/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf -i ../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 20:00:30,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 20:00:30,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 20:00:30,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 20:00:30,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 20:00:30,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 20:00:30,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 20:00:30,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 20:00:30,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 20:00:30,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 20:00:30,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 20:00:30,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 20:00:30,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 20:00:30,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 20:00:30,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 20:00:30,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 20:00:30,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 20:00:30,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 20:00:30,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 20:00:30,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 20:00:30,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 20:00:30,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 20:00:30,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 20:00:30,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 20:00:30,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 20:00:30,235 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 20:00:30,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 20:00:30,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 20:00:30,238 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 20:00:30,239 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 20:00:30,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 20:00:30,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 20:00:30,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 20:00:30,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 20:00:30,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 20:00:30,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 20:00:30,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 20:00:30,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 20:00:30,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 20:00:30,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 20:00:30,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 20:00:30,250 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-11 20:00:30,289 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 20:00:30,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 20:00:30,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 20:00:30,291 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 20:00:30,291 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 20:00:30,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 20:00:30,291 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 20:00:30,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 20:00:30,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 20:00:30,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 20:00:30,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 20:00:30,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 20:00:30,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 20:00:30,294 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 20:00:30,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 20:00:30,294 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 20:00:30,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 20:00:30,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 20:00:30,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 20:00:30,295 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 20:00:30,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 20:00:30,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 20:00:30,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 20:00:30,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 20:00:30,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 20:00:30,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 20:00:30,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 20:00:30,296 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 20:00:30,296 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 20:00:30,297 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 20:00:30,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 20:00:30,587 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 20:00:30,590 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 20:00:30,592 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 20:00:30,593 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 20:00:30,593 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2020-10-11 20:00:30,654 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f23d596b8/ba51a44ff3724b17b7103e2ca4d64a49/FLAG0901f58ad [2020-10-11 20:00:31,079 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 20:00:31,080 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkMultipleTimes.c [2020-10-11 20:00:31,080 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-11 20:00:31,081 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-11 20:00:31,120 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f23d596b8/ba51a44ff3724b17b7103e2ca4d64a49/FLAG0901f58ad [2020-10-11 20:00:31,502 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f23d596b8/ba51a44ff3724b17b7103e2ca4d64a49 [2020-10-11 20:00:31,511 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 20:00:31,513 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 20:00:31,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 20:00:31,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 20:00:31,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 20:00:31,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:00:31" (1/1) ... [2020-10-11 20:00:31,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f4a4d69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:31, skipping insertion in model container [2020-10-11 20:00:31,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:00:31" (1/1) ... [2020-10-11 20:00:31,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 20:00:31,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 20:00:31,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 20:00:31,815 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 20:00:31,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 20:00:31,852 INFO L208 MainTranslator]: Completed translation [2020-10-11 20:00:31,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:31 WrapperNode [2020-10-11 20:00:31,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 20:00:31,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 20:00:31,854 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 20:00:31,854 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 20:00:31,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:31" (1/1) ... [2020-10-11 20:00:31,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:31" (1/1) ... [2020-10-11 20:00:31,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 20:00:31,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 20:00:31,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 20:00:31,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 20:00:31,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:31" (1/1) ... [2020-10-11 20:00:31,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:31" (1/1) ... [2020-10-11 20:00:31,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:31" (1/1) ... [2020-10-11 20:00:31,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:31" (1/1) ... [2020-10-11 20:00:31,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:31" (1/1) ... [2020-10-11 20:00:31,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:31" (1/1) ... [2020-10-11 20:00:31,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:31" (1/1) ... [2020-10-11 20:00:31,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 20:00:31,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 20:00:31,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 20:00:31,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 20:00:31,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:31" (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 [2020-10-11 20:00:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 20:00:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-11 20:00:31,958 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-11 20:00:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 20:00:31,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 20:00:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-11 20:00:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-11 20:00:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 20:00:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 20:00:31,961 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 20:00:32,213 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 20:00:32,213 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-11 20:00:32,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:00:32 BoogieIcfgContainer [2020-10-11 20:00:32,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 20:00:32,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 20:00:32,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 20:00:32,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 20:00:32,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 08:00:31" (1/3) ... [2020-10-11 20:00:32,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26cf6cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:00:32, skipping insertion in model container [2020-10-11 20:00:32,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:00:31" (2/3) ... [2020-10-11 20:00:32,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26cf6cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:00:32, skipping insertion in model container [2020-10-11 20:00:32,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:00:32" (3/3) ... [2020-10-11 20:00:32,224 INFO L111 eAbstractionObserver]: Analyzing ICFG forkMultipleTimes.c [2020-10-11 20:00:32,236 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 20:00:32,244 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 20:00:32,245 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 20:00:32,284 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,285 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,285 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,285 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,286 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,286 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,286 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,287 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,287 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,287 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,288 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,288 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,288 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,288 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,288 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,289 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,289 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,289 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,289 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,290 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,290 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,290 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,291 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,291 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,292 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,292 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,292 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,292 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,293 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,293 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,293 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,293 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,294 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,294 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,294 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,295 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,295 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,295 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,296 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,296 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,296 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,297 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,297 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,297 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,297 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,302 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,302 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,302 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,302 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,303 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,303 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,303 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,309 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,310 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,310 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,310 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,311 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,311 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,311 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,315 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,315 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,315 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,316 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,316 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~x~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,316 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork2_#t~pre0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,316 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 20:00:32,352 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 20:00:32,374 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 20:00:32,375 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 20:00:32,375 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 20:00:32,375 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 20:00:32,375 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 20:00:32,375 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 20:00:32,376 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 20:00:32,376 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 20:00:32,393 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 77 transitions, 196 flow [2020-10-11 20:00:32,461 INFO L129 PetriNetUnfolder]: 5/85 cut-off events. [2020-10-11 20:00:32,462 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-10-11 20:00:32,467 INFO L80 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 85 events. 5/85 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 114 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 50. Up to 6 conditions per place. [2020-10-11 20:00:32,468 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 77 transitions, 196 flow [2020-10-11 20:00:32,478 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 61 transitions, 158 flow [2020-10-11 20:00:32,543 INFO L129 PetriNetUnfolder]: 5/71 cut-off events. [2020-10-11 20:00:32,543 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-10-11 20:00:32,544 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 20:00:32,545 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 20:00:32,545 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-11 20:00:32,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 20:00:32,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1598168404, now seen corresponding path program 1 times [2020-10-11 20:00:32,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 20:00:32,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974485908] [2020-10-11 20:00:32,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 20:00:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 20:00:33,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 20:00:33,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974485908] [2020-10-11 20:00:33,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 20:00:33,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-11 20:00:33,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661907653] [2020-10-11 20:00:33,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-11 20:00:33,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 20:00:33,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-11 20:00:33,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-11 20:00:37,378 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 77 [2020-10-11 20:00:37,382 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 61 transitions, 158 flow. Second operand 16 states. [2020-10-11 20:00:37,383 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 20:00:37,383 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 77 [2020-10-11 20:00:37,385 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 20:00:38,213 INFO L129 PetriNetUnfolder]: 304/899 cut-off events. [2020-10-11 20:00:38,214 INFO L130 PetriNetUnfolder]: For 115/115 co-relation queries the response was YES. [2020-10-11 20:00:38,223 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1542 conditions, 899 events. 304/899 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 6051 event pairs, 30 based on Foata normal form. 4/875 useless extension candidates. Maximal degree in co-relation 1079. Up to 342 conditions per place. [2020-10-11 20:00:38,239 INFO L132 encePairwiseOnDemand]: 57/77 looper letters, 57 selfloop transitions, 42 changer transitions 0/136 dead transitions. [2020-10-11 20:00:38,239 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 136 transitions, 512 flow [2020-10-11 20:00:38,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-11 20:00:38,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-11 20:00:38,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 975 transitions. [2020-10-11 20:00:38,264 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.6664388243335612 [2020-10-11 20:00:38,265 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 975 transitions. [2020-10-11 20:00:38,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 975 transitions. [2020-10-11 20:00:38,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 20:00:38,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 975 transitions. [2020-10-11 20:00:38,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 20 states. [2020-10-11 20:00:38,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 20 states. [2020-10-11 20:00:38,290 INFO L81 ComplementDD]: Finished complementDD. Result 20 states. [2020-10-11 20:00:38,292 INFO L185 Difference]: Start difference. First operand has 65 places, 61 transitions, 158 flow. Second operand 19 states and 975 transitions. [2020-10-11 20:00:38,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 136 transitions, 512 flow [2020-10-11 20:00:38,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 136 transitions, 484 flow, removed 0 selfloop flow, removed 6 redundant places. [2020-10-11 20:00:38,311 INFO L241 Difference]: Finished difference. Result has 89 places, 99 transitions, 400 flow [2020-10-11 20:00:38,314 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=400, PETRI_PLACES=89, PETRI_TRANSITIONS=99} [2020-10-11 20:00:38,315 INFO L341 CegarLoopForPetriNet]: 65 programPoint places, 24 predicate places. [2020-10-11 20:00:38,315 INFO L481 AbstractCegarLoop]: Abstraction has has 89 places, 99 transitions, 400 flow [2020-10-11 20:00:38,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-11 20:00:38,315 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 20:00:38,316 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 20:00:38,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 20:00:38,316 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-10-11 20:00:38,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 20:00:38,317 INFO L82 PathProgramCache]: Analyzing trace with hash -112454402, now seen corresponding path program 1 times [2020-10-11 20:00:38,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 20:00:38,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878856334] [2020-10-11 20:00:38,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 20:00:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 20:00:38,361 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 20:00:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 20:00:38,398 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 20:00:38,444 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 20:00:38,444 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 20:00:38,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 20:00:38,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 08:00:38 BasicIcfg [2020-10-11 20:00:38,538 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 20:00:38,540 INFO L168 Benchmark]: Toolchain (without parser) took 7027.04 ms. Allocated memory was 253.2 MB in the beginning and 461.4 MB in the end (delta: 208.1 MB). Free memory was 209.2 MB in the beginning and 374.6 MB in the end (delta: -165.5 MB). Peak memory consumption was 42.7 MB. Max. memory is 14.2 GB. [2020-10-11 20:00:38,541 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 253.2 MB. Free memory is still 229.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 20:00:38,542 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.06 ms. Allocated memory was 253.2 MB in the beginning and 320.3 MB in the end (delta: 67.1 MB). Free memory was 209.2 MB in the beginning and 294.5 MB in the end (delta: -85.3 MB). Peak memory consumption was 24.6 MB. Max. memory is 14.2 GB. [2020-10-11 20:00:38,543 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.00 ms. Allocated memory is still 320.3 MB. Free memory was 294.5 MB in the beginning and 291.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 20:00:38,544 INFO L168 Benchmark]: Boogie Preprocessor took 18.70 ms. Allocated memory is still 320.3 MB. Free memory is still 291.9 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 20:00:38,545 INFO L168 Benchmark]: RCFGBuilder took 311.70 ms. Allocated memory is still 320.3 MB. Free memory was 289.4 MB in the beginning and 272.0 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 14.2 GB. [2020-10-11 20:00:38,546 INFO L168 Benchmark]: TraceAbstraction took 6321.08 ms. Allocated memory was 320.3 MB in the beginning and 461.4 MB in the end (delta: 141.0 MB). Free memory was 272.0 MB in the beginning and 374.6 MB in the end (delta: -102.6 MB). Peak memory consumption was 38.4 MB. Max. memory is 14.2 GB. [2020-10-11 20:00:38,551 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 253.2 MB. Free memory is still 229.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 339.06 ms. Allocated memory was 253.2 MB in the beginning and 320.3 MB in the end (delta: 67.1 MB). Free memory was 209.2 MB in the beginning and 294.5 MB in the end (delta: -85.3 MB). Peak memory consumption was 24.6 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 31.00 ms. Allocated memory is still 320.3 MB. Free memory was 294.5 MB in the beginning and 291.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 18.70 ms. Allocated memory is still 320.3 MB. Free memory is still 291.9 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 311.70 ms. Allocated memory is still 320.3 MB. Free memory was 289.4 MB in the beginning and 272.0 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 6321.08 ms. Allocated memory was 320.3 MB in the beginning and 461.4 MB in the end (delta: 141.0 MB). Free memory was 272.0 MB in the beginning and 374.6 MB in the end (delta: -102.6 MB). Peak memory consumption was 38.4 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 37]: assertion can be violated assertion can be violated We found a FailurePath: [L13] 0 int counter = 0; VAL [counter=0] [L23] 0 int val = 0; VAL [counter=0] [L25] 0 pthread_t first_thread_id; VAL [counter=0] [L26] 0 pthread_t second_thread_id; VAL [counter=0] [L27] 0 pthread_t third_thread_id; VAL [counter=0] [L29] FCALL, FORK 0 pthread_create(&first_thread_id, NULL, foo, &val) VAL [counter=0, n={6:0}] [L30] FCALL, FORK 0 pthread_create(&second_thread_id, NULL, foo, &val) VAL [counter=0, n={6:0}] [L31] FCALL, FORK 0 pthread_create(&third_thread_id, NULL, foo, &val) VAL [counter=0, n={6:0}] [L16] 1 int *x = (int *)n; VAL [counter=0, n={6:0}, n={6:0}, x={6:0}] [L17] 1 ++counter VAL [++counter=1, counter=0, n={6:0}, n={6:0}, x={6:0}] [L16] 3 int *x = (int *)n; VAL [++counter=1, counter=0, n={6:0}, n={6:0}, x={6:0}] [L17] 3 ++counter VAL [++counter=1, counter=1, n={6:0}, n={6:0}, x={6:0}] [L16] 2 int *x = (int *)n; VAL [++counter=1, counter=1, n={6:0}, n={6:0}, x={6:0}] [L17] EXPR 2 ++counter VAL [++counter=1, counter=3, n={6:0}, n={6:0}, x={6:0}] [L17] 2 *x = ++counter VAL [++counter=1, counter=3, n={6:0}, n={6:0}, x={6:0}] [L18] 1 return 0; VAL [++counter=2, \result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L33] 0 \read(first_thread_id) VAL [++counter=2, \result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L33] FCALL, JOIN 1 pthread_join(first_thread_id, NULL) VAL [++counter=2, \result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L34] 0 \read(second_thread_id) VAL [++counter=2, \result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L18] 2 return 0; VAL [++counter=1, \result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L34] FCALL, JOIN 2 pthread_join(second_thread_id, NULL) VAL [++counter=1, \result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L35] 0 \read(third_thread_id) VAL [++counter=1, \result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L17] 3 *x = ++counter VAL [++counter=1, \result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L18] 3 return 0; VAL [\result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L35] FCALL, JOIN 3 pthread_join(third_thread_id, NULL) VAL [\result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L37] FCALL 0 IdentifierExpression[val] VAL [\result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] [L37] 0 CodeAnnotStmt[Assertion] VAL [\result={0:0}, counter=3, n={6:0}, n={6:0}, x={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 6.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 13 SDtfs, 331 SDslu, 645 SDs, 0 SdLazy, 1285 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=400occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 25002 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...