./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.2.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.2.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh --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 5c227f1dec7d604552aae19de1afcc1049837e83568477af6195219b22e2f636 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:24:02,060 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:24:02,128 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 14:24:02,133 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:24:02,133 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:24:02,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:24:02,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:24:02,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:24:02,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:24:02,160 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:24:02,161 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:24:02,161 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:24:02,162 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:24:02,162 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:24:02,163 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:24:02,163 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:24:02,164 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:24:02,164 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:24:02,165 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:24:02,165 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:24:02,166 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:24:02,168 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:24:02,169 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:24:02,170 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:24:02,170 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 14:24:02,170 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:24:02,171 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 14:24:02,171 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:24:02,171 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:24:02,172 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:24:02,172 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:24:02,173 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 14:24:02,173 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 14:24:02,173 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 14:24:02,173 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:24:02,174 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:24:02,174 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:24:02,174 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:24:02,174 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:24:02,175 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:24:02,175 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:24:02,175 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:24:02,176 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:24:02,176 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:24:02,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:24:02,176 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:24:02,176 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:24:02,177 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:24:02,177 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:24:02,177 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_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c227f1dec7d604552aae19de1afcc1049837e83568477af6195219b22e2f636 [2023-12-02 14:24:02,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:24:02,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:24:02,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:24:02,430 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:24:02,430 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:24:02,431 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.2.ufo.UNBOUNDED.pals.c [2023-12-02 14:24:05,219 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:24:05,407 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:24:05,407 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.2.ufo.UNBOUNDED.pals.c [2023-12-02 14:24:05,419 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/data/d0d9e40b2/69fd8ce67b8e4024a0cd29f885f68253/FLAG4c47fda2f [2023-12-02 14:24:05,434 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/data/d0d9e40b2/69fd8ce67b8e4024a0cd29f885f68253 [2023-12-02 14:24:05,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:24:05,438 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:24:05,439 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:24:05,439 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:24:05,444 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:24:05,445 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:24:05" (1/1) ... [2023-12-02 14:24:05,446 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7641abb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:05, skipping insertion in model container [2023-12-02 14:24:05,446 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:24:05" (1/1) ... [2023-12-02 14:24:05,491 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:24:05,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:24:05,722 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:24:05,780 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:24:05,796 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:24:05,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:05 WrapperNode [2023-12-02 14:24:05,797 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:24:05,798 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:24:05,798 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:24:05,798 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:24:05,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:05" (1/1) ... [2023-12-02 14:24:05,816 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:05" (1/1) ... [2023-12-02 14:24:05,852 INFO L138 Inliner]: procedures = 28, calls = 52, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 413 [2023-12-02 14:24:05,852 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:24:05,853 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:24:05,853 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:24:05,854 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:24:05,864 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:05" (1/1) ... [2023-12-02 14:24:05,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:05" (1/1) ... [2023-12-02 14:24:05,869 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:05" (1/1) ... [2023-12-02 14:24:05,869 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:05" (1/1) ... [2023-12-02 14:24:05,882 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:05" (1/1) ... [2023-12-02 14:24:05,889 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:05" (1/1) ... [2023-12-02 14:24:05,893 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:05" (1/1) ... [2023-12-02 14:24:05,896 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:05" (1/1) ... [2023-12-02 14:24:05,901 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:24:05,902 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:24:05,902 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:24:05,902 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:24:05,903 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:05" (1/1) ... [2023-12-02 14:24:05,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:24:05,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:24:05,934 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:24:05,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:24:05,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:24:05,975 INFO L130 BoogieDeclarations]: Found specification of procedure write_history_bool [2023-12-02 14:24:05,975 INFO L138 BoogieDeclarations]: Found implementation of procedure write_history_bool [2023-12-02 14:24:05,976 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-12-02 14:24:05,976 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-12-02 14:24:05,976 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_int8 [2023-12-02 14:24:05,976 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_int8 [2023-12-02 14:24:05,976 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_bool [2023-12-02 14:24:05,977 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_bool [2023-12-02 14:24:05,977 INFO L130 BoogieDeclarations]: Found specification of procedure add_history_type [2023-12-02 14:24:05,977 INFO L138 BoogieDeclarations]: Found implementation of procedure add_history_type [2023-12-02 14:24:05,977 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 14:24:05,977 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 14:24:05,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 14:24:05,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:24:05,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:24:06,082 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:24:06,084 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:24:06,566 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:24:06,697 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:24:06,698 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 14:24:06,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:24:06 BoogieIcfgContainer [2023-12-02 14:24:06,700 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:24:06,703 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:24:06,703 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:24:06,706 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:24:06,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:24:05" (1/3) ... [2023-12-02 14:24:06,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf1ee4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:24:06, skipping insertion in model container [2023-12-02 14:24:06,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:24:05" (2/3) ... [2023-12-02 14:24:06,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf1ee4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:24:06, skipping insertion in model container [2023-12-02 14:24:06,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:24:06" (3/3) ... [2023-12-02 14:24:06,709 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.2.ufo.UNBOUNDED.pals.c [2023-12-02 14:24:06,726 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:24:06,726 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-12-02 14:24:06,771 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:24:06,777 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;@6fa641c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:24:06,777 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-12-02 14:24:06,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 106 states have (on average 1.5377358490566038) internal successors, (163), 118 states have internal predecessors, (163), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-12-02 14:24:06,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 14:24:06,788 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:06,788 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:06,789 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 14:24:06,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:06,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1192890858, now seen corresponding path program 1 times [2023-12-02 14:24:06,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:06,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232449513] [2023-12-02 14:24:06,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:06,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:07,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:24:07,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:07,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232449513] [2023-12-02 14:24:07,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232449513] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:07,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:24:07,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:24:07,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446874378] [2023-12-02 14:24:07,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:07,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:24:07,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:07,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:24:07,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:24:07,056 INFO L87 Difference]: Start difference. First operand has 158 states, 106 states have (on average 1.5377358490566038) internal successors, (163), 118 states have internal predecessors, (163), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:24:07,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:07,217 INFO L93 Difference]: Finished difference Result 335 states and 504 transitions. [2023-12-02 14:24:07,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 14:24:07,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-12-02 14:24:07,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:07,230 INFO L225 Difference]: With dead ends: 335 [2023-12-02 14:24:07,230 INFO L226 Difference]: Without dead ends: 179 [2023-12-02 14:24:07,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 14:24:07,240 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 34 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:07,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 653 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:24:07,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-12-02 14:24:07,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 173. [2023-12-02 14:24:07,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 120 states have (on average 1.525) internal successors, (183), 131 states have internal predecessors, (183), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-02 14:24:07,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 259 transitions. [2023-12-02 14:24:07,297 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 259 transitions. Word has length 10 [2023-12-02 14:24:07,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:07,298 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 259 transitions. [2023-12-02 14:24:07,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:24:07,298 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 259 transitions. [2023-12-02 14:24:07,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 14:24:07,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:07,300 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:07,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 14:24:07,301 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 14:24:07,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:07,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1307477084, now seen corresponding path program 1 times [2023-12-02 14:24:07,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:07,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735223421] [2023-12-02 14:24:07,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:07,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:07,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:24:07,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:07,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735223421] [2023-12-02 14:24:07,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735223421] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:07,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:24:07,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:24:07,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050600595] [2023-12-02 14:24:07,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:07,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:24:07,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:07,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:24:07,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:24:07,405 INFO L87 Difference]: Start difference. First operand 173 states and 259 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 14:24:07,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:07,494 INFO L93 Difference]: Finished difference Result 370 states and 564 transitions. [2023-12-02 14:24:07,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:24:07,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2023-12-02 14:24:07,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:07,498 INFO L225 Difference]: With dead ends: 370 [2023-12-02 14:24:07,498 INFO L226 Difference]: Without dead ends: 208 [2023-12-02 14:24:07,500 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 [2023-12-02 14:24:07,501 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 21 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:07,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 668 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:24:07,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-12-02 14:24:07,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 204. [2023-12-02 14:24:07,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 146 states have (on average 1.4931506849315068) internal successors, (218), 157 states have internal predecessors, (218), 43 states have call successors, (43), 7 states have call predecessors, (43), 7 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-02 14:24:07,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 304 transitions. [2023-12-02 14:24:07,528 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 304 transitions. Word has length 14 [2023-12-02 14:24:07,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:07,529 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 304 transitions. [2023-12-02 14:24:07,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 14:24:07,529 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 304 transitions. [2023-12-02 14:24:07,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 14:24:07,531 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:07,531 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:07,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 14:24:07,532 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 14:24:07,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:07,532 INFO L85 PathProgramCache]: Analyzing trace with hash 992429912, now seen corresponding path program 1 times [2023-12-02 14:24:07,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:07,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180904537] [2023-12-02 14:24:07,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:07,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:07,665 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 14:24:07,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:07,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180904537] [2023-12-02 14:24:07,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180904537] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:24:07,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794961056] [2023-12-02 14:24:07,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:07,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:07,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:24:07,672 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:24:07,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 14:24:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:07,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 14:24:07,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:24:07,849 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 14:24:07,849 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:24:07,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794961056] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:07,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:24:07,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-12-02 14:24:07,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201880928] [2023-12-02 14:24:07,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:07,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 14:24:07,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:07,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 14:24:07,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-02 14:24:07,852 INFO L87 Difference]: Start difference. First operand 204 states and 304 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 14:24:07,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:07,926 INFO L93 Difference]: Finished difference Result 204 states and 304 transitions. [2023-12-02 14:24:07,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:24:07,927 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2023-12-02 14:24:07,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:07,929 INFO L225 Difference]: With dead ends: 204 [2023-12-02 14:24:07,930 INFO L226 Difference]: Without dead ends: 203 [2023-12-02 14:24:07,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-02 14:24:07,932 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 25 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:07,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 619 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:24:07,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-12-02 14:24:07,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2023-12-02 14:24:07,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 146 states have (on average 1.4726027397260273) internal successors, (215), 156 states have internal predecessors, (215), 43 states have call successors, (43), 7 states have call predecessors, (43), 7 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-02 14:24:07,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 301 transitions. [2023-12-02 14:24:07,954 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 301 transitions. Word has length 26 [2023-12-02 14:24:07,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:07,955 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 301 transitions. [2023-12-02 14:24:07,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 14:24:07,955 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 301 transitions. [2023-12-02 14:24:07,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 14:24:07,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:07,957 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-12-02 14:24:07,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 14:24:08,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:08,161 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting add_history_typeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 14:24:08,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:08,161 INFO L85 PathProgramCache]: Analyzing trace with hash 700556717, now seen corresponding path program 1 times [2023-12-02 14:24:08,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:08,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387219] [2023-12-02 14:24:08,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:08,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:08,229 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 14:24:08,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:08,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387219] [2023-12-02 14:24:08,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387219] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:08,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:24:08,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:24:08,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815974689] [2023-12-02 14:24:08,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:08,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:24:08,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:08,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:24:08,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:24:08,232 INFO L87 Difference]: Start difference. First operand 203 states and 301 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 14:24:08,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:08,298 INFO L93 Difference]: Finished difference Result 207 states and 307 transitions. [2023-12-02 14:24:08,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:24:08,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2023-12-02 14:24:08,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:08,302 INFO L225 Difference]: With dead ends: 207 [2023-12-02 14:24:08,302 INFO L226 Difference]: Without dead ends: 206 [2023-12-02 14:24:08,302 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 [2023-12-02 14:24:08,304 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 20 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:08,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 623 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:24:08,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2023-12-02 14:24:08,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 173. [2023-12-02 14:24:08,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 122 states have (on average 1.4672131147540983) internal successors, (179), 131 states have internal predecessors, (179), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-02 14:24:08,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 255 transitions. [2023-12-02 14:24:08,321 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 255 transitions. Word has length 27 [2023-12-02 14:24:08,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:08,322 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 255 transitions. [2023-12-02 14:24:08,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 14:24:08,322 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 255 transitions. [2023-12-02 14:24:08,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 14:24:08,327 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:08,327 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:08,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 14:24:08,327 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 14:24:08,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:08,328 INFO L85 PathProgramCache]: Analyzing trace with hash -74112517, now seen corresponding path program 1 times [2023-12-02 14:24:08,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:08,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596096430] [2023-12-02 14:24:08,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:08,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:08,489 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-02 14:24:08,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:08,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596096430] [2023-12-02 14:24:08,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596096430] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:24:08,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067774317] [2023-12-02 14:24:08,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:08,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:08,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:24:08,492 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:24:08,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 14:24:08,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:08,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:24:08,657 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:24:08,685 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-02 14:24:08,686 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:24:08,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067774317] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:08,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:24:08,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-12-02 14:24:08,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302503889] [2023-12-02 14:24:08,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:08,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:24:08,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:08,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:24:08,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-02 14:24:08,689 INFO L87 Difference]: Start difference. First operand 173 states and 255 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 14:24:08,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:08,786 INFO L93 Difference]: Finished difference Result 297 states and 443 transitions. [2023-12-02 14:24:08,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 14:24:08,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 79 [2023-12-02 14:24:08,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:08,789 INFO L225 Difference]: With dead ends: 297 [2023-12-02 14:24:08,789 INFO L226 Difference]: Without dead ends: 180 [2023-12-02 14:24:08,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-02 14:24:08,791 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 20 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:08,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 619 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:24:08,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-12-02 14:24:08,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2023-12-02 14:24:08,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 127 states have (on average 1.4724409448818898) internal successors, (187), 137 states have internal predecessors, (187), 39 states have call successors, (39), 8 states have call predecessors, (39), 8 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-12-02 14:24:08,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 265 transitions. [2023-12-02 14:24:08,806 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 265 transitions. Word has length 79 [2023-12-02 14:24:08,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:08,806 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 265 transitions. [2023-12-02 14:24:08,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 14:24:08,807 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 265 transitions. [2023-12-02 14:24:08,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 14:24:08,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:08,811 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:08,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 14:24:09,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:09,018 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 14:24:09,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:09,018 INFO L85 PathProgramCache]: Analyzing trace with hash 2056987619, now seen corresponding path program 1 times [2023-12-02 14:24:09,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:09,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236200295] [2023-12-02 14:24:09,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:09,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:09,164 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-02 14:24:09,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:09,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236200295] [2023-12-02 14:24:09,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236200295] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:24:09,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071474063] [2023-12-02 14:24:09,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:09,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:09,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:24:09,167 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:24:09,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 14:24:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:09,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:24:09,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:24:09,356 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 14:24:09,356 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:24:09,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071474063] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:09,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:24:09,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-12-02 14:24:09,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848634047] [2023-12-02 14:24:09,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:09,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:24:09,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:09,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:24:09,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-02 14:24:09,359 INFO L87 Difference]: Start difference. First operand 180 states and 265 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 14:24:09,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:09,450 INFO L93 Difference]: Finished difference Result 311 states and 462 transitions. [2023-12-02 14:24:09,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 14:24:09,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 81 [2023-12-02 14:24:09,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:09,453 INFO L225 Difference]: With dead ends: 311 [2023-12-02 14:24:09,453 INFO L226 Difference]: Without dead ends: 187 [2023-12-02 14:24:09,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-02 14:24:09,454 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 18 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:09,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 619 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:24:09,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-12-02 14:24:09,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2023-12-02 14:24:09,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 132 states have (on average 1.4772727272727273) internal successors, (195), 143 states have internal predecessors, (195), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-02 14:24:09,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 275 transitions. [2023-12-02 14:24:09,469 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 275 transitions. Word has length 81 [2023-12-02 14:24:09,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:09,470 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 275 transitions. [2023-12-02 14:24:09,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 14:24:09,470 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 275 transitions. [2023-12-02 14:24:09,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 14:24:09,472 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:09,472 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:09,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 14:24:09,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 14:24:09,677 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 14:24:09,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:09,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1380288231, now seen corresponding path program 1 times [2023-12-02 14:24:09,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:09,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872830849] [2023-12-02 14:24:09,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:09,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:09,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:09,795 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-02 14:24:09,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:09,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872830849] [2023-12-02 14:24:09,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872830849] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:24:09,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353295418] [2023-12-02 14:24:09,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:09,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:09,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:24:09,797 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:24:09,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 14:24:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:09,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:24:09,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:24:09,965 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 14:24:09,966 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:24:09,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353295418] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:09,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:24:09,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-12-02 14:24:09,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744144206] [2023-12-02 14:24:09,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:09,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:24:09,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:09,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:24:09,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-02 14:24:09,968 INFO L87 Difference]: Start difference. First operand 187 states and 275 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 14:24:10,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:10,084 INFO L93 Difference]: Finished difference Result 365 states and 548 transitions. [2023-12-02 14:24:10,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 14:24:10,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 82 [2023-12-02 14:24:10,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:10,087 INFO L225 Difference]: With dead ends: 365 [2023-12-02 14:24:10,087 INFO L226 Difference]: Without dead ends: 195 [2023-12-02 14:24:10,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-02 14:24:10,089 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 23 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:10,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 596 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:24:10,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-12-02 14:24:10,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2023-12-02 14:24:10,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 138 states have (on average 1.4782608695652173) internal successors, (204), 149 states have internal predecessors, (204), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-12-02 14:24:10,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 286 transitions. [2023-12-02 14:24:10,104 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 286 transitions. Word has length 82 [2023-12-02 14:24:10,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:10,105 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 286 transitions. [2023-12-02 14:24:10,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 14:24:10,105 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 286 transitions. [2023-12-02 14:24:10,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 14:24:10,107 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:10,107 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:10,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 14:24:10,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-12-02 14:24:10,314 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 14:24:10,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:10,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1987023271, now seen corresponding path program 1 times [2023-12-02 14:24:10,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:10,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551218464] [2023-12-02 14:24:10,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:10,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:10,427 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-12-02 14:24:10,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:10,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551218464] [2023-12-02 14:24:10,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551218464] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:24:10,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232822220] [2023-12-02 14:24:10,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:10,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:10,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:24:10,429 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:24:10,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 14:24:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:10,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:24:10,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:24:10,609 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-02 14:24:10,609 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:24:10,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232822220] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:10,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:24:10,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-12-02 14:24:10,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068037183] [2023-12-02 14:24:10,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:10,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:24:10,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:10,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:24:10,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-02 14:24:10,612 INFO L87 Difference]: Start difference. First operand 195 states and 286 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 14:24:10,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:10,727 INFO L93 Difference]: Finished difference Result 381 states and 567 transitions. [2023-12-02 14:24:10,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 14:24:10,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 84 [2023-12-02 14:24:10,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:10,730 INFO L225 Difference]: With dead ends: 381 [2023-12-02 14:24:10,730 INFO L226 Difference]: Without dead ends: 203 [2023-12-02 14:24:10,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-02 14:24:10,732 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 21 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:10,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 596 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:24:10,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-12-02 14:24:10,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2023-12-02 14:24:10,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 144 states have (on average 1.4791666666666667) internal successors, (213), 155 states have internal predecessors, (213), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-02 14:24:10,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 297 transitions. [2023-12-02 14:24:10,743 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 297 transitions. Word has length 84 [2023-12-02 14:24:10,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:10,744 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 297 transitions. [2023-12-02 14:24:10,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 14:24:10,744 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 297 transitions. [2023-12-02 14:24:10,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-02 14:24:10,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:10,746 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:10,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-02 14:24:10,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-02 14:24:10,947 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 14:24:10,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:10,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1378199809, now seen corresponding path program 1 times [2023-12-02 14:24:10,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:10,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454370115] [2023-12-02 14:24:10,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:10,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:11,023 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-12-02 14:24:11,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:11,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454370115] [2023-12-02 14:24:11,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454370115] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:24:11,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771450183] [2023-12-02 14:24:11,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:11,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:11,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:24:11,025 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:24:11,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 14:24:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:11,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:24:11,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:24:11,181 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 14:24:11,182 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:24:11,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771450183] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:11,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:24:11,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-02 14:24:11,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403714134] [2023-12-02 14:24:11,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:11,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:24:11,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:11,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:24:11,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-02 14:24:11,184 INFO L87 Difference]: Start difference. First operand 203 states and 297 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 14:24:11,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:11,254 INFO L93 Difference]: Finished difference Result 244 states and 363 transitions. [2023-12-02 14:24:11,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:24:11,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 85 [2023-12-02 14:24:11,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:11,257 INFO L225 Difference]: With dead ends: 244 [2023-12-02 14:24:11,257 INFO L226 Difference]: Without dead ends: 243 [2023-12-02 14:24:11,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-02 14:24:11,259 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 56 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:11,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 712 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:24:11,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2023-12-02 14:24:11,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 202. [2023-12-02 14:24:11,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 144 states have (on average 1.4722222222222223) internal successors, (212), 154 states have internal predecessors, (212), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-02 14:24:11,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 296 transitions. [2023-12-02 14:24:11,271 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 296 transitions. Word has length 85 [2023-12-02 14:24:11,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:11,272 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 296 transitions. [2023-12-02 14:24:11,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 14:24:11,272 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 296 transitions. [2023-12-02 14:24:11,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 14:24:11,274 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:11,274 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:11,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 14:24:11,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:11,476 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 14:24:11,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:11,477 INFO L85 PathProgramCache]: Analyzing trace with hash -225478570, now seen corresponding path program 1 times [2023-12-02 14:24:11,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:11,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628656996] [2023-12-02 14:24:11,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:11,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:11,578 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-12-02 14:24:11,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:11,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628656996] [2023-12-02 14:24:11,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628656996] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:24:11,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391799849] [2023-12-02 14:24:11,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:11,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:11,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:24:11,581 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:24:11,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 14:24:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:11,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:24:11,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:24:11,759 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 14:24:11,759 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:24:11,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391799849] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:11,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:24:11,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-02 14:24:11,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250489150] [2023-12-02 14:24:11,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:11,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:24:11,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:11,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:24:11,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-02 14:24:11,761 INFO L87 Difference]: Start difference. First operand 202 states and 296 transitions. Second operand has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 14:24:11,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:11,833 INFO L93 Difference]: Finished difference Result 367 states and 542 transitions. [2023-12-02 14:24:11,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:24:11,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 86 [2023-12-02 14:24:11,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:11,835 INFO L225 Difference]: With dead ends: 367 [2023-12-02 14:24:11,835 INFO L226 Difference]: Without dead ends: 221 [2023-12-02 14:24:11,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-02 14:24:11,836 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 23 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:11,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 653 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:24:11,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-12-02 14:24:11,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 212. [2023-12-02 14:24:11,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 153 states have (on average 1.4705882352941178) internal successors, (225), 162 states have internal predecessors, (225), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-02 14:24:11,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 313 transitions. [2023-12-02 14:24:11,849 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 313 transitions. Word has length 86 [2023-12-02 14:24:11,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:11,849 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 313 transitions. [2023-12-02 14:24:11,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 14:24:11,850 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 313 transitions. [2023-12-02 14:24:11,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-02 14:24:11,851 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:11,851 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:11,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 14:24:12,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:12,052 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 14:24:12,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:12,052 INFO L85 PathProgramCache]: Analyzing trace with hash 729038181, now seen corresponding path program 1 times [2023-12-02 14:24:12,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:12,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82419426] [2023-12-02 14:24:12,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:12,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:12,149 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-02 14:24:12,149 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:12,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82419426] [2023-12-02 14:24:12,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82419426] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:24:12,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122797910] [2023-12-02 14:24:12,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:12,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:12,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:24:12,151 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:24:12,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 14:24:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:12,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:24:12,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:24:12,323 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-02 14:24:12,323 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:24:12,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122797910] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:12,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:24:12,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-02 14:24:12,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194106019] [2023-12-02 14:24:12,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:12,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:24:12,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:12,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:24:12,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-02 14:24:12,326 INFO L87 Difference]: Start difference. First operand 212 states and 313 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 14:24:12,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:12,405 INFO L93 Difference]: Finished difference Result 257 states and 383 transitions. [2023-12-02 14:24:12,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 14:24:12,406 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 92 [2023-12-02 14:24:12,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:12,409 INFO L225 Difference]: With dead ends: 257 [2023-12-02 14:24:12,409 INFO L226 Difference]: Without dead ends: 256 [2023-12-02 14:24:12,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-02 14:24:12,410 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 49 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:12,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 764 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:24:12,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-12-02 14:24:12,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 213. [2023-12-02 14:24:12,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 154 states have (on average 1.4675324675324675) internal successors, (226), 163 states have internal predecessors, (226), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-02 14:24:12,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 314 transitions. [2023-12-02 14:24:12,424 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 314 transitions. Word has length 92 [2023-12-02 14:24:12,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:12,424 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 314 transitions. [2023-12-02 14:24:12,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 14:24:12,425 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 314 transitions. [2023-12-02 14:24:12,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 14:24:12,426 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:12,427 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:12,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 14:24:12,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:12,633 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 14:24:12,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:12,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1125347454, now seen corresponding path program 1 times [2023-12-02 14:24:12,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:12,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196918015] [2023-12-02 14:24:12,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:12,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:12,731 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-02 14:24:12,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:12,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196918015] [2023-12-02 14:24:12,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196918015] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:24:12,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194290907] [2023-12-02 14:24:12,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:12,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:12,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:24:12,733 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:24:12,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 14:24:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:12,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:24:12,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:24:12,900 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-02 14:24:12,900 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:24:12,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194290907] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:12,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:24:12,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-02 14:24:12,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747846800] [2023-12-02 14:24:12,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:12,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:24:12,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:12,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:24:12,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-02 14:24:12,902 INFO L87 Difference]: Start difference. First operand 213 states and 314 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 14:24:12,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:12,994 INFO L93 Difference]: Finished difference Result 220 states and 321 transitions. [2023-12-02 14:24:12,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 14:24:12,995 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 93 [2023-12-02 14:24:12,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:12,997 INFO L225 Difference]: With dead ends: 220 [2023-12-02 14:24:12,997 INFO L226 Difference]: Without dead ends: 219 [2023-12-02 14:24:12,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-02 14:24:12,998 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 19 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:12,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 651 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:24:12,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-12-02 14:24:13,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 214. [2023-12-02 14:24:13,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 155 states have (on average 1.4645161290322581) internal successors, (227), 164 states have internal predecessors, (227), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-02 14:24:13,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 315 transitions. [2023-12-02 14:24:13,009 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 315 transitions. Word has length 93 [2023-12-02 14:24:13,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:13,010 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 315 transitions. [2023-12-02 14:24:13,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 14:24:13,010 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 315 transitions. [2023-12-02 14:24:13,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-02 14:24:13,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:13,012 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:13,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-02 14:24:13,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-02 14:24:13,213 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 14:24:13,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:13,213 INFO L85 PathProgramCache]: Analyzing trace with hash -226612479, now seen corresponding path program 1 times [2023-12-02 14:24:13,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:13,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814049686] [2023-12-02 14:24:13,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:13,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:13,296 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-02 14:24:13,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:13,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814049686] [2023-12-02 14:24:13,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814049686] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:24:13,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575527779] [2023-12-02 14:24:13,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:13,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:13,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:24:13,298 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:24:13,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-02 14:24:13,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:13,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 14:24:13,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:24:13,488 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-02 14:24:13,489 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:24:13,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575527779] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:13,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:24:13,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2023-12-02 14:24:13,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831251074] [2023-12-02 14:24:13,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:13,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 14:24:13,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:13,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 14:24:13,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-02 14:24:13,491 INFO L87 Difference]: Start difference. First operand 214 states and 315 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-02 14:24:13,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:13,615 INFO L93 Difference]: Finished difference Result 260 states and 386 transitions. [2023-12-02 14:24:13,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 14:24:13,619 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 94 [2023-12-02 14:24:13,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:13,622 INFO L225 Difference]: With dead ends: 260 [2023-12-02 14:24:13,622 INFO L226 Difference]: Without dead ends: 259 [2023-12-02 14:24:13,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-12-02 14:24:13,623 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 71 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:13,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1206 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:24:13,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-12-02 14:24:13,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 213. [2023-12-02 14:24:13,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 155 states have (on average 1.4580645161290322) internal successors, (226), 163 states have internal predecessors, (226), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-02 14:24:13,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 314 transitions. [2023-12-02 14:24:13,637 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 314 transitions. Word has length 94 [2023-12-02 14:24:13,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:13,637 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 314 transitions. [2023-12-02 14:24:13,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-02 14:24:13,638 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 314 transitions. [2023-12-02 14:24:13,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-02 14:24:13,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:13,640 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:13,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-02 14:24:13,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-02 14:24:13,844 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 14:24:13,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:13,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1564948066, now seen corresponding path program 1 times [2023-12-02 14:24:13,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:13,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594784208] [2023-12-02 14:24:13,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:13,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:13,909 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-02 14:24:13,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:13,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594784208] [2023-12-02 14:24:13,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594784208] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:24:13,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532104273] [2023-12-02 14:24:13,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:13,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:13,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:24:13,911 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:24:13,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-02 14:24:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:14,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 14:24:14,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:24:14,093 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-02 14:24:14,093 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:24:14,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532104273] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:14,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:24:14,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2023-12-02 14:24:14,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572571034] [2023-12-02 14:24:14,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:14,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 14:24:14,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:14,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 14:24:14,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-02 14:24:14,095 INFO L87 Difference]: Start difference. First operand 213 states and 314 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-02 14:24:14,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:14,222 INFO L93 Difference]: Finished difference Result 415 states and 620 transitions. [2023-12-02 14:24:14,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 14:24:14,223 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 95 [2023-12-02 14:24:14,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:14,225 INFO L225 Difference]: With dead ends: 415 [2023-12-02 14:24:14,225 INFO L226 Difference]: Without dead ends: 258 [2023-12-02 14:24:14,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-02 14:24:14,227 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 69 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:14,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1050 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:24:14,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2023-12-02 14:24:14,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 216. [2023-12-02 14:24:14,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 158 states have (on average 1.4683544303797469) internal successors, (232), 165 states have internal predecessors, (232), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-02 14:24:14,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 322 transitions. [2023-12-02 14:24:14,238 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 322 transitions. Word has length 95 [2023-12-02 14:24:14,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:14,238 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 322 transitions. [2023-12-02 14:24:14,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-02 14:24:14,238 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 322 transitions. [2023-12-02 14:24:14,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-02 14:24:14,240 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:14,240 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:14,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-02 14:24:14,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-02 14:24:14,441 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 14:24:14,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:14,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1853749483, now seen corresponding path program 1 times [2023-12-02 14:24:14,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:14,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35992539] [2023-12-02 14:24:14,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:14,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:14,528 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-12-02 14:24:14,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:14,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35992539] [2023-12-02 14:24:14,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35992539] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:24:14,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204217331] [2023-12-02 14:24:14,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:14,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:14,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:24:14,530 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:24:14,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 14:24:14,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:14,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:24:14,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:24:14,704 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-02 14:24:14,704 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:24:14,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204217331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:14,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:24:14,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-02 14:24:14,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107368659] [2023-12-02 14:24:14,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:14,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:24:14,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:14,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:24:14,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-02 14:24:14,706 INFO L87 Difference]: Start difference. First operand 216 states and 322 transitions. Second operand has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 14:24:14,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:14,779 INFO L93 Difference]: Finished difference Result 257 states and 386 transitions. [2023-12-02 14:24:14,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 14:24:14,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 99 [2023-12-02 14:24:14,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:14,782 INFO L225 Difference]: With dead ends: 257 [2023-12-02 14:24:14,782 INFO L226 Difference]: Without dead ends: 256 [2023-12-02 14:24:14,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-02 14:24:14,783 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 46 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:14,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 728 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:24:14,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-12-02 14:24:14,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 217. [2023-12-02 14:24:14,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 159 states have (on average 1.4654088050314464) internal successors, (233), 166 states have internal predecessors, (233), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-02 14:24:14,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 323 transitions. [2023-12-02 14:24:14,794 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 323 transitions. Word has length 99 [2023-12-02 14:24:14,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:14,794 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 323 transitions. [2023-12-02 14:24:14,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 14:24:14,795 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 323 transitions. [2023-12-02 14:24:14,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-02 14:24:14,796 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:14,796 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:14,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-02 14:24:14,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-02 14:24:14,997 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 14:24:14,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:14,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1631658790, now seen corresponding path program 1 times [2023-12-02 14:24:14,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:14,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29468462] [2023-12-02 14:24:14,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:14,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:15,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:15,086 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-12-02 14:24:15,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:15,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29468462] [2023-12-02 14:24:15,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29468462] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:24:15,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383461607] [2023-12-02 14:24:15,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:15,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:15,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:24:15,088 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:24:15,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-02 14:24:15,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:15,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:24:15,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:24:15,266 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-02 14:24:15,266 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:24:15,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383461607] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:15,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:24:15,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-02 14:24:15,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130668427] [2023-12-02 14:24:15,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:15,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:24:15,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:15,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:24:15,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-02 14:24:15,268 INFO L87 Difference]: Start difference. First operand 217 states and 323 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 14:24:15,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:15,341 INFO L93 Difference]: Finished difference Result 223 states and 329 transitions. [2023-12-02 14:24:15,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 14:24:15,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 100 [2023-12-02 14:24:15,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:15,344 INFO L225 Difference]: With dead ends: 223 [2023-12-02 14:24:15,344 INFO L226 Difference]: Without dead ends: 222 [2023-12-02 14:24:15,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-02 14:24:15,345 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 15 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:15,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 653 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:24:15,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2023-12-02 14:24:15,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 218. [2023-12-02 14:24:15,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 160 states have (on average 1.4625) internal successors, (234), 167 states have internal predecessors, (234), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-02 14:24:15,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 324 transitions. [2023-12-02 14:24:15,358 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 324 transitions. Word has length 100 [2023-12-02 14:24:15,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:15,358 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 324 transitions. [2023-12-02 14:24:15,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 14:24:15,359 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 324 transitions. [2023-12-02 14:24:15,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-02 14:24:15,360 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:15,361 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:15,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-12-02 14:24:15,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-02 14:24:15,561 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 14:24:15,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:15,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1109053945, now seen corresponding path program 1 times [2023-12-02 14:24:15,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:15,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773106439] [2023-12-02 14:24:15,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:15,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:15,646 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-12-02 14:24:15,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:15,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773106439] [2023-12-02 14:24:15,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773106439] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:24:15,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027026322] [2023-12-02 14:24:15,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:15,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:15,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:24:15,648 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:24:15,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-02 14:24:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:15,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 14:24:15,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:24:15,853 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-02 14:24:15,853 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:24:15,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027026322] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:15,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:24:15,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2023-12-02 14:24:15,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189818125] [2023-12-02 14:24:15,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:15,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 14:24:15,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:15,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 14:24:15,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-02 14:24:15,855 INFO L87 Difference]: Start difference. First operand 218 states and 324 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-02 14:24:15,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:15,979 INFO L93 Difference]: Finished difference Result 260 states and 389 transitions. [2023-12-02 14:24:15,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 14:24:15,979 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 101 [2023-12-02 14:24:15,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:15,982 INFO L225 Difference]: With dead ends: 260 [2023-12-02 14:24:15,982 INFO L226 Difference]: Without dead ends: 259 [2023-12-02 14:24:15,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-12-02 14:24:15,983 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 104 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:15,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1014 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:24:15,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-12-02 14:24:15,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 219. [2023-12-02 14:24:15,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 161 states have (on average 1.4596273291925466) internal successors, (235), 168 states have internal predecessors, (235), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-02 14:24:15,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 325 transitions. [2023-12-02 14:24:15,996 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 325 transitions. Word has length 101 [2023-12-02 14:24:15,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:15,996 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 325 transitions. [2023-12-02 14:24:15,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-02 14:24:15,997 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 325 transitions. [2023-12-02 14:24:15,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-02 14:24:15,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:15,999 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:16,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-12-02 14:24:16,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-02 14:24:16,205 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 14:24:16,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:16,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1442769969, now seen corresponding path program 1 times [2023-12-02 14:24:16,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:16,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141073845] [2023-12-02 14:24:16,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:16,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:16,268 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-12-02 14:24:16,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:16,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141073845] [2023-12-02 14:24:16,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141073845] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:24:16,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412905775] [2023-12-02 14:24:16,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:16,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:16,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:24:16,270 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:24:16,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-02 14:24:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:16,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 14:24:16,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:24:16,455 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-02 14:24:16,455 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:24:16,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412905775] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:16,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:24:16,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2023-12-02 14:24:16,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982544129] [2023-12-02 14:24:16,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:16,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 14:24:16,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:16,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 14:24:16,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-02 14:24:16,457 INFO L87 Difference]: Start difference. First operand 219 states and 325 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-02 14:24:16,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:16,577 INFO L93 Difference]: Finished difference Result 264 states and 395 transitions. [2023-12-02 14:24:16,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 14:24:16,577 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 101 [2023-12-02 14:24:16,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:16,580 INFO L225 Difference]: With dead ends: 264 [2023-12-02 14:24:16,580 INFO L226 Difference]: Without dead ends: 263 [2023-12-02 14:24:16,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-12-02 14:24:16,581 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 58 mSDsluCounter, 955 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:16,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 1223 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:24:16,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2023-12-02 14:24:16,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 224. [2023-12-02 14:24:16,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 165 states have (on average 1.4545454545454546) internal successors, (240), 172 states have internal predecessors, (240), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-02 14:24:16,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 332 transitions. [2023-12-02 14:24:16,592 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 332 transitions. Word has length 101 [2023-12-02 14:24:16,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:16,592 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 332 transitions. [2023-12-02 14:24:16,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-02 14:24:16,592 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 332 transitions. [2023-12-02 14:24:16,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-02 14:24:16,594 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:16,594 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:16,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-12-02 14:24:16,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-02 14:24:16,795 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 14:24:16,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:16,795 INFO L85 PathProgramCache]: Analyzing trace with hash 20934262, now seen corresponding path program 1 times [2023-12-02 14:24:16,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:16,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324867963] [2023-12-02 14:24:16,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:16,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:16,878 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-12-02 14:24:16,878 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:16,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324867963] [2023-12-02 14:24:16,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324867963] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:24:16,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324178236] [2023-12-02 14:24:16,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:16,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:16,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:24:16,879 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:24:16,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-02 14:24:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:17,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 14:24:17,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:24:17,069 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-02 14:24:17,070 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:24:17,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324178236] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:17,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:24:17,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2023-12-02 14:24:17,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922106660] [2023-12-02 14:24:17,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:17,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 14:24:17,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:17,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 14:24:17,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-02 14:24:17,072 INFO L87 Difference]: Start difference. First operand 224 states and 332 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-02 14:24:17,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:17,200 INFO L93 Difference]: Finished difference Result 259 states and 386 transitions. [2023-12-02 14:24:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 14:24:17,201 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 102 [2023-12-02 14:24:17,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:17,203 INFO L225 Difference]: With dead ends: 259 [2023-12-02 14:24:17,204 INFO L226 Difference]: Without dead ends: 258 [2023-12-02 14:24:17,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-02 14:24:17,205 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 63 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:17,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1040 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:24:17,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2023-12-02 14:24:17,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 224. [2023-12-02 14:24:17,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 165 states have (on average 1.4545454545454546) internal successors, (240), 172 states have internal predecessors, (240), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-02 14:24:17,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 332 transitions. [2023-12-02 14:24:17,230 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 332 transitions. Word has length 102 [2023-12-02 14:24:17,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:17,230 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 332 transitions. [2023-12-02 14:24:17,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-02 14:24:17,230 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 332 transitions. [2023-12-02 14:24:17,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-02 14:24:17,232 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:17,232 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:17,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-12-02 14:24:17,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:17,433 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 14:24:17,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:17,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1776196414, now seen corresponding path program 1 times [2023-12-02 14:24:17,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:17,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951375569] [2023-12-02 14:24:17,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:17,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:17,511 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-12-02 14:24:17,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:17,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951375569] [2023-12-02 14:24:17,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951375569] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:24:17,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334629270] [2023-12-02 14:24:17,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:17,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:17,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:24:17,513 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:24:17,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-02 14:24:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:17,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 14:24:17,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:24:17,700 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-02 14:24:17,700 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:24:17,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334629270] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:17,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:24:17,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2023-12-02 14:24:17,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498082340] [2023-12-02 14:24:17,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:17,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 14:24:17,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:17,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 14:24:17,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-02 14:24:17,702 INFO L87 Difference]: Start difference. First operand 224 states and 332 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-02 14:24:17,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:17,836 INFO L93 Difference]: Finished difference Result 431 states and 648 transitions. [2023-12-02 14:24:17,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 14:24:17,837 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 102 [2023-12-02 14:24:17,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:17,839 INFO L225 Difference]: With dead ends: 431 [2023-12-02 14:24:17,839 INFO L226 Difference]: Without dead ends: 263 [2023-12-02 14:24:17,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-02 14:24:17,841 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 55 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:17,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1240 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:24:17,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2023-12-02 14:24:17,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 220. [2023-12-02 14:24:17,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 162 states have (on average 1.4567901234567902) internal successors, (236), 169 states have internal predecessors, (236), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-02 14:24:17,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 326 transitions. [2023-12-02 14:24:17,855 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 326 transitions. Word has length 102 [2023-12-02 14:24:17,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:17,855 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 326 transitions. [2023-12-02 14:24:17,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-02 14:24:17,855 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 326 transitions. [2023-12-02 14:24:17,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-02 14:24:17,857 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:17,857 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:17,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-12-02 14:24:18,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:18,058 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 14:24:18,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:18,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1133547029, now seen corresponding path program 1 times [2023-12-02 14:24:18,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:18,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899289004] [2023-12-02 14:24:18,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:18,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:18,138 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-12-02 14:24:18,138 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:18,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899289004] [2023-12-02 14:24:18,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899289004] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:24:18,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003163931] [2023-12-02 14:24:18,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:18,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:18,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:24:18,140 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:24:18,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-02 14:24:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:18,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 14:24:18,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:24:18,356 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-02 14:24:18,356 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:24:18,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003163931] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:18,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:24:18,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2023-12-02 14:24:18,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046886300] [2023-12-02 14:24:18,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:18,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 14:24:18,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:18,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 14:24:18,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-02 14:24:18,358 INFO L87 Difference]: Start difference. First operand 220 states and 326 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-02 14:24:18,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:18,531 INFO L93 Difference]: Finished difference Result 460 states and 697 transitions. [2023-12-02 14:24:18,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 14:24:18,531 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 103 [2023-12-02 14:24:18,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:18,534 INFO L225 Difference]: With dead ends: 460 [2023-12-02 14:24:18,534 INFO L226 Difference]: Without dead ends: 296 [2023-12-02 14:24:18,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-12-02 14:24:18,536 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 153 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:18,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 1418 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:24:18,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2023-12-02 14:24:18,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 223. [2023-12-02 14:24:18,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 166 states have (on average 1.4578313253012047) internal successors, (242), 172 states have internal predecessors, (242), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-02 14:24:18,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 332 transitions. [2023-12-02 14:24:18,546 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 332 transitions. Word has length 103 [2023-12-02 14:24:18,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:18,547 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 332 transitions. [2023-12-02 14:24:18,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-02 14:24:18,547 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 332 transitions. [2023-12-02 14:24:18,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-02 14:24:18,548 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:24:18,548 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:18,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-12-02 14:24:18,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-12-02 14:24:18,749 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-12-02 14:24:18,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:24:18,750 INFO L85 PathProgramCache]: Analyzing trace with hash 780219866, now seen corresponding path program 1 times [2023-12-02 14:24:18,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:24:18,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885087131] [2023-12-02 14:24:18,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:18,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:24:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:18,838 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-12-02 14:24:18,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:24:18,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885087131] [2023-12-02 14:24:18,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885087131] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:24:18,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830126395] [2023-12-02 14:24:18,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:24:18,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:18,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:24:18,840 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:24:18,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-02 14:24:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:24:18,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 14:24:18,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:24:19,053 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-02 14:24:19,053 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:24:19,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830126395] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:24:19,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:24:19,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2023-12-02 14:24:19,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015206292] [2023-12-02 14:24:19,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:24:19,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 14:24:19,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:24:19,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 14:24:19,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-02 14:24:19,055 INFO L87 Difference]: Start difference. First operand 223 states and 332 transitions. Second operand has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-02 14:24:19,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:24:19,234 INFO L93 Difference]: Finished difference Result 302 states and 457 transitions. [2023-12-02 14:24:19,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-02 14:24:19,235 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 104 [2023-12-02 14:24:19,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:24:19,235 INFO L225 Difference]: With dead ends: 302 [2023-12-02 14:24:19,235 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 14:24:19,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2023-12-02 14:24:19,237 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 130 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1565 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:24:19,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1565 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:24:19,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 14:24:19,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 14:24:19,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:24:19,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 14:24:19,239 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2023-12-02 14:24:19,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:24:19,239 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 14:24:19,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-02 14:24:19,239 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 14:24:19,239 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 14:24:19,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-12-02 14:24:19,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-12-02 14:24:19,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-12-02 14:24:19,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-12-02 14:24:19,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-12-02 14:24:19,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-12-02 14:24:19,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-12-02 14:24:19,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location add_history_typeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-12-02 14:24:19,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-12-02 14:24:19,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:24:19,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 14:24:19,612 INFO L902 garLoopResultBuilder]: At program point L119(line 119) the Hoare annotation is: true [2023-12-02 14:24:19,612 INFO L899 garLoopResultBuilder]: For program point L119-1(line 119) no Hoare annotation was computed. [2023-12-02 14:24:19,612 INFO L899 garLoopResultBuilder]: For program point read_history_int8FINAL(lines 104 123) no Hoare annotation was computed. [2023-12-02 14:24:19,613 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 120) no Hoare annotation was computed. [2023-12-02 14:24:19,613 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 104 123) the Hoare annotation is: true [2023-12-02 14:24:19,613 INFO L899 garLoopResultBuilder]: For program point read_history_int8EXIT(lines 104 123) no Hoare annotation was computed. [2023-12-02 14:24:19,613 INFO L895 garLoopResultBuilder]: At program point L159(line 159) the Hoare annotation is: (<= |read_history_bool_#in~history_id| read_history_bool_~history_id) [2023-12-02 14:24:19,613 INFO L899 garLoopResultBuilder]: For program point L159-1(line 159) no Hoare annotation was computed. [2023-12-02 14:24:19,613 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 160) no Hoare annotation was computed. [2023-12-02 14:24:19,613 INFO L899 garLoopResultBuilder]: For program point read_history_boolFINAL(lines 124 163) no Hoare annotation was computed. [2023-12-02 14:24:19,613 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 160) no Hoare annotation was computed. [2023-12-02 14:24:19,614 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 124 163) the Hoare annotation is: true [2023-12-02 14:24:19,614 INFO L899 garLoopResultBuilder]: For program point read_history_boolEXIT(lines 124 163) no Hoare annotation was computed. [2023-12-02 14:24:19,614 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 160) no Hoare annotation was computed. [2023-12-02 14:24:19,614 INFO L899 garLoopResultBuilder]: For program point assertEXIT(lines 526 537) no Hoare annotation was computed. [2023-12-02 14:24:19,614 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 526 537) the Hoare annotation is: true [2023-12-02 14:24:19,614 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 277) no Hoare annotation was computed. [2023-12-02 14:24:19,614 INFO L899 garLoopResultBuilder]: For program point L217(lines 217 219) no Hoare annotation was computed. [2023-12-02 14:24:19,614 INFO L899 garLoopResultBuilder]: For program point L267(lines 267 301) no Hoare annotation was computed. [2023-12-02 14:24:19,614 INFO L899 garLoopResultBuilder]: For program point L284(lines 284 294) no Hoare annotation was computed. [2023-12-02 14:24:19,614 INFO L902 garLoopResultBuilder]: At program point L499(line 499) the Hoare annotation is: true [2023-12-02 14:24:19,615 INFO L899 garLoopResultBuilder]: For program point L499-1(line 499) no Hoare annotation was computed. [2023-12-02 14:24:19,615 INFO L902 garLoopResultBuilder]: At program point L268(line 268) the Hoare annotation is: true [2023-12-02 14:24:19,615 INFO L899 garLoopResultBuilder]: For program point L268-1(line 268) no Hoare annotation was computed. [2023-12-02 14:24:19,615 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 175) no Hoare annotation was computed. [2023-12-02 14:24:19,615 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 291) no Hoare annotation was computed. [2023-12-02 14:24:19,615 INFO L902 garLoopResultBuilder]: At program point L467(line 467) the Hoare annotation is: true [2023-12-02 14:24:19,615 INFO L899 garLoopResultBuilder]: For program point L467-1(lines 444 468) no Hoare annotation was computed. [2023-12-02 14:24:19,615 INFO L899 garLoopResultBuilder]: For program point L269(lines 269 300) no Hoare annotation was computed. [2023-12-02 14:24:19,615 INFO L899 garLoopResultBuilder]: For program point L451(lines 451 468) no Hoare annotation was computed. [2023-12-02 14:24:19,615 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 288) no Hoare annotation was computed. [2023-12-02 14:24:19,615 INFO L902 garLoopResultBuilder]: At program point L220(line 220) the Hoare annotation is: true [2023-12-02 14:24:19,616 INFO L899 garLoopResultBuilder]: For program point L220-1(line 220) no Hoare annotation was computed. [2023-12-02 14:24:19,616 INFO L899 garLoopResultBuilder]: For program point L303(line 303) no Hoare annotation was computed. [2023-12-02 14:24:19,616 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 223) no Hoare annotation was computed. [2023-12-02 14:24:19,616 INFO L899 garLoopResultBuilder]: For program point L304(lines 304 322) no Hoare annotation was computed. [2023-12-02 14:24:19,616 INFO L895 garLoopResultBuilder]: At program point L271(line 271) the Hoare annotation is: (= |ULTIMATE.start_check_~temp_count~0#1| 0) [2023-12-02 14:24:19,616 INFO L902 garLoopResultBuilder]: At program point L304-1(lines 304 322) the Hoare annotation is: true [2023-12-02 14:24:19,616 INFO L899 garLoopResultBuilder]: For program point L271-1(line 271) no Hoare annotation was computed. [2023-12-02 14:24:19,616 INFO L902 garLoopResultBuilder]: At program point L305(line 305) the Hoare annotation is: true [2023-12-02 14:24:19,616 INFO L899 garLoopResultBuilder]: For program point L272(lines 272 274) no Hoare annotation was computed. [2023-12-02 14:24:19,617 INFO L899 garLoopResultBuilder]: For program point L305-1(line 305) no Hoare annotation was computed. [2023-12-02 14:24:19,617 INFO L895 garLoopResultBuilder]: At program point L272-2(lines 272 274) the Hoare annotation is: (or (= |ULTIMATE.start_check_~temp_count~0#1| 1) (= |ULTIMATE.start_check_~temp_count~0#1| 0)) [2023-12-02 14:24:19,617 INFO L902 garLoopResultBuilder]: At program point L520(line 520) the Hoare annotation is: true [2023-12-02 14:24:19,617 INFO L902 garLoopResultBuilder]: At program point L520-1(lines 507 522) the Hoare annotation is: true [2023-12-02 14:24:19,617 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 14:24:19,617 INFO L899 garLoopResultBuilder]: For program point L306(lines 306 321) no Hoare annotation was computed. [2023-12-02 14:24:19,617 INFO L899 garLoopResultBuilder]: For program point L273(line 273) no Hoare annotation was computed. [2023-12-02 14:24:19,617 INFO L899 garLoopResultBuilder]: For program point L273-1(line 273) no Hoare annotation was computed. [2023-12-02 14:24:19,617 INFO L902 garLoopResultBuilder]: At program point L174(line 174) the Hoare annotation is: true [2023-12-02 14:24:19,617 INFO L899 garLoopResultBuilder]: For program point L174-1(lines 164 178) no Hoare annotation was computed. [2023-12-02 14:24:19,618 INFO L902 garLoopResultBuilder]: At program point L422-2(lines 416 426) the Hoare annotation is: true [2023-12-02 14:24:19,618 INFO L899 garLoopResultBuilder]: For program point L323(line 323) no Hoare annotation was computed. [2023-12-02 14:24:19,618 INFO L902 garLoopResultBuilder]: At program point L224(line 224) the Hoare annotation is: true [2023-12-02 14:24:19,618 INFO L899 garLoopResultBuilder]: For program point L224-1(line 224) no Hoare annotation was computed. [2023-12-02 14:24:19,618 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 277) no Hoare annotation was computed. [2023-12-02 14:24:19,618 INFO L902 garLoopResultBuilder]: At program point L307(line 307) the Hoare annotation is: true [2023-12-02 14:24:19,618 INFO L899 garLoopResultBuilder]: For program point L307-1(line 307) no Hoare annotation was computed. [2023-12-02 14:24:19,618 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 335) no Hoare annotation was computed. [2023-12-02 14:24:19,618 INFO L899 garLoopResultBuilder]: For program point L324-1(lines 324 335) no Hoare annotation was computed. [2023-12-02 14:24:19,618 INFO L902 garLoopResultBuilder]: At program point L258-2(lines 252 262) the Hoare annotation is: true [2023-12-02 14:24:19,619 INFO L899 garLoopResultBuilder]: For program point L308(lines 308 320) no Hoare annotation was computed. [2023-12-02 14:24:19,619 INFO L899 garLoopResultBuilder]: For program point L275(line 275) no Hoare annotation was computed. [2023-12-02 14:24:19,619 INFO L902 garLoopResultBuilder]: At program point L391-2(lines 385 395) the Hoare annotation is: true [2023-12-02 14:24:19,619 INFO L902 garLoopResultBuilder]: At program point L325(line 325) the Hoare annotation is: true [2023-12-02 14:24:19,619 INFO L899 garLoopResultBuilder]: For program point L325-1(line 325) no Hoare annotation was computed. [2023-12-02 14:24:19,619 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 273) no Hoare annotation was computed. [2023-12-02 14:24:19,619 INFO L902 garLoopResultBuilder]: At program point L309(line 309) the Hoare annotation is: true [2023-12-02 14:24:19,619 INFO L899 garLoopResultBuilder]: For program point L276(lines 276 278) no Hoare annotation was computed. [2023-12-02 14:24:19,619 INFO L899 garLoopResultBuilder]: For program point L309-1(line 309) no Hoare annotation was computed. [2023-12-02 14:24:19,619 INFO L895 garLoopResultBuilder]: At program point L276-2(lines 276 278) the Hoare annotation is: (or (= 2 |ULTIMATE.start_check_~temp_count~0#1|) (= |ULTIMATE.start_check_~temp_count~0#1| 1) (= |ULTIMATE.start_check_~temp_count~0#1| 0)) [2023-12-02 14:24:19,620 INFO L899 garLoopResultBuilder]: For program point L458(lines 458 468) no Hoare annotation was computed. [2023-12-02 14:24:19,620 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 334) no Hoare annotation was computed. [2023-12-02 14:24:19,620 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 273) no Hoare annotation was computed. [2023-12-02 14:24:19,620 INFO L902 garLoopResultBuilder]: At program point L409(line 409) the Hoare annotation is: true [2023-12-02 14:24:19,620 INFO L899 garLoopResultBuilder]: For program point L409-1(lines 407 430) no Hoare annotation was computed. [2023-12-02 14:24:19,620 INFO L899 garLoopResultBuilder]: For program point L310(lines 310 317) no Hoare annotation was computed. [2023-12-02 14:24:19,620 INFO L899 garLoopResultBuilder]: For program point L277(line 277) no Hoare annotation was computed. [2023-12-02 14:24:19,620 INFO L899 garLoopResultBuilder]: For program point L277-1(line 277) no Hoare annotation was computed. [2023-12-02 14:24:19,620 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 14:24:19,620 INFO L902 garLoopResultBuilder]: At program point L327(line 327) the Hoare annotation is: true [2023-12-02 14:24:19,620 INFO L902 garLoopResultBuilder]: At program point L360-2(lines 354 364) the Hoare annotation is: true [2023-12-02 14:24:19,621 INFO L899 garLoopResultBuilder]: For program point L327-1(line 327) no Hoare annotation was computed. [2023-12-02 14:24:19,621 INFO L902 garLoopResultBuilder]: At program point L311(line 311) the Hoare annotation is: true [2023-12-02 14:24:19,621 INFO L899 garLoopResultBuilder]: For program point L311-1(line 311) no Hoare annotation was computed. [2023-12-02 14:24:19,621 INFO L902 garLoopResultBuilder]: At program point L212(line 212) the Hoare annotation is: true [2023-12-02 14:24:19,621 INFO L899 garLoopResultBuilder]: For program point L212-1(line 212) no Hoare annotation was computed. [2023-12-02 14:24:19,621 INFO L899 garLoopResultBuilder]: For program point L427(line 427) no Hoare annotation was computed. [2023-12-02 14:24:19,621 INFO L899 garLoopResultBuilder]: For program point L328(lines 328 333) no Hoare annotation was computed. [2023-12-02 14:24:19,621 INFO L899 garLoopResultBuilder]: For program point gate1_each_pals_period_returnLabel#1(lines 339 369) no Hoare annotation was computed. [2023-12-02 14:24:19,621 INFO L899 garLoopResultBuilder]: For program point L444(lines 444 468) no Hoare annotation was computed. [2023-12-02 14:24:19,621 INFO L902 garLoopResultBuilder]: At program point L378(line 378) the Hoare annotation is: true [2023-12-02 14:24:19,621 INFO L899 garLoopResultBuilder]: For program point L378-1(lines 376 399) no Hoare annotation was computed. [2023-12-02 14:24:19,622 INFO L899 garLoopResultBuilder]: For program point L312(lines 312 314) no Hoare annotation was computed. [2023-12-02 14:24:19,622 INFO L899 garLoopResultBuilder]: For program point L279(line 279) no Hoare annotation was computed. [2023-12-02 14:24:19,622 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 215) no Hoare annotation was computed. [2023-12-02 14:24:19,622 INFO L899 garLoopResultBuilder]: For program point L461(lines 461 468) no Hoare annotation was computed. [2023-12-02 14:24:19,622 INFO L902 garLoopResultBuilder]: At program point L329(line 329) the Hoare annotation is: true [2023-12-02 14:24:19,622 INFO L899 garLoopResultBuilder]: For program point L329-1(line 329) no Hoare annotation was computed. [2023-12-02 14:24:19,622 INFO L902 garLoopResultBuilder]: At program point L263(line 263) the Hoare annotation is: true [2023-12-02 14:24:19,622 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 281) no Hoare annotation was computed. [2023-12-02 14:24:19,622 INFO L899 garLoopResultBuilder]: For program point L280(lines 280 282) no Hoare annotation was computed. [2023-12-02 14:24:19,622 INFO L899 garLoopResultBuilder]: For program point L280-2(lines 269 300) no Hoare annotation was computed. [2023-12-02 14:24:19,622 INFO L899 garLoopResultBuilder]: For program point L396(line 396) no Hoare annotation was computed. [2023-12-02 14:24:19,623 INFO L899 garLoopResultBuilder]: For program point L330(lines 330 332) no Hoare annotation was computed. [2023-12-02 14:24:19,623 INFO L899 garLoopResultBuilder]: For program point L264(line 264) no Hoare annotation was computed. [2023-12-02 14:24:19,623 INFO L899 garLoopResultBuilder]: For program point $Ultimate##108(lines 297 299) no Hoare annotation was computed. [2023-12-02 14:24:19,623 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 281) no Hoare annotation was computed. [2023-12-02 14:24:19,623 INFO L902 garLoopResultBuilder]: At program point L347(line 347) the Hoare annotation is: true [2023-12-02 14:24:19,623 INFO L899 garLoopResultBuilder]: For program point L347-1(lines 345 368) no Hoare annotation was computed. [2023-12-02 14:24:19,623 INFO L899 garLoopResultBuilder]: For program point L281(line 281) no Hoare annotation was computed. [2023-12-02 14:24:19,623 INFO L899 garLoopResultBuilder]: For program point L281-1(line 281) no Hoare annotation was computed. [2023-12-02 14:24:19,623 INFO L899 garLoopResultBuilder]: For program point check_returnLabel#1(lines 231 338) no Hoare annotation was computed. [2023-12-02 14:24:19,623 INFO L899 garLoopResultBuilder]: For program point L265(lines 265 302) no Hoare annotation was computed. [2023-12-02 14:24:19,623 INFO L902 garLoopResultBuilder]: At program point L265-1(lines 265 302) the Hoare annotation is: true [2023-12-02 14:24:19,624 INFO L899 garLoopResultBuilder]: For program point gate3_each_pals_period_returnLabel#1(lines 401 431) no Hoare annotation was computed. [2023-12-02 14:24:19,624 INFO L902 garLoopResultBuilder]: At program point L216(line 216) the Hoare annotation is: true [2023-12-02 14:24:19,624 INFO L899 garLoopResultBuilder]: For program point L216-1(line 216) no Hoare annotation was computed. [2023-12-02 14:24:19,624 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 468) no Hoare annotation was computed. [2023-12-02 14:24:19,624 INFO L899 garLoopResultBuilder]: For program point init_returnLabel#1(lines 204 230) no Hoare annotation was computed. [2023-12-02 14:24:19,624 INFO L899 garLoopResultBuilder]: For program point gate2_each_pals_period_returnLabel#1(lines 370 400) no Hoare annotation was computed. [2023-12-02 14:24:19,624 INFO L899 garLoopResultBuilder]: For program point L365(line 365) no Hoare annotation was computed. [2023-12-02 14:24:19,624 INFO L902 garLoopResultBuilder]: At program point L266(line 266) the Hoare annotation is: true [2023-12-02 14:24:19,624 INFO L899 garLoopResultBuilder]: For program point L266-1(line 266) no Hoare annotation was computed. [2023-12-02 14:24:19,624 INFO L899 garLoopResultBuilder]: For program point L93(lines 93 98) no Hoare annotation was computed. [2023-12-02 14:24:19,624 INFO L899 garLoopResultBuilder]: For program point L93-2(lines 75 98) no Hoare annotation was computed. [2023-12-02 14:24:19,624 INFO L899 garLoopResultBuilder]: For program point L89(lines 89 91) no Hoare annotation was computed. [2023-12-02 14:24:19,624 INFO L899 garLoopResultBuilder]: For program point L81(lines 81 98) no Hoare annotation was computed. [2023-12-02 14:24:19,625 INFO L899 garLoopResultBuilder]: For program point L77(lines 77 79) no Hoare annotation was computed. [2023-12-02 14:24:19,625 INFO L899 garLoopResultBuilder]: For program point add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 99) no Hoare annotation was computed. [2023-12-02 14:24:19,625 INFO L895 garLoopResultBuilder]: At program point L94(line 94) the Hoare annotation is: (and (not (= |add_history_type_#in~history_id| 0)) (<= 0 (+ add_history_type_~var~0 2147483648)) (<= add_history_type_~var~0 2)) [2023-12-02 14:24:19,625 INFO L899 garLoopResultBuilder]: For program point L94-1(line 94) no Hoare annotation was computed. [2023-12-02 14:24:19,625 INFO L895 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (and (not (= |add_history_type_#in~history_id| 0)) (<= 0 (+ add_history_type_~var~0 2147483648)) (<= add_history_type_~var~0 2)) [2023-12-02 14:24:19,625 INFO L899 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2023-12-02 14:24:19,625 INFO L895 garLoopResultBuilder]: At program point L74-2(lines 74 100) the Hoare annotation is: (and (< 0 (+ add_history_type_~var~0 2147483649)) (or (not (= |add_history_type_#in~history_id| 0)) (= add_history_type_~history_id 0))) [2023-12-02 14:24:19,625 INFO L899 garLoopResultBuilder]: For program point L99(line 99) no Hoare annotation was computed. [2023-12-02 14:24:19,626 INFO L899 garLoopResultBuilder]: For program point L99-1(line 99) no Hoare annotation was computed. [2023-12-02 14:24:19,626 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 97) no Hoare annotation was computed. [2023-12-02 14:24:19,626 INFO L899 garLoopResultBuilder]: For program point L87(lines 87 98) no Hoare annotation was computed. [2023-12-02 14:24:19,626 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 85) no Hoare annotation was computed. [2023-12-02 14:24:19,626 INFO L899 garLoopResultBuilder]: For program point add_history_typeEXIT(lines 60 103) no Hoare annotation was computed. [2023-12-02 14:24:19,626 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 98) no Hoare annotation was computed. [2023-12-02 14:24:19,626 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 60 103) the Hoare annotation is: true [2023-12-02 14:24:19,626 INFO L895 garLoopResultBuilder]: At program point L88(line 88) the Hoare annotation is: (and (not (= |add_history_type_#in~history_id| 0)) (<= 0 (+ add_history_type_~var~0 2147483648)) (<= add_history_type_~var~0 2)) [2023-12-02 14:24:19,626 INFO L899 garLoopResultBuilder]: For program point L88-1(line 88) no Hoare annotation was computed. [2023-12-02 14:24:19,626 INFO L895 garLoopResultBuilder]: At program point L76(line 76) the Hoare annotation is: (and (<= 0 (+ add_history_type_~var~0 2147483648)) (<= add_history_type_~var~0 2) (= add_history_type_~history_id 0)) [2023-12-02 14:24:19,627 INFO L899 garLoopResultBuilder]: For program point L76-1(line 76) no Hoare annotation was computed. [2023-12-02 14:24:19,627 INFO L899 garLoopResultBuilder]: For program point add_history_typeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 99) no Hoare annotation was computed. [2023-12-02 14:24:19,627 INFO L899 garLoopResultBuilder]: For program point add_history_typeFINAL(lines 60 103) no Hoare annotation was computed. [2023-12-02 14:24:19,627 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 36 38) the Hoare annotation is: true [2023-12-02 14:24:19,627 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 36 38) no Hoare annotation was computed. [2023-12-02 14:24:19,627 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 200) no Hoare annotation was computed. [2023-12-02 14:24:19,627 INFO L899 garLoopResultBuilder]: For program point write_history_boolEXIT(lines 179 203) no Hoare annotation was computed. [2023-12-02 14:24:19,627 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 200) no Hoare annotation was computed. [2023-12-02 14:24:19,627 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 179 203) the Hoare annotation is: true [2023-12-02 14:24:19,627 INFO L895 garLoopResultBuilder]: At program point L199(line 199) the Hoare annotation is: (<= |write_history_bool_#in~history_id| write_history_bool_~history_id) [2023-12-02 14:24:19,627 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 179 203) no Hoare annotation was computed. [2023-12-02 14:24:19,628 INFO L899 garLoopResultBuilder]: For program point L194(lines 194 200) no Hoare annotation was computed. [2023-12-02 14:24:19,631 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:24:19,633 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 14:24:19,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:24:19 BoogieIcfgContainer [2023-12-02 14:24:19,644 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 14:24:19,645 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 14:24:19,645 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 14:24:19,645 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 14:24:19,645 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:24:06" (3/4) ... [2023-12-02 14:24:19,647 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 14:24:19,650 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_history_int8 [2023-12-02 14:24:19,650 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_history_bool [2023-12-02 14:24:19,650 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assert [2023-12-02 14:24:19,650 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure add_history_type [2023-12-02 14:24:19,650 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-12-02 14:24:19,650 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure write_history_bool [2023-12-02 14:24:19,665 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2023-12-02 14:24:19,667 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-12-02 14:24:19,668 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 14:24:19,669 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 14:24:19,694 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0 < (var + 2147483649)) && (!((\old(history_id) == 0)) || (history_id == 0))) [2023-12-02 14:24:19,749 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0 < (var + 2147483649)) && (!((\old(history_id) == 0)) || (history_id == 0))) [2023-12-02 14:24:19,799 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 14:24:19,800 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 14:24:19,800 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 14:24:19,801 INFO L158 Benchmark]: Toolchain (without parser) took 14363.28ms. Allocated memory was 169.9MB in the beginning and 255.9MB in the end (delta: 86.0MB). Free memory was 127.8MB in the beginning and 125.4MB in the end (delta: 2.4MB). Peak memory consumption was 88.9MB. Max. memory is 16.1GB. [2023-12-02 14:24:19,801 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 169.9MB. Free memory was 111.6MB in the beginning and 111.4MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:24:19,802 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.32ms. Allocated memory is still 169.9MB. Free memory was 127.3MB in the beginning and 111.6MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 14:24:19,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.73ms. Allocated memory is still 169.9MB. Free memory was 111.6MB in the beginning and 108.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 14:24:19,802 INFO L158 Benchmark]: Boogie Preprocessor took 47.86ms. Allocated memory is still 169.9MB. Free memory was 108.4MB in the beginning and 105.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 14:24:19,803 INFO L158 Benchmark]: RCFGBuilder took 797.92ms. Allocated memory was 169.9MB in the beginning and 211.8MB in the end (delta: 41.9MB). Free memory was 105.8MB in the beginning and 164.8MB in the end (delta: -59.0MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. [2023-12-02 14:24:19,803 INFO L158 Benchmark]: TraceAbstraction took 12941.18ms. Allocated memory was 211.8MB in the beginning and 255.9MB in the end (delta: 44.0MB). Free memory was 163.7MB in the beginning and 136.9MB in the end (delta: 26.8MB). Peak memory consumption was 70.9MB. Max. memory is 16.1GB. [2023-12-02 14:24:19,803 INFO L158 Benchmark]: Witness Printer took 155.77ms. Allocated memory is still 255.9MB. Free memory was 136.9MB in the beginning and 125.4MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 14:24:19,805 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 169.9MB. Free memory was 111.6MB in the beginning and 111.4MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.32ms. Allocated memory is still 169.9MB. Free memory was 127.3MB in the beginning and 111.6MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.73ms. Allocated memory is still 169.9MB. Free memory was 111.6MB in the beginning and 108.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.86ms. Allocated memory is still 169.9MB. Free memory was 108.4MB in the beginning and 105.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 797.92ms. Allocated memory was 169.9MB in the beginning and 211.8MB in the end (delta: 41.9MB). Free memory was 105.8MB in the beginning and 164.8MB in the end (delta: -59.0MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. * TraceAbstraction took 12941.18ms. Allocated memory was 211.8MB in the beginning and 255.9MB in the end (delta: 44.0MB). Free memory was 163.7MB in the beginning and 136.9MB in the end (delta: 26.8MB). Peak memory consumption was 70.9MB. Max. memory is 16.1GB. * Witness Printer took 155.77ms. Allocated memory is still 255.9MB. Free memory was 136.9MB in the beginning and 125.4MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. 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: 273]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 273]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 277]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 277]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 281]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 281]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: 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 7 procedures, 158 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 12.9s, OverallIterations: 22, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1248 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1093 mSDsluCounter, 18910 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13550 mSDsCounter, 120 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2243 IncrementalHoareTripleChecker+Invalid, 2363 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 120 mSolverCounterUnsat, 5360 mSDtfsCounter, 2243 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1838 GetRequests, 1677 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=224occurred in iteration=18, InterpolantAutomatonStates: 127, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 22 MinimizatonAttempts, 501 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 756 PreInvPairs, 832 NumberOfFragments, 126 HoareAnnotationTreeSize, 756 FomulaSimplifications, 273 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 45 FomulaSimplificationsInter, 159 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 3469 NumberOfCodeBlocks, 3469 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 3428 ConstructedInterpolants, 0 QuantifiedInterpolants, 3964 SizeOfPredicates, 29 NumberOfNonLiveVariables, 8687 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 41 InterpolantComputations, 22 PerfectInterpolantSequences, 1665/1690 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 8 specifications checked. All of them hold - InvariantResult [Line: 507]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: ((0 < (var + 2147483649)) && (!((\old(history_id) == 0)) || (history_id == 0))) RESULT: Ultimate proved your program to be correct! [2023-12-02 14:24:19,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76294345-3288-4721-aaba-40b5849364f1/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE