/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/14a-subsequent-blocks.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 20:31:14,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 20:31:14,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 20:31:14,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-10 20:31:14,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-10 20:31:14,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-10 20:31:14,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-10 20:31:14,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-10 20:31:14,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-10 20:31:14,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-10 20:31:14,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-10 20:31:14,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-10 20:31:14,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-10 20:31:15,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-10 20:31:15,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-10 20:31:15,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-10 20:31:15,028 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-10 20:31:15,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-10 20:31:15,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-10 20:31:15,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-10 20:31:15,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-10 20:31:15,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-10 20:31:15,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-10 20:31:15,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-10 20:31:15,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-10 20:31:15,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 20:31:15,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 20:31:15,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 20:31:15,063 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-03-10 20:31:15,104 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 20:31:15,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 20:31:15,104 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 20:31:15,105 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 20:31:15,108 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 20:31:15,108 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 20:31:15,108 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 20:31:15,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 20:31:15,108 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 20:31:15,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 20:31:15,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 20:31:15,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 20:31:15,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 20:31:15,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 20:31:15,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 20:31:15,110 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 20:31:15,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 20:31:15,110 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 20:31:15,110 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 20:31:15,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 20:31:15,111 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 20:31:15,111 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 20:31:15,111 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 20:31:15,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 20:31:15,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 20:31:15,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 20:31:15,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 20:31:15,112 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 20:31:15,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 20:31:15,112 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 20:31:15,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 20:31:15,112 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 20:31:15,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 20:31:15,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 20:31:15,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 20:31:15,450 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 20:31:15,451 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 20:31:15,452 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/14a-subsequent-blocks.c [2021-03-10 20:31:15,510 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e3068450/a6db3b7ca2ce4ec5baff5e68922b738c/FLAG637bc51d7 [2021-03-10 20:31:15,936 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 20:31:15,936 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/14a-subsequent-blocks.c [2021-03-10 20:31:15,937 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-10 20:31:15,973 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e3068450/a6db3b7ca2ce4ec5baff5e68922b738c/FLAG637bc51d7 [2021-03-10 20:31:16,481 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e3068450/a6db3b7ca2ce4ec5baff5e68922b738c [2021-03-10 20:31:16,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 20:31:16,488 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 20:31:16,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 20:31:16,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 20:31:16,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 20:31:16,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 08:31:16" (1/1) ... [2021-03-10 20:31:16,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7512c0e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:16, skipping insertion in model container [2021-03-10 20:31:16,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 08:31:16" (1/1) ... [2021-03-10 20:31:16,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 20:31:16,507 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 20:31:16,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 20:31:16,599 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 20:31:16,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 20:31:16,620 INFO L208 MainTranslator]: Completed translation [2021-03-10 20:31:16,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:16 WrapperNode [2021-03-10 20:31:16,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 20:31:16,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 20:31:16,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 20:31:16,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 20:31:16,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:16" (1/1) ... [2021-03-10 20:31:16,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:16" (1/1) ... [2021-03-10 20:31:16,681 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 20:31:16,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 20:31:16,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 20:31:16,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 20:31:16,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:16" (1/1) ... [2021-03-10 20:31:16,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:16" (1/1) ... [2021-03-10 20:31:16,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:16" (1/1) ... [2021-03-10 20:31:16,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:16" (1/1) ... [2021-03-10 20:31:16,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:16" (1/1) ... [2021-03-10 20:31:16,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:16" (1/1) ... [2021-03-10 20:31:16,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:16" (1/1) ... [2021-03-10 20:31:16,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 20:31:16,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 20:31:16,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 20:31:16,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 20:31:16,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:16" (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 [2021-03-10 20:31:16,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 20:31:16,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-10 20:31:16,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-10 20:31:16,760 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-10 20:31:16,761 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-10 20:31:16,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 20:31:16,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 20:31:16,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 20:31:16,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 20:31:16,764 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 20:31:17,015 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 20:31:17,015 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-10 20:31:17,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 08:31:17 BoogieIcfgContainer [2021-03-10 20:31:17,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 20:31:17,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 20:31:17,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 20:31:17,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 20:31:17,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 08:31:16" (1/3) ... [2021-03-10 20:31:17,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1557c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 08:31:17, skipping insertion in model container [2021-03-10 20:31:17,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:16" (2/3) ... [2021-03-10 20:31:17,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1557c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 08:31:17, skipping insertion in model container [2021-03-10 20:31:17,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 08:31:17" (3/3) ... [2021-03-10 20:31:17,024 INFO L111 eAbstractionObserver]: Analyzing ICFG 14a-subsequent-blocks.c [2021-03-10 20:31:17,028 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 20:31:17,029 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 20:31:17,052 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-10 20:31:17,053 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 20:31:17,079 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:17,079 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:17,080 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:17,080 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:17,081 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:17,081 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:17,081 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:17,081 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:17,084 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:17,084 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:17,085 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:17,085 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:17,087 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:17,088 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:17,088 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:17,088 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:17,100 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-10 20:31:17,115 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-10 20:31:17,143 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 20:31:17,144 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 20:31:17,144 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 20:31:17,144 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 20:31:17,144 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 20:31:17,144 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 20:31:17,144 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 20:31:17,144 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 20:31:17,153 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 23 transitions, 51 flow [2021-03-10 20:31:17,168 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 65 states, 63 states have (on average 1.6825396825396826) internal successors, (106), 64 states have internal predecessors, (106), 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) [2021-03-10 20:31:17,170 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 63 states have (on average 1.6825396825396826) internal successors, (106), 64 states have internal predecessors, (106), 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) [2021-03-10 20:31:17,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-03-10 20:31:17,185 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:31:17,186 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 20:31:17,186 INFO L428 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:31:17,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:31:17,192 INFO L82 PathProgramCache]: Analyzing trace with hash 764716560, now seen corresponding path program 1 times [2021-03-10 20:31:17,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:31:17,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800000200] [2021-03-10 20:31:17,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:31:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 20:31:17,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 20:31:17,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800000200] [2021-03-10 20:31:17,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 20:31:17,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-10 20:31:17,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148777349] [2021-03-10 20:31:17,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-10 20:31:17,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 20:31:17,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-10 20:31:17,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 20:31:17,376 INFO L87 Difference]: Start difference. First operand has 65 states, 63 states have (on average 1.6825396825396826) internal successors, (106), 64 states have internal predecessors, (106), 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 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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) [2021-03-10 20:31:17,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 20:31:17,405 INFO L93 Difference]: Finished difference Result 57 states and 91 transitions. [2021-03-10 20:31:17,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-10 20:31:17,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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) Word has length 12 [2021-03-10 20:31:17,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 20:31:17,411 INFO L225 Difference]: With dead ends: 57 [2021-03-10 20:31:17,411 INFO L226 Difference]: Without dead ends: 0 [2021-03-10 20:31:17,412 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 20:31:17,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-10 20:31:17,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-10 20:31:17,429 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) [2021-03-10 20:31:17,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-10 20:31:17,430 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-03-10 20:31:17,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 20:31:17,431 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-10 20:31:17,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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) [2021-03-10 20:31:17,431 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-10 20:31:17,431 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-10 20:31:17,432 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 20:31:17,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 08:31:17 BasicIcfg [2021-03-10 20:31:17,435 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 20:31:17,437 INFO L168 Benchmark]: Toolchain (without parser) took 951.44 ms. Allocated memory was 255.9 MB in the beginning and 377.5 MB in the end (delta: 121.6 MB). Free memory was 237.6 MB in the beginning and 327.5 MB in the end (delta: -90.0 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.0 GB. [2021-03-10 20:31:17,437 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 238.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 20:31:17,438 INFO L168 Benchmark]: CACSL2BoogieTranslator took 132.04 ms. Allocated memory is still 255.9 MB. Free memory was 237.1 MB in the beginning and 228.1 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-03-10 20:31:17,446 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.20 ms. Allocated memory was 255.9 MB in the beginning and 377.5 MB in the end (delta: 121.6 MB). Free memory was 228.1 MB in the beginning and 361.8 MB in the end (delta: -133.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-10 20:31:17,447 INFO L168 Benchmark]: Boogie Preprocessor took 12.32 ms. Allocated memory is still 377.5 MB. Free memory was 361.8 MB in the beginning and 360.8 MB in the end (delta: 951.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 20:31:17,448 INFO L168 Benchmark]: RCFGBuilder took 322.01 ms. Allocated memory is still 377.5 MB. Free memory was 360.7 MB in the beginning and 348.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-03-10 20:31:17,449 INFO L168 Benchmark]: TraceAbstraction took 416.97 ms. Allocated memory is still 377.5 MB. Free memory was 347.9 MB in the beginning and 327.5 MB in the end (delta: 20.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-03-10 20:31:17,457 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 238.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 132.04 ms. Allocated memory is still 255.9 MB. Free memory was 237.1 MB in the beginning and 228.1 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 60.20 ms. Allocated memory was 255.9 MB in the beginning and 377.5 MB in the end (delta: 121.6 MB). Free memory was 228.1 MB in the beginning and 361.8 MB in the end (delta: -133.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.32 ms. Allocated memory is still 377.5 MB. Free memory was 361.8 MB in the beginning and 360.8 MB in the end (delta: 951.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 322.01 ms. Allocated memory is still 377.5 MB. Free memory was 360.7 MB in the beginning and 348.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 416.97 ms. Allocated memory is still 377.5 MB. Free memory was 347.9 MB in the beginning and 327.5 MB in the end (delta: 20.4 MB). Peak memory consumption was 18.9 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, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 290.6ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 16.5ms, AutomataDifference: 52.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 23.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 20 SDtfs, 14 SDslu, 3 SDs, 0 SdLazy, 1 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred 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: 7.2ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 13.3ms SsaConstructionTime, 21.5ms SatisfiabilityAnalysisTime, 61.0ms 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...