./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50929c88-f791-4a30-b0ed-7c4fc5e82abc/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50929c88-f791-4a30-b0ed-7c4fc5e82abc/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50929c88-f791-4a30-b0ed-7c4fc5e82abc/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50929c88-f791-4a30-b0ed-7c4fc5e82abc/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50929c88-f791-4a30-b0ed-7c4fc5e82abc/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50929c88-f791-4a30-b0ed-7c4fc5e82abc/bin/utaipan-eEHZpOm5b7 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 64b25926fb6c7e27855d812b862643321480d6d0eb308c80224ee02bfde27516 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:43:55,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:43:55,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:43:55,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:43:55,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:43:55,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:43:55,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:43:55,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:43:55,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:43:55,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:43:55,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:43:55,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:43:55,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:43:55,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:43:55,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:43:55,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:43:55,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:43:55,321 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:43:55,323 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:43:55,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:43:55,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:43:55,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:43:55,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:43:55,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:43:55,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:43:55,335 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:43:55,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:43:55,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:43:55,337 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:43:55,338 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:43:55,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:43:55,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:43:55,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:43:55,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:43:55,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:43:55,344 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:43:55,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:43:55,345 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:43:55,345 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:43:55,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:43:55,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:43:55,348 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50929c88-f791-4a30-b0ed-7c4fc5e82abc/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 19:43:55,374 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:43:55,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:43:55,375 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:43:55,375 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:43:55,376 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:43:55,376 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:43:55,377 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:43:55,377 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:43:55,377 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:43:55,377 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:43:55,378 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:43:55,378 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:43:55,378 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:43:55,378 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:43:55,378 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:43:55,379 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:43:55,379 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:43:55,379 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:43:55,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:43:55,380 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 19:43:55,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:43:55,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 19:43:55,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:43:55,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:43:55,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:43:55,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:43:55,382 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 19:43:55,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:43:55,382 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:43:55,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:43:55,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:43:55,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:43:55,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:43:55,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:43:55,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:43:55,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:43:55,384 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:43:55,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:43:55,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:43:55,385 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:43:55,385 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:43:55,385 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_50929c88-f791-4a30-b0ed-7c4fc5e82abc/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50929c88-f791-4a30-b0ed-7c4fc5e82abc/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64b25926fb6c7e27855d812b862643321480d6d0eb308c80224ee02bfde27516 [2021-11-25 19:43:55,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:43:55,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:43:55,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:43:55,633 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:43:55,633 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:43:55,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50929c88-f791-4a30-b0ed-7c4fc5e82abc/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2021-11-25 19:43:55,692 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50929c88-f791-4a30-b0ed-7c4fc5e82abc/bin/utaipan-eEHZpOm5b7/data/54e55dbfe/9c77b65467ae4f918430bb410a2aea37/FLAGf236531df [2021-11-25 19:43:56,306 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:43:56,306 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50929c88-f791-4a30-b0ed-7c4fc5e82abc/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2021-11-25 19:43:56,335 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50929c88-f791-4a30-b0ed-7c4fc5e82abc/bin/utaipan-eEHZpOm5b7/data/54e55dbfe/9c77b65467ae4f918430bb410a2aea37/FLAGf236531df [2021-11-25 19:43:56,542 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50929c88-f791-4a30-b0ed-7c4fc5e82abc/bin/utaipan-eEHZpOm5b7/data/54e55dbfe/9c77b65467ae4f918430bb410a2aea37 [2021-11-25 19:43:56,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:43:56,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:43:56,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:43:56,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:43:56,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:43:56,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:43:56" (1/1) ... [2021-11-25 19:43:56,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b038638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:43:56, skipping insertion in model container [2021-11-25 19:43:56,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:43:56" (1/1) ... [2021-11-25 19:43:56,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:43:56,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:43:56,770 WARN L230 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_50929c88-f791-4a30-b0ed-7c4fc5e82abc/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2021-11-25 19:43:56,904 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:43:56,916 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:43:56,928 WARN L230 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_50929c88-f791-4a30-b0ed-7c4fc5e82abc/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2021-11-25 19:43:56,954 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:43:56,999 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:43:57,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:43:57 WrapperNode [2021-11-25 19:43:57,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:43:57,001 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:43:57,001 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:43:57,001 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:43:57,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:43:57" (1/1) ... [2021-11-25 19:43:57,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:43:57" (1/1) ... [2021-11-25 19:43:57,071 INFO L137 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2021-11-25 19:43:57,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:43:57,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:43:57,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:43:57,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:43:57,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:43:57" (1/1) ... [2021-11-25 19:43:57,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:43:57" (1/1) ... [2021-11-25 19:43:57,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:43:57" (1/1) ... [2021-11-25 19:43:57,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:43:57" (1/1) ... [2021-11-25 19:43:57,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:43:57" (1/1) ... [2021-11-25 19:43:57,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:43:57" (1/1) ... [2021-11-25 19:43:57,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:43:57" (1/1) ... [2021-11-25 19:43:57,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:43:57,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:43:57,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:43:57,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:43:57,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:43:57" (1/1) ... [2021-11-25 19:43:57,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:43:57,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50929c88-f791-4a30-b0ed-7c4fc5e82abc/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:43:57,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50929c88-f791-4a30-b0ed-7c4fc5e82abc/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:43:57,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50929c88-f791-4a30-b0ed-7c4fc5e82abc/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:43:57,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:43:57,196 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-25 19:43:57,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:43:57,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:43:57,196 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-25 19:43:57,196 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-25 19:43:57,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:43:57,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:43:57,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:43:57,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:43:57,198 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-25 19:43:57,337 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:43:57,351 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:43:57,533 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:43:57,541 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:43:57,541 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 19:43:57,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:43:57 BoogieIcfgContainer [2021-11-25 19:43:57,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:43:57,551 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:43:57,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:43:57,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:43:57,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:43:56" (1/3) ... [2021-11-25 19:43:57,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6925043e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:43:57, skipping insertion in model container [2021-11-25 19:43:57,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:43:57" (2/3) ... [2021-11-25 19:43:57,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6925043e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:43:57, skipping insertion in model container [2021-11-25 19:43:57,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:43:57" (3/3) ... [2021-11-25 19:43:57,557 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_pos.i [2021-11-25 19:43:57,562 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-25 19:43:57,562 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:43:57,562 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:43:57,563 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-25 19:43:57,585 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,586 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,586 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,586 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,586 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,586 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,587 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,587 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,587 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,587 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,588 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,588 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,588 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,588 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,588 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,589 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,589 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,589 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,589 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,590 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,593 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,593 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,593 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,593 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,593 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,594 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:43:57,598 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-25 19:43:57,638 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:43:57,644 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:43:57,644 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 19:43:57,657 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 19:43:57,671 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 66 transitions, 137 flow [2021-11-25 19:43:57,674 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 66 transitions, 137 flow [2021-11-25 19:43:57,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions, 137 flow [2021-11-25 19:43:57,732 INFO L129 PetriNetUnfolder]: 1/65 cut-off events. [2021-11-25 19:43:57,732 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-25 19:43:57,735 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 65 events. 1/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2021-11-25 19:43:57,737 INFO L116 LiptonReduction]: Number of co-enabled transitions 460 [2021-11-25 19:44:00,466 INFO L131 LiptonReduction]: Checked pairs total: 1169 [2021-11-25 19:44:00,467 INFO L133 LiptonReduction]: Total number of compositions: 65 [2021-11-25 19:44:00,477 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 14 transitions, 33 flow [2021-11-25 19:44:00,503 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 32 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 31 states have internal predecessors, (51), 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) [2021-11-25 19:44:00,505 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 31 states have internal predecessors, (51), 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) [2021-11-25 19:44:00,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 19:44:00,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:44:00,511 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 19:44:00,511 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 19:44:00,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:44:00,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1519543118, now seen corresponding path program 1 times [2021-11-25 19:44:00,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:44:00,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050151257] [2021-11-25 19:44:00,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:44:00,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:44:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:44:00,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:44:00,800 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:44:00,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050151257] [2021-11-25 19:44:00,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050151257] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:44:00,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:44:00,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 19:44:00,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049419751] [2021-11-25 19:44:00,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:44:00,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:44:00,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:44:00,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:44:00,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:44:00,841 INFO L87 Difference]: Start difference. First operand has 32 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 31 states have internal predecessors, (51), 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 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-25 19:44:00,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:44:00,869 INFO L93 Difference]: Finished difference Result 29 states and 45 transitions. [2021-11-25 19:44:00,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:44:00,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-11-25 19:44:00,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:44:00,879 INFO L225 Difference]: With dead ends: 29 [2021-11-25 19:44:00,880 INFO L226 Difference]: Without dead ends: 29 [2021-11-25 19:44:00,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:44:00,887 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:44:00,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 4 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:44:00,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-25 19:44:00,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-11-25 19:44:00,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 28 states have internal predecessors, (45), 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) [2021-11-25 19:44:00,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 45 transitions. [2021-11-25 19:44:00,928 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 45 transitions. Word has length 6 [2021-11-25 19:44:00,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:44:00,930 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 45 transitions. [2021-11-25 19:44:00,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-25 19:44:00,930 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 45 transitions. [2021-11-25 19:44:00,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 19:44:00,936 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:44:00,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:44:00,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:44:00,938 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 19:44:00,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:44:00,941 INFO L85 PathProgramCache]: Analyzing trace with hash 304741852, now seen corresponding path program 1 times [2021-11-25 19:44:00,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:44:00,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971713343] [2021-11-25 19:44:00,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:44:00,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:44:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:44:01,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:44:01,098 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:44:01,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971713343] [2021-11-25 19:44:01,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971713343] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:44:01,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:44:01,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:44:01,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053206004] [2021-11-25 19:44:01,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:44:01,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:44:01,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:44:01,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:44:01,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:44:01,102 INFO L87 Difference]: Start difference. First operand 29 states and 45 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-11-25 19:44:01,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:44:01,142 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2021-11-25 19:44:01,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:44:01,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2021-11-25 19:44:01,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:44:01,143 INFO L225 Difference]: With dead ends: 21 [2021-11-25 19:44:01,143 INFO L226 Difference]: Without dead ends: 21 [2021-11-25 19:44:01,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:44:01,145 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:44:01,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:44:01,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-25 19:44:01,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-25 19:44:01,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 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) [2021-11-25 19:44:01,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2021-11-25 19:44:01,150 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 9 [2021-11-25 19:44:01,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:44:01,150 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2021-11-25 19:44:01,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-11-25 19:44:01,150 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2021-11-25 19:44:01,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 19:44:01,151 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:44:01,151 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:44:01,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:44:01,152 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 19:44:01,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:44:01,152 INFO L85 PathProgramCache]: Analyzing trace with hash 245307412, now seen corresponding path program 2 times [2021-11-25 19:44:01,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:44:01,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50058663] [2021-11-25 19:44:01,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:44:01,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:44:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:44:01,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:44:01,275 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:44:01,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50058663] [2021-11-25 19:44:01,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50058663] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:44:01,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:44:01,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:44:01,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060907938] [2021-11-25 19:44:01,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:44:01,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:44:01,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:44:01,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:44:01,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:44:01,278 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-11-25 19:44:01,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:44:01,302 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2021-11-25 19:44:01,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:44:01,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2021-11-25 19:44:01,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:44:01,303 INFO L225 Difference]: With dead ends: 16 [2021-11-25 19:44:01,304 INFO L226 Difference]: Without dead ends: 12 [2021-11-25 19:44:01,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:44:01,306 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:44:01,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:44:01,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-11-25 19:44:01,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-25 19:44:01,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 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) [2021-11-25 19:44:01,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2021-11-25 19:44:01,315 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 9 [2021-11-25 19:44:01,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:44:01,316 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2021-11-25 19:44:01,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-11-25 19:44:01,316 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2021-11-25 19:44:01,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 19:44:01,317 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:44:01,317 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:44:01,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 19:44:01,317 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 19:44:01,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:44:01,319 INFO L85 PathProgramCache]: Analyzing trace with hash -823312513, now seen corresponding path program 1 times [2021-11-25 19:44:01,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:44:01,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726500861] [2021-11-25 19:44:01,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:44:01,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:44:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 19:44:01,371 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 19:44:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 19:44:01,426 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 19:44:01,426 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 19:44:01,427 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-25 19:44:01,429 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2021-11-25 19:44:01,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 19:44:01,431 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2021-11-25 19:44:01,436 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-25 19:44:01,436 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 19:44:01,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 07:44:01 BasicIcfg [2021-11-25 19:44:01,461 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 19:44:01,462 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 19:44:01,462 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 19:44:01,462 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 19:44:01,463 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:43:57" (3/4) ... [2021-11-25 19:44:01,464 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-25 19:44:01,512 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50929c88-f791-4a30-b0ed-7c4fc5e82abc/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 19:44:01,512 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 19:44:01,513 INFO L158 Benchmark]: Toolchain (without parser) took 4967.12ms. Allocated memory was 123.7MB in the beginning and 157.3MB in the end (delta: 33.6MB). Free memory was 92.0MB in the beginning and 71.3MB in the end (delta: 20.7MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. [2021-11-25 19:44:01,513 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 123.7MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:44:01,514 INFO L158 Benchmark]: CACSL2BoogieTranslator took 453.35ms. Allocated memory is still 123.7MB. Free memory was 91.7MB in the beginning and 87.5MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 19:44:01,514 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.28ms. Allocated memory is still 123.7MB. Free memory was 87.5MB in the beginning and 85.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 19:44:01,515 INFO L158 Benchmark]: Boogie Preprocessor took 36.80ms. Allocated memory is still 123.7MB. Free memory was 85.5MB in the beginning and 84.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 19:44:01,515 INFO L158 Benchmark]: RCFGBuilder took 432.11ms. Allocated memory is still 123.7MB. Free memory was 84.1MB in the beginning and 73.1MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 19:44:01,516 INFO L158 Benchmark]: TraceAbstraction took 3910.32ms. Allocated memory was 123.7MB in the beginning and 157.3MB in the end (delta: 33.6MB). Free memory was 72.5MB in the beginning and 73.4MB in the end (delta: -919.4kB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2021-11-25 19:44:01,516 INFO L158 Benchmark]: Witness Printer took 50.42ms. Allocated memory is still 157.3MB. Free memory was 73.4MB in the beginning and 71.3MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-25 19:44:01,519 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 123.7MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 453.35ms. Allocated memory is still 123.7MB. Free memory was 91.7MB in the beginning and 87.5MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.28ms. Allocated memory is still 123.7MB. Free memory was 87.5MB in the beginning and 85.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.80ms. Allocated memory is still 123.7MB. Free memory was 85.5MB in the beginning and 84.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 432.11ms. Allocated memory is still 123.7MB. Free memory was 84.1MB in the beginning and 73.1MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3910.32ms. Allocated memory was 123.7MB in the beginning and 157.3MB in the end (delta: 33.6MB). Free memory was 72.5MB in the beginning and 73.4MB in the end (delta: -919.4kB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. * Witness Printer took 50.42ms. Allocated memory is still 157.3MB. Free memory was 73.4MB in the beginning and 71.3MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 69 PlacesBefore, 17 PlacesAfterwards, 66 TransitionsBefore, 14 TransitionsAfterwards, 460 CoEnabledTransitionPairs, 7 FixpointIterations, 30 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 0 ChoiceCompositions, 65 TotalNumberOfCompositions, 1169 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 693, positive: 583, positive conditional: 0, positive unconditional: 583, negative: 110, negative conditional: 0, negative unconditional: 110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 383, positive: 354, positive conditional: 0, positive unconditional: 354, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 383, positive: 331, positive conditional: 0, positive unconditional: 331, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 52, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 121, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 87, negative conditional: 0, negative unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 693, positive: 229, positive conditional: 0, positive unconditional: 229, negative: 81, negative conditional: 0, negative unconditional: 81, unknown: 383, unknown conditional: 0, unknown unconditional: 383] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 32, Positive conditional cache size: 0, Positive unconditional cache size: 32, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, D={4:0}, g=0, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L687] 1 g = 17 VAL [A={3:0}, arg={0:0}, arg={0:0}, D={4:0}, g=17] [L690] 1 return ((void *)0); [L698] CALL 0 __VERIFIER_assert(g == 0) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, \result={0:0}, A={3:0}, arg={0:0}, arg={0:0}, cond=0, D={4:0}, g=17] - UnprovableResult [Line: 694]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 78 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 2 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 137 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2021-11-25 19:44:01,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50929c88-f791-4a30-b0ed-7c4fc5e82abc/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE