/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/forkJoinInLoop.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 13:57:26,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 13:57:26,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 13:57:26,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 13:57:26,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 13:57:26,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 13:57:26,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 13:57:26,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 13:57:26,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 13:57:26,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 13:57:26,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 13:57:26,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 13:57:26,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 13:57:26,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 13:57:26,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 13:57:26,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 13:57:26,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 13:57:26,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 13:57:26,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 13:57:26,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 13:57:26,477 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2022-01-18 13:57:26,489 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 13:57:26,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 13:57:26,489 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 13:57:26,489 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 13:57:26,490 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 13:57:26,490 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 13:57:26,490 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 13:57:26,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 13:57:26,490 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 13:57:26,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 13:57:26,491 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 13:57:26,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 13:57:26,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 13:57:26,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 13:57:26,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 13:57:26,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 13:57:26,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 13:57:26,491 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 13:57:26,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 13:57:26,492 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 13:57:26,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 13:57:26,492 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 13:57:26,492 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 13:57:26,492 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 13:57:26,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 13:57:26,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 13:57:26,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 13:57:26,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 13:57:26,493 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 13:57:26,493 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 13:57:26,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 13:57:26,493 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 13:57:26,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 13:57:26,493 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 13:57:26,493 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 13:57:26,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 13:57:26,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 13:57:26,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 13:57:26,666 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 13:57:26,668 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 13:57:26,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/forkJoinInLoop.c [2022-01-18 13:57:26,720 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c07538379/8b49489a92914694a3594e8f294b5482/FLAG6bf30b9f5 [2022-01-18 13:57:27,089 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 13:57:27,089 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/forkJoinInLoop.c [2022-01-18 13:57:27,090 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-01-18 13:57:27,090 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2022-01-18 13:57:27,120 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c07538379/8b49489a92914694a3594e8f294b5482/FLAG6bf30b9f5 [2022-01-18 13:57:27,134 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c07538379/8b49489a92914694a3594e8f294b5482 [2022-01-18 13:57:27,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 13:57:27,139 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 13:57:27,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 13:57:27,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 13:57:27,143 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 13:57:27,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:57:27" (1/1) ... [2022-01-18 13:57:27,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3be3d2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:57:27, skipping insertion in model container [2022-01-18 13:57:27,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:57:27" (1/1) ... [2022-01-18 13:57:27,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 13:57:27,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 13:57:27,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 13:57:27,305 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 13:57:27,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 13:57:27,324 INFO L208 MainTranslator]: Completed translation [2022-01-18 13:57:27,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:57:27 WrapperNode [2022-01-18 13:57:27,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 13:57:27,326 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 13:57:27,326 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 13:57:27,326 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 13:57:27,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:57:27" (1/1) ... [2022-01-18 13:57:27,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:57:27" (1/1) ... [2022-01-18 13:57:27,350 INFO L137 Inliner]: procedures = 10, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48 [2022-01-18 13:57:27,350 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 13:57:27,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 13:57:27,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 13:57:27,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 13:57:27,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:57:27" (1/1) ... [2022-01-18 13:57:27,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:57:27" (1/1) ... [2022-01-18 13:57:27,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:57:27" (1/1) ... [2022-01-18 13:57:27,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:57:27" (1/1) ... [2022-01-18 13:57:27,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:57:27" (1/1) ... [2022-01-18 13:57:27,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:57:27" (1/1) ... [2022-01-18 13:57:27,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:57:27" (1/1) ... [2022-01-18 13:57:27,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 13:57:27,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 13:57:27,371 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 13:57:27,371 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 13:57:27,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:57:27" (1/1) ... [2022-01-18 13:57:27,376 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 13:57:27,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 13:57:27,395 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) [2022-01-18 13:57:27,412 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 [2022-01-18 13:57:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 13:57:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 13:57:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-01-18 13:57:27,423 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-01-18 13:57:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 13:57:27,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 13:57:27,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 13:57:27,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 13:57:27,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 13:57:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 13:57:27,427 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 13:57:27,476 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 13:57:27,477 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 13:57:27,592 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 13:57:27,613 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 13:57:27,614 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-18 13:57:27,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:57:27 BoogieIcfgContainer [2022-01-18 13:57:27,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 13:57:27,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 13:57:27,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 13:57:27,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 13:57:27,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 01:57:27" (1/3) ... [2022-01-18 13:57:27,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0f86a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:57:27, skipping insertion in model container [2022-01-18 13:57:27,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:57:27" (2/3) ... [2022-01-18 13:57:27,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0f86a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:57:27, skipping insertion in model container [2022-01-18 13:57:27,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:57:27" (3/3) ... [2022-01-18 13:57:27,620 INFO L111 eAbstractionObserver]: Analyzing ICFG forkJoinInLoop.c [2022-01-18 13:57:27,622 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 13:57:27,623 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 13:57:27,623 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 13:57:27,623 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 13:57:27,656 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:57:27,656 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:57:27,656 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:57:27,656 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:57:27,657 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:57:27,657 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:57:27,657 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:57:27,657 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:57:27,657 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:57:27,657 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:57:27,659 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:57:27,659 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:57:27,659 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:57:27,659 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:57:27,660 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:57:27,662 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-01-18 13:57:27,710 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 13:57:27,724 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=FINITE_AUTOMATA, 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 [2022-01-18 13:57:27,725 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-18 13:57:27,746 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 53 transitions, 114 flow [2022-01-18 13:57:27,760 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 60 states, 59 states have (on average 1.3389830508474576) internal successors, (79), 59 states have internal predecessors, (79), 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) [2022-01-18 13:57:27,761 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 59 states have (on average 1.3389830508474576) internal successors, (79), 59 states have internal predecessors, (79), 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) [2022-01-18 13:57:27,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-18 13:57:27,765 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:57:27,765 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:57:27,765 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-01-18 13:57:27,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:57:27,768 INFO L85 PathProgramCache]: Analyzing trace with hash -687358722, now seen corresponding path program 1 times [2022-01-18 13:57:27,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:57:27,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393640633] [2022-01-18 13:57:27,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:57:27,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:57:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:57:27,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:57:27,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:57:27,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393640633] [2022-01-18 13:57:27,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393640633] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:57:27,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:57:27,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 13:57:27,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535089606] [2022-01-18 13:57:27,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:57:27,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 13:57:27,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:57:27,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 13:57:27,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 13:57:27,923 INFO L87 Difference]: Start difference. First operand has 60 states, 59 states have (on average 1.3389830508474576) internal successors, (79), 59 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 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) [2022-01-18 13:57:27,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:57:27,937 INFO L93 Difference]: Finished difference Result 60 states and 78 transitions. [2022-01-18 13:57:27,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 13:57:27,939 INFO L78 Accepts]: Start accepts. 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) Word has length 15 [2022-01-18 13:57:27,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:57:27,943 INFO L225 Difference]: With dead ends: 60 [2022-01-18 13:57:27,944 INFO L226 Difference]: Without dead ends: 60 [2022-01-18 13:57:27,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 13:57:27,953 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 13:57:27,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 13:57:27,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-01-18 13:57:27,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-01-18 13:57:27,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 59 states have internal predecessors, (78), 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) [2022-01-18 13:57:27,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 78 transitions. [2022-01-18 13:57:27,985 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 78 transitions. Word has length 15 [2022-01-18 13:57:27,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:57:27,986 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 78 transitions. [2022-01-18 13:57:27,986 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) [2022-01-18 13:57:27,986 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 78 transitions. [2022-01-18 13:57:27,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-18 13:57:27,986 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:57:27,987 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:57:27,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 13:57:27,987 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-01-18 13:57:27,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:57:27,988 INFO L85 PathProgramCache]: Analyzing trace with hash 873243086, now seen corresponding path program 1 times [2022-01-18 13:57:27,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:57:27,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808313289] [2022-01-18 13:57:27,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:57:27,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:57:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:57:28,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:57:28,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:57:28,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808313289] [2022-01-18 13:57:28,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808313289] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:57:28,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:57:28,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 13:57:28,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22013225] [2022-01-18 13:57:28,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:57:28,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 13:57:28,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:57:28,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 13:57:28,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 13:57:28,036 INFO L87 Difference]: Start difference. First operand 60 states and 78 transitions. Second operand 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) [2022-01-18 13:57:28,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:57:28,065 INFO L93 Difference]: Finished difference Result 66 states and 84 transitions. [2022-01-18 13:57:28,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-18 13:57:28,066 INFO L78 Accepts]: Start accepts. 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) Word has length 17 [2022-01-18 13:57:28,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:57:28,066 INFO L225 Difference]: With dead ends: 66 [2022-01-18 13:57:28,066 INFO L226 Difference]: Without dead ends: 66 [2022-01-18 13:57:28,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 13:57:28,068 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 6 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 13:57:28,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 100 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 13:57:28,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-01-18 13:57:28,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2022-01-18 13:57:28,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 61 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) [2022-01-18 13:57:28,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 80 transitions. [2022-01-18 13:57:28,073 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 80 transitions. Word has length 17 [2022-01-18 13:57:28,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:57:28,074 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 80 transitions. [2022-01-18 13:57:28,074 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) [2022-01-18 13:57:28,074 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 80 transitions. [2022-01-18 13:57:28,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-18 13:57:28,075 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:57:28,075 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:57:28,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 13:57:28,075 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-01-18 13:57:28,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:57:28,076 INFO L85 PathProgramCache]: Analyzing trace with hash 48740349, now seen corresponding path program 1 times [2022-01-18 13:57:28,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:57:28,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023511493] [2022-01-18 13:57:28,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:57:28,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:57:28,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:57:28,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:57:28,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:57:28,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023511493] [2022-01-18 13:57:28,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023511493] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 13:57:28,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337882050] [2022-01-18 13:57:28,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:57:28,251 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 13:57:28,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 13:57:28,252 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 13:57:28,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 13:57:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:57:28,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-18 13:57:28,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 13:57:28,353 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 [2022-01-18 13:57:28,366 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 13:57:28,367 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 [2022-01-18 13:57:28,422 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 [2022-01-18 13:57:28,507 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 [2022-01-18 13:57:28,527 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 [2022-01-18 13:57:28,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:57:28,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 13:57:28,622 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 [2022-01-18 13:57:28,661 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 [2022-01-18 13:57:28,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-01-18 13:57:28,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337882050] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 13:57:28,687 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 13:57:28,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 18 [2022-01-18 13:57:28,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726114427] [2022-01-18 13:57:28,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 13:57:28,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 13:57:28,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:57:28,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 13:57:28,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=222, Unknown=1, NotChecked=30, Total=306 [2022-01-18 13:57:28,692 INFO L87 Difference]: Start difference. First operand 62 states and 80 transitions. Second operand 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) [2022-01-18 13:57:28,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:57:28,952 INFO L93 Difference]: Finished difference Result 146 states and 200 transitions. [2022-01-18 13:57:28,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 13:57:28,953 INFO L78 Accepts]: Start accepts. 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) Word has length 43 [2022-01-18 13:57:28,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:57:28,954 INFO L225 Difference]: With dead ends: 146 [2022-01-18 13:57:28,954 INFO L226 Difference]: Without dead ends: 146 [2022-01-18 13:57:28,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=171, Invalid=534, Unknown=1, NotChecked=50, Total=756 [2022-01-18 13:57:28,955 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 279 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 13:57:28,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 275 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 128 Invalid, 0 Unknown, 39 Unchecked, 0.1s Time] [2022-01-18 13:57:28,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-01-18 13:57:28,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 106. [2022-01-18 13:57:28,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.3523809523809525) internal successors, (142), 105 states have internal predecessors, (142), 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) [2022-01-18 13:57:28,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 142 transitions. [2022-01-18 13:57:28,972 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 142 transitions. Word has length 43 [2022-01-18 13:57:28,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:57:28,972 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 142 transitions. [2022-01-18 13:57:28,972 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) [2022-01-18 13:57:28,972 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 142 transitions. [2022-01-18 13:57:28,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-18 13:57:28,973 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:57:28,973 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:57:29,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 13:57:29,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 13:57:29,183 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-01-18 13:57:29,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:57:29,184 INFO L85 PathProgramCache]: Analyzing trace with hash 592798060, now seen corresponding path program 2 times [2022-01-18 13:57:29,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:57:29,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657356443] [2022-01-18 13:57:29,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:57:29,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:57:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 13:57:29,217 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 13:57:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 13:57:29,278 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 13:57:29,278 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 13:57:29,279 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-01-18 13:57:29,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 13:57:29,282 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-01-18 13:57:29,282 INFO L308 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was UNSAFE (1/2) [2022-01-18 13:57:29,284 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 13:57:29,284 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 13:57:29,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 01:57:29 BasicIcfg [2022-01-18 13:57:29,321 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 13:57:29,321 INFO L158 Benchmark]: Toolchain (without parser) took 2182.48ms. Allocated memory was 381.7MB in the beginning and 499.1MB in the end (delta: 117.4MB). Free memory was 324.3MB in the beginning and 439.6MB in the end (delta: -115.4MB). Peak memory consumption was 333.1kB. Max. memory is 16.0GB. [2022-01-18 13:57:29,321 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 381.7MB. Free memory is still 342.1MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 13:57:29,322 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.08ms. Allocated memory was 381.7MB in the beginning and 499.1MB in the end (delta: 117.4MB). Free memory was 324.1MB in the beginning and 466.1MB in the end (delta: -142.0MB). Peak memory consumption was 9.0MB. Max. memory is 16.0GB. [2022-01-18 13:57:29,322 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.84ms. Allocated memory is still 499.1MB. Free memory was 465.7MB in the beginning and 464.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 13:57:29,322 INFO L158 Benchmark]: Boogie Preprocessor took 19.06ms. Allocated memory is still 499.1MB. Free memory was 464.6MB in the beginning and 463.6MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 13:57:29,322 INFO L158 Benchmark]: RCFGBuilder took 244.60ms. Allocated memory is still 499.1MB. Free memory was 463.6MB in the beginning and 452.1MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2022-01-18 13:57:29,323 INFO L158 Benchmark]: TraceAbstraction took 1704.80ms. Allocated memory is still 499.1MB. Free memory was 451.6MB in the beginning and 439.6MB in the end (delta: 11.9MB). Peak memory consumption was 13.9MB. Max. memory is 16.0GB. [2022-01-18 13:57:29,324 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 381.7MB. Free memory is still 342.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 185.08ms. Allocated memory was 381.7MB in the beginning and 499.1MB in the end (delta: 117.4MB). Free memory was 324.1MB in the beginning and 466.1MB in the end (delta: -142.0MB). Peak memory consumption was 9.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 24.84ms. Allocated memory is still 499.1MB. Free memory was 465.7MB in the beginning and 464.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 19.06ms. Allocated memory is still 499.1MB. Free memory was 464.6MB in the beginning and 463.6MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 244.60ms. Allocated memory is still 499.1MB. Free memory was 463.6MB in the beginning and 452.1MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 1704.80ms. Allocated memory is still 499.1MB. Free memory was 451.6MB in the beginning and 439.6MB in the end (delta: 11.9MB). Peak memory consumption was 13.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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}] [L15] 1 int y = 4; VAL [i={5:0}, i={5:0}, y=4] [L25] 0 \read(x) VAL [i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] [L26] 0 \read(thread_id) VAL [\read(thread_id)=-2, i={5:0}, i={5:0}, thread_id={6:0}, x={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}] [L15] 1 int y = 4; VAL [i={5:0}, i={5:0}, y=4] [L25] 0 \read(x) VAL [i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] [L26] 0 \read(thread_id) VAL [\read(thread_id)=-1, i={5:0}, i={5:0}, thread_id={6:0}, x={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] - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 57 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 285 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 285 mSDsluCounter, 415 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 39 IncrementalHoareTripleChecker+Unchecked, 320 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 155 IncrementalHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 106 mSDtfsCounter, 155 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=3, 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 44 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 156 ConstructedInterpolants, 6 QuantifiedInterpolants, 814 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! [2022-01-18 13:57:29,345 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...