal predecessors, (4574), 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 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 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) [2021-05-21 23:40:45,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:40:45,258 INFO L93 Difference]: Finished difference Result 1678 states and 4256 transitions. [2021-05-21 23:40:45,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 23:40:45,260 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 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 35 [2021-05-21 23:40:45,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:40:45,280 INFO L225 Difference]: With dead ends: 1678 [2021-05-21 23:40:45,280 INFO L226 Difference]: Without dead ends: 596 [2021-05-21 23:40:45,282 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 170.7ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-05-21 23:40:45,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2021-05-21 23:40:45,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2021-05-21 23:40:45,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 594 states have (on average 2.3754208754208754) internal successors, (1411), 595 states have internal predecessors, (1411), 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) [2021-05-21 23:40:45,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 1411 transitions. [2021-05-21 23:40:45,364 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 1411 transitions. Word has length 35 [2021-05-21 23:40:45,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:40:45,365 INFO L482 AbstractCegarLoop]: Abstraction has 596 states and 1411 transitions. [2021-05-21 23:40:45,365 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 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) [2021-05-21 23:40:45,365 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 1411 transitions. [2021-05-21 23:40:45,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-05-21 23:40:45,367 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:40:45,367 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] [2021-05-21 23:40:45,368 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 23:40:45,368 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:40:45,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:40:45,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1723552665, now seen corresponding path program 1 times [2021-05-21 23:40:45,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:40:45,369 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329949050] [2021-05-21 23:40:45,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:40:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-21 23:40:45,420 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-21 23:40:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-21 23:40:45,460 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-21 23:40:45,500 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-05-21 23:40:45,500 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-05-21 23:40:45,501 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 23:40:45,502 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was UNSAFE (1/2) [2021-05-21 23:40:45,505 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-05-21 23:40:45,517 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 23:40:45,517 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 23:40:45,517 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 23:40:45,517 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 23:40:45,517 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 23:40:45,518 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 23:40:45,518 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 23:40:45,518 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-21 23:40:45,520 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 72 transitions, 154 flow [2021-05-21 23:40:45,561 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1669 states, 1663 states have (on average 2.750450992182802) internal successors, (4574), 1668 states have internal predecessors, (4574), 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) [2021-05-21 23:40:45,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 1669 states, 1663 states have (on average 2.750450992182802) internal successors, (4574), 1668 states have internal predecessors, (4574), 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) [2021-05-21 23:40:45,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-05-21 23:40:45,575 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:40:45,575 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2021-05-21 23:40:45,575 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-05-21 23:40:45,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:40:45,576 INFO L82 PathProgramCache]: Analyzing trace with hash 2028868046, now seen corresponding path program 1 times [2021-05-21 23:40:45,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:40:45,576 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15692138] [2021-05-21 23:40:45,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:40:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-21 23:40:45,613 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-21 23:40:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-21 23:40:45,630 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-21 23:40:45,638 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-05-21 23:40:45,639 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-05-21 23:40:45,639 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 23:40:45,639 INFO L315 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2021-05-21 23:40:45,639 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 23:40:45,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 11:40:45 BasicIcfg [2021-05-21 23:40:45,709 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 23:40:45,711 INFO L168 Benchmark]: Toolchain (without parser) took 2311.79 ms. Allocated memory is still 341.8 MB. Free memory was 304.1 MB in the beginning and 164.3 MB in the end (delta: 139.8 MB). Peak memory consumption was 139.1 MB. Max. memory is 16.0 GB. [2021-05-21 23:40:45,711 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 341.8 MB. Free memory was 322.3 MB in the beginning and 322.3 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 23:40:45,712 INFO L168 Benchmark]: CACSL2BoogieTranslator took 446.36 ms. Allocated memory is still 341.8 MB. Free memory was 303.9 MB in the beginning and 304.8 MB in the end (delta: -930.8 kB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. [2021-05-21 23:40:45,713 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.51 ms. Allocated memory is still 341.8 MB. Free memory was 304.8 MB in the beginning and 302.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 23:40:45,713 INFO L168 Benchmark]: Boogie Preprocessor took 19.36 ms. Allocated memory is still 341.8 MB. Free memory was 302.7 MB in the beginning and 301.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 23:40:45,714 INFO L168 Benchmark]: RCFGBuilder took 533.31 ms. Allocated memory is still 341.8 MB. Free memory was 301.7 MB in the beginning and 278.6 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-05-21 23:40:45,718 INFO L168 Benchmark]: TraceAbstraction took 1275.24 ms. Allocated memory is still 341.8 MB. Free memory was 277.6 MB in the beginning and 164.3 MB in the end (delta: 113.2 MB). Peak memory consumption was 113.2 MB. Max. memory is 16.0 GB. [2021-05-21 23:40:45,722 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 341.8 MB. Free memory was 322.3 MB in the beginning and 322.3 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 446.36 ms. Allocated memory is still 341.8 MB. Free memory was 303.9 MB in the beginning and 304.8 MB in the end (delta: -930.8 kB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 32.51 ms. Allocated memory is still 341.8 MB. Free memory was 304.8 MB in the beginning and 302.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.36 ms. Allocated memory is still 341.8 MB. Free memory was 302.7 MB in the beginning and 301.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 533.31 ms. Allocated memory is still 341.8 MB. Free memory was 301.7 MB in the beginning and 278.6 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1275.24 ms. Allocated memory is still 341.8 MB. Free memory was 277.6 MB in the beginning and 164.3 MB in the end (delta: 113.2 MB). Peak memory consumption was 113.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 690]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 volatile int x; VAL [x=0] [L698] 0 volatile int n; VAL [n=0, x=0] [L710] 0 pthread_t t1, t2; VAL [n=0, x=0] [L711] 0 int i; VAL [n=0, x=0] [L712] 0 x = 0 VAL [n=0, x=0] [L713] 0 n = __VERIFIER_nondet_int() VAL [n=1, x=0] [L686] COND FALSE 0 !(!cond) VAL [n=1, x=0] [L715] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [n=1, x=0] [L716] 0 i = 0 VAL [n=1, x=0] [L716] COND TRUE 0 i < n VAL [n=1, x=0] [L717] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [arg={0:0}, n=1, x=0] [L704] 2 int t; VAL [arg={0:0}, arg={0:0}, n=1, x=0] [L705] 2 t = x VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=0] [L706] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=1] [L689] COND TRUE 1 !(cond) VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=1] [L690] 1 reach_error() VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=1] - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 89 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 942.2ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 14.6ms, AutomataDifference: 307.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 89.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 108 SDtfs, 286 SDslu, 383 SDs, 0 SdLazy, 80 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 65.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 170.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1669occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 70.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 8.8ms SsaConstructionTime, 79.3ms SatisfiabilityAnalysisTime, 183.1ms InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 129 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 5 procedures, 89 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 122.2ms, OverallIterations: 1, TraceHistogramMax: 2, EmptinessCheckTime: 13.1ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 43.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1669occurred 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: TRACE_CHECK: 3.8ms SsaConstructionTime, 17.0ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...