/usr/bin/java -Xmx8000000000 -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-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/forkJoinInLoop.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 22:46:52,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 22:46:52,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 22:46:52,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-01 22:46:52,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-01 22:46:52,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-01 22:46:52,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-01 22:46:52,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-01 22:46:52,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-01 22:46:52,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-01 22:46:52,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-01 22:46:52,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-01 22:46:52,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-01 22:46:52,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-01 22:46:52,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-01 22:46:52,417 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-01 22:46:52,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-01 22:46:52,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-01 22:46:52,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-01 22:46:52,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-01 22:46:52,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-01 22:46:52,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-01 22:46:52,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-01 22:46:52,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-01 22:46:52,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-01 22:46:52,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 22:46:52,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 22:46:52,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 22:46:52,440 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-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-01 22:46:52,467 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 22:46:52,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 22:46:52,468 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 22:46:52,468 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 22:46:52,468 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 22:46:52,468 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 22:46:52,469 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 22:46:52,469 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 22:46:52,469 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 22:46:52,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 22:46:52,469 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 22:46:52,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 22:46:52,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 22:46:52,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 22:46:52,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 22:46:52,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 22:46:52,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 22:46:52,470 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 22:46:52,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 22:46:52,470 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 22:46:52,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 22:46:52,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 22:46:52,470 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 22:46:52,470 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 22:46:52,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 22:46:52,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 22:46:52,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 22:46:52,471 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-01 22:46:52,471 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 22:46:52,471 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 22:46:52,473 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 22:46:52,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 22:46:52,473 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 22:46:52,473 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-01 22:46:52,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 22:46:52,473 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-01 22:46:52,474 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-01 22:46:52,474 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-01 22:46:52,474 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 22:46:52,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 22:46:52,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 22:46:52,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 22:46:52,690 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-01 22:46:52,691 INFO L275 PluginConnector]: CDTParser initialized [2022-03-01 22:46:52,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/forkJoinInLoop.c [2022-03-01 22:46:52,732 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06110aef0/65e7df8c848c4075b50aca38bc49a242/FLAGee60d494a [2022-03-01 22:46:53,085 INFO L306 CDTParser]: Found 1 translation units. [2022-03-01 22:46:53,086 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/forkJoinInLoop.c [2022-03-01 22:46:53,086 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-01 22:46:53,087 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-01 22:46:53,112 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06110aef0/65e7df8c848c4075b50aca38bc49a242/FLAGee60d494a [2022-03-01 22:46:53,126 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06110aef0/65e7df8c848c4075b50aca38bc49a242 [2022-03-01 22:46:53,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 22:46:53,130 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-01 22:46:53,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-01 22:46:53,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-01 22:46:53,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-01 22:46:53,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 10:46:53" (1/1) ... [2022-03-01 22:46:53,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@699d4842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:46:53, skipping insertion in model container [2022-03-01 22:46:53,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 10:46:53" (1/1) ... [2022-03-01 22:46:53,140 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-01 22:46:53,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-01 22:46:53,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 22:46:53,306 INFO L203 MainTranslator]: Completed pre-run [2022-03-01 22:46:53,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 22:46:53,321 INFO L208 MainTranslator]: Completed translation [2022-03-01 22:46:53,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:46:53 WrapperNode [2022-03-01 22:46:53,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-01 22:46:53,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 22:46:53,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 22:46:53,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 22:46:53,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:46:53" (1/1) ... [2022-03-01 22:46:53,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:46:53" (1/1) ... [2022-03-01 22:46:53,343 INFO L137 Inliner]: procedures = 10, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48 [2022-03-01 22:46:53,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 22:46:53,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 22:46:53,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 22:46:53,344 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 22:46:53,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:46:53" (1/1) ... [2022-03-01 22:46:53,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:46:53" (1/1) ... [2022-03-01 22:46:53,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:46:53" (1/1) ... [2022-03-01 22:46:53,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:46:53" (1/1) ... [2022-03-01 22:46:53,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:46:53" (1/1) ... [2022-03-01 22:46:53,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:46:53" (1/1) ... [2022-03-01 22:46:53,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:46:53" (1/1) ... [2022-03-01 22:46:53,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 22:46:53,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 22:46:53,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 22:46:53,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 22:46:53,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:46:53" (1/1) ... [2022-03-01 22:46:53,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 22:46:53,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:46:53,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-01 22:46:53,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-01 22:46:53,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-01 22:46:53,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-01 22:46:53,466 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-03-01 22:46:53,466 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-03-01 22:46:53,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 22:46:53,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 22:46:53,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-01 22:46:53,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-01 22:46:53,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-01 22:46:53,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-01 22:46:53,468 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 22:46:53,527 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 22:46:53,529 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 22:46:53,663 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 22:46:53,668 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 22:46:53,668 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-01 22:46:53,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 10:46:53 BoogieIcfgContainer [2022-03-01 22:46:53,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 22:46:53,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 22:46:53,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 22:46:53,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 22:46:53,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.03 10:46:53" (1/3) ... [2022-03-01 22:46:53,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e71c233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 10:46:53, skipping insertion in model container [2022-03-01 22:46:53,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 10:46:53" (2/3) ... [2022-03-01 22:46:53,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e71c233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 10:46:53, skipping insertion in model container [2022-03-01 22:46:53,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 10:46:53" (3/3) ... [2022-03-01 22:46:53,675 INFO L111 eAbstractionObserver]: Analyzing ICFG forkJoinInLoop.c [2022-03-01 22:46:53,680 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 22:46:53,680 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 22:46:53,691 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 22:46:53,691 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 22:46:53,717 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:46:53,718 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:46:53,718 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:46:53,718 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:46:53,719 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:46:53,719 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:46:53,719 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:46:53,719 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:46:53,720 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:46:53,720 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:46:53,726 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:46:53,726 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:46:53,726 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:46:53,727 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:46:53,727 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:46:53,735 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-03-01 22:46:53,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-01 22:46:53,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:46:53,774 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-01 22:46:53,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-01 22:46:53,802 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 22:46:53,808 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-01 22:46:53,808 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-01 22:46:53,843 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 16 transitions and produced 17 states. [2022-03-01 22:46:53,844 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-01 22:46:53,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:46:53,849 INFO L85 PathProgramCache]: Analyzing trace with hash -687358722, now seen corresponding path program 1 times [2022-03-01 22:46:53,856 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:46:53,856 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581799394] [2022-03-01 22:46:53,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:46:53,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:46:53,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:46:53,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:46:53,982 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 22:46:53,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581799394] [2022-03-01 22:46:53,983 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581799394] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 22:46:53,984 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 22:46:53,984 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-01 22:46:53,985 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023829452] [2022-03-01 22:46:53,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 22:46:53,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-01 22:46:53,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 22:46:54,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-01 22:46:54,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-01 22:46:54,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:46:54,009 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 22:46:54,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2022-03-01 22:46:54,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:46:54,018 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 19 transitions and produced 20 states. [2022-03-01 22:46:54,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:46:54,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 22:46:54,019 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-01 22:46:54,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:46:54,020 INFO L85 PathProgramCache]: Analyzing trace with hash 873243086, now seen corresponding path program 1 times [2022-03-01 22:46:54,021 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:46:54,021 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791537014] [2022-03-01 22:46:54,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:46:54,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:46:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:46:54,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:46:54,106 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 22:46:54,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791537014] [2022-03-01 22:46:54,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791537014] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 22:46:54,106 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 22:46:54,106 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-01 22:46:54,107 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641957531] [2022-03-01 22:46:54,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 22:46:54,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-01 22:46:54,108 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 22:46:54,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-01 22:46:54,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-01 22:46:54,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:46:54,109 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 22:46:54,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-03-01 22:46:54,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:46:54,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:46:54,257 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 53 transitions and produced 54 states. [2022-03-01 22:46:54,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:46:54,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-01 22:46:54,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 22:46:54,258 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-01 22:46:54,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:46:54,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1896857757, now seen corresponding path program 1 times [2022-03-01 22:46:54,259 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:46:54,259 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578230650] [2022-03-01 22:46:54,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:46:54,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:46:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:46:54,396 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:46:54,396 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 22:46:54,396 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578230650] [2022-03-01 22:46:54,396 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578230650] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 22:46:54,396 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688163665] [2022-03-01 22:46:54,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:46:54,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 22:46:54,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:46:54,399 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 22:46:54,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-01 22:46:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:46:54,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 14 conjunts are in the unsatisfiable core [2022-03-01 22:46:54,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 22:46:54,507 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-01 22:46:54,535 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-01 22:46:54,536 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-03-01 22:46:54,618 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-03-01 22:46:54,741 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-03-01 22:46:54,754 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-03-01 22:46:54,759 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:46:54,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 22:46:54,849 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_26 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#thread_id~0#1.base| v_ArrVal_26) |c_ULTIMATE.start_main_~#x~0#1.base|) |c_ULTIMATE.start_main_~#x~0#1.offset|) 1)) is different from false [2022-03-01 22:46:54,887 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2022-03-01 22:46:54,914 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-03-01 22:46:54,914 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688163665] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 22:46:54,914 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 22:46:54,914 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 18 [2022-03-01 22:46:54,914 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449230692] [2022-03-01 22:46:54,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 22:46:54,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 22:46:54,916 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 22:46:54,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 22:46:54,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=222, Unknown=1, NotChecked=30, Total=306 [2022-03-01 22:46:54,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:46:54,918 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 22:46:54,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 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) [2022-03-01 22:46:54,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:46:54,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-01 22:46:54,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:46:55,368 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 87 transitions and produced 88 states. [2022-03-01 22:46:55,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:46:55,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-01 22:46:55,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-01 22:46:55,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-01 22:46:55,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-03-01 22:46:55,589 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-01 22:46:55,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:46:55,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1468554424, now seen corresponding path program 2 times [2022-03-01 22:46:55,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:46:55,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229392044] [2022-03-01 22:46:55,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:46:55,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:46:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-01 22:46:55,637 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-01 22:46:55,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-01 22:46:55,699 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-01 22:46:55,699 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-01 22:46:55,700 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-03-01 22:46:55,701 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-03-01 22:46:55,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-01 22:46:55,706 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-03-01 22:46:55,709 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-01 22:46:55,710 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-01 22:46:55,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.03 10:46:55 BasicIcfg [2022-03-01 22:46:55,762 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-01 22:46:55,762 INFO L158 Benchmark]: Toolchain (without parser) took 2631.98ms. Allocated memory was 241.2MB in the beginning and 343.9MB in the end (delta: 102.8MB). Free memory was 188.6MB in the beginning and 149.7MB in the end (delta: 39.0MB). Peak memory consumption was 143.2MB. Max. memory is 8.0GB. [2022-03-01 22:46:55,763 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 241.2MB. Free memory was 206.5MB in the beginning and 206.5MB in the end (delta: 74.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-01 22:46:55,763 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.09ms. Allocated memory is still 241.2MB. Free memory was 188.4MB in the beginning and 214.5MB in the end (delta: -26.1MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. [2022-03-01 22:46:55,763 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.76ms. Allocated memory is still 241.2MB. Free memory was 214.5MB in the beginning and 213.4MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-01 22:46:55,764 INFO L158 Benchmark]: Boogie Preprocessor took 11.15ms. Allocated memory is still 241.2MB. Free memory was 213.4MB in the beginning and 212.4MB in the end (delta: 945.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-01 22:46:55,764 INFO L158 Benchmark]: RCFGBuilder took 314.07ms. Allocated memory is still 241.2MB. Free memory was 211.9MB in the beginning and 201.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-01 22:46:55,764 INFO L158 Benchmark]: TraceAbstraction took 2091.00ms. Allocated memory was 241.2MB in the beginning and 343.9MB in the end (delta: 102.8MB). Free memory was 200.9MB in the beginning and 149.7MB in the end (delta: 51.2MB). Peak memory consumption was 155.1MB. Max. memory is 8.0GB. [2022-03-01 22:46:55,766 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 241.2MB. Free memory was 206.5MB in the beginning and 206.5MB in the end (delta: 74.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 191.09ms. Allocated memory is still 241.2MB. Free memory was 188.4MB in the beginning and 214.5MB in the end (delta: -26.1MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.76ms. Allocated memory is still 241.2MB. Free memory was 214.5MB in the beginning and 213.4MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.15ms. Allocated memory is still 241.2MB. Free memory was 213.4MB in the beginning and 212.4MB in the end (delta: 945.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 314.07ms. Allocated memory is still 241.2MB. Free memory was 211.9MB in the beginning and 201.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2091.00ms. Allocated memory was 241.2MB in the beginning and 343.9MB in the end (delta: 102.8MB). Free memory was 200.9MB in the beginning and 149.7MB in the end (delta: 51.2MB). Peak memory consumption was 155.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 30]: assertion can be violated assertion can be violated We found a FailurePath: [L19] 0 pthread_t thread_id; VAL [thread_id={6:0}] [L21] 0 int x = 1; VAL [thread_id={6:0}, x={5:0}] [L23] EXPR 0 \read(x) VAL [\read(x)=1, thread_id={6:0}, x={5:0}] [L23] COND TRUE 0 x < 3 VAL [\read(x)=1, thread_id={6:0}, x={5:0}] [L24] FCALL, FORK 0 pthread_create(&thread_id, NULL, foo, &x) VAL [i={5:0}, pthread_create(&thread_id, NULL, foo, &x)=-2, thread_id={6:0}, x={5:0}] [L25] 0 \read(x) VAL [i={5:0}, thread_id={6:0}, x={5:0}] [L26] 0 \read(thread_id) VAL [\read(thread_id)=-2, i={5:0}, thread_id={6:0}, x={5:0}] [L15] 1 int y = 4; VAL [i={5:0}, i={5:0}, y=4] [L26] FCALL, JOIN 1 pthread_join(thread_id, NULL) VAL [\read(thread_id)=-2, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] [L27] 0 \read(x) VAL [i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] [L28] EXPR 0 \read(x) VAL [\read(x)=1, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] [L28] 0 x++ VAL [\read(x)=1, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, x++=1, y=4] [L23] EXPR 0 \read(x) VAL [\read(x)=2, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] [L23] COND TRUE 0 x < 3 VAL [\read(x)=2, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] [L24] FCALL, FORK 0 pthread_create(&thread_id, NULL, foo, &x) VAL [i={5:0}, pthread_create(&thread_id, NULL, foo, &x)=-1, thread_id={6:0}, x={5:0}] [L25] 0 \read(x) VAL [i={5:0}, thread_id={6:0}, x={5:0}] [L26] 0 \read(thread_id) VAL [\read(thread_id)=-1, i={5:0}, thread_id={6:0}, x={5:0}] [L15] 1 int y = 4; VAL [i={5:0}, i={5:0}, y=4] [L26] FCALL, JOIN 1 pthread_join(thread_id, NULL) VAL [\read(thread_id)=-1, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] [L27] 0 \read(x) VAL [i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] [L28] EXPR 0 \read(x) VAL [\read(x)=2, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] [L28] 0 x++ VAL [\read(x)=2, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, x++=2, y=4] [L23] EXPR 0 \read(x) VAL [\read(x)=3, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] [L23] COND FALSE 0 !(x < 3) VAL [\read(x)=3, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] [L30] 0 CodeAnnotStmt[Assertion] VAL [i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] - UnprovableResult [Line: 24]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 57 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 156 ConstructedInterpolants, 6 QuantifiedInterpolants, 799 SizeOfPredicates, 8 NumberOfNonLiveVariables, 107 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-03-01 22:46:55,817 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-03-01 22:46:56,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...