./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b8f1ea-a8de-4755-ab86-32b3369747fb/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b8f1ea-a8de-4755-ab86-32b3369747fb/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b8f1ea-a8de-4755-ab86-32b3369747fb/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b8f1ea-a8de-4755-ab86-32b3369747fb/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b8f1ea-a8de-4755-ab86-32b3369747fb/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b8f1ea-a8de-4755-ab86-32b3369747fb/bin/uautomizer-ZsLfNo2U6R --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 672adc4cc5a37e070cc95d046193d9ccd4d73b39f78c06c79ee40c1584c27afa --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 15:28:17,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:28:17,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:28:17,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:28:17,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:28:17,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:28:17,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:28:17,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:28:17,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:28:17,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:28:17,634 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:28:17,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:28:17,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:28:17,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:28:17,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:28:17,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:28:17,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:28:17,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:28:17,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:28:17,657 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:28:17,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:28:17,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:28:17,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:28:17,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:28:17,675 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:28:17,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:28:17,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:28:17,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:28:17,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:28:17,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:28:17,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:28:17,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:28:17,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:28:17,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:28:17,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:28:17,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:28:17,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:28:17,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:28:17,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:28:17,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:28:17,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:28:17,699 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b8f1ea-a8de-4755-ab86-32b3369747fb/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 15:28:17,739 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:28:17,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:28:17,751 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:28:17,752 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:28:17,753 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:28:17,753 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:28:17,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:28:17,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:28:17,754 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:28:17,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:28:17,756 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:28:17,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:28:17,756 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:28:17,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:28:17,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:28:17,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:28:17,757 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:28:17,758 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:28:17,758 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:28:17,758 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:28:17,758 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:28:17,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:28:17,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:28:17,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:28:17,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:28:17,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:28:17,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:28:17,760 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:28:17,760 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:28:17,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:28:17,761 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:28:17,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:28:17,761 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:28:17,761 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:28:17,762 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f2b8f1ea-a8de-4755-ab86-32b3369747fb/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b8f1ea-a8de-4755-ab86-32b3369747fb/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 672adc4cc5a37e070cc95d046193d9ccd4d73b39f78c06c79ee40c1584c27afa [2022-11-25 15:28:18,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:28:18,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:28:18,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:28:18,145 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:28:18,145 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:28:18,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b8f1ea-a8de-4755-ab86-32b3369747fb/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2022-11-25 15:28:21,282 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:28:21,536 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:28:21,536 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b8f1ea-a8de-4755-ab86-32b3369747fb/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2022-11-25 15:28:21,550 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b8f1ea-a8de-4755-ab86-32b3369747fb/bin/uautomizer-ZsLfNo2U6R/data/193743721/10684ec5f68a437da39f0d57e1926a27/FLAGeef25c4c1 [2022-11-25 15:28:21,569 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b8f1ea-a8de-4755-ab86-32b3369747fb/bin/uautomizer-ZsLfNo2U6R/data/193743721/10684ec5f68a437da39f0d57e1926a27 [2022-11-25 15:28:21,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:28:21,573 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:28:21,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:28:21,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:28:21,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:28:21,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:28:21" (1/1) ... [2022-11-25 15:28:21,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@397b9fd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:21, skipping insertion in model container [2022-11-25 15:28:21,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:28:21" (1/1) ... [2022-11-25 15:28:21,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:28:21,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:28:21,799 WARN L237 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_f2b8f1ea-a8de-4755-ab86-32b3369747fb/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i[1097,1110] [2022-11-25 15:28:21,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:28:21,993 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:28:22,013 WARN L237 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_f2b8f1ea-a8de-4755-ab86-32b3369747fb/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i[1097,1110] [2022-11-25 15:28:22,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:28:22,113 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:28:22,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:22 WrapperNode [2022-11-25 15:28:22,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:28:22,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:28:22,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:28:22,116 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:28:22,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:22" (1/1) ... [2022-11-25 15:28:22,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:22" (1/1) ... [2022-11-25 15:28:22,158 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-11-25 15:28:22,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:28:22,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:28:22,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:28:22,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:28:22,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:22" (1/1) ... [2022-11-25 15:28:22,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:22" (1/1) ... [2022-11-25 15:28:22,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:22" (1/1) ... [2022-11-25 15:28:22,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:22" (1/1) ... [2022-11-25 15:28:22,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:22" (1/1) ... [2022-11-25 15:28:22,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:22" (1/1) ... [2022-11-25 15:28:22,181 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:22" (1/1) ... [2022-11-25 15:28:22,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:22" (1/1) ... [2022-11-25 15:28:22,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:28:22,185 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:28:22,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:28:22,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:28:22,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:22" (1/1) ... [2022-11-25 15:28:22,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:28:22,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b8f1ea-a8de-4755-ab86-32b3369747fb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:28:22,225 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b8f1ea-a8de-4755-ab86-32b3369747fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:28:22,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b8f1ea-a8de-4755-ab86-32b3369747fb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:28:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:28:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:28:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 15:28:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:28:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:28:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 15:28:22,277 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 15:28:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:28:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:28:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:28:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:28:22,279 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 15:28:22,402 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:28:22,404 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:28:22,581 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:28:22,596 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:28:22,597 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 15:28:22,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:28:22 BoogieIcfgContainer [2022-11-25 15:28:22,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:28:22,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:28:22,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:28:22,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:28:22,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:28:21" (1/3) ... [2022-11-25 15:28:22,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c2d915b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:28:22, skipping insertion in model container [2022-11-25 15:28:22,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:28:22" (2/3) ... [2022-11-25 15:28:22,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c2d915b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:28:22, skipping insertion in model container [2022-11-25 15:28:22,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:28:22" (3/3) ... [2022-11-25 15:28:22,627 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_pos.i [2022-11-25 15:28:22,643 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 15:28:22,654 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:28:22,655 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 15:28:22,655 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 15:28:22,796 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-25 15:28:22,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 64 transitions, 136 flow [2022-11-25 15:28:22,895 INFO L130 PetriNetUnfolder]: 2/63 cut-off events. [2022-11-25 15:28:22,895 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 15:28:22,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 63 events. 2/63 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2022-11-25 15:28:22,905 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 64 transitions, 136 flow [2022-11-25 15:28:22,909 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 47 transitions, 97 flow [2022-11-25 15:28:22,913 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 15:28:22,929 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 47 transitions, 97 flow [2022-11-25 15:28:22,933 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 47 transitions, 97 flow [2022-11-25 15:28:22,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 47 transitions, 97 flow [2022-11-25 15:28:22,953 INFO L130 PetriNetUnfolder]: 1/47 cut-off events. [2022-11-25 15:28:22,953 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:28:22,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 47 events. 1/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2022-11-25 15:28:22,955 INFO L119 LiptonReduction]: Number of co-enabled transitions 192 [2022-11-25 15:28:25,192 INFO L134 LiptonReduction]: Checked pairs total: 150 [2022-11-25 15:28:25,192 INFO L136 LiptonReduction]: Total number of compositions: 49 [2022-11-25 15:28:25,228 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:28:25,237 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3a83ae7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:28:25,238 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-25 15:28:25,242 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2022-11-25 15:28:25,243 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:28:25,243 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:28:25,244 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 15:28:25,245 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:28:25,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:28:25,253 INFO L85 PathProgramCache]: Analyzing trace with hash 236835, now seen corresponding path program 1 times [2022-11-25 15:28:25,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:28:25,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651705248] [2022-11-25 15:28:25,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:28:25,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:28:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:28:25,398 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:28:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:28:25,439 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:28:25,441 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 15:28:25,442 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-11-25 15:28:25,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-11-25 15:28:25,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-11-25 15:28:25,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:28:25,446 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 15:28:25,453 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 15:28:25,453 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:28:25,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:28:25 BasicIcfg [2022-11-25 15:28:25,471 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:28:25,471 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:28:25,471 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:28:25,472 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:28:25,472 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:28:22" (3/4) ... [2022-11-25 15:28:25,474 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 15:28:25,511 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b8f1ea-a8de-4755-ab86-32b3369747fb/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 15:28:25,512 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:28:25,513 INFO L158 Benchmark]: Toolchain (without parser) took 3939.26ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 85.7MB in the beginning and 48.7MB in the end (delta: 37.0MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. [2022-11-25 15:28:25,513 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 104.9MB. Free memory is still 55.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:28:25,514 INFO L158 Benchmark]: CACSL2BoogieTranslator took 539.78ms. Allocated memory is still 127.9MB. Free memory was 85.7MB in the beginning and 66.3MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 15:28:25,515 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.58ms. Allocated memory is still 127.9MB. Free memory was 66.3MB in the beginning and 64.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:28:25,515 INFO L158 Benchmark]: Boogie Preprocessor took 25.71ms. Allocated memory is still 127.9MB. Free memory was 64.7MB in the beginning and 63.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:28:25,516 INFO L158 Benchmark]: RCFGBuilder took 414.36ms. Allocated memory is still 127.9MB. Free memory was 63.2MB in the beginning and 51.0MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 15:28:25,516 INFO L158 Benchmark]: TraceAbstraction took 2851.18ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 50.1MB in the beginning and 49.7MB in the end (delta: 350.5kB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2022-11-25 15:28:25,517 INFO L158 Benchmark]: Witness Printer took 40.57ms. Allocated memory is still 155.2MB. Free memory was 49.7MB in the beginning and 48.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:28:25,520 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 104.9MB. Free memory is still 55.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 539.78ms. Allocated memory is still 127.9MB. Free memory was 85.7MB in the beginning and 66.3MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.58ms. Allocated memory is still 127.9MB. Free memory was 66.3MB in the beginning and 64.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.71ms. Allocated memory is still 127.9MB. Free memory was 64.7MB in the beginning and 63.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 414.36ms. Allocated memory is still 127.9MB. Free memory was 63.2MB in the beginning and 51.0MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2851.18ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 50.1MB in the beginning and 49.7MB in the end (delta: 350.5kB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. * Witness Printer took 40.57ms. Allocated memory is still 155.2MB. Free memory was 49.7MB in the beginning and 48.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 50 PlacesBefore, 8 PlacesAfterwards, 47 TransitionsBefore, 4 TransitionsAfterwards, 192 CoEnabledTransitionPairs, 5 FixpointIterations, 23 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 49 TotalNumberOfCompositions, 150 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 139, independent: 136, independent conditional: 0, independent unconditional: 136, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 130, independent: 127, independent conditional: 0, independent unconditional: 127, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 130, independent: 123, independent conditional: 0, independent unconditional: 123, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 28, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 139, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 130, unknown conditional: 0, unknown unconditional: 130] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 1) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] - UnprovableResult [Line: 698]: 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, 87 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2022-11-25 15:28:25,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b8f1ea-a8de-4755-ab86-32b3369747fb/bin/uautomizer-ZsLfNo2U6R/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