./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c4488e-a8c1-41a3-8afb-5a072f70d358/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c4488e-a8c1-41a3-8afb-5a072f70d358/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c4488e-a8c1-41a3-8afb-5a072f70d358/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c4488e-a8c1-41a3-8afb-5a072f70d358/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c4488e-a8c1-41a3-8afb-5a072f70d358/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c4488e-a8c1-41a3-8afb-5a072f70d358/bin/uautomizer-IVEQpCNsaX --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d62eb188ec8009366dfdca221ff91e65711c28198c7f8ea6438b1bcf863cd3f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:38:07,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:38:07,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:38:07,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:38:07,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:38:07,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:38:07,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:38:07,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:38:07,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:38:07,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:38:07,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:38:07,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:38:07,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:38:07,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:38:07,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:38:07,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:38:07,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:38:07,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:38:07,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:38:07,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:38:07,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:38:07,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:38:07,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:38:07,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:38:07,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:38:07,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:38:07,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:38:07,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:38:07,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:38:07,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:38:07,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:38:07,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:38:07,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:38:07,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:38:07,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:38:07,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:38:07,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:38:07,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:38:07,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:38:07,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:38:07,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:38:07,412 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c4488e-a8c1-41a3-8afb-5a072f70d358/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 09:38:07,467 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:38:07,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:38:07,468 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:38:07,468 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:38:07,479 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:38:07,479 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:38:07,479 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:38:07,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:38:07,480 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:38:07,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:38:07,482 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:38:07,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:38:07,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 09:38:07,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 09:38:07,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 09:38:07,483 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:38:07,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:38:07,484 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:38:07,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 09:38:07,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:38:07,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:38:07,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 09:38:07,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:38:07,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:38:07,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 09:38:07,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 09:38:07,486 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:38:07,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 09:38:07,487 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 09:38:07,487 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 09:38:07,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 09:38:07,488 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:38:07,488 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c4488e-a8c1-41a3-8afb-5a072f70d358/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c4488e-a8c1-41a3-8afb-5a072f70d358/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d62eb188ec8009366dfdca221ff91e65711c28198c7f8ea6438b1bcf863cd3f [2021-11-09 09:38:07,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:38:07,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:38:07,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:38:07,854 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:38:07,855 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:38:07,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c4488e-a8c1-41a3-8afb-5a072f70d358/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c [2021-11-09 09:38:07,944 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c4488e-a8c1-41a3-8afb-5a072f70d358/bin/uautomizer-IVEQpCNsaX/data/16cc1037c/0dbebcddb9c24e7a948700d3bc3c9eb1/FLAGac8934529 [2021-11-09 09:38:09,154 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:38:09,155 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c4488e-a8c1-41a3-8afb-5a072f70d358/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c [2021-11-09 09:38:09,222 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c4488e-a8c1-41a3-8afb-5a072f70d358/bin/uautomizer-IVEQpCNsaX/data/16cc1037c/0dbebcddb9c24e7a948700d3bc3c9eb1/FLAGac8934529 [2021-11-09 09:38:09,342 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c4488e-a8c1-41a3-8afb-5a072f70d358/bin/uautomizer-IVEQpCNsaX/data/16cc1037c/0dbebcddb9c24e7a948700d3bc3c9eb1 [2021-11-09 09:38:09,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:38:09,348 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:38:09,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:38:09,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:38:09,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:38:09,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:38:09" (1/1) ... [2021-11-09 09:38:09,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@219fe266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:09, skipping insertion in model container [2021-11-09 09:38:09,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:38:09" (1/1) ... [2021-11-09 09:38:09,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:38:09,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:38:10,127 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c4488e-a8c1-41a3-8afb-5a072f70d358/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c[2836,2849] [2021-11-09 09:38:11,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:38:11,671 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:38:11,703 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c4488e-a8c1-41a3-8afb-5a072f70d358/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c[2836,2849] [2021-11-09 09:38:12,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:38:12,917 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:38:12,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12 WrapperNode [2021-11-09 09:38:12,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:38:12,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:38:12,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:38:12,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:38:12,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12" (1/1) ... [2021-11-09 09:38:13,567 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12" (1/1) ... [2021-11-09 09:38:43,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:38:43,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:38:43,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:38:43,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:38:43,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12" (1/1) ... [2021-11-09 09:38:43,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12" (1/1) ... [2021-11-09 09:38:44,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12" (1/1) ... [2021-11-09 09:38:44,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12" (1/1) ... [2021-11-09 09:38:47,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12" (1/1) ... [2021-11-09 09:38:49,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12" (1/1) ... [2021-11-09 09:38:49,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12" (1/1) ... [2021-11-09 09:38:50,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:38:50,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:38:50,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:38:50,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:38:50,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12" (1/1) ... [2021-11-09 09:38:50,562 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:38:50,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c4488e-a8c1-41a3-8afb-5a072f70d358/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:38:50,598 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c4488e-a8c1-41a3-8afb-5a072f70d358/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 09:38:50,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c4488e-a8c1-41a3-8afb-5a072f70d358/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 09:38:50,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:38:50,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 09:38:50,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 09:38:50,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 09:38:50,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 09:38:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:38:50,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:47:58,258 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:47:58,258 INFO L299 CfgBuilder]: Removed 39574 assume(true) statements. [2021-11-09 09:47:58,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:47:58 BoogieIcfgContainer [2021-11-09 09:47:58,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:47:58,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 09:47:58,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 09:47:58,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 09:47:58,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 09:38:09" (1/3) ... [2021-11-09 09:47:58,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f058ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:47:58, skipping insertion in model container [2021-11-09 09:47:58,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12" (2/3) ... [2021-11-09 09:47:58,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f058ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:47:58, skipping insertion in model container [2021-11-09 09:47:58,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:47:58" (3/3) ... [2021-11-09 09:47:58,341 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_aso.2.M4-1.c [2021-11-09 09:47:58,348 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 09:47:58,348 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 216 error locations. [2021-11-09 09:47:58,592 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 09:47:58,600 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=PETRI_NET, 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 [2021-11-09 09:47:58,600 INFO L340 AbstractCegarLoop]: Starting to check reachability of 216 error locations. [2021-11-09 09:47:59,571 INFO L276 IsEmpty]: Start isEmpty. Operand has 62532 states, 62315 states have (on average 1.5545374307951536) internal successors, (96871), 62531 states have internal predecessors, (96871), 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) [2021-11-09 09:48:00,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3694 [2021-11-09 09:48:00,618 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:48:00,623 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:48:00,624 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 213 more)] === [2021-11-09 09:48:00,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:48:00,639 INFO L85 PathProgramCache]: Analyzing trace with hash 862840112, now seen corresponding path program 1 times [2021-11-09 09:48:00,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:48:00,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868334916] [2021-11-09 09:48:00,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:48:00,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:48:01,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:48:06,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:48:06,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:48:06,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868334916] [2021-11-09 09:48:06,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868334916] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:48:06,719 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:48:06,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 09:48:06,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106566572] [2021-11-09 09:48:06,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 09:48:06,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:48:06,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 09:48:06,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:48:07,100 INFO L87 Difference]: Start difference. First operand has 62532 states, 62315 states have (on average 1.5545374307951536) internal successors, (96871), 62531 states have internal predecessors, (96871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1846.5) internal successors, (3693), 2 states have internal predecessors, (3693), 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) [2021-11-09 09:48:08,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:48:08,639 INFO L93 Difference]: Finished difference Result 125060 states and 193737 transitions. [2021-11-09 09:48:08,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 09:48:08,642 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1846.5) internal successors, (3693), 2 states have internal predecessors, (3693), 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 3693 [2021-11-09 09:48:08,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:48:09,003 INFO L225 Difference]: With dead ends: 125060 [2021-11-09 09:48:09,004 INFO L226 Difference]: Without dead ends: 62526 [2021-11-09 09:48:09,140 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:48:09,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62526 states. [2021-11-09 09:48:11,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62526 to 62526. [2021-11-09 09:48:11,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62526 states, 62310 states have (on average 1.3207671320815277) internal successors, (82297), 62525 states have internal predecessors, (82297), 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) [2021-11-09 09:48:11,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62526 states to 62526 states and 82297 transitions. [2021-11-09 09:48:11,908 INFO L78 Accepts]: Start accepts. Automaton has 62526 states and 82297 transitions. Word has length 3693 [2021-11-09 09:48:11,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:48:11,912 INFO L470 AbstractCegarLoop]: Abstraction has 62526 states and 82297 transitions. [2021-11-09 09:48:11,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1846.5) internal successors, (3693), 2 states have internal predecessors, (3693), 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) [2021-11-09 09:48:11,915 INFO L276 IsEmpty]: Start isEmpty. Operand 62526 states and 82297 transitions. [2021-11-09 09:48:12,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3694 [2021-11-09 09:48:12,273 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:48:12,276 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:48:12,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 09:48:12,277 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 213 more)] === [2021-11-09 09:48:12,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:48:12,283 INFO L85 PathProgramCache]: Analyzing trace with hash 2129686552, now seen corresponding path program 1 times [2021-11-09 09:48:12,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:48:12,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302091663] [2021-11-09 09:48:12,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:48:12,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms