./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8 --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 b855c2333aba0768da7f98c0f43af3ba5efb2578eeec0e9146f1a7f4f307c07a --- 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-2329fc7 [2022-12-13 11:26:27,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:26:27,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:26:27,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:26:27,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:26:27,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:26:27,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:26:27,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:26:27,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:26:27,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:26:27,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:26:27,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:26:27,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:26:27,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:26:27,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:26:27,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:26:27,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:26:27,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:26:27,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:26:27,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:26:27,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:26:27,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:26:27,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:26:27,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:26:27,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:26:27,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:26:27,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:26:27,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:26:27,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:26:27,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:26:27,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:26:27,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:26:27,735 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:26:27,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:26:27,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:26:27,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:26:27,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:26:27,737 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:26:27,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:26:27,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:26:27,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:26:27,738 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 11:26:27,752 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:26:27,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:26:27,753 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:26:27,753 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:26:27,753 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:26:27,753 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:26:27,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:26:27,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:26:27,754 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:26:27,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:26:27,754 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:26:27,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:26:27,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:26:27,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:26:27,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:26:27,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:26:27,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:26:27,755 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:26:27,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:26:27,756 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:26:27,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:26:27,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:26:27,756 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:26:27,756 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:26:27,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:26:27,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:26:27,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:26:27,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:26:27,757 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:26:27,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:26:27,757 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:26:27,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:26:27,757 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:26:27,757 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:26:27,757 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:26:27,757 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_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b855c2333aba0768da7f98c0f43af3ba5efb2578eeec0e9146f1a7f4f307c07a [2022-12-13 11:26:27,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:26:27,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:26:27,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:26:27,951 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:26:27,951 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:26:27,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i [2022-12-13 11:26:30,520 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:26:30,678 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:26:30,678 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i [2022-12-13 11:26:30,683 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/data/95b465213/65c7628a51ee4b84b3827081912a0d72/FLAG955c0e6e7 [2022-12-13 11:26:31,093 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/data/95b465213/65c7628a51ee4b84b3827081912a0d72 [2022-12-13 11:26:31,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:26:31,097 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:26:31,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:26:31,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:26:31,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:26:31,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:26:31" (1/1) ... [2022-12-13 11:26:31,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75ddc0d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:26:31, skipping insertion in model container [2022-12-13 11:26:31,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:26:31" (1/1) ... [2022-12-13 11:26:31,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:26:31,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:26:31,227 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_209fdecf-52c1-4ba3-8c48-29bf45620bef/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i[959,972] [2022-12-13 11:26:31,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:26:31,250 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:26:31,260 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_209fdecf-52c1-4ba3-8c48-29bf45620bef/sv-benchmarks/c/array-industry-pattern/array_of_struct_ptr_flag_init.i[959,972] [2022-12-13 11:26:31,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:26:31,276 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:26:31,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:26:31 WrapperNode [2022-12-13 11:26:31,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:26:31,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:26:31,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:26:31,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:26:31,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:26:31" (1/1) ... [2022-12-13 11:26:31,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:26:31" (1/1) ... [2022-12-13 11:26:31,303 INFO L138 Inliner]: procedures = 20, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2022-12-13 11:26:31,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:26:31,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:26:31,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:26:31,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:26:31,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:26:31" (1/1) ... [2022-12-13 11:26:31,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:26:31" (1/1) ... [2022-12-13 11:26:31,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:26:31" (1/1) ... [2022-12-13 11:26:31,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:26:31" (1/1) ... [2022-12-13 11:26:31,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:26:31" (1/1) ... [2022-12-13 11:26:31,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:26:31" (1/1) ... [2022-12-13 11:26:31,322 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:26:31" (1/1) ... [2022-12-13 11:26:31,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:26:31" (1/1) ... [2022-12-13 11:26:31,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:26:31,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:26:31,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:26:31,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:26:31,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:26:31" (1/1) ... [2022-12-13 11:26:31,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:26:31,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:26:31,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:26:31,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:26:31,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 11:26:31,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:26:31,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:26:31,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:26:31,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 11:26:31,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 11:26:31,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:26:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:26:31,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:26:31,447 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:26:31,448 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:26:31,556 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:26:31,561 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:26:31,562 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-13 11:26:31,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:26:31 BoogieIcfgContainer [2022-12-13 11:26:31,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:26:31,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:26:31,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:26:31,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:26:31,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:26:31" (1/3) ... [2022-12-13 11:26:31,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2418c688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:26:31, skipping insertion in model container [2022-12-13 11:26:31,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:26:31" (2/3) ... [2022-12-13 11:26:31,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2418c688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:26:31, skipping insertion in model container [2022-12-13 11:26:31,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:26:31" (3/3) ... [2022-12-13 11:26:31,570 INFO L112 eAbstractionObserver]: Analyzing ICFG array_of_struct_ptr_flag_init.i [2022-12-13 11:26:31,588 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:26:31,588 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:26:31,622 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:26:31,627 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;@1e943a77, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:26:31,627 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 11:26:31,631 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:31,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 11:26:31,637 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:26:31,637 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:26:31,638 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:26:31,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:26:31,643 INFO L85 PathProgramCache]: Analyzing trace with hash -2060710478, now seen corresponding path program 1 times [2022-12-13 11:26:31,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:26:31,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777626857] [2022-12-13 11:26:31,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:26:31,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:26:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:26:31,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:26:31,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:26:31,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777626857] [2022-12-13 11:26:31,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777626857] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:26:31,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:26:31,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:26:31,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688332959] [2022-12-13 11:26:31,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:26:31,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:26:31,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:26:31,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:26:31,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:26:31,902 INFO L87 Difference]: Start difference. First operand has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 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, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:31,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:26:31,928 INFO L93 Difference]: Finished difference Result 38 states and 54 transitions. [2022-12-13 11:26:31,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:26:31,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2022-12-13 11:26:31,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:26:31,936 INFO L225 Difference]: With dead ends: 38 [2022-12-13 11:26:31,936 INFO L226 Difference]: Without dead ends: 18 [2022-12-13 11:26:31,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:26:31,941 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 1 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:26:31,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 42 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:26:31,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-13 11:26:31,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-12-13 11:26:31,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:31,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2022-12-13 11:26:31,966 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2022-12-13 11:26:31,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:26:31,966 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-12-13 11:26:31,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:31,967 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-12-13 11:26:31,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 11:26:31,967 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:26:31,967 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:26:31,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:26:31,968 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:26:31,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:26:31,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1264138591, now seen corresponding path program 1 times [2022-12-13 11:26:31,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:26:31,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508998214] [2022-12-13 11:26:31,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:26:31,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:26:31,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:26:32,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 11:26:32,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:26:32,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508998214] [2022-12-13 11:26:32,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508998214] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:26:32,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:26:32,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:26:32,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889247135] [2022-12-13 11:26:32,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:26:32,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:26:32,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:26:32,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:26:32,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:26:32,026 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:32,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:26:32,049 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2022-12-13 11:26:32,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:26:32,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-12-13 11:26:32,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:26:32,050 INFO L225 Difference]: With dead ends: 35 [2022-12-13 11:26:32,050 INFO L226 Difference]: Without dead ends: 27 [2022-12-13 11:26:32,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:26:32,052 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 10 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:26:32,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 26 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:26:32,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-13 11:26:32,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 18. [2022-12-13 11:26:32,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:32,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2022-12-13 11:26:32,056 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 12 [2022-12-13 11:26:32,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:26:32,056 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2022-12-13 11:26:32,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:32,057 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2022-12-13 11:26:32,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-13 11:26:32,057 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:26:32,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:26:32,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 11:26:32,058 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:26:32,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:26:32,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1458340319, now seen corresponding path program 1 times [2022-12-13 11:26:32,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:26:32,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248227724] [2022-12-13 11:26:32,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:26:32,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:26:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:26:32,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 11:26:32,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:26:32,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248227724] [2022-12-13 11:26:32,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248227724] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:26:32,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069226074] [2022-12-13 11:26:32,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:26:32,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:26:32,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:26:32,137 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:26:32,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 11:26:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:26:32,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 11:26:32,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:26:32,220 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 11:26:32,220 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:26:32,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069226074] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:26:32,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:26:32,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-13 11:26:32,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031460831] [2022-12-13 11:26:32,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:26:32,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:26:32,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:26:32,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:26:32,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:26:32,223 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:32,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:26:32,235 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2022-12-13 11:26:32,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:26:32,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-12-13 11:26:32,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:26:32,236 INFO L225 Difference]: With dead ends: 32 [2022-12-13 11:26:32,236 INFO L226 Difference]: Without dead ends: 18 [2022-12-13 11:26:32,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:26:32,237 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 4 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:26:32,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 38 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:26:32,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-13 11:26:32,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-12-13 11:26:32,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:32,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2022-12-13 11:26:32,242 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 15 [2022-12-13 11:26:32,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:26:32,242 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-12-13 11:26:32,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:32,242 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2022-12-13 11:26:32,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-13 11:26:32,243 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:26:32,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:26:32,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 11:26:32,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:26:32,445 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:26:32,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:26:32,447 INFO L85 PathProgramCache]: Analyzing trace with hash 2027280351, now seen corresponding path program 1 times [2022-12-13 11:26:32,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:26:32,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775684558] [2022-12-13 11:26:32,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:26:32,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:26:32,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:26:32,592 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 11:26:32,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:26:32,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775684558] [2022-12-13 11:26:32,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775684558] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:26:32,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360325558] [2022-12-13 11:26:32,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:26:32,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:26:32,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:26:32,595 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:26:32,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 11:26:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:26:32,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 11:26:32,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:26:32,703 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 11:26:32,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:26:32,735 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 11:26:32,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360325558] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:26:32,736 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 11:26:32,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-12-13 11:26:32,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210020822] [2022-12-13 11:26:32,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 11:26:32,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 11:26:32,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:26:32,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 11:26:32,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:26:32,738 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:32,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:26:32,796 INFO L93 Difference]: Finished difference Result 56 states and 67 transitions. [2022-12-13 11:26:32,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:26:32,796 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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 15 [2022-12-13 11:26:32,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:26:32,797 INFO L225 Difference]: With dead ends: 56 [2022-12-13 11:26:32,797 INFO L226 Difference]: Without dead ends: 43 [2022-12-13 11:26:32,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:26:32,798 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 25 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:26:32,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 56 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:26:32,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-12-13 11:26:32,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 27. [2022-12-13 11:26:32,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:32,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-12-13 11:26:32,803 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 15 [2022-12-13 11:26:32,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:26:32,804 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-12-13 11:26:32,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:32,804 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-12-13 11:26:32,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-13 11:26:32,804 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:26:32,805 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:26:32,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 11:26:33,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:26:33,007 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:26:33,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:26:33,009 INFO L85 PathProgramCache]: Analyzing trace with hash 2044266853, now seen corresponding path program 2 times [2022-12-13 11:26:33,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:26:33,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570405707] [2022-12-13 11:26:33,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:26:33,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:26:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:26:33,259 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 11:26:33,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:26:33,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570405707] [2022-12-13 11:26:33,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570405707] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:26:33,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368415650] [2022-12-13 11:26:33,260 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 11:26:33,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:26:33,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:26:33,262 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:26:33,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 11:26:33,329 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 11:26:33,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:26:33,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 11:26:33,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:26:33,423 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 11:26:33,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:26:33,505 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 11:26:33,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368415650] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:26:33,506 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 11:26:33,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2022-12-13 11:26:33,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229298687] [2022-12-13 11:26:33,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 11:26:33,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-13 11:26:33,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:26:33,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-13 11:26:33,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=146, Unknown=0, NotChecked=0, Total=272 [2022-12-13 11:26:33,508 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:33,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:26:33,551 INFO L93 Difference]: Finished difference Result 55 states and 66 transitions. [2022-12-13 11:26:33,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 11:26:33,551 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 states have internal predecessors, (41), 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 24 [2022-12-13 11:26:33,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:26:33,552 INFO L225 Difference]: With dead ends: 55 [2022-12-13 11:26:33,552 INFO L226 Difference]: Without dead ends: 39 [2022-12-13 11:26:33,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=126, Invalid=146, Unknown=0, NotChecked=0, Total=272 [2022-12-13 11:26:33,553 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:26:33,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 47 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:26:33,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-12-13 11:26:33,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-12-13 11:26:33,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.105263157894737) internal successors, (42), 38 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:33,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2022-12-13 11:26:33,559 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 24 [2022-12-13 11:26:33,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:26:33,560 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2022-12-13 11:26:33,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:33,560 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2022-12-13 11:26:33,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-13 11:26:33,561 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:26:33,561 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:26:33,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 11:26:33,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:26:33,763 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:26:33,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:26:33,764 INFO L85 PathProgramCache]: Analyzing trace with hash 2120045553, now seen corresponding path program 3 times [2022-12-13 11:26:33,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:26:33,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207454132] [2022-12-13 11:26:33,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:26:33,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:26:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:26:34,172 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 11:26:34,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:26:34,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207454132] [2022-12-13 11:26:34,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207454132] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:26:34,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607264334] [2022-12-13 11:26:34,173 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 11:26:34,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:26:34,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:26:34,174 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:26:34,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 11:26:34,244 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-13 11:26:34,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:26:34,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 11:26:34,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:26:34,274 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-12-13 11:26:34,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:26:34,308 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-12-13 11:26:34,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607264334] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:26:34,308 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 11:26:34,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 19 [2022-12-13 11:26:34,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541928799] [2022-12-13 11:26:34,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 11:26:34,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-13 11:26:34,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:26:34,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-13 11:26:34,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2022-12-13 11:26:34,310 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 19 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:34,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:26:34,397 INFO L93 Difference]: Finished difference Result 106 states and 121 transitions. [2022-12-13 11:26:34,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 11:26:34,397 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 19 states have internal predecessors, (53), 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 36 [2022-12-13 11:26:34,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:26:34,398 INFO L225 Difference]: With dead ends: 106 [2022-12-13 11:26:34,398 INFO L226 Difference]: Without dead ends: 90 [2022-12-13 11:26:34,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2022-12-13 11:26:34,399 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 61 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:26:34,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 100 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:26:34,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-12-13 11:26:34,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 53. [2022-12-13 11:26:34,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.0769230769230769) internal successors, (56), 52 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:34,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2022-12-13 11:26:34,407 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 36 [2022-12-13 11:26:34,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:26:34,407 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2022-12-13 11:26:34,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 19 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:34,408 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2022-12-13 11:26:34,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-12-13 11:26:34,408 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:26:34,409 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:26:34,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 11:26:34,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-13 11:26:34,610 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:26:34,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:26:34,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1925935603, now seen corresponding path program 4 times [2022-12-13 11:26:34,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:26:34,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375466599] [2022-12-13 11:26:34,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:26:34,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:26:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:26:35,023 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-12-13 11:26:35,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:26:35,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375466599] [2022-12-13 11:26:35,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375466599] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:26:35,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376184541] [2022-12-13 11:26:35,023 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 11:26:35,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:26:35,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:26:35,024 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:26:35,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 11:26:35,496 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 11:26:35,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:26:35,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 11:26:35,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:26:35,563 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-12-13 11:26:35,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:26:35,650 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-12-13 11:26:35,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376184541] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:26:35,651 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 11:26:35,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 9] total 28 [2022-12-13 11:26:35,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616985674] [2022-12-13 11:26:35,651 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 11:26:35,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-12-13 11:26:35,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:26:35,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-12-13 11:26:35,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2022-12-13 11:26:35,653 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand has 28 states, 28 states have (on average 2.8214285714285716) internal successors, (79), 28 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:35,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:26:35,840 INFO L93 Difference]: Finished difference Result 200 states and 227 transitions. [2022-12-13 11:26:35,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-13 11:26:35,841 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.8214285714285716) internal successors, (79), 28 states have internal predecessors, (79), 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 50 [2022-12-13 11:26:35,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:26:35,842 INFO L225 Difference]: With dead ends: 200 [2022-12-13 11:26:35,842 INFO L226 Difference]: Without dead ends: 172 [2022-12-13 11:26:35,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2022-12-13 11:26:35,844 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 187 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:26:35,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 130 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:26:35,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-12-13 11:26:35,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 79. [2022-12-13 11:26:35,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.0512820512820513) internal successors, (82), 78 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:35,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 82 transitions. [2022-12-13 11:26:35,849 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 82 transitions. Word has length 50 [2022-12-13 11:26:35,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:26:35,850 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 82 transitions. [2022-12-13 11:26:35,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.8214285714285716) internal successors, (79), 28 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:35,850 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 82 transitions. [2022-12-13 11:26:35,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-13 11:26:35,851 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:26:35,851 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:26:35,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 11:26:36,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-13 11:26:36,052 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:26:36,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:26:36,053 INFO L85 PathProgramCache]: Analyzing trace with hash 2083201141, now seen corresponding path program 5 times [2022-12-13 11:26:36,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:26:36,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870168113] [2022-12-13 11:26:36,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:26:36,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:26:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:26:36,555 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2022-12-13 11:26:36,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:26:36,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870168113] [2022-12-13 11:26:36,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870168113] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:26:36,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179747763] [2022-12-13 11:26:36,556 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 11:26:36,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:26:36,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:26:36,557 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:26:36,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 11:26:38,489 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2022-12-13 11:26:38,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:26:38,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 11:26:38,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:26:38,716 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-12-13 11:26:38,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:26:39,037 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-12-13 11:26:39,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179747763] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:26:39,038 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 11:26:39,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 17] total 45 [2022-12-13 11:26:39,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065066119] [2022-12-13 11:26:39,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 11:26:39,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-12-13 11:26:39,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:26:39,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-12-13 11:26:39,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=600, Invalid=1380, Unknown=0, NotChecked=0, Total=1980 [2022-12-13 11:26:39,041 INFO L87 Difference]: Start difference. First operand 79 states and 82 transitions. Second operand has 45 states, 45 states have (on average 2.8666666666666667) internal successors, (129), 45 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:39,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:26:39,297 INFO L93 Difference]: Finished difference Result 386 states and 437 transitions. [2022-12-13 11:26:39,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-12-13 11:26:39,297 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 2.8666666666666667) internal successors, (129), 45 states have internal predecessors, (129), 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 76 [2022-12-13 11:26:39,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:26:39,298 INFO L225 Difference]: With dead ends: 386 [2022-12-13 11:26:39,298 INFO L226 Difference]: Without dead ends: 334 [2022-12-13 11:26:39,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=600, Invalid=1380, Unknown=0, NotChecked=0, Total=1980 [2022-12-13 11:26:39,300 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 502 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 11:26:39,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 236 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 11:26:39,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-12-13 11:26:39,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 129. [2022-12-13 11:26:39,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.03125) internal successors, (132), 128 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:39,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 132 transitions. [2022-12-13 11:26:39,312 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 132 transitions. Word has length 76 [2022-12-13 11:26:39,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:26:39,312 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 132 transitions. [2022-12-13 11:26:39,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 2.8666666666666667) internal successors, (129), 45 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:39,313 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 132 transitions. [2022-12-13 11:26:39,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-12-13 11:26:39,314 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:26:39,314 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:26:39,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 11:26:39,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:26:39,516 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:26:39,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:26:39,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1615061623, now seen corresponding path program 6 times [2022-12-13 11:26:39,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:26:39,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336204493] [2022-12-13 11:26:39,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:26:39,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:26:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:26:39,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1504 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 1335 trivial. 0 not checked. [2022-12-13 11:26:39,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:26:39,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336204493] [2022-12-13 11:26:39,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336204493] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:26:39,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443979902] [2022-12-13 11:26:39,991 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 11:26:39,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:26:39,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:26:39,992 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:26:39,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 11:26:40,106 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-12-13 11:26:40,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:26:40,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-13 11:26:40,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:26:40,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1504 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2022-12-13 11:26:40,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:26:40,937 INFO L321 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-12-13 11:26:40,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 21 [2022-12-13 11:26:40,943 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-13 11:26:40,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 12 [2022-12-13 11:26:40,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1504 backedges. 29 proven. 30 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2022-12-13 11:26:40,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443979902] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:26:40,958 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 11:26:40,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 8, 7] total 27 [2022-12-13 11:26:40,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060270322] [2022-12-13 11:26:40,959 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 11:26:40,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-13 11:26:40,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:26:40,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-13 11:26:40,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=544, Unknown=0, NotChecked=0, Total=702 [2022-12-13 11:26:40,960 INFO L87 Difference]: Start difference. First operand 129 states and 132 transitions. Second operand has 27 states, 27 states have (on average 2.5555555555555554) internal successors, (69), 27 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:41,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:26:41,238 INFO L93 Difference]: Finished difference Result 244 states and 254 transitions. [2022-12-13 11:26:41,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 11:26:41,238 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.5555555555555554) internal successors, (69), 27 states have internal predecessors, (69), 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 126 [2022-12-13 11:26:41,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:26:41,239 INFO L225 Difference]: With dead ends: 244 [2022-12-13 11:26:41,239 INFO L226 Difference]: Without dead ends: 144 [2022-12-13 11:26:41,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=433, Invalid=1547, Unknown=0, NotChecked=0, Total=1980 [2022-12-13 11:26:41,240 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 63 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:26:41,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 89 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:26:41,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-12-13 11:26:41,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 134. [2022-12-13 11:26:41,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.037593984962406) internal successors, (138), 133 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:41,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 138 transitions. [2022-12-13 11:26:41,251 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 138 transitions. Word has length 126 [2022-12-13 11:26:41,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:26:41,251 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 138 transitions. [2022-12-13 11:26:41,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.5555555555555554) internal successors, (69), 27 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:41,252 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 138 transitions. [2022-12-13 11:26:41,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-12-13 11:26:41,253 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:26:41,253 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 14, 14, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:26:41,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 11:26:41,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:26:41,455 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:26:41,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:26:41,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1690999614, now seen corresponding path program 1 times [2022-12-13 11:26:41,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:26:41,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358994527] [2022-12-13 11:26:41,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:26:41,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:26:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:26:41,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1533 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1531 trivial. 0 not checked. [2022-12-13 11:26:41,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:26:41,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358994527] [2022-12-13 11:26:41,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358994527] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:26:41,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:26:41,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:26:41,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031754] [2022-12-13 11:26:41,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:26:41,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:26:41,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:26:41,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:26:41,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:26:41,591 INFO L87 Difference]: Start difference. First operand 134 states and 138 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:41,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:26:41,598 INFO L93 Difference]: Finished difference Result 141 states and 146 transitions. [2022-12-13 11:26:41,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:26:41,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 131 [2022-12-13 11:26:41,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:26:41,599 INFO L225 Difference]: With dead ends: 141 [2022-12-13 11:26:41,599 INFO L226 Difference]: Without dead ends: 134 [2022-12-13 11:26:41,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:26:41,600 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:26:41,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 18 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:26:41,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-12-13 11:26:41,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2022-12-13 11:26:41,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.0225563909774436) internal successors, (136), 133 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:41,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 136 transitions. [2022-12-13 11:26:41,606 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 136 transitions. Word has length 131 [2022-12-13 11:26:41,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:26:41,606 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 136 transitions. [2022-12-13 11:26:41,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:41,606 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 136 transitions. [2022-12-13 11:26:41,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-12-13 11:26:41,607 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:26:41,607 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 14, 14, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:26:41,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 11:26:41,608 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:26:41,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:26:41,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1468975112, now seen corresponding path program 1 times [2022-12-13 11:26:41,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:26:41,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847618497] [2022-12-13 11:26:41,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:26:41,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:26:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:26:41,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1534 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2022-12-13 11:26:41,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:26:41,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847618497] [2022-12-13 11:26:41,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847618497] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:26:41,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852980348] [2022-12-13 11:26:41,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:26:41,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:26:41,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:26:41,975 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:26:41,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 11:26:42,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:26:42,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 11:26:42,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:26:42,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1534 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2022-12-13 11:26:42,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:26:42,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1534 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2022-12-13 11:26:42,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852980348] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:26:42,782 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 11:26:42,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 47 [2022-12-13 11:26:42,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083790912] [2022-12-13 11:26:42,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 11:26:42,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-12-13 11:26:42,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:26:42,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-12-13 11:26:42,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=976, Invalid=1186, Unknown=0, NotChecked=0, Total=2162 [2022-12-13 11:26:42,784 INFO L87 Difference]: Start difference. First operand 134 states and 136 transitions. Second operand has 47 states, 47 states have (on average 2.2127659574468086) internal successors, (104), 47 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:42,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:26:42,877 INFO L93 Difference]: Finished difference Result 269 states and 288 transitions. [2022-12-13 11:26:42,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-13 11:26:42,877 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 2.2127659574468086) internal successors, (104), 47 states have internal predecessors, (104), 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 133 [2022-12-13 11:26:42,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:26:42,879 INFO L225 Difference]: With dead ends: 269 [2022-12-13 11:26:42,879 INFO L226 Difference]: Without dead ends: 166 [2022-12-13 11:26:42,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=976, Invalid=1186, Unknown=0, NotChecked=0, Total=2162 [2022-12-13 11:26:42,881 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 3 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:26:42,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 72 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:26:42,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-12-13 11:26:42,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-12-13 11:26:42,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 165 states have (on average 1.018181818181818) internal successors, (168), 165 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:42,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 168 transitions. [2022-12-13 11:26:42,887 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 168 transitions. Word has length 133 [2022-12-13 11:26:42,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:26:42,887 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 168 transitions. [2022-12-13 11:26:42,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 2.2127659574468086) internal successors, (104), 47 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:42,888 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 168 transitions. [2022-12-13 11:26:42,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-12-13 11:26:42,889 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:26:42,889 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 30, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:26:42,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-13 11:26:43,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-13 11:26:43,091 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:26:43,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:26:43,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1733851160, now seen corresponding path program 2 times [2022-12-13 11:26:43,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:26:43,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876343629] [2022-12-13 11:26:43,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:26:43,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:26:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:26:44,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2238 backedges. 0 proven. 900 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2022-12-13 11:26:44,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:26:44,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876343629] [2022-12-13 11:26:44,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876343629] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:26:44,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345808964] [2022-12-13 11:26:44,216 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 11:26:44,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:26:44,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:26:44,217 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:26:44,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 11:26:44,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 11:26:44,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:26:44,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 1164 conjuncts, 34 conjunts are in the unsatisfiable core [2022-12-13 11:26:44,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:26:45,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2238 backedges. 0 proven. 900 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2022-12-13 11:26:45,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:26:46,726 INFO L134 CoverageAnalysis]: Checked inductivity of 2238 backedges. 0 proven. 900 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2022-12-13 11:26:46,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345808964] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:26:46,726 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 11:26:46,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 95 [2022-12-13 11:26:46,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15951157] [2022-12-13 11:26:46,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 11:26:46,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-12-13 11:26:46,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:26:46,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-12-13 11:26:46,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4000, Invalid=4930, Unknown=0, NotChecked=0, Total=8930 [2022-12-13 11:26:46,729 INFO L87 Difference]: Start difference. First operand 166 states and 168 transitions. Second operand has 95 states, 95 states have (on average 2.1052631578947367) internal successors, (200), 95 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:46,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:26:46,946 INFO L93 Difference]: Finished difference Result 333 states and 368 transitions. [2022-12-13 11:26:46,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-12-13 11:26:46,947 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 2.1052631578947367) internal successors, (200), 95 states have internal predecessors, (200), 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 165 [2022-12-13 11:26:46,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:26:46,948 INFO L225 Difference]: With dead ends: 333 [2022-12-13 11:26:46,948 INFO L226 Difference]: Without dead ends: 230 [2022-12-13 11:26:46,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=4000, Invalid=4930, Unknown=0, NotChecked=0, Total=8930 [2022-12-13 11:26:46,950 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 3 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 11:26:46,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 100 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 11:26:46,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-12-13 11:26:46,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2022-12-13 11:26:46,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 229 states have (on average 1.0131004366812226) internal successors, (232), 229 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:46,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 232 transitions. [2022-12-13 11:26:46,957 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 232 transitions. Word has length 165 [2022-12-13 11:26:46,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:26:46,957 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 232 transitions. [2022-12-13 11:26:46,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 2.1052631578947367) internal successors, (200), 95 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:46,957 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 232 transitions. [2022-12-13 11:26:46,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-12-13 11:26:46,959 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:26:46,959 INFO L195 NwaCegarLoop]: trace histogram [62, 62, 30, 30, 30, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:26:46,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-12-13 11:26:47,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:26:47,161 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:26:47,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:26:47,162 INFO L85 PathProgramCache]: Analyzing trace with hash -286095448, now seen corresponding path program 3 times [2022-12-13 11:26:47,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:26:47,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404076498] [2022-12-13 11:26:47,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:26:47,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:26:47,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:26:50,281 INFO L134 CoverageAnalysis]: Checked inductivity of 5182 backedges. 0 proven. 3844 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2022-12-13 11:26:50,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:26:50,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404076498] [2022-12-13 11:26:50,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404076498] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:26:50,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441031216] [2022-12-13 11:26:50,281 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 11:26:50,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:26:50,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:26:50,282 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:26:50,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 11:26:50,452 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-13 11:26:50,452 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:26:50,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-13 11:26:50,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:26:50,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 11:26:51,437 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 11:26:51,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 20 [2022-12-13 11:26:51,553 INFO L134 CoverageAnalysis]: Checked inductivity of 5182 backedges. 0 proven. 211 refuted. 0 times theorem prover too weak. 4971 trivial. 0 not checked. [2022-12-13 11:26:51,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:26:52,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 42 [2022-12-13 11:26:52,916 INFO L134 CoverageAnalysis]: Checked inductivity of 5182 backedges. 0 proven. 211 refuted. 0 times theorem prover too weak. 4971 trivial. 0 not checked. [2022-12-13 11:26:52,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441031216] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:26:52,916 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 11:26:52,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 9, 9] total 77 [2022-12-13 11:26:52,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584974837] [2022-12-13 11:26:52,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 11:26:52,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-12-13 11:26:52,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:26:52,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-12-13 11:26:52,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2247, Invalid=3605, Unknown=0, NotChecked=0, Total=5852 [2022-12-13 11:26:52,919 INFO L87 Difference]: Start difference. First operand 230 states and 232 transitions. Second operand has 77 states, 77 states have (on average 2.155844155844156) internal successors, (166), 77 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:27:00,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:27:00,605 INFO L93 Difference]: Finished difference Result 326 states and 331 transitions. [2022-12-13 11:27:00,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-12-13 11:27:00,605 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 77 states have (on average 2.155844155844156) internal successors, (166), 77 states have internal predecessors, (166), 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 229 [2022-12-13 11:27:00,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:27:00,605 INFO L225 Difference]: With dead ends: 326 [2022-12-13 11:27:00,605 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 11:27:00,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 444 SyntacticMatches, 2 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 11767 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=13478, Invalid=30412, Unknown=0, NotChecked=0, Total=43890 [2022-12-13 11:27:00,610 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 26 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 11:27:00,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 30 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 178 Invalid, 1 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 11:27:00,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 11:27:00,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 11:27:00,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:27:00,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 11:27:00,611 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 229 [2022-12-13 11:27:00,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:27:00,611 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 11:27:00,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 2.155844155844156) internal successors, (166), 77 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:27:00,611 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 11:27:00,611 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 11:27:00,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 11:27:00,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 11:27:00,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-13 11:27:00,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 11:27:01,934 INFO L899 garLoopResultBuilder]: For program point L35-2(lines 35 41) no Hoare annotation was computed. [2022-12-13 11:27:01,934 INFO L895 garLoopResultBuilder]: At program point L35-3(lines 35 41) the Hoare annotation is: (let ((.cse7 (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#a~0#1.base|))) (let ((.cse0 (= |ULTIMATE.start_main_~#a~0#1.offset| |ULTIMATE.start_init_~a#1.offset|)) (.cse1 (= |ULTIMATE.start_init_~size#1| 100000)) (.cse2 (exists ((|v_ULTIMATE.start_init_~i~0#1_110| Int)) (and (not (= (select .cse7 (+ |ULTIMATE.start_main_~#a~0#1.offset| (* |v_ULTIMATE.start_init_~i~0#1_110| 4))) 0)) (< |v_ULTIMATE.start_init_~i~0#1_110| |ULTIMATE.start_init_~size#1|) (<= |ULTIMATE.start_init_~i~0#1| (+ |v_ULTIMATE.start_init_~i~0#1_110| 1))))) (.cse3 (forall ((|ULTIMATE.start_main_~i~1#1| Int)) (or (not (= (select .cse7 (+ |ULTIMATE.start_main_~#a~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4))) 0)) (not (< |ULTIMATE.start_main_~i~1#1| 100000)) (<= |ULTIMATE.start_main_~i~1#1| 99998)))) (.cse4 (= |ULTIMATE.start_main_~flag~0#1| 0)) (.cse5 (= |ULTIMATE.start_main_~#a~0#1.offset| 0)) (.cse6 (= |ULTIMATE.start_init_~a#1.base| |ULTIMATE.start_main_~#a~0#1.base|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~i~1#1| 0) .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~i~1#1| 99999) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#a~0#1.base|) |ULTIMATE.start_main_~#a~0#1.offset|) 0) .cse2 (= (select .cse7 |ULTIMATE.start_main_~#a~0#1.offset|) 0) .cse3 .cse4 .cse5 .cse6) (<= 1 |ULTIMATE.start_main_~flag~0#1|)))) [2022-12-13 11:27:01,934 INFO L899 garLoopResultBuilder]: For program point L35-4(lines 35 41) no Hoare annotation was computed. [2022-12-13 11:27:01,934 INFO L899 garLoopResultBuilder]: For program point L23-2(lines 23 26) no Hoare annotation was computed. [2022-12-13 11:27:01,934 INFO L895 garLoopResultBuilder]: At program point L23-3(lines 23 26) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~#a~0#1.offset| |ULTIMATE.start_init_~a#1.offset|)) (.cse1 (= |ULTIMATE.start_init_~size#1| 100000)) (.cse2 (= |ULTIMATE.start_main_~flag~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~#a~0#1.offset| 0)) (.cse4 (= |ULTIMATE.start_init_~a#1.base| |ULTIMATE.start_main_~#a~0#1.base|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_init_~i~0#1| 0) .cse2 .cse3 .cse4) (and .cse0 .cse1 (exists ((|v_ULTIMATE.start_init_~i~0#1_110| Int)) (and (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#a~0#1.base|) (+ |ULTIMATE.start_main_~#a~0#1.offset| (* |v_ULTIMATE.start_init_~i~0#1_110| 4))) 0)) (< |v_ULTIMATE.start_init_~i~0#1_110| |ULTIMATE.start_init_~size#1|) (<= |ULTIMATE.start_init_~i~0#1| (+ |v_ULTIMATE.start_init_~i~0#1_110| 1)))) .cse2 .cse3 .cse4))) [2022-12-13 11:27:01,935 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-12-13 11:27:01,935 INFO L899 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2022-12-13 11:27:01,935 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2022-12-13 11:27:01,935 INFO L899 garLoopResultBuilder]: For program point L15-3(line 15) no Hoare annotation was computed. [2022-12-13 11:27:01,935 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 28 48) the Hoare annotation is: true [2022-12-13 11:27:01,935 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 11:27:01,935 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 11:27:01,935 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2022-12-13 11:27:01,935 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 27) no Hoare annotation was computed. [2022-12-13 11:27:01,935 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 40) no Hoare annotation was computed. [2022-12-13 11:27:01,935 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 11:27:01,935 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 11:27:01,935 INFO L899 garLoopResultBuilder]: For program point L42-2(lines 42 46) no Hoare annotation was computed. [2022-12-13 11:27:01,935 INFO L895 garLoopResultBuilder]: At program point L42-3(lines 42 46) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~flag~0#1|) [2022-12-13 11:27:01,935 INFO L899 garLoopResultBuilder]: For program point L42-4(lines 42 46) no Hoare annotation was computed. [2022-12-13 11:27:01,938 INFO L445 BasicCegarLoop]: Path program histogram: [6, 3, 1, 1, 1, 1] [2022-12-13 11:27:01,939 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:27:01,947 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:01,948 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,948 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,948 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,949 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:01,950 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,950 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,950 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,951 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:01,951 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,951 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,951 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,951 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:01,951 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-13 11:27:01,951 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-13 11:27:01,951 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-13 11:27:01,952 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-12-13 11:27:01,952 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:01,952 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,952 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,952 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,952 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:01,952 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:01,952 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-13 11:27:01,952 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-13 11:27:01,952 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-13 11:27:01,953 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:01,953 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,953 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,953 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,953 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:01,954 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-13 11:27:01,954 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-13 11:27:01,954 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-13 11:27:01,954 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-12-13 11:27:01,954 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:01,954 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,954 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,954 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,954 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:01,954 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:01,954 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-13 11:27:01,955 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-13 11:27:01,955 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-13 11:27:01,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:27:01 BoogieIcfgContainer [2022-12-13 11:27:01,956 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:27:01,956 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:27:01,956 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:27:01,956 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:27:01,956 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:26:31" (3/4) ... [2022-12-13 11:27:01,958 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 11:27:01,966 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-13 11:27:01,966 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 11:27:01,967 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 11:27:01,967 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 11:27:01,982 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((a == a && size == 100000) && i == 0) && flag == 0) && a == 0) && a == a) || (((((a == a && size == 100000) && (\exists v_ULTIMATE.start_init_~i~0#1_110 : int :: (!(#memory_$Pointer$[a][a + v_ULTIMATE.start_init_~i~0#1_110 * 4] == 0) && v_ULTIMATE.start_init_~i~0#1_110 < size) && i <= v_ULTIMATE.start_init_~i~0#1_110 + 1)) && flag == 0) && a == 0) && a == a) [2022-12-13 11:27:01,982 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((a == a && size == 100000) && i == 0) && (\exists v_ULTIMATE.start_init_~i~0#1_110 : int :: (!(#memory_$Pointer$[a][a + v_ULTIMATE.start_init_~i~0#1_110 * 4] == 0) && v_ULTIMATE.start_init_~i~0#1_110 < size) && i <= v_ULTIMATE.start_init_~i~0#1_110 + 1)) && (forall ULTIMATE.start_main_~i~1#1 : int :: (!(#memory_$Pointer$[a][a + ULTIMATE.start_main_~i~1#1 * 4] == 0) || !(ULTIMATE.start_main_~i~1#1 < 100000)) || ULTIMATE.start_main_~i~1#1 <= 99998)) && flag == 0) && a == 0) && a == a) || (((((((((a == a && size == 100000) && i <= 99999) && #memory_$Pointer$[a][a] == 0) && (\exists v_ULTIMATE.start_init_~i~0#1_110 : int :: (!(#memory_$Pointer$[a][a + v_ULTIMATE.start_init_~i~0#1_110 * 4] == 0) && v_ULTIMATE.start_init_~i~0#1_110 < size) && i <= v_ULTIMATE.start_init_~i~0#1_110 + 1)) && #memory_$Pointer$[a][a] == 0) && (forall ULTIMATE.start_main_~i~1#1 : int :: (!(#memory_$Pointer$[a][a + ULTIMATE.start_main_~i~1#1 * 4] == 0) || !(ULTIMATE.start_main_~i~1#1 < 100000)) || ULTIMATE.start_main_~i~1#1 <= 99998)) && flag == 0) && a == 0) && a == a)) || 1 <= flag [2022-12-13 11:27:01,986 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 11:27:01,987 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:27:01,987 INFO L158 Benchmark]: Toolchain (without parser) took 30890.48ms. Allocated memory was 111.1MB in the beginning and 293.6MB in the end (delta: 182.5MB). Free memory was 76.0MB in the beginning and 187.6MB in the end (delta: -111.6MB). Peak memory consumption was 71.5MB. Max. memory is 16.1GB. [2022-12-13 11:27:01,987 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 111.1MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:27:01,987 INFO L158 Benchmark]: CACSL2BoogieTranslator took 179.56ms. Allocated memory is still 111.1MB. Free memory was 76.0MB in the beginning and 65.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 11:27:01,987 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.67ms. Allocated memory is still 111.1MB. Free memory was 65.5MB in the beginning and 63.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:27:01,987 INFO L158 Benchmark]: Boogie Preprocessor took 21.43ms. Allocated memory is still 111.1MB. Free memory was 63.8MB in the beginning and 62.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:27:01,988 INFO L158 Benchmark]: RCFGBuilder took 237.39ms. Allocated memory is still 111.1MB. Free memory was 62.7MB in the beginning and 51.6MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 11:27:01,988 INFO L158 Benchmark]: TraceAbstraction took 30390.68ms. Allocated memory was 111.1MB in the beginning and 293.6MB in the end (delta: 182.5MB). Free memory was 50.8MB in the beginning and 190.8MB in the end (delta: -139.9MB). Peak memory consumption was 164.0MB. Max. memory is 16.1GB. [2022-12-13 11:27:01,988 INFO L158 Benchmark]: Witness Printer took 30.66ms. Allocated memory is still 293.6MB. Free memory was 190.8MB in the beginning and 187.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:27:01,989 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 111.1MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 179.56ms. Allocated memory is still 111.1MB. Free memory was 76.0MB in the beginning and 65.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.67ms. Allocated memory is still 111.1MB. Free memory was 65.5MB in the beginning and 63.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.43ms. Allocated memory is still 111.1MB. Free memory was 63.8MB in the beginning and 62.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 237.39ms. Allocated memory is still 111.1MB. Free memory was 62.7MB in the beginning and 51.6MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 30390.68ms. Allocated memory was 111.1MB in the beginning and 293.6MB in the end (delta: 182.5MB). Free memory was 50.8MB in the beginning and 190.8MB in the end (delta: -139.9MB). Peak memory consumption was 164.0MB. Max. memory is 16.1GB. * Witness Printer took 30.66ms. Allocated memory is still 293.6MB. Free memory was 190.8MB in the beginning and 187.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - PositiveResult [Line: 15]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 30.3s, OverallIterations: 13, TraceHistogramMax: 62, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 894 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 894 mSDsluCounter, 984 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 794 mSDsCounter, 131 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1106 IncrementalHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 131 mSolverCounterUnsat, 190 mSDtfsCounter, 1106 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2052 GetRequests, 1548 SyntacticMatches, 2 SemanticMatches, 502 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 13224 ImplicationChecksByTransitivity, 13.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=230occurred in iteration=12, InterpolantAutomatonStates: 379, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 371 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 102 NumberOfFragments, 204 HoareAnnotationTreeSize, 4 FomulaSimplifications, 208 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 4 FomulaSimplificationsInter, 4992 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 13.4s InterpolantComputationTime, 1891 NumberOfCodeBlocks, 1571 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 2713 ConstructedInterpolants, 181 QuantifiedInterpolants, 16468 SizeOfPredicates, 37 NumberOfNonLiveVariables, 3721 ConjunctsInSsa, 146 ConjunctsInUnsatCore, 32 InterpolantComputations, 4 PerfectInterpolantSequences, 26190/35105 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant [2022-12-13 11:27:01,995 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:01,996 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,996 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,996 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,997 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:01,997 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,997 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,997 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] Derived loop invariant: (((((a == a && size == 100000) && i == 0) && flag == 0) && a == 0) && a == a) || (((((a == a && size == 100000) && (\exists v_ULTIMATE.start_init_~i~0#1_110 : int :: (!(#memory_$Pointer$[a][a + v_ULTIMATE.start_init_~i~0#1_110 * 4] == 0) && v_ULTIMATE.start_init_~i~0#1_110 < size) && i <= v_ULTIMATE.start_init_~i~0#1_110 + 1)) && flag == 0) && a == 0) && a == a) - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 1 <= flag - InvariantResult [Line: 35]: Loop Invariant [2022-12-13 11:27:01,998 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:01,998 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,998 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,998 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,998 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:01,998 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-13 11:27:01,999 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-13 11:27:01,999 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-13 11:27:01,999 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-12-13 11:27:01,999 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:01,999 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,999 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,999 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:01,999 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:02,000 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:02,000 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-13 11:27:02,000 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-13 11:27:02,000 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-13 11:27:02,001 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:02,001 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:02,001 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:02,001 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:02,001 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:02,002 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-13 11:27:02,002 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-13 11:27:02,002 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-13 11:27:02,002 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-12-13 11:27:02,002 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:02,002 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:02,002 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:02,002 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_init_~i~0#1_110,QUANTIFIED] [2022-12-13 11:27:02,003 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:02,003 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-13 11:27:02,003 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-13 11:27:02,003 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] [2022-12-13 11:27:02,003 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~1#1,QUANTIFIED] Derived loop invariant: ((((((((a == a && size == 100000) && i == 0) && (\exists v_ULTIMATE.start_init_~i~0#1_110 : int :: (!(#memory_$Pointer$[a][a + v_ULTIMATE.start_init_~i~0#1_110 * 4] == 0) && v_ULTIMATE.start_init_~i~0#1_110 < size) && i <= v_ULTIMATE.start_init_~i~0#1_110 + 1)) && (forall ULTIMATE.start_main_~i~1#1 : int :: (!(#memory_$Pointer$[a][a + ULTIMATE.start_main_~i~1#1 * 4] == 0) || !(ULTIMATE.start_main_~i~1#1 < 100000)) || ULTIMATE.start_main_~i~1#1 <= 99998)) && flag == 0) && a == 0) && a == a) || (((((((((a == a && size == 100000) && i <= 99999) && #memory_$Pointer$[a][a] == 0) && (\exists v_ULTIMATE.start_init_~i~0#1_110 : int :: (!(#memory_$Pointer$[a][a + v_ULTIMATE.start_init_~i~0#1_110 * 4] == 0) && v_ULTIMATE.start_init_~i~0#1_110 < size) && i <= v_ULTIMATE.start_init_~i~0#1_110 + 1)) && #memory_$Pointer$[a][a] == 0) && (forall ULTIMATE.start_main_~i~1#1 : int :: (!(#memory_$Pointer$[a][a + ULTIMATE.start_main_~i~1#1 * 4] == 0) || !(ULTIMATE.start_main_~i~1#1 < 100000)) || ULTIMATE.start_main_~i~1#1 <= 99998)) && flag == 0) && a == 0) && a == a)) || 1 <= flag RESULT: Ultimate proved your program to be correct! [2022-12-13 11:27:02,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_209fdecf-52c1-4ba3-8c48-29bf45620bef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE