/usr/bin/java -Xmx8000000000 -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-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/ThreadIdTest1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-12 21:43:50,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-12 21:43:50,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-12 21:43:50,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-12 21:43:50,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-12 21:43:50,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-12 21:43:50,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-12 21:43:50,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-12 21:43:50,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-12 21:43:50,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-12 21:43:50,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-12 21:43:50,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-12 21:43:50,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-12 21:43:50,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-12 21:43:50,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-12 21:43:50,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-12 21:43:50,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-12 21:43:50,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-12 21:43:50,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-12 21:43:50,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-12 21:43:50,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-12 21:43:50,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-12 21:43:50,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-12 21:43:50,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-12 21:43:50,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-12 21:43:50,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-12 21:43:50,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-12 21:43:50,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-12 21:43:50,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-12 21:43:50,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-12 21:43:50,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-12 21:43:50,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-12 21:43:50,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-12 21:43:50,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-12 21:43:50,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-12 21:43:50,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-12 21:43:50,878 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-PN-NoLbe.epf [2021-08-12 21:43:50,905 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-12 21:43:50,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-12 21:43:50,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-12 21:43:50,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-12 21:43:50,908 INFO L138 SettingsManager]: * Use SBE=true [2021-08-12 21:43:50,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-12 21:43:50,908 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-12 21:43:50,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-12 21:43:50,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-12 21:43:50,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-12 21:43:50,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-12 21:43:50,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-12 21:43:50,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-12 21:43:50,910 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-12 21:43:50,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-12 21:43:50,910 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-12 21:43:50,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-12 21:43:50,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-12 21:43:50,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-12 21:43:50,910 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-12 21:43:50,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-12 21:43:50,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-12 21:43:50,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-12 21:43:50,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-12 21:43:50,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-12 21:43:50,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-12 21:43:50,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-12 21:43:50,911 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-12 21:43:50,911 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-12 21:43:50,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-12 21:43:50,911 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-12 21:43:51,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-12 21:43:51,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-12 21:43:51,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-12 21:43:51,176 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-12 21:43:51,177 INFO L275 PluginConnector]: CDTParser initialized [2021-08-12 21:43:51,177 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/ThreadIdTest1.c [2021-08-12 21:43:51,240 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6faa8788f/a069ea11c195451d9eb82eefc9aabfee/FLAG4696705c3 [2021-08-12 21:43:51,556 INFO L306 CDTParser]: Found 1 translation units. [2021-08-12 21:43:51,556 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/ThreadIdTest1.c [2021-08-12 21:43:51,556 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-08-12 21:43:51,557 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-08-12 21:43:51,592 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6faa8788f/a069ea11c195451d9eb82eefc9aabfee/FLAG4696705c3 [2021-08-12 21:43:51,990 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6faa8788f/a069ea11c195451d9eb82eefc9aabfee [2021-08-12 21:43:51,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-12 21:43:51,993 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-12 21:43:51,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-12 21:43:51,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-12 21:43:51,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-12 21:43:51,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.08 09:43:51" (1/1) ... [2021-08-12 21:43:51,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67dfceb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:43:51, skipping insertion in model container [2021-08-12 21:43:51,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.08 09:43:51" (1/1) ... [2021-08-12 21:43:52,003 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-12 21:43:52,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-12 21:43:52,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-12 21:43:52,120 INFO L203 MainTranslator]: Completed pre-run [2021-08-12 21:43:52,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-12 21:43:52,135 INFO L208 MainTranslator]: Completed translation [2021-08-12 21:43:52,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:43:52 WrapperNode [2021-08-12 21:43:52,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-12 21:43:52,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-12 21:43:52,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-12 21:43:52,137 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-12 21:43:52,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:43:52" (1/1) ... [2021-08-12 21:43:52,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:43:52" (1/1) ... [2021-08-12 21:43:52,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-12 21:43:52,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-12 21:43:52,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-12 21:43:52,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-12 21:43:52,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:43:52" (1/1) ... [2021-08-12 21:43:52,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:43:52" (1/1) ... [2021-08-12 21:43:52,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:43:52" (1/1) ... [2021-08-12 21:43:52,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:43:52" (1/1) ... [2021-08-12 21:43:52,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:43:52" (1/1) ... [2021-08-12 21:43:52,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:43:52" (1/1) ... [2021-08-12 21:43:52,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:43:52" (1/1) ... [2021-08-12 21:43:52,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-12 21:43:52,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-12 21:43:52,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-12 21:43:52,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-12 21:43:52,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:43:52" (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 [2021-08-12 21:43:52,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-12 21:43:52,261 INFO L130 BoogieDeclarations]: Found specification of procedure dec [2021-08-12 21:43:52,262 INFO L138 BoogieDeclarations]: Found implementation of procedure dec [2021-08-12 21:43:52,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-12 21:43:52,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-12 21:43:52,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-12 21:43:52,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-12 21:43:52,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-12 21:43:52,262 INFO L130 BoogieDeclarations]: Found specification of procedure inc [2021-08-12 21:43:52,262 INFO L138 BoogieDeclarations]: Found implementation of procedure inc [2021-08-12 21:43:52,263 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-12 21:43:52,493 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-12 21:43:52,494 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-12 21:43:52,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 09:43:52 BoogieIcfgContainer [2021-08-12 21:43:52,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-12 21:43:52,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-12 21:43:52,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-12 21:43:52,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-12 21:43:52,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.08 09:43:51" (1/3) ... [2021-08-12 21:43:52,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e232167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.08 09:43:52, skipping insertion in model container [2021-08-12 21:43:52,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:43:52" (2/3) ... [2021-08-12 21:43:52,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e232167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.08 09:43:52, skipping insertion in model container [2021-08-12 21:43:52,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 09:43:52" (3/3) ... [2021-08-12 21:43:52,499 INFO L111 eAbstractionObserver]: Analyzing ICFG ThreadIdTest1.c [2021-08-12 21:43:52,503 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-12 21:43:52,503 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-12 21:43:52,504 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-12 21:43:52,519 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,520 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,520 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,520 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,520 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,520 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,520 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,520 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,520 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,521 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,521 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,521 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,521 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,521 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,521 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,521 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,521 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,521 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,522 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,522 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,522 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,522 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,522 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,522 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,522 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,522 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,522 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,522 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,522 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,523 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,523 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,523 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,523 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,523 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,523 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,523 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,524 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,525 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,525 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,525 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,525 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,530 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,530 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,531 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,531 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,531 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:43:52,540 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-08-12 21:43:52,554 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-12 21:43:52,574 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-12 21:43:52,574 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-12 21:43:52,574 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-12 21:43:52,574 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-12 21:43:52,574 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-12 21:43:52,574 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-12 21:43:52,574 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-12 21:43:52,574 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-12 21:43:52,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 48 transitions, 112 flow [2021-08-12 21:43:52,621 INFO L129 PetriNetUnfolder]: 0/57 cut-off events. [2021-08-12 21:43:52,621 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-08-12 21:43:52,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 57 events. 0/57 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-08-12 21:43:52,623 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 48 transitions, 112 flow [2021-08-12 21:43:52,633 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 38 transitions, 88 flow [2021-08-12 21:43:52,640 INFO L129 PetriNetUnfolder]: 0/39 cut-off events. [2021-08-12 21:43:52,640 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-08-12 21:43:52,640 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:43:52,641 INFO L266 CegarLoopForPetriNet]: 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] [2021-08-12 21:43:52,641 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 21:43:52,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:43:52,644 INFO L82 PathProgramCache]: Analyzing trace with hash -545093736, now seen corresponding path program 1 times [2021-08-12 21:43:52,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:43:52,649 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283635299] [2021-08-12 21:43:52,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:43:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:43:52,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:43:52,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:43:52,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:43:52,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:43:52,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:43:52,814 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:43:52,814 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283635299] [2021-08-12 21:43:52,815 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283635299] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:43:52,815 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:43:52,815 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-12 21:43:52,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166636451] [2021-08-12 21:43:52,821 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-12 21:43:52,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:43:52,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-12 21:43:52,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-12 21:43:52,832 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 48 [2021-08-12 21:43:52,834 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 38 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2021-08-12 21:43:52,834 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:43:52,834 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 48 [2021-08-12 21:43:52,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:43:52,869 INFO L129 PetriNetUnfolder]: 6/78 cut-off events. [2021-08-12 21:43:52,870 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-08-12 21:43:52,871 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 78 events. 6/78 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 186 event pairs, 4 based on Foata normal form. 6/81 useless extension candidates. Maximal degree in co-relation 76. Up to 19 conditions per place. [2021-08-12 21:43:52,872 INFO L132 encePairwiseOnDemand]: 44/48 looper letters, 9 selfloop transitions, 3 changer transitions 0/42 dead transitions. [2021-08-12 21:43:52,872 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 42 transitions, 120 flow [2021-08-12 21:43:52,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-12 21:43:52,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-12 21:43:52,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 130 transitions. [2021-08-12 21:43:52,879 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9027777777777778 [2021-08-12 21:43:52,880 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 130 transitions. [2021-08-12 21:43:52,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 130 transitions. [2021-08-12 21:43:52,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:43:52,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 130 transitions. [2021-08-12 21:43:52,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2021-08-12 21:43:52,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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) [2021-08-12 21:43:52,888 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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) [2021-08-12 21:43:52,888 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 2 predicate places. [2021-08-12 21:43:52,888 INFO L482 AbstractCegarLoop]: Abstraction has has 46 places, 42 transitions, 120 flow [2021-08-12 21:43:52,888 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2021-08-12 21:43:52,888 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:43:52,889 INFO L266 CegarLoopForPetriNet]: 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] [2021-08-12 21:43:52,889 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-12 21:43:52,889 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 21:43:52,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:43:52,889 INFO L82 PathProgramCache]: Analyzing trace with hash -175524423, now seen corresponding path program 1 times [2021-08-12 21:43:52,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:43:52,890 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442053077] [2021-08-12 21:43:52,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:43:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-12 21:43:52,907 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-12 21:43:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-12 21:43:52,923 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-12 21:43:52,942 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-12 21:43:52,943 INFO L651 BasicCegarLoop]: Counterexample might be feasible [2021-08-12 21:43:52,943 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-12 21:43:52,945 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-12 21:43:52,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.08 09:43:52 BasicIcfg [2021-08-12 21:43:52,980 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-12 21:43:52,981 INFO L168 Benchmark]: Toolchain (without parser) took 987.12 ms. Allocated memory is still 190.8 MB. Free memory was 153.8 MB in the beginning and 154.9 MB in the end (delta: -1.1 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-12 21:43:52,981 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 190.8 MB. Free memory is still 171.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-12 21:43:52,982 INFO L168 Benchmark]: CACSL2BoogieTranslator took 140.60 ms. Allocated memory is still 190.8 MB. Free memory was 153.7 MB in the beginning and 144.9 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2021-08-12 21:43:52,982 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.44 ms. Allocated memory is still 190.8 MB. Free memory was 144.9 MB in the beginning and 174.2 MB in the end (delta: -29.3 MB). Peak memory consumption was 8.1 MB. Max. memory is 8.0 GB. [2021-08-12 21:43:52,983 INFO L168 Benchmark]: Boogie Preprocessor took 10.44 ms. Allocated memory is still 190.8 MB. Free memory was 174.2 MB in the beginning and 173.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-12 21:43:52,983 INFO L168 Benchmark]: RCFGBuilder took 287.83 ms. Allocated memory is still 190.8 MB. Free memory was 173.2 MB in the beginning and 158.5 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-08-12 21:43:52,983 INFO L168 Benchmark]: TraceAbstraction took 484.14 ms. Allocated memory is still 190.8 MB. Free memory was 157.8 MB in the beginning and 154.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.0 MB. Max. memory is 8.0 GB. [2021-08-12 21:43:52,986 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 190.8 MB. Free memory is still 171.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 140.60 ms. Allocated memory is still 190.8 MB. Free memory was 153.7 MB in the beginning and 144.9 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 59.44 ms. Allocated memory is still 190.8 MB. Free memory was 144.9 MB in the beginning and 174.2 MB in the end (delta: -29.3 MB). Peak memory consumption was 8.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 10.44 ms. Allocated memory is still 190.8 MB. Free memory was 174.2 MB in the beginning and 173.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 287.83 ms. Allocated memory is still 190.8 MB. Free memory was 173.2 MB in the beginning and 158.5 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 484.14 ms. Allocated memory is still 190.8 MB. Free memory was 157.8 MB in the beginning and 154.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 36]: assertion can be violated assertion can be violated We found a FailurePath: [L13] 0 int x = 0; VAL [x=0] [L27] 0 pthread_t first_th_id; VAL [x=0] [L28] 0 pthread_t second_th_id; VAL [x=0] [L30] FCALL, FORK 0 pthread_create(&first_th_id, NULL, inc, NULL) VAL [n={0:0}, x=0] [L31] FCALL, FORK 0 pthread_create(&second_th_id, NULL, dec, NULL) VAL [n={0:0}, n={0:0}, x=0] [L22] 2 x-- VAL [n={0:0}, n={0:0}, n={0:0}, x=0, x--=0] [L33] 0 \read(first_th_id) VAL [n={0:0}, n={0:0}, n={0:0}, x=0, x--=0] [L17] 1 x++ VAL [n={0:0}, n={0:0}, n={0:0}, n={0:0}, x=1, x--=0] [L18] 1 return NULL; VAL [\result={0:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, x=1, x--=0] [L33] FCALL, JOIN 1 pthread_join(first_th_id, NULL) VAL [\result={0:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, x=1, x--=0] [L34] 0 int y = x; VAL [\result={0:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, x=1, x--=0] [L22] 2 x-- VAL [\result={0:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, x=-1, x--=0] [L36] 0 CodeAnnotStmt[Assertion] VAL [\result={0:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, x=-1, x--=0] - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 64 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 6.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 372.7ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 60.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 58.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 10 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 11 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=1, InterpolantAutomatonStates: 3, 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: 14.0ms SsaConstructionTime, 50.8ms SatisfiabilityAnalysisTime, 72.7ms InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 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 RESULT: Ultimate proved your program to be incorrect! Received shutdown request...