/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-POR-NewStatesSleep-NoLbe.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-44898dd [2022-02-09 08:18:34,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 08:18:34,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 08:18:34,268 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-09 08:18:34,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-09 08:18:34,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-09 08:18:34,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-09 08:18:34,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-09 08:18:34,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-09 08:18:34,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-09 08:18:34,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-09 08:18:34,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-09 08:18:34,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-09 08:18:34,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-09 08:18:34,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-09 08:18:34,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-09 08:18:34,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-09 08:18:34,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-09 08:18:34,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-09 08:18:34,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-09 08:18:34,312 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf [2022-02-09 08:18:34,339 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 08:18:34,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 08:18:34,339 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 08:18:34,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 08:18:34,340 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 08:18:34,340 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 08:18:34,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 08:18:34,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 08:18:34,340 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 08:18:34,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 08:18:34,341 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 08:18:34,341 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 08:18:34,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 08:18:34,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 08:18:34,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 08:18:34,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 08:18:34,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 08:18:34,341 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 08:18:34,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 08:18:34,341 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 08:18:34,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 08:18:34,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 08:18:34,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 08:18:34,342 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 08:18:34,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 08:18:34,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 08:18:34,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 08:18:34,342 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-09 08:18:34,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 08:18:34,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 08:18:34,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 08:18:34,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 08:18:34,342 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 08:18:34,343 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-09 08:18:34,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 08:18:34,343 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-02-09 08:18:34,343 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 08:18:34,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 08:18:34,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 08:18:34,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 08:18:34,534 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-09 08:18:34,536 INFO L275 PluginConnector]: CDTParser initialized [2022-02-09 08:18:34,537 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/forkJoinInLoop.c [2022-02-09 08:18:34,596 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4dab34e2/9f5d1a62c59d41f4ab4f795c53338076/FLAGbf665e16c [2022-02-09 08:18:34,961 INFO L306 CDTParser]: Found 1 translation units. [2022-02-09 08:18:34,961 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/forkJoinInLoop.c [2022-02-09 08:18:34,961 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-09 08:18:34,962 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-09 08:18:34,983 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4dab34e2/9f5d1a62c59d41f4ab4f795c53338076/FLAGbf665e16c [2022-02-09 08:18:34,992 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4dab34e2/9f5d1a62c59d41f4ab4f795c53338076 [2022-02-09 08:18:34,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 08:18:34,994 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-09 08:18:34,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-09 08:18:34,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-09 08:18:34,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-09 08:18:34,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 08:18:34" (1/1) ... [2022-02-09 08:18:34,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@262db537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:18:34, skipping insertion in model container [2022-02-09 08:18:34,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 08:18:34" (1/1) ... [2022-02-09 08:18:35,003 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-09 08:18:35,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-09 08:18:35,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 08:18:35,163 INFO L203 MainTranslator]: Completed pre-run [2022-02-09 08:18:35,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 08:18:35,178 INFO L208 MainTranslator]: Completed translation [2022-02-09 08:18:35,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:18:35 WrapperNode [2022-02-09 08:18:35,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-09 08:18:35,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 08:18:35,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 08:18:35,179 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 08:18:35,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:18:35" (1/1) ... [2022-02-09 08:18:35,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:18:35" (1/1) ... [2022-02-09 08:18:35,199 INFO L137 Inliner]: procedures = 10, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48 [2022-02-09 08:18:35,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 08:18:35,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 08:18:35,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 08:18:35,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 08:18:35,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:18:35" (1/1) ... [2022-02-09 08:18:35,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:18:35" (1/1) ... [2022-02-09 08:18:35,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:18:35" (1/1) ... [2022-02-09 08:18:35,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:18:35" (1/1) ... [2022-02-09 08:18:35,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:18:35" (1/1) ... [2022-02-09 08:18:35,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:18:35" (1/1) ... [2022-02-09 08:18:35,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:18:35" (1/1) ... [2022-02-09 08:18:35,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 08:18:35,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 08:18:35,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 08:18:35,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 08:18:35,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:18:35" (1/1) ... [2022-02-09 08:18:35,223 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 08:18:35,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 08:18:35,240 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) [2022-02-09 08:18:35,263 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 [2022-02-09 08:18:35,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-09 08:18:35,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-09 08:18:35,272 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-02-09 08:18:35,272 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-02-09 08:18:35,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 08:18:35,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 08:18:35,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-09 08:18:35,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-09 08:18:35,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-09 08:18:35,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-09 08:18:35,273 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 08:18:35,333 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 08:18:35,334 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 08:18:35,415 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 08:18:35,419 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 08:18:35,419 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-09 08:18:35,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 08:18:35 BoogieIcfgContainer [2022-02-09 08:18:35,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 08:18:35,421 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 08:18:35,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 08:18:35,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 08:18:35,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.02 08:18:34" (1/3) ... [2022-02-09 08:18:35,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9335d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 08:18:35, skipping insertion in model container [2022-02-09 08:18:35,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 08:18:35" (2/3) ... [2022-02-09 08:18:35,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9335d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 08:18:35, skipping insertion in model container [2022-02-09 08:18:35,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 08:18:35" (3/3) ... [2022-02-09 08:18:35,426 INFO L111 eAbstractionObserver]: Analyzing ICFG forkJoinInLoop.c [2022-02-09 08:18:35,429 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 08:18:35,429 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 08:18:35,429 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 08:18:35,429 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 08:18:35,464 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:18:35,464 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:18:35,464 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:18:35,464 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:18:35,465 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:18:35,465 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:18:35,465 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:18:35,465 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:18:35,465 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:18:35,465 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:18:35,467 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:18:35,468 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:18:35,472 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:18:35,487 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:18:35,487 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 08:18:35,491 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-09 08:18:35,521 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 08:18:35,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 08:18:35,523 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) [2022-02-09 08:18:35,524 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 [2022-02-09 08:18:35,547 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 08:18:35,552 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 [2022-02-09 08:18:35,552 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-09 08:18:35,586 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-09 08:18:35,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 08:18:35,590 INFO L85 PathProgramCache]: Analyzing trace with hash -687358722, now seen corresponding path program 1 times [2022-02-09 08:18:35,603 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 08:18:35,604 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483289459] [2022-02-09 08:18:35,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 08:18:35,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 08:18:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 08:18:35,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 08:18:35,753 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 08:18:35,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483289459] [2022-02-09 08:18:35,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483289459] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 08:18:35,754 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 08:18:35,754 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 08:18:35,755 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813344845] [2022-02-09 08:18:35,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 08:18:35,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 08:18:35,758 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 08:18:35,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 08:18:35,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 08:18:35,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 08:18:35,783 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 08:18:35,784 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) [2022-02-09 08:18:35,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 08:18:35,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 08:18:35,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 08:18:35,793 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-09 08:18:35,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 08:18:35,797 INFO L85 PathProgramCache]: Analyzing trace with hash 873243086, now seen corresponding path program 1 times [2022-02-09 08:18:35,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 08:18:35,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910932706] [2022-02-09 08:18:35,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 08:18:35,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 08:18:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 08:18:35,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 08:18:35,844 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 08:18:35,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910932706] [2022-02-09 08:18:35,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910932706] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 08:18:35,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 08:18:35,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-09 08:18:35,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719830385] [2022-02-09 08:18:35,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 08:18:35,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-09 08:18:35,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 08:18:35,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-09 08:18:35,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-09 08:18:35,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 08:18:35,846 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 08:18:35,846 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) [2022-02-09 08:18:35,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 08:18:35,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 08:18:35,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 08:18:35,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 08:18:35,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 08:18:35,909 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-09 08:18:35,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 08:18:35,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1896857757, now seen corresponding path program 1 times [2022-02-09 08:18:35,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 08:18:35,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342874988] [2022-02-09 08:18:35,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 08:18:35,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 08:18:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 08:18:36,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 08:18:36,066 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 08:18:36,066 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342874988] [2022-02-09 08:18:36,066 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342874988] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 08:18:36,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105224899] [2022-02-09 08:18:36,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 08:18:36,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 08:18:36,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 08:18:36,068 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) [2022-02-09 08:18:36,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-09 08:18:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 08:18:36,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 14 conjunts are in the unsatisfiable core [2022-02-09 08:18:36,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 08:18:36,167 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 [2022-02-09 08:18:36,197 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-09 08:18:36,198 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 [2022-02-09 08:18:36,291 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 [2022-02-09 08:18:36,426 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 [2022-02-09 08:18:36,455 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 [2022-02-09 08:18:36,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 08:18:36,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 08:18:36,566 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 [2022-02-09 08:18:36,619 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 [2022-02-09 08:18:36,659 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-02-09 08:18:36,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105224899] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 08:18:36,659 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 08:18:36,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 18 [2022-02-09 08:18:36,660 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404981114] [2022-02-09 08:18:36,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 08:18:36,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-09 08:18:36,660 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 08:18:36,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-09 08:18:36,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=222, Unknown=1, NotChecked=30, Total=306 [2022-02-09 08:18:36,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 08:18:36,661 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 08:18:36,662 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) [2022-02-09 08:18:36,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 08:18:36,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 08:18:36,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 08:18:36,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 08:18:36,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 08:18:36,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-09 08:18:36,937 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-09 08:18:37,131 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 [2022-02-09 08:18:37,132 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-09 08:18:37,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 08:18:37,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1468554424, now seen corresponding path program 2 times [2022-02-09 08:18:37,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 08:18:37,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757295331] [2022-02-09 08:18:37,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 08:18:37,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 08:18:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 08:18:37,180 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-09 08:18:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 08:18:37,248 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-09 08:18:37,248 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-09 08:18:37,249 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-02-09 08:18:37,250 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-09 08:18:37,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-09 08:18:37,255 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-02-09 08:18:37,259 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-09 08:18:37,259 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-09 08:18:37,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 08:18:37 BasicIcfg [2022-02-09 08:18:37,296 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-09 08:18:37,296 INFO L158 Benchmark]: Toolchain (without parser) took 2301.65ms. Allocated memory was 179.3MB in the beginning and 216.0MB in the end (delta: 36.7MB). Free memory was 126.2MB in the beginning and 173.4MB in the end (delta: -47.2MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 08:18:37,296 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 179.3MB. Free memory is still 144.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 08:18:37,297 INFO L158 Benchmark]: CACSL2BoogieTranslator took 183.49ms. Allocated memory is still 179.3MB. Free memory was 126.1MB in the beginning and 153.7MB in the end (delta: -27.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-09 08:18:37,297 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.51ms. Allocated memory is still 179.3MB. Free memory was 153.7MB in the beginning and 152.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-09 08:18:37,297 INFO L158 Benchmark]: Boogie Preprocessor took 12.42ms. Allocated memory is still 179.3MB. Free memory was 152.1MB in the beginning and 151.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 08:18:37,298 INFO L158 Benchmark]: RCFGBuilder took 207.22ms. Allocated memory is still 179.3MB. Free memory was 151.1MB in the beginning and 140.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-09 08:18:37,298 INFO L158 Benchmark]: TraceAbstraction took 1874.11ms. Allocated memory was 179.3MB in the beginning and 216.0MB in the end (delta: 36.7MB). Free memory was 140.1MB in the beginning and 173.4MB in the end (delta: -33.3MB). Peak memory consumption was 4.4MB. Max. memory is 8.0GB. [2022-02-09 08:18:37,300 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 179.3MB. Free memory is still 144.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 183.49ms. Allocated memory is still 179.3MB. Free memory was 126.1MB in the beginning and 153.7MB in the end (delta: -27.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.51ms. Allocated memory is still 179.3MB. Free memory was 153.7MB in the beginning and 152.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.42ms. Allocated memory is still 179.3MB. Free memory was 152.1MB in the beginning and 151.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 207.22ms. Allocated memory is still 179.3MB. Free memory was 151.1MB in the beginning and 140.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1874.11ms. Allocated memory was 179.3MB in the beginning and 216.0MB in the end (delta: 36.7MB). Free memory was 140.1MB in the beginning and 173.4MB in the end (delta: -33.3MB). Peak memory consumption was 4.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 31, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 18, 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: 18, positive: 18, positive conditional: 18, 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: 18, positive: 18, positive conditional: 12, positive unconditional: 6, 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: 18, positive: 18, positive conditional: 4, positive unconditional: 14, 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: 18, positive: 18, positive conditional: 4, positive unconditional: 14, 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: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 18, positive: 12, positive conditional: 4, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 8, Maximal queried relation: 0, Independence queries for same thread: 13 - 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: 1.7s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.4s, 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, 0.8s 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! [2022-02-09 08:18:37,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-02-09 08:18:37,540 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...