/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf -i ../sv-benchmarks/c/weaver/unroll-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-06 20:56:55,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-06 20:56:55,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-06 20:56:55,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-06 20:56:55,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-06 20:56:55,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-06 20:56:55,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-06 20:56:55,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-06 20:56:55,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-06 20:56:55,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-06 20:56:55,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-06 20:56:55,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-06 20:56:55,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-06 20:56:55,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-06 20:56:55,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-06 20:56:55,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-06 20:56:55,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-06 20:56:55,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-06 20:56:55,377 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-06 20:56:55,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-06 20:56:55,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-06 20:56:55,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-06 20:56:55,382 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-06 20:56:55,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-06 20:56:55,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-06 20:56:55,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-06 20:56:55,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-06 20:56:55,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-06 20:56:55,392 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-06 20:56:55,437 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-06 20:56:55,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-06 20:56:55,438 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-06 20:56:55,438 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-06 20:56:55,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-06 20:56:55,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-06 20:56:55,442 INFO L138 SettingsManager]: * Use SBE=true [2021-10-06 20:56:55,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-06 20:56:55,443 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-06 20:56:55,443 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-06 20:56:55,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-06 20:56:55,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-06 20:56:55,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-06 20:56:55,445 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-06 20:56:55,445 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-06 20:56:55,445 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-06 20:56:55,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-06 20:56:55,446 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-06 20:56:55,446 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-06 20:56:55,446 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-06 20:56:55,446 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-06 20:56:55,446 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-06 20:56:55,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-06 20:56:55,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-06 20:56:55,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-06 20:56:55,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 20:56:55,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-06 20:56:55,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-06 20:56:55,448 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-06 20:56:55,448 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-06 20:56:55,448 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-06 20:56:55,448 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-06 20:56:55,449 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-06 20:56:55,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-06 20:56:55,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-06 20:56:55,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-06 20:56:55,905 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-06 20:56:55,906 INFO L275 PluginConnector]: CDTParser initialized [2021-10-06 20:56:55,907 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/unroll-3.wvr.c [2021-10-06 20:56:55,995 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49954db03/d8396b6bf05047d196fa4273174b41de/FLAGaf4ec901d [2021-10-06 20:56:56,662 INFO L306 CDTParser]: Found 1 translation units. [2021-10-06 20:56:56,663 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/unroll-3.wvr.c [2021-10-06 20:56:56,672 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49954db03/d8396b6bf05047d196fa4273174b41de/FLAGaf4ec901d [2021-10-06 20:56:57,009 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49954db03/d8396b6bf05047d196fa4273174b41de [2021-10-06 20:56:57,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-06 20:56:57,022 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-06 20:56:57,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-06 20:56:57,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-06 20:56:57,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-06 20:56:57,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 08:56:57" (1/1) ... [2021-10-06 20:56:57,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a224e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:56:57, skipping insertion in model container [2021-10-06 20:56:57,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 08:56:57" (1/1) ... [2021-10-06 20:56:57,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-06 20:56:57,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-06 20:56:57,283 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/unroll-3.wvr.c[2290,2303] [2021-10-06 20:56:57,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 20:56:57,304 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-06 20:56:57,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-06 20:56:57,326 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/unroll-3.wvr.c[2290,2303] [2021-10-06 20:56:57,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 20:56:57,337 INFO L203 MainTranslator]: Completed pre-run [2021-10-06 20:56:57,363 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/unroll-3.wvr.c[2290,2303] [2021-10-06 20:56:57,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 20:56:57,389 INFO L208 MainTranslator]: Completed translation [2021-10-06 20:56:57,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:56:57 WrapperNode [2021-10-06 20:56:57,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-06 20:56:57,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-06 20:56:57,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-06 20:56:57,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-06 20:56:57,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:56:57" (1/1) ... [2021-10-06 20:56:57,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:56:57" (1/1) ... [2021-10-06 20:56:57,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-06 20:56:57,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-06 20:56:57,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-06 20:56:57,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-06 20:56:57,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:56:57" (1/1) ... [2021-10-06 20:56:57,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:56:57" (1/1) ... [2021-10-06 20:56:57,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:56:57" (1/1) ... [2021-10-06 20:56:57,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:56:57" (1/1) ... [2021-10-06 20:56:57,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:56:57" (1/1) ... [2021-10-06 20:56:57,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:56:57" (1/1) ... [2021-10-06 20:56:57,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:56:57" (1/1) ... [2021-10-06 20:56:57,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-06 20:56:57,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-06 20:56:57,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-06 20:56:57,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-06 20:56:57,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:56:57" (1/1) ... [2021-10-06 20:56:57,492 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 20:56:57,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-06 20:56:57,523 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-06 20:56:57,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-06 20:56:57,577 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-06 20:56:57,578 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-06 20:56:57,578 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-06 20:56:57,578 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-06 20:56:57,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-06 20:56:57,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-06 20:56:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-06 20:56:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-06 20:56:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-06 20:56:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-06 20:56:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-06 20:56:57,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-06 20:56:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-06 20:56:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-06 20:56:57,581 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-06 20:56:59,046 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-06 20:56:59,047 INFO L299 CfgBuilder]: Removed 21 assume(true) statements. [2021-10-06 20:56:59,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 08:56:59 BoogieIcfgContainer [2021-10-06 20:56:59,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-06 20:56:59,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-06 20:56:59,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-06 20:56:59,055 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-06 20:56:59,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 08:56:57" (1/3) ... [2021-10-06 20:56:59,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15d2368b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 08:56:59, skipping insertion in model container [2021-10-06 20:56:59,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:56:57" (2/3) ... [2021-10-06 20:56:59,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15d2368b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 08:56:59, skipping insertion in model container [2021-10-06 20:56:59,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 08:56:59" (3/3) ... [2021-10-06 20:56:59,059 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-3.wvr.c [2021-10-06 20:56:59,065 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-06 20:56:59,065 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2021-10-06 20:56:59,065 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-06 20:56:59,095 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,095 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,096 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,096 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,096 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,096 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,097 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,097 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,097 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,097 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,097 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,098 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,098 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,099 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,099 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,099 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,099 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,100 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,100 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,100 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,100 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,100 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,100 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,101 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,101 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,101 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,101 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,101 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,102 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,102 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,102 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,102 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,103 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,103 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,103 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,103 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,103 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,103 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,104 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,104 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,104 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,104 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,104 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,104 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,105 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,105 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,105 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,105 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,105 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,106 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,106 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,106 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,106 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,106 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,107 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,107 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,107 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,107 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,108 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,108 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,108 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,108 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,108 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,108 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,109 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,109 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,109 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,109 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,109 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,110 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,110 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,110 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,114 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,114 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,114 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,114 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,115 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,115 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,115 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,115 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,115 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,116 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,118 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,118 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,118 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,119 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,119 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,119 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:56:59,124 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-06 20:56:59,173 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-06 20:56:59,180 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=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 [2021-10-06 20:56:59,181 INFO L340 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2021-10-06 20:56:59,196 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-06 20:56:59,208 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 114 transitions, 244 flow [2021-10-06 20:56:59,211 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 114 transitions, 244 flow [2021-10-06 20:56:59,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 114 transitions, 244 flow [2021-10-06 20:56:59,261 INFO L129 PetriNetUnfolder]: 8/112 cut-off events. [2021-10-06 20:56:59,261 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-06 20:56:59,266 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 112 events. 8/112 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 121 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2021-10-06 20:56:59,268 INFO L116 LiptonReduction]: Number of co-enabled transitions 640 [2021-10-06 20:57:15,919 INFO L131 LiptonReduction]: Checked pairs total: 925 [2021-10-06 20:57:15,919 INFO L133 LiptonReduction]: Total number of compositions: 117 [2021-10-06 20:57:15,929 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 37 transitions, 90 flow [2021-10-06 20:57:15,950 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 186 states, 98 states have (on average 4.683673469387755) internal successors, (459), 185 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 20:57:15,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 98 states have (on average 4.683673469387755) internal successors, (459), 185 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 20:57:15,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-06 20:57:15,958 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 20:57:15,959 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-06 20:57:15,959 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 26 more)] === [2021-10-06 20:57:15,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 20:57:15,965 INFO L82 PathProgramCache]: Analyzing trace with hash 17379, now seen corresponding path program 1 times [2021-10-06 20:57:15,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 20:57:15,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861943977] [2021-10-06 20:57:15,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 20:57:15,980 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 20:57:15,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 20:57:15,986 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-06 20:57:16,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-06 20:57:16,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 20:57:16,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-06 20:57:16,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 20:57:16,386 INFO L354 Elim1Store]: treesize reduction 232, result has 18.9 percent of original size [2021-10-06 20:57:16,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 case distinctions, treesize of input 276 treesize of output 297 [2021-10-06 20:57:17,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 20:57:17,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 20:57:17,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 20:57:17,976 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 20:57:17,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861943977] [2021-10-06 20:57:17,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861943977] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 20:57:17,977 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 20:57:17,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-06 20:57:17,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486467628] [2021-10-06 20:57:17,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-06 20:57:17,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 20:57:17,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-06 20:57:17,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 20:57:18,002 INFO L87 Difference]: Start difference. First operand has 186 states, 98 states have (on average 4.683673469387755) internal successors, (459), 185 states have internal predecessors, (459), 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 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 20:57:18,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 20:57:18,223 INFO L93 Difference]: Finished difference Result 120 states and 281 transitions. [2021-10-06 20:57:18,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 20:57:18,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 2 [2021-10-06 20:57:18,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 20:57:18,236 INFO L225 Difference]: With dead ends: 120 [2021-10-06 20:57:18,237 INFO L226 Difference]: Without dead ends: 120 [2021-10-06 20:57:18,238 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 20:57:18,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-10-06 20:57:18,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-10-06 20:57:18,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 71 states have (on average 3.9577464788732395) internal successors, (281), 119 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 20:57:18,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 281 transitions. [2021-10-06 20:57:18,286 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 281 transitions. Word has length 2 [2021-10-06 20:57:18,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 20:57:18,287 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 281 transitions. [2021-10-06 20:57:18,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 20:57:18,287 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 281 transitions. [2021-10-06 20:57:18,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-06 20:57:18,287 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 20:57:18,288 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-06 20:57:18,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-06 20:57:18,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-06 20:57:18,491 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 26 more)] === [2021-10-06 20:57:18,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 20:57:18,493 INFO L82 PathProgramCache]: Analyzing trace with hash 17381, now seen corresponding path program 1 times [2021-10-06 20:57:18,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 20:57:18,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774621594] [2021-10-06 20:57:18,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 20:57:18,495 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 20:57:18,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 20:57:18,496 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-06 20:57:18,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-06 20:57:18,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 20:57:18,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-06 20:57:18,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 20:57:18,765 INFO L354 Elim1Store]: treesize reduction 151, result has 21.8 percent of original size [2021-10-06 20:57:18,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 75 [2021-10-06 20:57:18,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 97 treesize of output 95 [2021-10-06 20:57:19,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 20:57:19,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 20:57:19,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 20:57:19,224 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 20:57:19,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774621594] [2021-10-06 20:57:19,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774621594] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 20:57:19,225 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 20:57:19,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-06 20:57:19,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343114308] [2021-10-06 20:57:19,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-06 20:57:19,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 20:57:19,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-06 20:57:19,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 20:57:19,228 INFO L87 Difference]: Start difference. First operand 120 states and 281 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 20:57:19,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 20:57:19,441 INFO L93 Difference]: Finished difference Result 95 states and 208 transitions. [2021-10-06 20:57:19,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 20:57:19,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 2 [2021-10-06 20:57:19,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 20:57:19,444 INFO L225 Difference]: With dead ends: 95 [2021-10-06 20:57:19,444 INFO L226 Difference]: Without dead ends: 95 [2021-10-06 20:57:19,445 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 20:57:19,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-06 20:57:19,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-10-06 20:57:19,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 62 states have (on average 3.3548387096774195) internal successors, (208), 94 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 20:57:19,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 208 transitions. [2021-10-06 20:57:19,456 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 208 transitions. Word has length 2 [2021-10-06 20:57:19,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 20:57:19,457 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 208 transitions. [2021-10-06 20:57:19,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 20:57:19,459 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 208 transitions. [2021-10-06 20:57:19,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-06 20:57:19,460 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 20:57:19,460 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-06 20:57:19,470 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-06 20:57:19,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-06 20:57:19,665 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 26 more)] === [2021-10-06 20:57:19,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 20:57:19,666 INFO L82 PathProgramCache]: Analyzing trace with hash 17341, now seen corresponding path program 1 times [2021-10-06 20:57:19,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 20:57:19,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [827381115] [2021-10-06 20:57:19,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 20:57:19,668 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 20:57:19,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 20:57:19,669 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-06 20:57:19,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-06 20:57:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-06 20:57:19,724 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-06 20:57:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-06 20:57:19,781 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-06 20:57:19,782 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-06 20:57:19,783 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-06 20:57:19,785 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0REQUIRES_VIOLATION [2021-10-06 20:57:19,785 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1REQUIRES_VIOLATION [2021-10-06 20:57:19,785 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATION [2021-10-06 20:57:19,786 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATION [2021-10-06 20:57:19,786 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2REQUIRES_VIOLATION [2021-10-06 20:57:19,786 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3REQUIRES_VIOLATION [2021-10-06 20:57:19,786 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4REQUIRES_VIOLATION [2021-10-06 20:57:19,787 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5REQUIRES_VIOLATION [2021-10-06 20:57:19,787 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-06 20:57:19,787 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-06 20:57:19,787 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-06 20:57:19,788 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-06 20:57:19,788 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-06 20:57:19,788 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-06 20:57:19,788 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-06 20:57:19,788 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-06 20:57:19,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-06 20:57:19,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK [2021-10-06 20:57:19,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK [2021-10-06 20:57:19,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-06 20:57:19,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-06 20:57:19,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0REQUIRES_VIOLATION [2021-10-06 20:57:19,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1REQUIRES_VIOLATION [2021-10-06 20:57:19,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATION [2021-10-06 20:57:19,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATION [2021-10-06 20:57:19,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2REQUIRES_VIOLATION [2021-10-06 20:57:19,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3REQUIRES_VIOLATION [2021-10-06 20:57:19,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4REQUIRES_VIOLATION [2021-10-06 20:57:19,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5REQUIRES_VIOLATION [2021-10-06 20:57:19,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-06 20:57:20,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-06 20:57:20,009 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-06 20:57:20,009 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-06 20:57:20,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 08:57:20 BasicIcfg [2021-10-06 20:57:20,027 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-06 20:57:20,028 INFO L168 Benchmark]: Toolchain (without parser) took 23012.94 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 126.1 MB in the beginning and 138.2 MB in the end (delta: -12.1 MB). Peak memory consumption was 18.5 MB. Max. memory is 8.0 GB. [2021-10-06 20:57:20,029 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory was 130.6 MB in the beginning and 130.5 MB in the end (delta: 101.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-06 20:57:20,030 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.04 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 113.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-06 20:57:20,031 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.96 ms. Allocated memory is still 151.0 MB. Free memory was 113.1 MB in the beginning and 111.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-06 20:57:20,032 INFO L168 Benchmark]: Boogie Preprocessor took 39.20 ms. Allocated memory is still 151.0 MB. Free memory was 111.3 MB in the beginning and 109.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-06 20:57:20,032 INFO L168 Benchmark]: RCFGBuilder took 1567.71 ms. Allocated memory is still 151.0 MB. Free memory was 109.6 MB in the beginning and 110.4 MB in the end (delta: -825.4 kB). Peak memory consumption was 20.3 MB. Max. memory is 8.0 GB. [2021-10-06 20:57:20,036 INFO L168 Benchmark]: TraceAbstraction took 20975.10 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 110.3 MB in the beginning and 138.2 MB in the end (delta: -28.0 MB). Peak memory consumption was 2.4 MB. Max. memory is 8.0 GB. [2021-10-06 20:57:20,041 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory was 130.6 MB in the beginning and 130.5 MB in the end (delta: 101.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 364.04 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 113.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 49.96 ms. Allocated memory is still 151.0 MB. Free memory was 113.1 MB in the beginning and 111.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.20 ms. Allocated memory is still 151.0 MB. Free memory was 111.3 MB in the beginning and 109.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1567.71 ms. Allocated memory is still 151.0 MB. Free memory was 109.6 MB in the beginning and 110.4 MB in the end (delta: -825.4 kB). Peak memory consumption was 20.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 20975.10 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 110.3 MB in the beginning and 138.2 MB in the end (delta: -28.0 MB). Peak memory consumption was 2.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16708.4ms, 113 PlacesBefore, 41 PlacesAfterwards, 114 TransitionsBefore, 37 TransitionsAfterwards, 640 CoEnabledTransitionPairs, 6 FixpointIterations, 73 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 4 ConcurrentYvCompositions, 5 ChoiceCompositions, 117 TotalNumberOfCompositions, 925 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 923, positive: 911, positive conditional: 0, positive unconditional: 911, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 314, positive: 311, positive conditional: 0, positive unconditional: 311, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 314, positive: 311, positive conditional: 0, positive unconditional: 311, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 219, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 219, negative conditional: 0, negative unconditional: 219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 923, positive: 600, positive conditional: 0, positive unconditional: 600, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 314, unknown conditional: 0, unknown unconditional: 314] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 52, Positive conditional cache size: 0, Positive unconditional cache size: 52, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 94]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L37] int *f; [L38] int i1, x1, i2, x2, n, size; [L72] pthread_t t1, t2; [L75] n = __VERIFIER_nondet_int() [L76] size = __VERIFIER_nondet_int() [L34] COND FALSE !(!cond) [L92] int* arr = (int*)malloc(sizeof(int) * size); [L93] int i = 0; VAL [f={0:0}, i1=0, i2=0, size=1073741824, x1=0, x2=0] [L93] COND TRUE i < size [L94] arr[i] = __VERIFIER_nondet_int() - UnprovableResult [Line: 46]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 94]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 80]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 80]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 82]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 82]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 83]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 83]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 86]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 81]: 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. - UnprovableResult [Line: 80]: 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 5 procedures, 127 locations, 30 error locations. Started 1 CEGAR loops. OverallTime: 20834.6ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 8.7ms, AutomataDifference: 470.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16769.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 26 SDtfs, 82 SDslu, 0 SDs, 0 SdLazy, 30 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 362.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 64.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 44.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 29.4ms SsaConstructionTime, 95.5ms SatisfiabilityAnalysisTime, 2540.9ms InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 4 ConstructedInterpolants, 2 QuantifiedInterpolants, 122 SizeOfPredicates, 10 NumberOfNonLiveVariables, 90 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-06 20:57:20,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...