/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-POR-DelaySleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/04-if-else.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98707888a4ba860d5b57d27ee0e051c5b948cbbf-9870788 [2021-06-01 23:28:35,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-01 23:28:35,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-01 23:28:35,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-01 23:28:35,291 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-POR-DelaySleep-NoLbe.epf [2021-06-01 23:28:35,324 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-01 23:28:35,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-01 23:28:35,328 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-01 23:28:35,328 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-01 23:28:35,330 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-01 23:28:35,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-01 23:28:35,331 INFO L138 SettingsManager]: * Use SBE=true [2021-06-01 23:28:35,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-01 23:28:35,331 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-01 23:28:35,331 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-01 23:28:35,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-01 23:28:35,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-01 23:28:35,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-01 23:28:35,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-01 23:28:35,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-01 23:28:35,333 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-01 23:28:35,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-01 23:28:35,333 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-01 23:28:35,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-01 23:28:35,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-01 23:28:35,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-01 23:28:35,333 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-01 23:28:35,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-01 23:28:35,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-01 23:28:35,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-01 23:28:35,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-01 23:28:35,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-01 23:28:35,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-01 23:28:35,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-01 23:28:35,334 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-01 23:28:35,335 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-01 23:28:35,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-01 23:28:35,335 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-01 23:28:35,335 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-01 23:28:35,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-01 23:28:35,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-01 23:28:35,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-01 23:28:35,698 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-01 23:28:35,700 INFO L275 PluginConnector]: CDTParser initialized [2021-06-01 23:28:35,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/04-if-else.c [2021-06-01 23:28:35,762 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aba7f9de/206dc609cdcb49d6bda750b7c90e7757/FLAG48b156b66 [2021-06-01 23:28:36,133 INFO L306 CDTParser]: Found 1 translation units. [2021-06-01 23:28:36,134 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/04-if-else.c [2021-06-01 23:28:36,134 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-01 23:28:36,165 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aba7f9de/206dc609cdcb49d6bda750b7c90e7757/FLAG48b156b66 [2021-06-01 23:28:36,543 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aba7f9de/206dc609cdcb49d6bda750b7c90e7757 [2021-06-01 23:28:36,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-01 23:28:36,549 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-01 23:28:36,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-01 23:28:36,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-01 23:28:36,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-01 23:28:36,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.06 11:28:36" (1/1) ... [2021-06-01 23:28:36,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a02a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:28:36, skipping insertion in model container [2021-06-01 23:28:36,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.06 11:28:36" (1/1) ... [2021-06-01 23:28:36,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-01 23:28:36,573 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-01 23:28:36,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-01 23:28:36,726 INFO L203 MainTranslator]: Completed pre-run [2021-06-01 23:28:36,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-01 23:28:36,743 INFO L208 MainTranslator]: Completed translation [2021-06-01 23:28:36,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:28:36 WrapperNode [2021-06-01 23:28:36,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-01 23:28:36,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-01 23:28:36,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-01 23:28:36,745 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-01 23:28:36,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:28:36" (1/1) ... [2021-06-01 23:28:36,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:28:36" (1/1) ... [2021-06-01 23:28:36,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-01 23:28:36,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-01 23:28:36,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-01 23:28:36,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-01 23:28:36,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:28:36" (1/1) ... [2021-06-01 23:28:36,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:28:36" (1/1) ... [2021-06-01 23:28:36,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:28:36" (1/1) ... [2021-06-01 23:28:36,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:28:36" (1/1) ... [2021-06-01 23:28:36,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:28:36" (1/1) ... [2021-06-01 23:28:36,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:28:36" (1/1) ... [2021-06-01 23:28:36,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:28:36" (1/1) ... [2021-06-01 23:28:36,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-01 23:28:36,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-01 23:28:36,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-01 23:28:36,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-01 23:28:36,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:28:36" (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 [2021-06-01 23:28:36,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-01 23:28:36,851 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-01 23:28:36,851 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-01 23:28:36,852 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-01 23:28:36,853 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-01 23:28:36,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-01 23:28:36,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-01 23:28:36,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-01 23:28:36,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-01 23:28:36,855 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-01 23:28:37,120 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-01 23:28:37,121 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-01 23:28:37,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.06 11:28:37 BoogieIcfgContainer [2021-06-01 23:28:37,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-01 23:28:37,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-01 23:28:37,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-01 23:28:37,126 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-01 23:28:37,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.06 11:28:36" (1/3) ... [2021-06-01 23:28:37,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3420b1a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.06 11:28:37, skipping insertion in model container [2021-06-01 23:28:37,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 11:28:36" (2/3) ... [2021-06-01 23:28:37,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3420b1a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.06 11:28:37, skipping insertion in model container [2021-06-01 23:28:37,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.06 11:28:37" (3/3) ... [2021-06-01 23:28:37,128 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-if-else.c [2021-06-01 23:28:37,133 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-01 23:28:37,133 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-01 23:28:37,133 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-01 23:28:37,134 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-01 23:28:37,176 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:28:37,177 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:28:37,177 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:28:37,177 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:28:37,177 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:28:37,177 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:28:37,177 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:28:37,178 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:28:37,178 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:28:37,178 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:28:37,178 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:28:37,178 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:28:37,180 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:28:37,180 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:28:37,180 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:28:37,180 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 23:28:37,189 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-01 23:28:37,207 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-01 23:28:37,245 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-01 23:28:37,246 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-01 23:28:37,246 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-01 23:28:37,246 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-01 23:28:37,246 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-01 23:28:37,246 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-01 23:28:37,246 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-01 23:28:37,246 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-01 23:28:37,269 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-01 23:28:37,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 23:28:37,273 INFO L82 PathProgramCache]: Analyzing trace with hash 2100531300, now seen corresponding path program 1 times [2021-06-01 23:28:37,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 23:28:37,281 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954372415] [2021-06-01 23:28:37,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 23:28:37,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 23:28:37,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 23:28:37,470 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 23:28:37,471 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954372415] [2021-06-01 23:28:37,471 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954372415] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 23:28:37,472 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 23:28:37,472 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-01 23:28:37,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757350767] [2021-06-01 23:28:37,476 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-01 23:28:37,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 23:28:37,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-01 23:28:37,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-01 23:28:37,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-01 23:28:37,496 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-01 23:28:37,501 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-06-01 23:28:37,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-01 23:28:37,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-01 23:28:37,587 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-01 23:28:37,593 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-01 23:28:37,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.06 11:28:37 BasicIcfg [2021-06-01 23:28:37,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-01 23:28:37,597 INFO L168 Benchmark]: Toolchain (without parser) took 1047.11 ms. Allocated memory is still 364.9 MB. Free memory was 326.9 MB in the beginning and 301.9 MB in the end (delta: 25.0 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.0 GB. [2021-06-01 23:28:37,597 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 364.9 MB. Free memory was 345.3 MB in the beginning and 345.2 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-01 23:28:37,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 192.37 ms. Allocated memory is still 364.9 MB. Free memory was 326.8 MB in the beginning and 348.0 MB in the end (delta: -21.2 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. [2021-06-01 23:28:37,598 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.13 ms. Allocated memory is still 364.9 MB. Free memory was 348.0 MB in the beginning and 347.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-01 23:28:37,599 INFO L168 Benchmark]: Boogie Preprocessor took 14.20 ms. Allocated memory is still 364.9 MB. Free memory was 347.0 MB in the beginning and 345.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-01 23:28:37,600 INFO L168 Benchmark]: RCFGBuilder took 339.29 ms. Allocated memory is still 364.9 MB. Free memory was 345.0 MB in the beginning and 330.2 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-06-01 23:28:37,600 INFO L168 Benchmark]: TraceAbstraction took 472.12 ms. Allocated memory is still 364.9 MB. Free memory was 329.2 MB in the beginning and 301.9 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-01 23:28:37,603 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 364.9 MB. Free memory was 345.3 MB in the beginning and 345.2 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 192.37 ms. Allocated memory is still 364.9 MB. Free memory was 326.8 MB in the beginning and 348.0 MB in the end (delta: -21.2 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.13 ms. Allocated memory is still 364.9 MB. Free memory was 348.0 MB in the beginning and 347.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 14.20 ms. Allocated memory is still 364.9 MB. Free memory was 347.0 MB in the beginning and 345.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 339.29 ms. Allocated memory is still 364.9 MB. Free memory was 345.0 MB in the beginning and 330.2 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 472.12 ms. Allocated memory is still 364.9 MB. Free memory was 329.2 MB in the beginning and 301.9 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 53, positive: 50, positive conditional: 50, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 51, positive: 50, positive conditional: 50, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 51, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 36, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 36, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 46, positive: 28, positive conditional: 4, positive unconditional: 24, negative: 18, negative conditional: 6, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 51, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 36, unknown conditional: 0, unknown unconditional: 36] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 35, Positive conditional cache size: 1, Positive unconditional cache size: 34, Negative cache size: 3, Negative conditional cache size: 1, Negative unconditional cache size: 2, SemanticConditionEliminator.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 46, positive: 28, positive conditional: 4, positive unconditional: 24, negative: 18, negative conditional: 6, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 35, Positive conditional cache size: 1, Positive unconditional cache size: 34, Negative cache size: 3, Negative conditional cache size: 1, Negative unconditional cache size: 2, Eliminated conditions: 0 ], Maximal queried relation: 1, Independence queries for same thread: 2 - PositiveResult [Line: 37]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 33 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 370.3ms, OverallIterations: 1, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.9ms, PartialOrderReductionTime: 98.7ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 5, 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: 4.2ms SsaConstructionTime, 27.6ms SatisfiabilityAnalysisTime, 104.4ms InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 37 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...