./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2354c4d30c0335eb0a6c6e03cf8d087a440768412264986840e048ded8afea74 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:35:33,122 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:35:33,193 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-23 20:35:33,199 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:35:33,200 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:35:33,227 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:35:33,227 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:35:33,228 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:35:33,229 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:35:33,229 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:35:33,230 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:35:33,231 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:35:33,231 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:35:33,232 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:35:33,233 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:35:33,233 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:35:33,234 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:35:33,234 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:35:33,235 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:35:33,236 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:35:33,236 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:35:33,237 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:35:33,238 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:35:33,239 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:35:33,239 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:35:33,240 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:35:33,240 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:35:33,241 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:35:33,241 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:35:33,245 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:35:33,246 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:35:33,247 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:35:33,248 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:35:33,248 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:35:33,248 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:35:33,249 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:35:33,249 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:35:33,249 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:35:33,249 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:35:33,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:33,250 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:35:33,250 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:35:33,251 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:35:33,251 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:35:33,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:35:33,252 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:35:33,252 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:35:33,252 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:35:33,253 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:35:33,253 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_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2354c4d30c0335eb0a6c6e03cf8d087a440768412264986840e048ded8afea74 [2023-11-23 20:35:33,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:35:33,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:35:33,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:35:33,661 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:35:33,661 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:35:33,663 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2023-11-23 20:35:36,717 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:35:36,995 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:35:36,995 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2023-11-23 20:35:37,010 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/data/aa5fbb7c8/cf148438321a4c5b80cdf2004fbae3cb/FLAG8e16831b0 [2023-11-23 20:35:37,025 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/data/aa5fbb7c8/cf148438321a4c5b80cdf2004fbae3cb [2023-11-23 20:35:37,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:35:37,030 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:35:37,031 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:37,031 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:35:37,037 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:35:37,038 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:37" (1/1) ... [2023-11-23 20:35:37,039 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d6ea72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:37, skipping insertion in model container [2023-11-23 20:35:37,040 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:37" (1/1) ... [2023-11-23 20:35:37,087 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:35:37,455 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:37,473 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:35:37,548 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:37,574 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:35:37,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:37 WrapperNode [2023-11-23 20:35:37,574 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:37,575 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:37,576 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:35:37,576 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:35:37,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:37" (1/1) ... [2023-11-23 20:35:37,595 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:37" (1/1) ... [2023-11-23 20:35:37,653 INFO L138 Inliner]: procedures = 32, calls = 49, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 508 [2023-11-23 20:35:37,659 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:37,660 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:35:37,661 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:35:37,661 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:35:37,671 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:37" (1/1) ... [2023-11-23 20:35:37,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:37" (1/1) ... [2023-11-23 20:35:37,677 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:37" (1/1) ... [2023-11-23 20:35:37,678 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:37" (1/1) ... [2023-11-23 20:35:37,699 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:37" (1/1) ... [2023-11-23 20:35:37,705 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:37" (1/1) ... [2023-11-23 20:35:37,709 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:37" (1/1) ... [2023-11-23 20:35:37,712 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:37" (1/1) ... [2023-11-23 20:35:37,718 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:35:37,720 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:35:37,720 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:35:37,720 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:35:37,721 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:37" (1/1) ... [2023-11-23 20:35:37,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:37,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:37,784 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:35:37,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:35:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2023-11-23 20:35:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2023-11-23 20:35:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:35:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2023-11-23 20:35:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2023-11-23 20:35:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-11-23 20:35:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-11-23 20:35:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2023-11-23 20:35:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2023-11-23 20:35:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:35:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:35:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:35:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2023-11-23 20:35:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2023-11-23 20:35:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:35:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:35:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2023-11-23 20:35:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2023-11-23 20:35:37,978 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:35:37,980 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:35:38,682 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:35:38,896 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:35:38,897 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:35:38,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:38 BoogieIcfgContainer [2023-11-23 20:35:38,899 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:35:38,904 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:35:38,905 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:35:38,908 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:35:38,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:35:37" (1/3) ... [2023-11-23 20:35:38,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e05a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:38, skipping insertion in model container [2023-11-23 20:35:38,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:37" (2/3) ... [2023-11-23 20:35:38,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e05a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:38, skipping insertion in model container [2023-11-23 20:35:38,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:38" (3/3) ... [2023-11-23 20:35:38,912 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2023-11-23 20:35:38,932 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:35:38,932 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 20:35:38,987 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:35:38,994 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;@25927d06, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:35:38,995 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 20:35:39,004 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 109 states have (on average 1.5412844036697249) internal successors, (168), 111 states have internal predecessors, (168), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-23 20:35:39,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-23 20:35:39,028 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:39,029 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:39,034 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-23 20:35:39,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:39,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1895278765, now seen corresponding path program 1 times [2023-11-23 20:35:39,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:39,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142561788] [2023-11-23 20:35:39,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:39,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:39,844 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:35:39,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:35:39,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142561788] [2023-11-23 20:35:39,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142561788] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:39,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:39,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:35:39,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482082237] [2023-11-23 20:35:39,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:39,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:35:39,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:35:39,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:35:39,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:35:39,912 INFO L87 Difference]: Start difference. First operand has 150 states, 109 states have (on average 1.5412844036697249) internal successors, (168), 111 states have internal predecessors, (168), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 20:35:40,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:40,135 INFO L93 Difference]: Finished difference Result 259 states and 409 transitions. [2023-11-23 20:35:40,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:35:40,139 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2023-11-23 20:35:40,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:40,160 INFO L225 Difference]: With dead ends: 259 [2023-11-23 20:35:40,160 INFO L226 Difference]: Without dead ends: 255 [2023-11-23 20:35:40,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:35:40,170 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 107 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:40,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 652 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:35:40,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-11-23 20:35:40,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2023-11-23 20:35:40,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 189 states have (on average 1.5396825396825398) internal successors, (291), 190 states have internal predecessors, (291), 57 states have call successors, (57), 7 states have call predecessors, (57), 7 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2023-11-23 20:35:40,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 405 transitions. [2023-11-23 20:35:40,269 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 405 transitions. Word has length 55 [2023-11-23 20:35:40,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:40,271 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 405 transitions. [2023-11-23 20:35:40,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 20:35:40,271 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 405 transitions. [2023-11-23 20:35:40,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-23 20:35:40,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:40,281 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:40,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:35:40,282 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-23 20:35:40,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:40,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1529074199, now seen corresponding path program 1 times [2023-11-23 20:35:40,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:40,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745872794] [2023-11-23 20:35:40,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:40,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:40,896 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-23 20:35:40,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:35:40,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745872794] [2023-11-23 20:35:40,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745872794] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:35:40,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396555960] [2023-11-23 20:35:40,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:40,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:35:40,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:40,906 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:35:40,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 20:35:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:41,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 20:35:41,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:35:41,260 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-23 20:35:41,260 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:35:41,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396555960] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:41,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 20:35:41,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2023-11-23 20:35:41,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856892983] [2023-11-23 20:35:41,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:41,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:35:41,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:35:41,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:35:41,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-23 20:35:41,264 INFO L87 Difference]: Start difference. First operand 255 states and 405 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 20:35:41,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:41,469 INFO L93 Difference]: Finished difference Result 490 states and 769 transitions. [2023-11-23 20:35:41,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 20:35:41,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 106 [2023-11-23 20:35:41,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:41,473 INFO L225 Difference]: With dead ends: 490 [2023-11-23 20:35:41,473 INFO L226 Difference]: Without dead ends: 266 [2023-11-23 20:35:41,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-23 20:35:41,478 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 335 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:41,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 572 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:35:41,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-11-23 20:35:41,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2023-11-23 20:35:41,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 196 states have (on average 1.5204081632653061) internal successors, (298), 197 states have internal predecessors, (298), 58 states have call successors, (58), 10 states have call predecessors, (58), 10 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-11-23 20:35:41,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 414 transitions. [2023-11-23 20:35:41,514 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 414 transitions. Word has length 106 [2023-11-23 20:35:41,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:41,514 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 414 transitions. [2023-11-23 20:35:41,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 20:35:41,515 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 414 transitions. [2023-11-23 20:35:41,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-23 20:35:41,520 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:41,520 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:41,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:35:41,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:35:41,742 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-23 20:35:41,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:41,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1453582833, now seen corresponding path program 1 times [2023-11-23 20:35:41,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:41,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154809764] [2023-11-23 20:35:41,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:41,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:42,010 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 24 proven. 4 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-23 20:35:42,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:35:42,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154809764] [2023-11-23 20:35:42,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154809764] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:35:42,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268387426] [2023-11-23 20:35:42,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:42,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:35:42,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:42,027 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:35:42,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 20:35:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:42,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 20:35:42,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:35:42,329 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-23 20:35:42,329 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:35:42,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268387426] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:42,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 20:35:42,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-11-23 20:35:42,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256803163] [2023-11-23 20:35:42,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:42,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:35:42,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:35:42,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:35:42,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-23 20:35:42,333 INFO L87 Difference]: Start difference. First operand 266 states and 414 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 20:35:42,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:42,504 INFO L93 Difference]: Finished difference Result 489 states and 765 transitions. [2023-11-23 20:35:42,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 20:35:42,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 107 [2023-11-23 20:35:42,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:42,508 INFO L225 Difference]: With dead ends: 489 [2023-11-23 20:35:42,508 INFO L226 Difference]: Without dead ends: 267 [2023-11-23 20:35:42,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-23 20:35:42,511 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 331 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:42,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 575 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:35:42,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2023-11-23 20:35:42,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 266. [2023-11-23 20:35:42,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 196 states have (on average 1.5153061224489797) internal successors, (297), 197 states have internal predecessors, (297), 58 states have call successors, (58), 10 states have call predecessors, (58), 10 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-11-23 20:35:42,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 413 transitions. [2023-11-23 20:35:42,546 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 413 transitions. Word has length 107 [2023-11-23 20:35:42,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:42,548 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 413 transitions. [2023-11-23 20:35:42,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 20:35:42,549 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 413 transitions. [2023-11-23 20:35:42,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-23 20:35:42,557 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:42,558 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:42,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 20:35:42,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:35:42,770 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-23 20:35:42,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:42,771 INFO L85 PathProgramCache]: Analyzing trace with hash -2056646446, now seen corresponding path program 1 times [2023-11-23 20:35:42,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:42,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080577412] [2023-11-23 20:35:42,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:42,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:42,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:43,107 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-23 20:35:43,107 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:35:43,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080577412] [2023-11-23 20:35:43,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080577412] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:35:43,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301279626] [2023-11-23 20:35:43,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:43,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:35:43,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:43,110 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:35:43,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 20:35:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:43,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:35:43,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:35:43,420 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-23 20:35:43,420 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:35:43,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301279626] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:43,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 20:35:43,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-23 20:35:43,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244248249] [2023-11-23 20:35:43,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:43,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 20:35:43,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:35:43,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 20:35:43,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 20:35:43,424 INFO L87 Difference]: Start difference. First operand 266 states and 413 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-23 20:35:43,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:43,600 INFO L93 Difference]: Finished difference Result 266 states and 413 transitions. [2023-11-23 20:35:43,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:35:43,601 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 109 [2023-11-23 20:35:43,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:43,605 INFO L225 Difference]: With dead ends: 266 [2023-11-23 20:35:43,605 INFO L226 Difference]: Without dead ends: 265 [2023-11-23 20:35:43,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-23 20:35:43,609 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 213 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:43,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 969 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:35:43,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-11-23 20:35:43,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2023-11-23 20:35:43,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 196 states have (on average 1.510204081632653) internal successors, (296), 196 states have internal predecessors, (296), 58 states have call successors, (58), 10 states have call predecessors, (58), 10 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-11-23 20:35:43,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 412 transitions. [2023-11-23 20:35:43,644 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 412 transitions. Word has length 109 [2023-11-23 20:35:43,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:43,647 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 412 transitions. [2023-11-23 20:35:43,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-23 20:35:43,647 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 412 transitions. [2023-11-23 20:35:43,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-23 20:35:43,650 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:43,650 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:43,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 20:35:43,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:35:43,871 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-23 20:35:43,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:43,872 INFO L85 PathProgramCache]: Analyzing trace with hash 668470138, now seen corresponding path program 1 times [2023-11-23 20:35:43,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:43,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575054802] [2023-11-23 20:35:43,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:43,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:44,013 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-23 20:35:44,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:35:44,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575054802] [2023-11-23 20:35:44,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575054802] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:44,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:44,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:35:44,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978032560] [2023-11-23 20:35:44,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:44,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:35:44,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:35:44,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:35:44,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:35:44,022 INFO L87 Difference]: Start difference. First operand 265 states and 412 transitions. Second operand has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-23 20:35:44,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:44,088 INFO L93 Difference]: Finished difference Result 265 states and 412 transitions. [2023-11-23 20:35:44,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:35:44,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 110 [2023-11-23 20:35:44,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:44,092 INFO L225 Difference]: With dead ends: 265 [2023-11-23 20:35:44,092 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 20:35:44,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:35:44,094 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 106 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:44,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 503 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:35:44,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 20:35:44,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 20:35:44,095 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) [2023-11-23 20:35:44,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 20:35:44,096 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 110 [2023-11-23 20:35:44,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:44,096 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 20:35:44,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-23 20:35:44,097 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 20:35:44,097 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:35:44,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-23 20:35:44,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-23 20:35:44,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 20:35:44,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 20:35:44,549 INFO L902 garLoopResultBuilder]: At program point L187(line 187) the Hoare annotation is: true [2023-11-23 20:35:44,550 INFO L899 garLoopResultBuilder]: For program point L187-1(line 187) no Hoare annotation was computed. [2023-11-23 20:35:44,551 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 189) no Hoare annotation was computed. [2023-11-23 20:35:44,551 INFO L899 garLoopResultBuilder]: For program point L181(lines 181 189) no Hoare annotation was computed. [2023-11-23 20:35:44,551 INFO L899 garLoopResultBuilder]: For program point L178(lines 178 189) no Hoare annotation was computed. [2023-11-23 20:35:44,552 INFO L899 garLoopResultBuilder]: For program point read_manual_selection_historyEXIT(lines 173 191) no Hoare annotation was computed. [2023-11-23 20:35:44,552 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 173 191) the Hoare annotation is: true [2023-11-23 20:35:44,552 INFO L899 garLoopResultBuilder]: For program point read_manual_selection_historyFINAL(lines 173 191) no Hoare annotation was computed. [2023-11-23 20:35:44,552 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 236 248) the Hoare annotation is: true [2023-11-23 20:35:44,553 INFO L899 garLoopResultBuilder]: For program point flip_the_sideEXIT(lines 236 248) no Hoare annotation was computed. [2023-11-23 20:35:44,553 INFO L899 garLoopResultBuilder]: For program point read_side2_failed_historyEXIT(lines 113 131) no Hoare annotation was computed. [2023-11-23 20:35:44,553 INFO L902 garLoopResultBuilder]: At program point L127(line 127) the Hoare annotation is: true [2023-11-23 20:35:44,554 INFO L899 garLoopResultBuilder]: For program point L127-1(line 127) no Hoare annotation was computed. [2023-11-23 20:35:44,554 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 129) no Hoare annotation was computed. [2023-11-23 20:35:44,554 INFO L899 garLoopResultBuilder]: For program point read_side2_failed_historyFINAL(lines 113 131) no Hoare annotation was computed. [2023-11-23 20:35:44,554 INFO L899 garLoopResultBuilder]: For program point L121(lines 121 129) no Hoare annotation was computed. [2023-11-23 20:35:44,556 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 129) no Hoare annotation was computed. [2023-11-23 20:35:44,556 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 113 131) the Hoare annotation is: true [2023-11-23 20:35:44,557 INFO L899 garLoopResultBuilder]: For program point assertEXIT(lines 612 623) no Hoare annotation was computed. [2023-11-23 20:35:44,557 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 612 623) the Hoare annotation is: true [2023-11-23 20:35:44,557 INFO L902 garLoopResultBuilder]: At program point L97(line 97) the Hoare annotation is: true [2023-11-23 20:35:44,557 INFO L899 garLoopResultBuilder]: For program point L97-1(line 97) no Hoare annotation was computed. [2023-11-23 20:35:44,557 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 99) no Hoare annotation was computed. [2023-11-23 20:35:44,558 INFO L899 garLoopResultBuilder]: For program point read_side1_failed_historyFINAL(lines 83 101) no Hoare annotation was computed. [2023-11-23 20:35:44,558 INFO L899 garLoopResultBuilder]: For program point L91(lines 91 99) no Hoare annotation was computed. [2023-11-23 20:35:44,559 INFO L899 garLoopResultBuilder]: For program point read_side1_failed_historyEXIT(lines 83 101) no Hoare annotation was computed. [2023-11-23 20:35:44,559 INFO L899 garLoopResultBuilder]: For program point L88(lines 88 99) no Hoare annotation was computed. [2023-11-23 20:35:44,559 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 83 101) the Hoare annotation is: true [2023-11-23 20:35:44,559 INFO L895 garLoopResultBuilder]: At program point L564(line 564) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~i2~0#1|) (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= (+ ~nomsg~0 1) 0)) [2023-11-23 20:35:44,560 INFO L899 garLoopResultBuilder]: For program point L564-1(line 564) no Hoare annotation was computed. [2023-11-23 20:35:44,560 INFO L899 garLoopResultBuilder]: For program point L465(lines 465 481) no Hoare annotation was computed. [2023-11-23 20:35:44,560 INFO L899 garLoopResultBuilder]: For program point L366-1(lines 347 370) no Hoare annotation was computed. [2023-11-23 20:35:44,560 INFO L899 garLoopResultBuilder]: For program point L350(lines 350 370) no Hoare annotation was computed. [2023-11-23 20:35:44,560 INFO L899 garLoopResultBuilder]: For program point L466(lines 466 470) no Hoare annotation was computed. [2023-11-23 20:35:44,561 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 416) no Hoare annotation was computed. [2023-11-23 20:35:44,561 INFO L899 garLoopResultBuilder]: For program point L466-2(lines 465 481) no Hoare annotation was computed. [2023-11-23 20:35:44,561 INFO L895 garLoopResultBuilder]: At program point L367(line 367) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (<= (+ ~s1p_old~0 1) 0) (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0 (<= (+ ~s2p_old~0 1) 0)))) [2023-11-23 20:35:44,561 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 340) no Hoare annotation was computed. [2023-11-23 20:35:44,562 INFO L899 garLoopResultBuilder]: For program point L367-1(line 367) no Hoare annotation was computed. [2023-11-23 20:35:44,563 INFO L895 garLoopResultBuilder]: At program point L582-2(lines 582 608) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (<= (+ ~s1p_old~0 1) 0) (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0 (<= (+ ~s2p_old~0 1) 0)))) [2023-11-23 20:35:44,563 INFO L895 garLoopResultBuilder]: At program point L450-2(lines 447 454) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0))) [2023-11-23 20:35:44,563 INFO L899 garLoopResultBuilder]: For program point L351(lines 351 355) no Hoare annotation was computed. [2023-11-23 20:35:44,564 INFO L899 garLoopResultBuilder]: For program point L467(lines 467 469) no Hoare annotation was computed. [2023-11-23 20:35:44,564 INFO L899 garLoopResultBuilder]: For program point L401(lines 401 405) no Hoare annotation was computed. [2023-11-23 20:35:44,564 INFO L899 garLoopResultBuilder]: For program point L302(lines 302 306) no Hoare annotation was computed. [2023-11-23 20:35:44,564 INFO L899 garLoopResultBuilder]: For program point $Ultimate##84(lines 408 416) no Hoare annotation was computed. [2023-11-23 20:35:44,564 INFO L899 garLoopResultBuilder]: For program point L518(line 518) no Hoare annotation was computed. [2023-11-23 20:35:44,566 INFO L895 garLoopResultBuilder]: At program point L386(line 386) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (<= (+ ~s1p_old~0 1) 0) (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0 (<= (+ ~s2p_old~0 1) 0)))) [2023-11-23 20:35:44,567 INFO L899 garLoopResultBuilder]: For program point L386-1(line 386) no Hoare annotation was computed. [2023-11-23 20:35:44,567 INFO L899 garLoopResultBuilder]: For program point L502(line 502) no Hoare annotation was computed. [2023-11-23 20:35:44,567 INFO L899 garLoopResultBuilder]: For program point L519(lines 519 536) no Hoare annotation was computed. [2023-11-23 20:35:44,567 INFO L899 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2023-11-23 20:35:44,568 INFO L899 garLoopResultBuilder]: For program point L519-1(lines 519 536) no Hoare annotation was computed. [2023-11-23 20:35:44,568 INFO L899 garLoopResultBuilder]: For program point L503(lines 503 517) no Hoare annotation was computed. [2023-11-23 20:35:44,571 INFO L895 garLoopResultBuilder]: At program point L503-1(lines 503 517) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0))) [2023-11-23 20:35:44,572 INFO L895 garLoopResultBuilder]: At program point L520(line 520) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0))) [2023-11-23 20:35:44,573 INFO L899 garLoopResultBuilder]: For program point $Ultimate##63(lines 358 370) no Hoare annotation was computed. [2023-11-23 20:35:44,573 INFO L899 garLoopResultBuilder]: For program point L487(lines 487 501) no Hoare annotation was computed. [2023-11-23 20:35:44,573 INFO L899 garLoopResultBuilder]: For program point L520-1(line 520) no Hoare annotation was computed. [2023-11-23 20:35:44,573 INFO L895 garLoopResultBuilder]: At program point L487-1(lines 487 501) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0))) [2023-11-23 20:35:44,574 INFO L899 garLoopResultBuilder]: For program point $Ultimate##69(lines 366 370) no Hoare annotation was computed. [2023-11-23 20:35:44,574 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 20:35:44,574 INFO L895 garLoopResultBuilder]: At program point L504(line 504) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0))) [2023-11-23 20:35:44,574 INFO L899 garLoopResultBuilder]: For program point L504-1(line 504) no Hoare annotation was computed. [2023-11-23 20:35:44,574 INFO L899 garLoopResultBuilder]: For program point L471-1(lines 465 481) no Hoare annotation was computed. [2023-11-23 20:35:44,575 INFO L899 garLoopResultBuilder]: For program point L521(lines 521 535) no Hoare annotation was computed. [2023-11-23 20:35:44,575 INFO L895 garLoopResultBuilder]: At program point L488(line 488) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0))) [2023-11-23 20:35:44,575 INFO L895 garLoopResultBuilder]: At program point L455(line 455) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0))) [2023-11-23 20:35:44,576 INFO L899 garLoopResultBuilder]: For program point L488-1(line 488) no Hoare annotation was computed. [2023-11-23 20:35:44,576 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 313) no Hoare annotation was computed. [2023-11-23 20:35:44,576 INFO L899 garLoopResultBuilder]: For program point L505(lines 505 516) no Hoare annotation was computed. [2023-11-23 20:35:44,576 INFO L899 garLoopResultBuilder]: For program point L472(lines 472 474) no Hoare annotation was computed. [2023-11-23 20:35:44,576 INFO L899 garLoopResultBuilder]: For program point $Ultimate##49(lines 309 313) no Hoare annotation was computed. [2023-11-23 20:35:44,577 INFO L895 garLoopResultBuilder]: At program point L522(line 522) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0))) [2023-11-23 20:35:44,577 INFO L899 garLoopResultBuilder]: For program point $Ultimate##43(lines 301 313) no Hoare annotation was computed. [2023-11-23 20:35:44,577 INFO L899 garLoopResultBuilder]: For program point L489(lines 489 500) no Hoare annotation was computed. [2023-11-23 20:35:44,577 INFO L899 garLoopResultBuilder]: For program point L522-1(line 522) no Hoare annotation was computed. [2023-11-23 20:35:44,577 INFO L899 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2023-11-23 20:35:44,578 INFO L895 garLoopResultBuilder]: At program point L605(line 605) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0))) [2023-11-23 20:35:44,578 INFO L899 garLoopResultBuilder]: For program point L605-1(line 605) no Hoare annotation was computed. [2023-11-23 20:35:44,578 INFO L895 garLoopResultBuilder]: At program point L506(line 506) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0))) [2023-11-23 20:35:44,579 INFO L899 garLoopResultBuilder]: For program point L506-1(line 506) no Hoare annotation was computed. [2023-11-23 20:35:44,580 INFO L895 garLoopResultBuilder]: At program point L523(line 523) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0))) [2023-11-23 20:35:44,580 INFO L895 garLoopResultBuilder]: At program point L490(line 490) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0))) [2023-11-23 20:35:44,580 INFO L899 garLoopResultBuilder]: For program point L523-1(line 523) no Hoare annotation was computed. [2023-11-23 20:35:44,580 INFO L899 garLoopResultBuilder]: For program point L457(lines 457 485) no Hoare annotation was computed. [2023-11-23 20:35:44,581 INFO L899 garLoopResultBuilder]: For program point L490-1(line 490) no Hoare annotation was computed. [2023-11-23 20:35:44,581 INFO L895 garLoopResultBuilder]: At program point L457-1(lines 457 485) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0))) [2023-11-23 20:35:44,581 INFO L899 garLoopResultBuilder]: For program point Side2_activestandby_task_each_pals_period_returnLabel#1(lines 321 377) no Hoare annotation was computed. [2023-11-23 20:35:44,581 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 606) no Hoare annotation was computed. [2023-11-23 20:35:44,581 INFO L899 garLoopResultBuilder]: For program point L606(line 606) no Hoare annotation was computed. [2023-11-23 20:35:44,582 INFO L899 garLoopResultBuilder]: For program point L606-1(line 606) no Hoare annotation was computed. [2023-11-23 20:35:44,582 INFO L899 garLoopResultBuilder]: For program point L507(lines 507 509) no Hoare annotation was computed. [2023-11-23 20:35:44,582 INFO L899 garLoopResultBuilder]: For program point L408(lines 394 416) no Hoare annotation was computed. [2023-11-23 20:35:44,582 INFO L899 garLoopResultBuilder]: For program point L309-1(lines 290 313) no Hoare annotation was computed. [2023-11-23 20:35:44,582 INFO L899 garLoopResultBuilder]: For program point L524(lines 524 534) no Hoare annotation was computed. [2023-11-23 20:35:44,582 INFO L899 garLoopResultBuilder]: For program point L491(lines 491 493) no Hoare annotation was computed. [2023-11-23 20:35:44,586 INFO L895 garLoopResultBuilder]: At program point L458(line 458) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0))) [2023-11-23 20:35:44,586 INFO L899 garLoopResultBuilder]: For program point L458-1(line 458) no Hoare annotation was computed. [2023-11-23 20:35:44,586 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 363) no Hoare annotation was computed. [2023-11-23 20:35:44,587 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 313) no Hoare annotation was computed. [2023-11-23 20:35:44,587 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 606) no Hoare annotation was computed. [2023-11-23 20:35:44,587 INFO L895 garLoopResultBuilder]: At program point L310(line 310) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (<= (+ ~s1p_old~0 1) 0) (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0 (<= (+ ~s2p_old~0 1) 0)))) [2023-11-23 20:35:44,587 INFO L899 garLoopResultBuilder]: For program point L277(lines 277 283) no Hoare annotation was computed. [2023-11-23 20:35:44,588 INFO L899 garLoopResultBuilder]: For program point L310-1(line 310) no Hoare annotation was computed. [2023-11-23 20:35:44,588 INFO L895 garLoopResultBuilder]: At program point L525(line 525) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0))) [2023-11-23 20:35:44,589 INFO L899 garLoopResultBuilder]: For program point L525-1(line 525) no Hoare annotation was computed. [2023-11-23 20:35:44,589 INFO L899 garLoopResultBuilder]: For program point L459(lines 459 484) no Hoare annotation was computed. [2023-11-23 20:35:44,589 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 20:35:44,589 INFO L899 garLoopResultBuilder]: For program point L294(lines 294 298) no Hoare annotation was computed. [2023-11-23 20:35:44,590 INFO L895 garLoopResultBuilder]: At program point L526(line 526) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0))) [2023-11-23 20:35:44,590 INFO L899 garLoopResultBuilder]: For program point L526-1(line 526) no Hoare annotation was computed. [2023-11-23 20:35:44,590 INFO L895 garLoopResultBuilder]: At program point L460(line 460) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0))) [2023-11-23 20:35:44,590 INFO L899 garLoopResultBuilder]: For program point L460-1(line 460) no Hoare annotation was computed. [2023-11-23 20:35:44,590 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 416) no Hoare annotation was computed. [2023-11-23 20:35:44,591 INFO L895 garLoopResultBuilder]: At program point L510(line 510) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0))) [2023-11-23 20:35:44,591 INFO L899 garLoopResultBuilder]: For program point L477(lines 477 479) no Hoare annotation was computed. [2023-11-23 20:35:44,591 INFO L899 garLoopResultBuilder]: For program point L510-1(line 510) no Hoare annotation was computed. [2023-11-23 20:35:44,591 INFO L899 garLoopResultBuilder]: For program point L527(lines 527 533) no Hoare annotation was computed. [2023-11-23 20:35:44,591 INFO L895 garLoopResultBuilder]: At program point L494(line 494) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0))) [2023-11-23 20:35:44,591 INFO L899 garLoopResultBuilder]: For program point L461(lines 461 483) no Hoare annotation was computed. [2023-11-23 20:35:44,592 INFO L899 garLoopResultBuilder]: For program point L494-1(line 494) no Hoare annotation was computed. [2023-11-23 20:35:44,592 INFO L899 garLoopResultBuilder]: For program point L511(lines 511 515) no Hoare annotation was computed. [2023-11-23 20:35:44,592 INFO L895 garLoopResultBuilder]: At program point L528(line 528) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0))) [2023-11-23 20:35:44,592 INFO L899 garLoopResultBuilder]: For program point L495(lines 495 499) no Hoare annotation was computed. [2023-11-23 20:35:44,592 INFO L899 garLoopResultBuilder]: For program point L528-1(line 528) no Hoare annotation was computed. [2023-11-23 20:35:44,593 INFO L895 garLoopResultBuilder]: At program point L462(line 462) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0))) [2023-11-23 20:35:44,593 INFO L899 garLoopResultBuilder]: For program point L462-1(line 462) no Hoare annotation was computed. [2023-11-23 20:35:44,593 INFO L899 garLoopResultBuilder]: For program point L512(lines 512 514) no Hoare annotation was computed. [2023-11-23 20:35:44,593 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 370) no Hoare annotation was computed. [2023-11-23 20:35:44,593 INFO L895 garLoopResultBuilder]: At program point L529(line 529) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0))) [2023-11-23 20:35:44,594 INFO L899 garLoopResultBuilder]: For program point L496(lines 496 498) no Hoare annotation was computed. [2023-11-23 20:35:44,594 INFO L899 garLoopResultBuilder]: For program point L529-1(line 529) no Hoare annotation was computed. [2023-11-23 20:35:44,594 INFO L899 garLoopResultBuilder]: For program point L463(lines 463 482) no Hoare annotation was computed. [2023-11-23 20:35:44,594 INFO L899 garLoopResultBuilder]: For program point check_returnLabel#1(lines 421 539) no Hoare annotation was computed. [2023-11-23 20:35:44,594 INFO L899 garLoopResultBuilder]: For program point L397(lines 397 416) no Hoare annotation was computed. [2023-11-23 20:35:44,595 INFO L899 garLoopResultBuilder]: For program point L530(lines 530 532) no Hoare annotation was computed. [2023-11-23 20:35:44,595 INFO L895 garLoopResultBuilder]: At program point L464(line 464) the Hoare annotation is: (let ((.cse0 (<= (+ ~nomsg~0 1) 0))) (or (and (<= |ULTIMATE.start_main_~i2~0#1| 9) (<= 1 |ULTIMATE.start_main_~i2~0#1|) .cse0) (and (= |ULTIMATE.start_main_~i2~0#1| 0) .cse0))) [2023-11-23 20:35:44,595 INFO L899 garLoopResultBuilder]: For program point L464-1(line 464) no Hoare annotation was computed. [2023-11-23 20:35:44,595 INFO L899 garLoopResultBuilder]: For program point Side1_activestandby_task_each_pals_period_returnLabel#1(lines 264 320) no Hoare annotation was computed. [2023-11-23 20:35:44,595 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 57 59) the Hoare annotation is: true [2023-11-23 20:35:44,595 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 57 59) no Hoare annotation was computed. [2023-11-23 20:35:44,596 INFO L902 garLoopResultBuilder]: At program point L157(line 157) the Hoare annotation is: true [2023-11-23 20:35:44,596 INFO L899 garLoopResultBuilder]: For program point L157-1(line 157) no Hoare annotation was computed. [2023-11-23 20:35:44,596 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 159) no Hoare annotation was computed. [2023-11-23 20:35:44,596 INFO L899 garLoopResultBuilder]: For program point L151(lines 151 159) no Hoare annotation was computed. [2023-11-23 20:35:44,596 INFO L899 garLoopResultBuilder]: For program point L148(lines 148 159) no Hoare annotation was computed. [2023-11-23 20:35:44,597 INFO L899 garLoopResultBuilder]: For program point read_active_side_historyEXIT(lines 143 161) no Hoare annotation was computed. [2023-11-23 20:35:44,597 INFO L899 garLoopResultBuilder]: For program point read_active_side_historyFINAL(lines 143 161) no Hoare annotation was computed. [2023-11-23 20:35:44,597 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 143 161) the Hoare annotation is: true [2023-11-23 20:35:44,600 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-23 20:35:44,603 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:35:44,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:35:44 BoogieIcfgContainer [2023-11-23 20:35:44,619 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:35:44,620 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:35:44,621 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:35:44,621 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:35:44,621 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:38" (3/4) ... [2023-11-23 20:35:44,623 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:35:44,627 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_manual_selection_history [2023-11-23 20:35:44,628 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure flip_the_side [2023-11-23 20:35:44,628 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_side2_failed_history [2023-11-23 20:35:44,628 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assert [2023-11-23 20:35:44,628 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_side1_failed_history [2023-11-23 20:35:44,628 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-23 20:35:44,629 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_active_side_history [2023-11-23 20:35:44,654 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 58 nodes and edges [2023-11-23 20:35:44,656 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-23 20:35:44,657 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 20:35:44,659 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:35:44,869 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 20:35:44,870 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 20:35:44,870 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:35:44,871 INFO L158 Benchmark]: Toolchain (without parser) took 7841.54ms. Allocated memory was 130.0MB in the beginning and 188.7MB in the end (delta: 58.7MB). Free memory was 88.4MB in the beginning and 127.3MB in the end (delta: -38.9MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2023-11-23 20:35:44,872 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 77.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:35:44,872 INFO L158 Benchmark]: CACSL2BoogieTranslator took 543.42ms. Allocated memory is still 130.0MB. Free memory was 87.9MB in the beginning and 93.7MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 20:35:44,872 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.76ms. Allocated memory is still 130.0MB. Free memory was 93.7MB in the beginning and 89.9MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:35:44,873 INFO L158 Benchmark]: Boogie Preprocessor took 59.00ms. Allocated memory is still 130.0MB. Free memory was 89.9MB in the beginning and 86.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:35:44,873 INFO L158 Benchmark]: RCFGBuilder took 1179.94ms. Allocated memory is still 130.0MB. Free memory was 86.8MB in the beginning and 91.1MB in the end (delta: -4.3MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. [2023-11-23 20:35:44,874 INFO L158 Benchmark]: TraceAbstraction took 5715.75ms. Allocated memory was 130.0MB in the beginning and 188.7MB in the end (delta: 58.7MB). Free memory was 90.3MB in the beginning and 139.9MB in the end (delta: -49.5MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. [2023-11-23 20:35:44,874 INFO L158 Benchmark]: Witness Printer took 250.19ms. Allocated memory is still 188.7MB. Free memory was 139.9MB in the beginning and 127.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 20:35:44,876 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 77.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 543.42ms. Allocated memory is still 130.0MB. Free memory was 87.9MB in the beginning and 93.7MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.76ms. Allocated memory is still 130.0MB. Free memory was 93.7MB in the beginning and 89.9MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.00ms. Allocated memory is still 130.0MB. Free memory was 89.9MB in the beginning and 86.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1179.94ms. Allocated memory is still 130.0MB. Free memory was 86.8MB in the beginning and 91.1MB in the end (delta: -4.3MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. * TraceAbstraction took 5715.75ms. Allocated memory was 130.0MB in the beginning and 188.7MB in the end (delta: 58.7MB). Free memory was 90.3MB in the beginning and 139.9MB in the end (delta: -49.5MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. * Witness Printer took 250.19ms. Allocated memory is still 188.7MB. Free memory was 139.9MB in the beginning and 127.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * 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: 606]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 606]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 150 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 5.6s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1170 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1092 mSDsluCounter, 3271 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2070 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 338 IncrementalHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 1201 mSDtfsCounter, 338 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 352 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=266occurred in iteration=2, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 39 LocationsWithAnnotation, 322 PreInvPairs, 376 NumberOfFragments, 654 HoareAnnotationTreeSize, 322 FomulaSimplifications, 162 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 39 FomulaSimplificationsInter, 242 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 809 NumberOfCodeBlocks, 809 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 801 ConstructedInterpolants, 0 QuantifiedInterpolants, 1417 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1726 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 441/497 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 2 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: (((1 <= i2) && ((nomsg + 1) <= 0)) || (((((s1p_old + 1) <= 0) && (i2 == 0)) && ((nomsg + 1) <= 0)) && ((s2p_old + 1) <= 0))) RESULT: Ultimate proved your program to be correct! [2023-11-23 20:35:44,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9b57459-8178-4e1e-92b0-4c6c903719c3/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE