/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/06-begin-no-end.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 04:25:40,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 04:25:40,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 04:25:40,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 04:25:40,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 04:25:40,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 04:25:40,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 04:25:40,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 04:25:40,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 04:25:40,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 04:25:40,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 04:25:40,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 04:25:40,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 04:25:40,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 04:25:40,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 04:25:40,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 04:25:40,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 04:25:40,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 04:25:40,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 04:25:40,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 04:25:40,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 04:25:40,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 04:25:40,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 04:25:40,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 04:25:40,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-11 04:25:40,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-11 04:25:40,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-11 04:25:40,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-11 04:25:40,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-11 04:25:40,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-11 04:25:40,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 04:25:40,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 04:25:40,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 04:25:40,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 04:25:40,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 04:25:40,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 04:25:40,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 04:25:40,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 04:25:40,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 04:25:40,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 04:25:40,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 04:25:40,800 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 [2021-03-11 04:25:40,819 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 04:25:40,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 04:25:40,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 04:25:40,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 04:25:40,820 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 04:25:40,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 04:25:40,821 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 04:25:40,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 04:25:40,821 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 04:25:40,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 04:25:40,822 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 04:25:40,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 04:25:40,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 04:25:40,822 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 04:25:40,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 04:25:40,822 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 04:25:40,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 04:25:40,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 04:25:40,823 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 04:25:40,823 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 04:25:40,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 04:25:40,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 04:25:40,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 04:25:40,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 04:25:40,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 04:25:40,824 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 04:25:40,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 04:25:40,824 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-11 04:25:40,825 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 04:25:40,825 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 04:25:41,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 04:25:41,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 04:25:41,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 04:25:41,143 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 04:25:41,143 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 04:25:41,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/06-begin-no-end.c [2021-03-11 04:25:41,206 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceec323cc/391d5c01325540cdb20233b93d2c8f2d/FLAGa52ccf3a2 [2021-03-11 04:25:41,640 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 04:25:41,641 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/06-begin-no-end.c [2021-03-11 04:25:41,641 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-11 04:25:41,667 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceec323cc/391d5c01325540cdb20233b93d2c8f2d/FLAGa52ccf3a2 [2021-03-11 04:25:42,033 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceec323cc/391d5c01325540cdb20233b93d2c8f2d [2021-03-11 04:25:42,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 04:25:42,040 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 04:25:42,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 04:25:42,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 04:25:42,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 04:25:42,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 04:25:42" (1/1) ... [2021-03-11 04:25:42,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f38e6b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:42, skipping insertion in model container [2021-03-11 04:25:42,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 04:25:42" (1/1) ... [2021-03-11 04:25:42,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 04:25:42,062 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 04:25:42,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 04:25:42,158 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 04:25:42,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 04:25:42,225 INFO L208 MainTranslator]: Completed translation [2021-03-11 04:25:42,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:42 WrapperNode [2021-03-11 04:25:42,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 04:25:42,227 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 04:25:42,227 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 04:25:42,227 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 04:25:42,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:42" (1/1) ... [2021-03-11 04:25:42,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:42" (1/1) ... [2021-03-11 04:25:42,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 04:25:42,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 04:25:42,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 04:25:42,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 04:25:42,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:42" (1/1) ... [2021-03-11 04:25:42,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:42" (1/1) ... [2021-03-11 04:25:42,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:42" (1/1) ... [2021-03-11 04:25:42,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:42" (1/1) ... [2021-03-11 04:25:42,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:42" (1/1) ... [2021-03-11 04:25:42,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:42" (1/1) ... [2021-03-11 04:25:42,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:42" (1/1) ... [2021-03-11 04:25:42,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 04:25:42,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 04:25:42,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 04:25:42,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 04:25:42,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:42" (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 [2021-03-11 04:25:42,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 04:25:42,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 04:25:42,331 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-11 04:25:42,332 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-11 04:25:42,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 04:25:42,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 04:25:42,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 04:25:42,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 04:25:42,334 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 04:25:42,613 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 04:25:42,613 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-11 04:25:42,614 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: ULTIMATE.startEXIT is neither atomic block end nor error location. [2021-03-11 04:25:42,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:25:42 BoogieIcfgContainer [2021-03-11 04:25:42,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 04:25:42,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 04:25:42,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 04:25:42,622 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 04:25:42,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 04:25:42" (1/3) ... [2021-03-11 04:25:42,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5983e3a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 04:25:42, skipping insertion in model container [2021-03-11 04:25:42,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:42" (2/3) ... [2021-03-11 04:25:42,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5983e3a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 04:25:42, skipping insertion in model container [2021-03-11 04:25:42,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:25:42" (3/3) ... [2021-03-11 04:25:42,625 INFO L111 eAbstractionObserver]: Analyzing ICFG 06-begin-no-end.c [2021-03-11 04:25:42,630 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 04:25:42,633 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 04:25:42,633 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 04:25:42,660 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:42,660 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:42,660 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:42,661 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:42,661 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:42,661 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:42,661 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:42,661 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:42,662 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:42,662 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:42,662 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:42,662 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:42,664 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:42,664 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:42,664 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:42,665 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:42,668 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 04:25:42,683 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-11 04:25:42,716 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 04:25:42,716 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 04:25:42,716 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 04:25:42,716 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 04:25:42,717 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 04:25:42,717 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 04:25:42,717 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 04:25:42,717 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 04:25:42,724 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 22 places, 18 transitions, 41 flow [2021-03-11 04:25:42,754 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-03-11 04:25:42,754 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 04:25:42,756 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-03-11 04:25:42,756 INFO L82 GeneralOperation]: Start removeDead. Operand has 22 places, 18 transitions, 41 flow [2021-03-11 04:25:42,768 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 18 places, 14 transitions, 31 flow [2021-03-11 04:25:42,775 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-03-11 04:25:42,775 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 04:25:42,775 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:25:42,776 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:25:42,776 INFO L428 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 04:25:42,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:25:42,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1304128498, now seen corresponding path program 1 times [2021-03-11 04:25:42,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:25:42,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097843899] [2021-03-11 04:25:42,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:25:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:25:42,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:42,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:25:42,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:42,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 04:25:42,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:25:42,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097843899] [2021-03-11 04:25:42,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:25:42,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 04:25:42,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402847460] [2021-03-11 04:25:42,937 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:25:42,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:25:42,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:25:42,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:25:42,951 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 18 [2021-03-11 04:25:42,953 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 14 transitions, 31 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-03-11 04:25:42,953 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:25:42,953 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 18 [2021-03-11 04:25:42,954 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:25:42,972 INFO L129 PetriNetUnfolder]: 1/15 cut-off events. [2021-03-11 04:25:42,972 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 04:25:42,973 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 15 events. 1/15 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 2/17 useless extension candidates. Maximal degree in co-relation 10. Up to 4 conditions per place. [2021-03-11 04:25:42,974 INFO L132 encePairwiseOnDemand]: 15/18 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2021-03-11 04:25:42,974 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 15 transitions, 43 flow [2021-03-11 04:25:42,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:25:42,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:25:42,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 45 transitions. [2021-03-11 04:25:42,982 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2021-03-11 04:25:42,983 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 45 transitions. [2021-03-11 04:25:42,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 45 transitions. [2021-03-11 04:25:42,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:25:42,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 45 transitions. [2021-03-11 04:25:42,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2021-03-11 04:25:42,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2021-03-11 04:25:42,991 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2021-03-11 04:25:42,992 INFO L185 Difference]: Start difference. First operand has 18 places, 14 transitions, 31 flow. Second operand 3 states and 45 transitions. [2021-03-11 04:25:42,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 15 transitions, 43 flow [2021-03-11 04:25:42,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 15 transitions, 42 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:25:42,997 INFO L241 Difference]: Finished difference. Result has 18 places, 0 transitions, 0 flow [2021-03-11 04:25:42,999 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=18, PETRI_TRANSITIONS=0} [2021-03-11 04:25:43,000 INFO L335 CegarLoopForPetriNet]: 18 programPoint places, 0 predicate places. [2021-03-11 04:25:43,000 INFO L480 AbstractCegarLoop]: Abstraction has has 18 places, 0 transitions, 0 flow [2021-03-11 04:25:43,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-03-11 04:25:43,001 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 04:25:43,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 04:25:43 BasicIcfg [2021-03-11 04:25:43,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 04:25:43,008 INFO L168 Benchmark]: Toolchain (without parser) took 970.00 ms. Allocated memory was 255.9 MB in the beginning and 390.1 MB in the end (delta: 134.2 MB). Free memory was 235.2 MB in the beginning and 336.8 MB in the end (delta: -101.6 MB). Peak memory consumption was 30.0 MB. Max. memory is 16.0 GB. [2021-03-11 04:25:43,008 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 04:25:43,011 INFO L168 Benchmark]: CACSL2BoogieTranslator took 184.73 ms. Allocated memory was 255.9 MB in the beginning and 390.1 MB in the end (delta: 134.2 MB). Free memory was 234.3 MB in the beginning and 374.8 MB in the end (delta: -140.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-11 04:25:43,011 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.60 ms. Allocated memory is still 390.1 MB. Free memory was 374.8 MB in the beginning and 373.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 04:25:43,012 INFO L168 Benchmark]: Boogie Preprocessor took 12.13 ms. Allocated memory is still 390.1 MB. Free memory was 373.4 MB in the beginning and 372.4 MB in the end (delta: 940.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 04:25:43,013 INFO L168 Benchmark]: RCFGBuilder took 351.83 ms. Allocated memory is still 390.1 MB. Free memory was 372.3 MB in the beginning and 359.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-11 04:25:43,013 INFO L168 Benchmark]: TraceAbstraction took 389.06 ms. Allocated memory is still 390.1 MB. Free memory was 358.7 MB in the beginning and 336.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-03-11 04:25:43,020 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 184.73 ms. Allocated memory was 255.9 MB in the beginning and 390.1 MB in the end (delta: 134.2 MB). Free memory was 234.3 MB in the beginning and 374.8 MB in the end (delta: -140.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.60 ms. Allocated memory is still 390.1 MB. Free memory was 374.8 MB in the beginning and 373.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.13 ms. Allocated memory is still 390.1 MB. Free memory was 373.4 MB in the beginning and 372.4 MB in the end (delta: 940.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 351.83 ms. Allocated memory is still 390.1 MB. Free memory was 372.3 MB in the beginning and 359.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 389.06 ms. Allocated memory is still 390.1 MB. Free memory was 358.7 MB in the beginning and 336.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 6.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 291.7ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 54.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 51.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, 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: 8.1ms SsaConstructionTime, 21.2ms SatisfiabilityAnalysisTime, 55.0ms InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 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 correct! Received shutdown request...