./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-40.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash daa057e82631e6f1d313140c57470663c53a0147ee44af9a015893bbe50819e3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:31:45,246 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:31:45,314 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 13:31:45,318 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:31:45,318 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:31:45,339 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:31:45,339 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:31:45,340 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:31:45,340 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:31:45,341 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:31:45,341 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:31:45,342 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:31:45,342 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:31:45,343 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:31:45,343 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:31:45,344 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:31:45,344 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:31:45,345 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:31:45,345 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:31:45,346 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:31:45,346 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:31:45,347 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:31:45,347 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:31:45,348 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:31:45,348 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:31:45,349 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:31:45,349 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:31:45,350 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:31:45,350 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:31:45,350 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:31:45,351 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:31:45,351 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:31:45,352 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:31:45,352 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:31:45,352 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:31:45,353 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:31:45,353 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:31:45,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:31:45,354 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:31:45,354 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:31:45,355 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:31:45,355 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:31:45,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:31:45,355 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:31:45,356 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:31:45,356 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:31:45,356 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:31:45,356 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> daa057e82631e6f1d313140c57470663c53a0147ee44af9a015893bbe50819e3 [2023-12-02 13:31:45,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:31:45,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:31:45,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:31:45,581 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:31:45,582 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:31:45,583 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-40.i [2023-12-02 13:31:48,371 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:31:48,561 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:31:48,562 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-40.i [2023-12-02 13:31:48,570 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/data/ce756bf4c/89cb99220910471d91f507fb69cea95d/FLAG837ba6ac8 [2023-12-02 13:31:48,585 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/data/ce756bf4c/89cb99220910471d91f507fb69cea95d [2023-12-02 13:31:48,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:31:48,589 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:31:48,591 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:31:48,591 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:31:48,597 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:31:48,597 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:31:48" (1/1) ... [2023-12-02 13:31:48,598 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@de75542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:48, skipping insertion in model container [2023-12-02 13:31:48,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:31:48" (1/1) ... [2023-12-02 13:31:48,624 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:31:48,747 WARN L240 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_08946db6-55c1-4602-93cd-6020b1ad1ba5/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-40.i[915,928] [2023-12-02 13:31:48,780 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:31:48,793 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:31:48,804 WARN L240 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_08946db6-55c1-4602-93cd-6020b1ad1ba5/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-40.i[915,928] [2023-12-02 13:31:48,823 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:31:48,839 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:31:48,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:48 WrapperNode [2023-12-02 13:31:48,840 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:31:48,841 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:31:48,841 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:31:48,841 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:31:48,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:48" (1/1) ... [2023-12-02 13:31:48,857 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:48" (1/1) ... [2023-12-02 13:31:48,891 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91 [2023-12-02 13:31:48,891 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:31:48,892 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:31:48,892 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:31:48,893 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:31:48,905 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:48" (1/1) ... [2023-12-02 13:31:48,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:48" (1/1) ... [2023-12-02 13:31:48,908 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:48" (1/1) ... [2023-12-02 13:31:48,909 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:48" (1/1) ... [2023-12-02 13:31:48,915 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:48" (1/1) ... [2023-12-02 13:31:48,919 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:48" (1/1) ... [2023-12-02 13:31:48,921 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:48" (1/1) ... [2023-12-02 13:31:48,923 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:48" (1/1) ... [2023-12-02 13:31:48,926 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:31:48,927 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:31:48,927 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:31:48,928 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:31:48,929 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:48" (1/1) ... [2023-12-02 13:31:48,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:31:48,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:31:48,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:31:48,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:31:49,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:31:49,001 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 13:31:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 13:31:49,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:31:49,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:31:49,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:31:49,080 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:31:49,083 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:31:49,302 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:31:49,416 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:31:49,416 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:31:49,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:31:49 BoogieIcfgContainer [2023-12-02 13:31:49,419 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:31:49,422 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:31:49,423 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:31:49,426 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:31:49,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:31:48" (1/3) ... [2023-12-02 13:31:49,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d89af9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:31:49, skipping insertion in model container [2023-12-02 13:31:49,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:48" (2/3) ... [2023-12-02 13:31:49,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d89af9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:31:49, skipping insertion in model container [2023-12-02 13:31:49,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:31:49" (3/3) ... [2023-12-02 13:31:49,429 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-40.i [2023-12-02 13:31:49,446 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:31:49,446 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:31:49,496 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:31:49,503 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@72a9d98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:31:49,503 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:31:49,507 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-02 13:31:49,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-02 13:31:49,517 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:31:49,518 INFO L195 NwaCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:31:49,518 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:31:49,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:31:49,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1878397178, now seen corresponding path program 1 times [2023-12-02 13:31:49,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:31:49,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232106853] [2023-12-02 13:31:49,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:31:49,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:31:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:31:50,473 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-12-02 13:31:50,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:31:50,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232106853] [2023-12-02 13:31:50,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232106853] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:31:50,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551789247] [2023-12-02 13:31:50,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:31:50,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:31:50,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:31:50,482 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:31:50,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 13:31:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:31:50,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 13:31:50,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:31:51,587 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 88 proven. 16 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 13:31:51,588 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:31:51,955 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-12-02 13:31:51,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551789247] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:31:51,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [85364868] [2023-12-02 13:31:51,984 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2023-12-02 13:31:51,984 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:31:51,988 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:31:51,994 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:31:51,994 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:31:54,060 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 28 for LOIs [2023-12-02 13:31:54,063 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:31:56,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [85364868] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:31:56,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:31:56,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [5, 5, 5] total 25 [2023-12-02 13:31:56,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047134617] [2023-12-02 13:31:56,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:31:56,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-02 13:31:56,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:31:56,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-02 13:31:56,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2023-12-02 13:31:56,191 INFO L87 Difference]: Start difference. First operand has 31 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 20 states, 13 states have (on average 1.0) internal successors, (13), 12 states have internal predecessors, (13), 9 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 9 states have call successors, (14) [2023-12-02 13:31:57,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:31:57,988 INFO L93 Difference]: Finished difference Result 103 states and 139 transitions. [2023-12-02 13:31:57,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-02 13:31:57,990 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 13 states have (on average 1.0) internal successors, (13), 12 states have internal predecessors, (13), 9 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 9 states have call successors, (14) Word has length 54 [2023-12-02 13:31:57,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:31:57,996 INFO L225 Difference]: With dead ends: 103 [2023-12-02 13:31:57,996 INFO L226 Difference]: Without dead ends: 73 [2023-12-02 13:31:57,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 140 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=438, Invalid=1368, Unknown=0, NotChecked=0, Total=1806 [2023-12-02 13:31:58,002 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 34 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:31:58,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 127 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 13:31:58,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-12-02 13:31:58,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 72. [2023-12-02 13:31:58,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 33 states have (on average 1.0303030303030303) internal successors, (34), 33 states have internal predecessors, (34), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-02 13:31:58,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 90 transitions. [2023-12-02 13:31:58,045 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 90 transitions. Word has length 54 [2023-12-02 13:31:58,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:31:58,045 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 90 transitions. [2023-12-02 13:31:58,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 13 states have (on average 1.0) internal successors, (13), 12 states have internal predecessors, (13), 9 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 9 states have call successors, (14) [2023-12-02 13:31:58,046 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 90 transitions. [2023-12-02 13:31:58,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-02 13:31:58,049 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:31:58,050 INFO L195 NwaCegarLoop]: trace histogram [28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-12-02 13:31:58,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:31:58,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:31:58,251 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:31:58,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:31:58,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1661204343, now seen corresponding path program 1 times [2023-12-02 13:31:58,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:31:58,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761735545] [2023-12-02 13:31:58,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:31:58,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:31:58,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:31:58,997 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 33 proven. 8 refuted. 0 times theorem prover too weak. 739 trivial. 0 not checked. [2023-12-02 13:31:58,997 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:31:58,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761735545] [2023-12-02 13:31:58,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761735545] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:31:58,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194668278] [2023-12-02 13:31:58,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:31:58,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:31:58,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:31:59,000 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:31:59,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 13:31:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:31:59,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 13:31:59,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:31:59,803 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 380 proven. 15 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2023-12-02 13:31:59,804 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:32:00,196 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 33 proven. 8 refuted. 0 times theorem prover too weak. 739 trivial. 0 not checked. [2023-12-02 13:32:00,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194668278] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:32:00,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2020594860] [2023-12-02 13:32:00,201 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2023-12-02 13:32:00,201 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:32:00,201 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:32:00,202 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:32:00,202 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:32:07,853 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 6 for LOIs [2023-12-02 13:32:07,855 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:32:11,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2020594860] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:32:11,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:32:11,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [5, 9, 5] total 30 [2023-12-02 13:32:11,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732153299] [2023-12-02 13:32:11,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:32:11,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-02 13:32:11,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:32:11,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-02 13:32:11,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=728, Unknown=0, NotChecked=0, Total=870 [2023-12-02 13:32:11,819 INFO L87 Difference]: Start difference. First operand 72 states and 90 transitions. Second operand has 21 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 13 states have internal predecessors, (15), 9 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 9 states have call successors, (14) [2023-12-02 13:32:13,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:32:13,618 INFO L93 Difference]: Finished difference Result 72 states and 90 transitions. [2023-12-02 13:32:13,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-02 13:32:13,619 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 13 states have internal predecessors, (15), 9 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 9 states have call successors, (14) Word has length 107 [2023-12-02 13:32:13,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:32:13,620 INFO L225 Difference]: With dead ends: 72 [2023-12-02 13:32:13,620 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 13:32:13,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 291 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=226, Invalid=896, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 13:32:13,623 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 25 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 13:32:13,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 44 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 13:32:13,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 13:32:13,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 13:32:13,625 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) [2023-12-02 13:32:13,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 13:32:13,625 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 107 [2023-12-02 13:32:13,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:32:13,625 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 13:32:13,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 13 states have internal predecessors, (15), 9 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 9 states have call successors, (14) [2023-12-02 13:32:13,626 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 13:32:13,626 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 13:32:13,628 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 13:32:13,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 13:32:13,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:32:13,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 13:32:15,395 INFO L899 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2023-12-02 13:32:15,396 INFO L895 garLoopResultBuilder]: At program point L60(line 60) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|)) (.cse1 (<= (mod ~var_1_8~0 256) 0)) (.cse2 (<= (mod ~var_1_10~0 256) 127))) (or (let ((.cse3 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) .cse0 (= ~var_1_9~0 8) (= ~var_1_7~0 1) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) .cse1 (= (+ 5 ~var_1_13~0) 0) (= ~var_1_12~0 10) (= (select |#valid| 1) 1) (= ~isInitial~0 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= 25 ~var_1_14~0) .cse2 (= (select .cse3 0) 48) (= 29 (select |#length| 2)) (= ~var_1_1~0 50) (= (select .cse3 1) 0))) (and (= |ULTIMATE.start_property_#res#1| 1) .cse0 (<= ~var_1_14~0 126) (<= 0 (+ 127 ~var_1_13~0)) .cse1 (= ~isInitial~0 0) .cse2 (<= ~var_1_13~0 126) (<= 0 (+ 127 ~var_1_14~0))))) [2023-12-02 13:32:15,396 INFO L895 garLoopResultBuilder]: At program point L60-1(line 60) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|)) (.cse1 (<= (mod ~var_1_8~0 256) 0)) (.cse2 (<= (mod ~var_1_10~0 256) 127))) (or (let ((.cse3 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) .cse0 (= ~var_1_9~0 8) (= ~var_1_7~0 1) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) .cse1 (= (+ 5 ~var_1_13~0) 0) (= ~var_1_12~0 10) (= (select |#valid| 1) 1) (= ~isInitial~0 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= 25 ~var_1_14~0) .cse2 (= (select .cse3 0) 48) (= 29 (select |#length| 2)) (= ~var_1_1~0 50) (= (select .cse3 1) 0))) (and (= |ULTIMATE.start_property_#res#1| 1) .cse0 (<= ~var_1_14~0 126) (<= 0 (+ 127 ~var_1_13~0)) .cse1 (= ~isInitial~0 0) .cse2 (<= ~var_1_13~0 126) (<= 0 (+ 127 ~var_1_14~0))))) [2023-12-02 13:32:15,396 INFO L895 garLoopResultBuilder]: At program point L52(line 52) the Hoare annotation is: (and (<= (mod ~var_1_12~0 256) 254) (<= (mod ~var_1_8~0 256) 0) (<= (mod ~var_1_11~0 256) 127) (let ((.cse0 (<= 1 |#StackHeapBarrier|))) (or (and (= |ULTIMATE.start_property_#res#1| 1) .cse0 (<= ~var_1_14~0 126) (<= 0 (+ 127 ~var_1_13~0)) (= ~isInitial~0 0) (<= ~var_1_13~0 126) (<= 0 (+ 127 ~var_1_14~0))) (let ((.cse1 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) .cse0 (= ~var_1_9~0 8) (= ~var_1_7~0 1) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (+ 5 ~var_1_13~0) 0) (= ~var_1_12~0 10) (= (select |#valid| 1) 1) (= ~isInitial~0 1) (= 16 ~var_1_10~0) (= 64 ~var_1_11~0) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= 25 ~var_1_14~0) (= ~var_1_8~0 0) (= (select .cse1 0) 48) (= 29 (select |#length| 2)) (= ~var_1_1~0 50) (= (select .cse1 1) 0))))) (<= (mod ~var_1_10~0 256) 127)) [2023-12-02 13:32:15,396 INFO L899 garLoopResultBuilder]: For program point L52-1(line 52) no Hoare annotation was computed. [2023-12-02 13:32:15,397 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-02 13:32:15,397 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-02 13:32:15,397 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-02 13:32:15,397 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2023-12-02 13:32:15,397 INFO L895 garLoopResultBuilder]: At program point L57(line 57) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|)) (.cse1 (<= (mod ~var_1_8~0 256) 0))) (or (let ((.cse2 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) .cse0 (= ~var_1_9~0 8) (= ~var_1_7~0 1) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) .cse1 (= (+ 5 ~var_1_13~0) 0) (= ~var_1_12~0 10) (= (select |#valid| 1) 1) (= ~isInitial~0 1) (= 64 ~var_1_11~0) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= 25 ~var_1_14~0) (= (select .cse2 0) 48) (= 29 (select |#length| 2)) (= ~var_1_1~0 50) (= (select .cse2 1) 0))) (and (= |ULTIMATE.start_property_#res#1| 1) .cse0 (<= ~var_1_14~0 126) (<= 0 (+ 127 ~var_1_13~0)) .cse1 (= ~isInitial~0 0) (<= ~var_1_13~0 126) (<= 0 (+ 127 ~var_1_14~0))))) [2023-12-02 13:32:15,397 INFO L895 garLoopResultBuilder]: At program point L57-1(line 57) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|)) (.cse1 (<= (mod ~var_1_8~0 256) 0))) (or (let ((.cse2 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) .cse0 (= ~var_1_9~0 8) (= ~var_1_7~0 1) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) .cse1 (= (+ 5 ~var_1_13~0) 0) (= ~var_1_12~0 10) (= (select |#valid| 1) 1) (= ~isInitial~0 1) (= 64 ~var_1_11~0) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= 25 ~var_1_14~0) (= (select .cse2 0) 48) (= 29 (select |#length| 2)) (= ~var_1_1~0 50) (= (select .cse2 1) 0))) (and (= |ULTIMATE.start_property_#res#1| 1) .cse0 (<= ~var_1_14~0 126) (<= 0 (+ 127 ~var_1_13~0)) .cse1 (= ~isInitial~0 0) (<= ~var_1_13~0 126) (<= 0 (+ 127 ~var_1_14~0))))) [2023-12-02 13:32:15,398 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-02 13:32:15,398 INFO L895 garLoopResultBuilder]: At program point L49(line 49) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|))) (or (and (= |ULTIMATE.start_property_#res#1| 1) .cse0 (<= ~var_1_14~0 126) (<= (mod ~var_1_12~0 256) 254) (<= 0 (+ 127 ~var_1_13~0)) (<= (mod ~var_1_8~0 256) 0) (<= (mod ~var_1_11~0 256) 127) (= ~isInitial~0 0) (<= (mod ~var_1_10~0 256) 127) (<= ~var_1_13~0 126) (<= 0 (+ 127 ~var_1_14~0))) (let ((.cse1 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) .cse0 (= ~var_1_9~0 8) (= ~var_1_7~0 1) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (+ 5 ~var_1_13~0) 0) (= ~var_1_4~0 (/ 513.0 2.0)) (= ~var_1_12~0 10) (= (select |#valid| 1) 1) (= ~isInitial~0 1) (= 16 ~var_1_10~0) (= 64 ~var_1_11~0) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= 25 ~var_1_14~0) (= ~var_1_8~0 0) (= (select .cse1 0) 48) (= 29 (select |#length| 2)) (= ~var_1_1~0 50) (= (select .cse1 1) 0))))) [2023-12-02 13:32:15,398 INFO L895 garLoopResultBuilder]: At program point L49-1(line 49) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|))) (or (and (= |ULTIMATE.start_property_#res#1| 1) .cse0 (<= ~var_1_14~0 126) (<= (mod ~var_1_12~0 256) 254) (<= 0 (+ 127 ~var_1_13~0)) (<= (mod ~var_1_8~0 256) 0) (<= (mod ~var_1_11~0 256) 127) (= ~isInitial~0 0) (<= (mod ~var_1_10~0 256) 127) (<= ~var_1_13~0 126) (<= 0 (+ 127 ~var_1_14~0))) (let ((.cse1 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) .cse0 (= ~var_1_9~0 8) (= ~var_1_7~0 1) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (+ 5 ~var_1_13~0) 0) (= ~var_1_4~0 (/ 513.0 2.0)) (= ~var_1_12~0 10) (= (select |#valid| 1) 1) (= ~isInitial~0 1) (= 16 ~var_1_10~0) (= 64 ~var_1_11~0) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= 25 ~var_1_14~0) (= ~var_1_8~0 0) (= (select .cse1 0) 48) (= 29 (select |#length| 2)) (= ~var_1_1~0 50) (= (select .cse1 1) 0))))) [2023-12-02 13:32:15,399 INFO L895 garLoopResultBuilder]: At program point L78-2(lines 78 84) the Hoare annotation is: (let ((.cse1 (= ~isInitial~0 0))) (and (<= (mod ~var_1_12~0 256) 254) (or (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse0 0) 48) (= 29 (select |#length| 2)) (= (select .cse0 1) 0))) .cse1) (<= (mod ~var_1_8~0 256) 0) (<= (mod ~var_1_11~0 256) 127) (let ((.cse2 (<= 1 |#StackHeapBarrier|))) (or (and .cse2 (= ~var_1_9~0 8) (= ~var_1_7~0 1) (= (+ 5 ~var_1_13~0) 0) (= (/ 39.0 5.0) ~var_1_3~0) (= ~var_1_4~0 (/ 513.0 2.0)) (= ~var_1_12~0 10) (= ~isInitial~0 1) (= 16 ~var_1_10~0) (= 64 ~var_1_11~0) (= 25 ~var_1_14~0) (= ~var_1_8~0 0) (= ~var_1_2~0 (/ 49.0 5.0)) (= ~var_1_1~0 50)) (and (= |ULTIMATE.start_property_#res#1| 1) .cse2 (<= ~var_1_14~0 126) (<= 0 (+ 127 ~var_1_13~0)) .cse1 (<= ~var_1_13~0 126) (<= 0 (+ 127 ~var_1_14~0))))) (<= (mod ~var_1_10~0 256) 127))) [2023-12-02 13:32:15,399 INFO L895 garLoopResultBuilder]: At program point L66(line 66) the Hoare annotation is: (and (let ((.cse3 (<= 1 |#StackHeapBarrier|)) (.cse0 (<= (mod ~var_1_12~0 256) 254)) (.cse1 (<= (mod ~var_1_8~0 256) 0)) (.cse2 (<= (mod ~var_1_11~0 256) 127)) (.cse4 (<= (mod ~var_1_10~0 256) 127))) (or (and .cse0 .cse1 .cse2 (exists ((v_~var_1_14~0_25 Int)) (and (= |ULTIMATE.start_property_#res#1| 1) .cse3 (<= 0 (+ 127 ~var_1_13~0)) (<= v_~var_1_14~0_25 126) (= ~isInitial~0 0) (<= ~var_1_13~0 126) (<= 0 (+ v_~var_1_14~0_25 127)))) .cse4) (let ((.cse5 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) .cse3 (= ~var_1_9~0 8) (= ~var_1_7~0 1) .cse0 (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) .cse1 (= (+ 5 ~var_1_13~0) 0) .cse2 (= (select |#valid| 1) 1) (= ~isInitial~0 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) .cse4 (= (select .cse5 0) 48) (= 29 (select |#length| 2)) (= ~var_1_1~0 50) (= (select .cse5 1) 0))))) (<= ~var_1_14~0 127) (<= 0 (+ 128 ~var_1_14~0))) [2023-12-02 13:32:15,399 INFO L895 garLoopResultBuilder]: At program point L66-1(line 66) the Hoare annotation is: (let ((.cse4 (<= 1 |#StackHeapBarrier|)) (.cse0 (<= (mod ~var_1_12~0 256) 254)) (.cse1 (<= ~var_1_14~0 127)) (.cse2 (<= (mod ~var_1_8~0 256) 0)) (.cse3 (<= (mod ~var_1_11~0 256) 127)) (.cse5 (<= (mod ~var_1_10~0 256) 127)) (.cse6 (<= 0 (+ 127 ~var_1_14~0)))) (or (and .cse0 .cse1 .cse2 .cse3 (exists ((v_~var_1_14~0_25 Int)) (and (= |ULTIMATE.start_property_#res#1| 1) .cse4 (<= 0 (+ 127 ~var_1_13~0)) (<= v_~var_1_14~0_25 126) (= ~isInitial~0 0) (<= ~var_1_13~0 126) (<= 0 (+ v_~var_1_14~0_25 127)))) .cse5 .cse6) (let ((.cse7 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) .cse4 (= ~var_1_9~0 8) (= ~var_1_7~0 1) .cse0 (= 2 (select |#length| 1)) .cse1 (= (select |#valid| 3) 1) .cse2 (= (+ 5 ~var_1_13~0) 0) .cse3 (= (select |#valid| 1) 1) (= ~isInitial~0 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) .cse5 (= (select .cse7 0) 48) (= 29 (select |#length| 2)) (= ~var_1_1~0 50) (= (select .cse7 1) 0) .cse6)))) [2023-12-02 13:32:15,400 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 13:32:15,400 INFO L899 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2023-12-02 13:32:15,400 INFO L895 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|))) (or (let ((.cse1 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) .cse0 (= ~var_1_9~0 8) (= ~var_1_7~0 1) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (+ 5 ~var_1_13~0) 0) (= ~var_1_12~0 10) (= (select |#valid| 1) 1) (= ~isInitial~0 1) (= 16 ~var_1_10~0) (= 64 ~var_1_11~0) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= 25 ~var_1_14~0) (= (select .cse1 0) 48) (= 29 (select |#length| 2)) (= ~var_1_1~0 50) (= (select .cse1 1) 0))) (and (= |ULTIMATE.start_property_#res#1| 1) .cse0 (<= ~var_1_14~0 126) (<= 0 (+ 127 ~var_1_13~0)) (= ~isInitial~0 0) (<= ~var_1_13~0 126) (<= 0 (+ 127 ~var_1_14~0))))) [2023-12-02 13:32:15,400 INFO L895 garLoopResultBuilder]: At program point L54-1(line 54) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|))) (or (let ((.cse1 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) .cse0 (= ~var_1_9~0 8) (= ~var_1_7~0 1) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (+ 5 ~var_1_13~0) 0) (= ~var_1_12~0 10) (= (select |#valid| 1) 1) (= ~isInitial~0 1) (= 16 ~var_1_10~0) (= 64 ~var_1_11~0) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= 25 ~var_1_14~0) (= (select .cse1 0) 48) (= 29 (select |#length| 2)) (= ~var_1_1~0 50) (= (select .cse1 1) 0))) (and (= |ULTIMATE.start_property_#res#1| 1) .cse0 (<= ~var_1_14~0 126) (<= 0 (+ 127 ~var_1_13~0)) (= ~isInitial~0 0) (<= ~var_1_13~0 126) (<= 0 (+ 127 ~var_1_14~0))))) [2023-12-02 13:32:15,400 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2023-12-02 13:32:15,400 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 13:32:15,401 INFO L899 garLoopResultBuilder]: For program point L67(lines 45 68) no Hoare annotation was computed. [2023-12-02 13:32:15,401 INFO L895 garLoopResultBuilder]: At program point L63(line 63) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|)) (.cse1 (<= (mod ~var_1_8~0 256) 0)) (.cse2 (<= (mod ~var_1_11~0 256) 127)) (.cse3 (<= (mod ~var_1_10~0 256) 127))) (or (and (= |ULTIMATE.start_property_#res#1| 1) .cse0 (<= ~var_1_14~0 126) (<= 0 (+ 127 ~var_1_13~0)) .cse1 .cse2 (= ~isInitial~0 0) .cse3 (<= ~var_1_13~0 126) (<= 0 (+ 127 ~var_1_14~0))) (let ((.cse4 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) .cse0 (= ~var_1_9~0 8) (= ~var_1_7~0 1) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) .cse1 (= (+ 5 ~var_1_13~0) 0) .cse2 (= (select |#valid| 1) 1) (= ~isInitial~0 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= 25 ~var_1_14~0) .cse3 (= (select .cse4 0) 48) (= 29 (select |#length| 2)) (= ~var_1_1~0 50) (= (select .cse4 1) 0))))) [2023-12-02 13:32:15,401 INFO L895 garLoopResultBuilder]: At program point L63-1(line 63) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|)) (.cse1 (<= (mod ~var_1_8~0 256) 0)) (.cse2 (<= (mod ~var_1_11~0 256) 127)) (.cse3 (<= (mod ~var_1_10~0 256) 127))) (or (and (= |ULTIMATE.start_property_#res#1| 1) .cse0 (<= ~var_1_14~0 126) (<= 0 (+ 127 ~var_1_13~0)) .cse1 .cse2 (= ~isInitial~0 0) .cse3 (<= ~var_1_13~0 126) (<= 0 (+ 127 ~var_1_14~0))) (let ((.cse4 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) .cse0 (= ~var_1_9~0 8) (= ~var_1_7~0 1) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) .cse1 (= (+ 5 ~var_1_13~0) 0) .cse2 (= (select |#valid| 1) 1) (= ~isInitial~0 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= 25 ~var_1_14~0) .cse3 (= (select .cse4 0) 48) (= 29 (select |#length| 2)) (= ~var_1_1~0 50) (= (select .cse4 1) 0))))) [2023-12-02 13:32:15,401 INFO L899 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2023-12-02 13:32:15,402 INFO L895 garLoopResultBuilder]: At program point L47(line 47) the Hoare annotation is: (let ((.cse0 (= ~isInitial~0 0))) (and (<= (mod ~var_1_12~0 256) 254) (exists ((v_~var_1_2~0_11 Real)) (or (and (= (/ 49.0 5.0) v_~var_1_2~0_11) (= (/ 39.0 5.0) ~var_1_3~0) (= ~var_1_4~0 (/ 513.0 2.0)) (= ~var_1_8~0 0)) .cse0)) (<= (mod ~var_1_11~0 256) 127) (<= (mod ~var_1_10~0 256) 127) (let ((.cse1 (<= 1 |#StackHeapBarrier|))) (or (let ((.cse2 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) .cse1 (= ~var_1_9~0 8) (= ~var_1_7~0 1) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (+ 5 ~var_1_13~0) 0) (= ~var_1_12~0 10) (= (select |#valid| 1) 1) (= ~isInitial~0 1) (= 16 ~var_1_10~0) (= 64 ~var_1_11~0) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= 25 ~var_1_14~0) (= (select .cse2 0) 48) (= 29 (select |#length| 2)) (= ~var_1_1~0 50) (= (select .cse2 1) 0))) (and (= |ULTIMATE.start_property_#res#1| 1) .cse1 (<= ~var_1_14~0 126) (<= 0 (+ 127 ~var_1_13~0)) (<= (mod ~var_1_8~0 256) 0) .cse0 (<= ~var_1_13~0 126) (<= 0 (+ 127 ~var_1_14~0))))))) [2023-12-02 13:32:15,402 INFO L899 garLoopResultBuilder]: For program point L47-1(line 47) no Hoare annotation was computed. [2023-12-02 13:32:15,402 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-02 13:32:15,402 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-02 13:32:15,404 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-02 13:32:15,406 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:32:15,420 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-12-02 13:32:15,420 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-12-02 13:32:15,421 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-12-02 13:32:15,421 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-12-02 13:32:15,421 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-12-02 13:32:15,421 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-12-02 13:32:15,421 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-12-02 13:32:15,422 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-12-02 13:32:15,422 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-12-02 13:32:15,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:32:15 BoogieIcfgContainer [2023-12-02 13:32:15,424 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:32:15,424 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:32:15,425 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:32:15,425 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:32:15,425 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:31:49" (3/4) ... [2023-12-02 13:32:15,427 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 13:32:15,430 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-12-02 13:32:15,435 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-12-02 13:32:15,436 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-12-02 13:32:15,436 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 13:32:15,436 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 13:32:15,460 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((var_1_12 % 256) <= 254) && ((var_1_8 % 256) <= 0)) && ((var_1_11 % 256) <= 127)) && ((((((((((((((var_1_9 == 8) && (var_1_7 == 1)) && ((5 + var_1_13) == 0)) && (39/5 == var_1_3)) && (var_1_4 == 513/2)) && (var_1_12 == 10)) && (isInitial == 1)) && (16 == var_1_10)) && (64 == var_1_11)) && (25 == var_1_14)) && (var_1_8 == 0)) && (var_1_2 == 49/5)) && (var_1_1 == 50)) || ((((((\result == 1) && (var_1_14 <= 126)) && (0 <= (127 + var_1_13))) && (isInitial == 0)) && (var_1_13 <= 126)) && (0 <= (127 + var_1_14))))) && ((var_1_10 % 256) <= 127)) [2023-12-02 13:32:15,478 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((var_1_12 % 256) <= 254) && ((var_1_8 % 256) <= 0)) && ((var_1_11 % 256) <= 127)) && ((((((((((((((var_1_9 == 8) && (var_1_7 == 1)) && ((5 + var_1_13) == 0)) && (39/5 == var_1_3)) && (var_1_4 == 513/2)) && (var_1_12 == 10)) && (isInitial == 1)) && (16 == var_1_10)) && (64 == var_1_11)) && (25 == var_1_14)) && (var_1_8 == 0)) && (var_1_2 == 49/5)) && (var_1_1 == 50)) || ((((((\result == 1) && (var_1_14 <= 126)) && (0 <= (127 + var_1_13))) && (isInitial == 0)) && (var_1_13 <= 126)) && (0 <= (127 + var_1_14))))) && ((var_1_10 % 256) <= 127)) [2023-12-02 13:32:15,524 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 13:32:15,525 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 13:32:15,525 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:32:15,526 INFO L158 Benchmark]: Toolchain (without parser) took 26936.04ms. Allocated memory was 144.7MB in the beginning and 484.4MB in the end (delta: 339.7MB). Free memory was 101.9MB in the beginning and 290.2MB in the end (delta: -188.3MB). Peak memory consumption was 152.3MB. Max. memory is 16.1GB. [2023-12-02 13:32:15,526 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 98.6MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:32:15,526 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.78ms. Allocated memory is still 144.7MB. Free memory was 101.5MB in the beginning and 90.1MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 13:32:15,527 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.66ms. Allocated memory is still 144.7MB. Free memory was 90.1MB in the beginning and 87.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 13:32:15,527 INFO L158 Benchmark]: Boogie Preprocessor took 34.37ms. Allocated memory is still 144.7MB. Free memory was 87.6MB in the beginning and 86.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:32:15,528 INFO L158 Benchmark]: RCFGBuilder took 491.49ms. Allocated memory was 144.7MB in the beginning and 178.3MB in the end (delta: 33.6MB). Free memory was 86.1MB in the beginning and 147.7MB in the end (delta: -61.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-02 13:32:15,528 INFO L158 Benchmark]: TraceAbstraction took 26001.46ms. Allocated memory was 178.3MB in the beginning and 484.4MB in the end (delta: 306.2MB). Free memory was 147.7MB in the beginning and 295.4MB in the end (delta: -147.7MB). Peak memory consumption was 290.6MB. Max. memory is 16.1GB. [2023-12-02 13:32:15,529 INFO L158 Benchmark]: Witness Printer took 100.41ms. Allocated memory is still 484.4MB. Free memory was 295.4MB in the beginning and 290.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 13:32:15,531 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 98.6MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.78ms. Allocated memory is still 144.7MB. Free memory was 101.5MB in the beginning and 90.1MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.66ms. Allocated memory is still 144.7MB. Free memory was 90.1MB in the beginning and 87.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.37ms. Allocated memory is still 144.7MB. Free memory was 87.6MB in the beginning and 86.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 491.49ms. Allocated memory was 144.7MB in the beginning and 178.3MB in the end (delta: 33.6MB). Free memory was 86.1MB in the beginning and 147.7MB in the end (delta: -61.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 26001.46ms. Allocated memory was 178.3MB in the beginning and 484.4MB in the end (delta: 306.2MB). Free memory was 147.7MB in the beginning and 295.4MB in the end (delta: -147.7MB). Peak memory consumption was 290.6MB. Max. memory is 16.1GB. * Witness Printer took 100.41ms. Allocated memory is still 484.4MB. Free memory was 295.4MB in the beginning and 290.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated * 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: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 25.9s, OverallIterations: 2, TraceHistogramMax: 28, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 171 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 125 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 648 IncrementalHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 46 mSDtfsCounter, 648 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 511 GetRequests, 431 SyntacticMatches, 7 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 8.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=1, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 57 PreInvPairs, 87 NumberOfFragments, 1958 HoareAnnotationTreeSize, 57 FomulaSimplifications, 2605 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 16 FomulaSimplificationsInter, 2510 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 322 NumberOfCodeBlocks, 322 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 477 ConstructedInterpolants, 0 QuantifiedInterpolants, 1405 SizeOfPredicates, 37 NumberOfNonLiveVariables, 517 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 6 InterpolantComputations, 0 PerfectInterpolantSequences, 2823/2886 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: OVERALL_TIME: 9.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 148, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 59, TOOLS_POST_TIME: 2.6s, TOOLS_POST_CALL_APPLICATIONS: 168, TOOLS_POST_CALL_TIME: 3.0s, TOOLS_POST_RETURN_APPLICATIONS: 140, TOOLS_POST_RETURN_TIME: 2.2s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 367, TOOLS_QUANTIFIERELIM_TIME: 7.7s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.4s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 295, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 183, DOMAIN_JOIN_TIME: 1.5s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 148, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 1.5s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.5s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 140, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.1s, DAG_COMPRESSION_PROCESSED_NODES: 4456, DAG_COMPRESSION_RETAINED_NODES: 265, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: ((((((var_1_12 % 256) <= 254) && ((var_1_8 % 256) <= 0)) && ((var_1_11 % 256) <= 127)) && ((((((((((((((var_1_9 == 8) && (var_1_7 == 1)) && ((5 + var_1_13) == 0)) && (39/5 == var_1_3)) && (var_1_4 == 513/2)) && (var_1_12 == 10)) && (isInitial == 1)) && (16 == var_1_10)) && (64 == var_1_11)) && (25 == var_1_14)) && (var_1_8 == 0)) && (var_1_2 == 49/5)) && (var_1_1 == 50)) || ((((((\result == 1) && (var_1_14 <= 126)) && (0 <= (127 + var_1_13))) && (isInitial == 0)) && (var_1_13 <= 126)) && (0 <= (127 + var_1_14))))) && ((var_1_10 % 256) <= 127)) RESULT: Ultimate proved your program to be correct! [2023-12-02 13:32:15,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08946db6-55c1-4602-93cd-6020b1ad1ba5/bin/utaipan-verify-nQ1chXbOIh/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