/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/03-assert.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 14:03:11,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 14:03:11,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 14:03:11,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 14:03:11,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 14:03:11,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 14:03:11,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 14:03:11,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 14:03:11,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 14:03:11,594 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 14:03:11,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 14:03:11,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 14:03:11,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 14:03:11,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 14:03:11,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 14:03:11,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 14:03:11,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 14:03:11,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 14:03:11,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 14:03:11,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 14:03:11,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 14:03:11,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 14:03:11,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 14:03:11,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 14:03:11,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-11 14:03:11,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-11 14:03:11,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-11 14:03:11,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-11 14:03:11,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-11 14:03:11,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-11 14:03:11,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 14:03:11,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 14:03:11,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 14:03:11,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 14:03:11,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 14:03:11,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 14:03:11,616 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 14:03:11,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 14:03:11,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 14:03:11,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 14:03:11,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 14:03:11,623 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2021-03-11 14:03:11,651 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 14:03:11,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 14:03:11,652 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 14:03:11,652 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 14:03:11,652 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 14:03:11,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 14:03:11,652 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 14:03:11,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 14:03:11,653 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 14:03:11,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 14:03:11,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 14:03:11,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 14:03:11,653 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 14:03:11,653 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 14:03:11,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 14:03:11,653 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 14:03:11,654 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 14:03:11,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 14:03:11,654 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 14:03:11,654 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 14:03:11,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 14:03:11,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 14:03:11,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 14:03:11,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 14:03:11,655 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 14:03:11,655 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 14:03:11,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 14:03:11,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 14:03:11,655 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 14:03:11,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 14:03:11,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 14:03:11,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 14:03:11,951 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 14:03:11,952 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 14:03:11,953 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/03-assert.c [2021-03-11 14:03:12,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac79211c5/51c1b30bdb6042179599f6bf62a4e938/FLAGa6c692307 [2021-03-11 14:03:12,411 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 14:03:12,412 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/03-assert.c [2021-03-11 14:03:12,412 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-11 14:03:12,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac79211c5/51c1b30bdb6042179599f6bf62a4e938/FLAGa6c692307 [2021-03-11 14:03:12,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac79211c5/51c1b30bdb6042179599f6bf62a4e938 [2021-03-11 14:03:12,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 14:03:12,841 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 14:03:12,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 14:03:12,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 14:03:12,847 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 14:03:12,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:03:12" (1/1) ... [2021-03-11 14:03:12,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c3f38c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:03:12, skipping insertion in model container [2021-03-11 14:03:12,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:03:12" (1/1) ... [2021-03-11 14:03:12,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 14:03:12,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 14:03:12,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 14:03:12,973 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 14:03:12,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 14:03:13,017 INFO L208 MainTranslator]: Completed translation [2021-03-11 14:03:13,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:03:13 WrapperNode [2021-03-11 14:03:13,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 14:03:13,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 14:03:13,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 14:03:13,018 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 14:03:13,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:03:13" (1/1) ... [2021-03-11 14:03:13,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:03:13" (1/1) ... [2021-03-11 14:03:13,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 14:03:13,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 14:03:13,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 14:03:13,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 14:03:13,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:03:13" (1/1) ... [2021-03-11 14:03:13,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:03:13" (1/1) ... [2021-03-11 14:03:13,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:03:13" (1/1) ... [2021-03-11 14:03:13,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:03:13" (1/1) ... [2021-03-11 14:03:13,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:03:13" (1/1) ... [2021-03-11 14:03:13,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:03:13" (1/1) ... [2021-03-11 14:03:13,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:03:13" (1/1) ... [2021-03-11 14:03:13,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 14:03:13,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 14:03:13,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 14:03:13,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 14:03:13,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:03:13" (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 14:03:13,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 14:03:13,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 14:03:13,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 14:03:13,138 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-11 14:03:13,138 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-11 14:03:13,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 14:03:13,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 14:03:13,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 14:03:13,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 14:03:13,141 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 14:03:13,368 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 14:03:13,369 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-11 14:03:13,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:03:13 BoogieIcfgContainer [2021-03-11 14:03:13,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 14:03:13,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 14:03:13,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 14:03:13,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 14:03:13,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 02:03:12" (1/3) ... [2021-03-11 14:03:13,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bc9a60a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:03:13, skipping insertion in model container [2021-03-11 14:03:13,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:03:13" (2/3) ... [2021-03-11 14:03:13,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bc9a60a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:03:13, skipping insertion in model container [2021-03-11 14:03:13,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:03:13" (3/3) ... [2021-03-11 14:03:13,376 INFO L111 eAbstractionObserver]: Analyzing ICFG 03-assert.c [2021-03-11 14:03:13,397 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 14:03:13,397 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 14:03:13,400 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-11 14:03:13,401 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 14:03:13,432 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:03:13,432 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:03:13,432 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:03:13,432 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:03:13,432 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:03:13,432 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:03:13,433 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:03:13,433 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:03:13,433 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:03:13,433 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:03:13,433 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:03:13,433 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:03:13,435 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:03:13,435 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:03:13,435 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:03:13,435 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:03:13,437 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 14:03:13,450 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-11 14:03:13,465 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 14:03:13,465 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 14:03:13,465 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 14:03:13,465 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 14:03:13,465 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 14:03:13,465 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 14:03:13,465 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 14:03:13,465 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 14:03:13,473 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 14:03:13,480 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 23 transitions, 51 flow [2021-03-11 14:03:13,482 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 23 transitions, 51 flow [2021-03-11 14:03:13,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 51 flow [2021-03-11 14:03:13,500 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-03-11 14:03:13,500 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 14:03:13,501 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-03-11 14:03:13,502 INFO L116 LiptonReduction]: Number of co-enabled transitions 72 [2021-03-11 14:03:14,072 INFO L131 LiptonReduction]: Checked pairs total: 45 [2021-03-11 14:03:14,072 INFO L133 LiptonReduction]: Total number of compositions: 18 [2021-03-11 14:03:14,080 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 11 places, 7 transitions, 19 flow [2021-03-11 14:03:14,087 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 10 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 9 states have internal predecessors, (12), 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 14:03:14,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 9 states have internal predecessors, (12), 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 14:03:14,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-03-11 14:03:14,092 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:03:14,092 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-03-11 14:03:14,093 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-03-11 14:03:14,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:03:14,102 INFO L82 PathProgramCache]: Analyzing trace with hash 111680, now seen corresponding path program 1 times [2021-03-11 14:03:14,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:03:14,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777870449] [2021-03-11 14:03:14,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:03:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:03:14,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:03:14,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:03:14,208 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 14:03:14,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777870449] [2021-03-11 14:03:14,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:03:14,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-11 14:03:14,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188508977] [2021-03-11 14:03:14,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-11 14:03:14,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:03:14,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-11 14:03:14,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-11 14:03:14,224 INFO L87 Difference]: Start difference. First operand has 10 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 14:03:14,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:03:14,231 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2021-03-11 14:03:14,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-11 14:03:14,232 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-03-11 14:03:14,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:03:14,236 INFO L225 Difference]: With dead ends: 6 [2021-03-11 14:03:14,236 INFO L226 Difference]: Without dead ends: 0 [2021-03-11 14:03:14,237 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-11 14:03:14,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-11 14:03:14,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-11 14:03:14,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:03:14,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-11 14:03:14,254 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2021-03-11 14:03:14,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:03:14,254 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-11 14:03:14,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 14:03:14,254 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-11 14:03:14,254 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-11 14:03:14,255 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 14:03:14,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 02:03:14 BasicIcfg [2021-03-11 14:03:14,257 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 14:03:14,258 INFO L168 Benchmark]: Toolchain (without parser) took 1420.74 ms. Allocated memory is still 346.0 MB. Free memory was 308.8 MB in the beginning and 199.0 MB in the end (delta: 109.8 MB). Peak memory consumption was 107.8 MB. Max. memory is 16.0 GB. [2021-03-11 14:03:14,260 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 346.0 MB. Free memory was 327.5 MB in the beginning and 327.4 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 14:03:14,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 173.69 ms. Allocated memory is still 346.0 MB. Free memory was 308.1 MB in the beginning and 330.0 MB in the end (delta: -21.9 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. [2021-03-11 14:03:14,263 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.31 ms. Allocated memory is still 346.0 MB. Free memory was 330.0 MB in the beginning and 327.9 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 14:03:14,264 INFO L168 Benchmark]: Boogie Preprocessor took 22.65 ms. Allocated memory is still 346.0 MB. Free memory was 327.9 MB in the beginning and 326.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 14:03:14,265 INFO L168 Benchmark]: RCFGBuilder took 300.76 ms. Allocated memory is still 346.0 MB. Free memory was 326.9 MB in the beginning and 311.2 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-11 14:03:14,266 INFO L168 Benchmark]: TraceAbstraction took 886.05 ms. Allocated memory is still 346.0 MB. Free memory was 311.2 MB in the beginning and 199.0 MB in the end (delta: 112.2 MB). Peak memory consumption was 111.1 MB. Max. memory is 16.0 GB. [2021-03-11 14:03:14,273 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 346.0 MB. Free memory was 327.5 MB in the beginning and 327.4 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 173.69 ms. Allocated memory is still 346.0 MB. Free memory was 308.1 MB in the beginning and 330.0 MB in the end (delta: -21.9 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 25.31 ms. Allocated memory is still 346.0 MB. Free memory was 330.0 MB in the beginning and 327.9 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 22.65 ms. Allocated memory is still 346.0 MB. Free memory was 327.9 MB in the beginning and 326.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 300.76 ms. Allocated memory is still 346.0 MB. Free memory was 326.9 MB in the beginning and 311.2 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 886.05 ms. Allocated memory is still 346.0 MB. Free memory was 311.2 MB in the beginning and 199.0 MB in the end (delta: 112.2 MB). Peak memory consumption was 111.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 590.2ms, 27 PlacesBefore, 11 PlacesAfterwards, 23 TransitionsBefore, 7 TransitionsAfterwards, 72 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 18 TotalNumberOfCompositions, 45 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 45, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 39, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 39, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 38, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 45, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 39, unknown conditional: 0, unknown unconditional: 39] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 34]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 24]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 792.1ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 5.0ms, AutomataDifference: 24.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 621.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 6.0ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.0ms SsaConstructionTime, 13.0ms SatisfiabilityAnalysisTime, 28.8ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 2 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...