./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/reducercommutativity/rangesum20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/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_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/reducercommutativity/rangesum20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 66b03bf685aae9720ef4af0fb91907139a878375cd48373b4439b53b2302a22a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:39:08,567 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:39:08,630 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 15:39:08,634 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:39:08,635 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:39:08,656 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:39:08,657 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:39:08,658 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:39:08,658 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:39:08,659 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:39:08,659 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:39:08,660 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:39:08,660 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:39:08,661 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:39:08,661 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:39:08,662 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:39:08,662 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:39:08,663 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:39:08,663 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:39:08,664 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:39:08,664 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:39:08,665 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:39:08,666 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:39:08,666 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:39:08,667 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:39:08,667 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:39:08,667 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:39:08,668 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:39:08,668 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:39:08,669 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:39:08,669 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:39:08,669 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:39:08,670 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:39:08,670 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:39:08,670 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:39:08,671 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:39:08,671 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:39:08,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:39:08,671 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:39:08,671 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:39:08,672 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:39:08,672 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:39:08,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:39:08,672 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:39:08,673 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:39:08,673 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:39:08,673 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:39:08,673 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_7fdfbab4-bc69-4396-b29c-bc2d545d12be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66b03bf685aae9720ef4af0fb91907139a878375cd48373b4439b53b2302a22a [2023-12-02 15:39:08,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:39:08,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:39:08,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:39:08,895 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:39:08,896 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:39:08,897 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/reducercommutativity/rangesum20.i [2023-12-02 15:39:11,649 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:39:11,828 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:39:11,829 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/sv-benchmarks/c/reducercommutativity/rangesum20.i [2023-12-02 15:39:11,836 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/data/ac21b85a8/8ad7a7d2d1c140e2baafb2c30c920baa/FLAGbd7d21da7 [2023-12-02 15:39:11,848 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/data/ac21b85a8/8ad7a7d2d1c140e2baafb2c30c920baa [2023-12-02 15:39:11,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:39:11,852 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:39:11,853 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:39:11,853 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:39:11,857 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:39:11,857 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:39:11" (1/1) ... [2023-12-02 15:39:11,858 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14f77b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:11, skipping insertion in model container [2023-12-02 15:39:11,858 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:39:11" (1/1) ... [2023-12-02 15:39:11,878 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:39:12,011 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/sv-benchmarks/c/reducercommutativity/rangesum20.i[1465,1478] [2023-12-02 15:39:12,018 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:39:12,025 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:39:12,045 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/sv-benchmarks/c/reducercommutativity/rangesum20.i[1465,1478] [2023-12-02 15:39:12,046 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:39:12,058 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:39:12,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:12 WrapperNode [2023-12-02 15:39:12,058 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:39:12,059 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:39:12,059 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:39:12,059 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:39:12,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:12" (1/1) ... [2023-12-02 15:39:12,071 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:12" (1/1) ... [2023-12-02 15:39:12,088 INFO L138 Inliner]: procedures = 17, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2023-12-02 15:39:12,088 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:39:12,089 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:39:12,089 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:39:12,089 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:39:12,096 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:12" (1/1) ... [2023-12-02 15:39:12,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:12" (1/1) ... [2023-12-02 15:39:12,099 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:12" (1/1) ... [2023-12-02 15:39:12,099 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:12" (1/1) ... [2023-12-02 15:39:12,106 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:12" (1/1) ... [2023-12-02 15:39:12,110 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:12" (1/1) ... [2023-12-02 15:39:12,111 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:12" (1/1) ... [2023-12-02 15:39:12,112 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:12" (1/1) ... [2023-12-02 15:39:12,115 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:39:12,116 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:39:12,116 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:39:12,116 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:39:12,117 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:12" (1/1) ... [2023-12-02 15:39:12,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:39:12,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:39:12,142 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:39:12,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:39:12,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:39:12,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:39:12,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 15:39:12,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 15:39:12,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:39:12,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:39:12,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 15:39:12,176 INFO L130 BoogieDeclarations]: Found specification of procedure rangesum [2023-12-02 15:39:12,176 INFO L138 BoogieDeclarations]: Found implementation of procedure rangesum [2023-12-02 15:39:12,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 15:39:12,242 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:39:12,244 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:39:12,399 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:39:12,460 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:39:12,460 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-02 15:39:12,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:39:12 BoogieIcfgContainer [2023-12-02 15:39:12,462 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:39:12,464 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:39:12,464 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:39:12,467 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:39:12,467 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:39:11" (1/3) ... [2023-12-02 15:39:12,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521e6dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:39:12, skipping insertion in model container [2023-12-02 15:39:12,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:12" (2/3) ... [2023-12-02 15:39:12,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521e6dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:39:12, skipping insertion in model container [2023-12-02 15:39:12,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:39:12" (3/3) ... [2023-12-02 15:39:12,470 INFO L112 eAbstractionObserver]: Analyzing ICFG rangesum20.i [2023-12-02 15:39:12,484 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:39:12,484 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:39:12,541 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:39:12,547 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;@4458234e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:39:12,548 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:39:12,551 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 15:39:12,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 15:39:12,557 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:39:12,558 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:39:12,558 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:39:12,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:39:12,564 INFO L85 PathProgramCache]: Analyzing trace with hash -362891911, now seen corresponding path program 1 times [2023-12-02 15:39:12,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:39:12,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856124215] [2023-12-02 15:39:12,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:12,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:39:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:39:12,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:39:12,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856124215] [2023-12-02 15:39:12,708 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-02 15:39:12,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094747806] [2023-12-02 15:39:12,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:12,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:39:12,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:39:12,714 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:39:12,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 15:39:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:39:12,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 15:39:12,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:39:12,863 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 15:39:12,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:39:12,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094747806] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:39:12,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:39:12,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:39:12,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351174965] [2023-12-02 15:39:12,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:39:12,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:39:12,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:39:12,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:39:12,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:39:12,900 INFO L87 Difference]: Start difference. First operand has 17 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 15:39:12,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:39:12,940 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2023-12-02 15:39:12,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:39:12,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2023-12-02 15:39:12,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:39:12,948 INFO L225 Difference]: With dead ends: 33 [2023-12-02 15:39:12,948 INFO L226 Difference]: Without dead ends: 16 [2023-12-02 15:39:12,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:39:12,955 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:39:12,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:39:12,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-12-02 15:39:12,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-12-02 15:39:12,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 15:39:12,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2023-12-02 15:39:12,989 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 20 [2023-12-02 15:39:12,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:39:12,989 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2023-12-02 15:39:12,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 15:39:12,990 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2023-12-02 15:39:12,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 15:39:12,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:39:12,991 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:39:12,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 15:39:13,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 15:39:13,192 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:39:13,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:39:13,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1643744981, now seen corresponding path program 1 times [2023-12-02 15:39:13,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:39:13,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562833617] [2023-12-02 15:39:13,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:13,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:39:13,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:39:13,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:39:13,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562833617] [2023-12-02 15:39:13,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-02 15:39:13,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144071092] [2023-12-02 15:39:13,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:13,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:39:13,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:39:13,233 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:39:13,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 15:39:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:39:13,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 15:39:13,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:39:13,335 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 15:39:13,335 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:39:13,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144071092] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:39:13,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:39:13,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:39:13,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011883479] [2023-12-02 15:39:13,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:39:13,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:39:13,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:39:13,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:39:13,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:39:13,339 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 15:39:13,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:39:13,361 INFO L93 Difference]: Finished difference Result 29 states and 39 transitions. [2023-12-02 15:39:13,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:39:13,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2023-12-02 15:39:13,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:39:13,363 INFO L225 Difference]: With dead ends: 29 [2023-12-02 15:39:13,363 INFO L226 Difference]: Without dead ends: 17 [2023-12-02 15:39:13,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:39:13,365 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:39:13,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:39:13,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-12-02 15:39:13,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-12-02 15:39:13,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 15:39:13,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2023-12-02 15:39:13,371 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 21 [2023-12-02 15:39:13,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:39:13,371 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2023-12-02 15:39:13,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 15:39:13,371 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2023-12-02 15:39:13,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 15:39:13,372 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:39:13,373 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:39:13,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 15:39:13,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:39:13,574 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:39:13,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:39:13,575 INFO L85 PathProgramCache]: Analyzing trace with hash 367287681, now seen corresponding path program 1 times [2023-12-02 15:39:13,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:39:13,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998700315] [2023-12-02 15:39:13,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:13,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:39:13,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:39:13,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:39:13,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998700315] [2023-12-02 15:39:13,610 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-02 15:39:13,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411850533] [2023-12-02 15:39:13,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:13,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:39:13,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:39:13,612 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:39:13,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 15:39:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:39:13,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 15:39:13,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:39:13,709 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 15:39:13,710 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:39:13,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411850533] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:39:13,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:39:13,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:39:13,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319616933] [2023-12-02 15:39:13,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:39:13,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:39:13,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:39:13,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:39:13,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:39:13,713 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 15:39:13,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:39:13,734 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2023-12-02 15:39:13,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:39:13,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2023-12-02 15:39:13,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:39:13,736 INFO L225 Difference]: With dead ends: 27 [2023-12-02 15:39:13,736 INFO L226 Difference]: Without dead ends: 18 [2023-12-02 15:39:13,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:39:13,738 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:39:13,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:39:13,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-12-02 15:39:13,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-12-02 15:39:13,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 15:39:13,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2023-12-02 15:39:13,744 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 24 [2023-12-02 15:39:13,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:39:13,745 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2023-12-02 15:39:13,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 15:39:13,745 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-12-02 15:39:13,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-02 15:39:13,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:39:13,746 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:39:13,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 15:39:13,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:39:13,950 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:39:13,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:39:13,951 INFO L85 PathProgramCache]: Analyzing trace with hash 269819910, now seen corresponding path program 1 times [2023-12-02 15:39:13,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:39:13,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749657436] [2023-12-02 15:39:13,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:13,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:39:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:39:13,986 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:39:13,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749657436] [2023-12-02 15:39:13,986 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-02 15:39:13,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255736455] [2023-12-02 15:39:13,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:13,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:39:13,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:39:13,988 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:39:13,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 15:39:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:39:14,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:39:14,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:39:14,102 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 15:39:14,102 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:39:14,134 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 15:39:14,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255736455] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:39:14,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1203383104] [2023-12-02 15:39:14,151 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2023-12-02 15:39:14,152 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:39:14,154 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:39:14,159 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:39:14,159 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:39:19,553 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2023-12-02 15:39:19,883 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:39:48,959 WARN L293 SmtUtils]: Spent 5.20s on a formula simplification. DAG size of input: 155 DAG size of output: 116 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:39:56,625 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '574#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (or (and (exists ((|v_#memory_int_42| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_42| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_42| |ULTIMATE.start_main_~#x~0#1.base|) 76 |ULTIMATE.start_main_~temp~0#1|)))) (exists ((v_rangesum_~cnt~0_BEFORE_RETURN_5 Int) (v_rangesum_~ret~0_BEFORE_RETURN_5 Int)) (and (<= 0 v_rangesum_~cnt~0_BEFORE_RETURN_5) (or (and (not (= v_rangesum_~cnt~0_BEFORE_RETURN_5 0)) (or (and (= (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296) (mod (div v_rangesum_~ret~0_BEFORE_RETURN_5 v_rangesum_~cnt~0_BEFORE_RETURN_5) 4294967296)) (or (= (mod v_rangesum_~ret~0_BEFORE_RETURN_5 v_rangesum_~cnt~0_BEFORE_RETURN_5) 0) (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_5 1)))) (and (or (= (mod v_rangesum_~ret~0_BEFORE_RETURN_5 v_rangesum_~cnt~0_BEFORE_RETURN_5) 0) (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_5 1))) (= |ULTIMATE.start_main_~ret5~0#1| (mod (div v_rangesum_~ret~0_BEFORE_RETURN_5 v_rangesum_~cnt~0_BEFORE_RETURN_5) 4294967296))) (and (not (= (mod v_rangesum_~ret~0_BEFORE_RETURN_5 v_rangesum_~cnt~0_BEFORE_RETURN_5) 0)) (<= (+ v_rangesum_~ret~0_BEFORE_RETURN_5 1) 0) (or (= |ULTIMATE.start_main_~ret5~0#1| (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_5 v_rangesum_~cnt~0_BEFORE_RETURN_5) 1) 4294967296)) (= (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296) (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_5 v_rangesum_~cnt~0_BEFORE_RETURN_5) 1) 4294967296)))))) (and (= v_rangesum_~cnt~0_BEFORE_RETURN_5 0) (= |ULTIMATE.start_main_~ret5~0#1| 0)))))) (and (exists ((v_rangesum_~cnt~0_BEFORE_RETURN_6 Int) (v_rangesum_~ret~0_BEFORE_RETURN_6 Int)) (and (or (and (not (= v_rangesum_~cnt~0_BEFORE_RETURN_6 0)) (or (and (or (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_6 1)) (= (mod v_rangesum_~ret~0_BEFORE_RETURN_6 v_rangesum_~cnt~0_BEFORE_RETURN_6) 0)) (= |ULTIMATE.start_main_~ret5~0#1| (mod (div v_rangesum_~ret~0_BEFORE_RETURN_6 v_rangesum_~cnt~0_BEFORE_RETURN_6) 4294967296))) (and (<= (+ v_rangesum_~ret~0_BEFORE_RETURN_6 1) 0) (or (= |ULTIMATE.start_main_~ret5~0#1| (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_6 v_rangesum_~cnt~0_BEFORE_RETURN_6) 1) 4294967296)) (= (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296) (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_6 v_rangesum_~cnt~0_BEFORE_RETURN_6) 1) 4294967296))) (not (= (mod v_rangesum_~ret~0_BEFORE_RETURN_6 v_rangesum_~cnt~0_BEFORE_RETURN_6) 0))) (and (= (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296) (mod (div v_rangesum_~ret~0_BEFORE_RETURN_6 v_rangesum_~cnt~0_BEFORE_RETURN_6) 4294967296)) (or (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_6 1)) (= (mod v_rangesum_~ret~0_BEFORE_RETURN_6 v_rangesum_~cnt~0_BEFORE_RETURN_6) 0))))) (and (= v_rangesum_~cnt~0_BEFORE_RETURN_6 0) (= |ULTIMATE.start_main_~ret5~0#1| 0))) (<= 0 v_rangesum_~cnt~0_BEFORE_RETURN_6))) (exists ((|v_#memory_int_42| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_42| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_42| |ULTIMATE.start_main_~#x~0#1.base|) 76 |ULTIMATE.start_main_~temp~0#1|)))))) (or (not (= |ULTIMATE.start_main_~ret2~0#1| |ULTIMATE.start_main_~ret~1#1|)) (not (= |ULTIMATE.start_main_~ret5~0#1| |ULTIMATE.start_main_~ret~1#1|))) (<= 0 (+ |ULTIMATE.start_main_~ret~1#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~ret5~0#1| 2147483648)) (<= |ULTIMATE.start_main_~ret~1#1| 2147483647) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= |ULTIMATE.start_main_~ret5~0#1| 2147483647))' at error location [2023-12-02 15:39:56,625 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 15:39:56,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 15:39:56,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 6 [2023-12-02 15:39:56,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032460895] [2023-12-02 15:39:56,626 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 15:39:56,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:39:56,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:39:56,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:39:56,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=267, Unknown=12, NotChecked=0, Total=342 [2023-12-02 15:39:56,628 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-02 15:39:56,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:39:56,651 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2023-12-02 15:39:56,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:39:56,651 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 25 [2023-12-02 15:39:56,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:39:56,652 INFO L225 Difference]: With dead ends: 36 [2023-12-02 15:39:56,652 INFO L226 Difference]: Without dead ends: 21 [2023-12-02 15:39:56,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 36.8s TimeCoverageRelationStatistics Valid=63, Invalid=267, Unknown=12, NotChecked=0, Total=342 [2023-12-02 15:39:56,654 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:39:56,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:39:56,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-12-02 15:39:56,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-12-02 15:39:56,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 15:39:56,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2023-12-02 15:39:56,659 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 25 [2023-12-02 15:39:56,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:39:56,659 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2023-12-02 15:39:56,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-02 15:39:56,660 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2023-12-02 15:39:56,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 15:39:56,661 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:39:56,661 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:39:56,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 15:39:56,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:39:56,861 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:39:56,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:39:56,862 INFO L85 PathProgramCache]: Analyzing trace with hash -815879724, now seen corresponding path program 2 times [2023-12-02 15:39:56,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:39:56,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996470868] [2023-12-02 15:39:56,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:56,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:39:56,883 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 15:39:56,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1690371706] [2023-12-02 15:39:56,884 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 15:39:56,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:39:56,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:39:56,885 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:39:56,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 15:39:56,950 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-02 15:39:56,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 15:39:56,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:39:56,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:39:56,961 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 15:39:56,961 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:39:56,979 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 15:39:56,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:39:56,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996470868] [2023-12-02 15:39:56,979 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 15:39:56,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690371706] [2023-12-02 15:39:56,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690371706] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:39:56,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1428683887] [2023-12-02 15:39:56,982 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2023-12-02 15:39:56,982 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:39:56,982 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:39:56,982 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:39:56,982 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:40:00,823 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2023-12-02 15:40:01,056 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:40:15,672 WARN L293 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 136 DAG size of output: 97 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:40:37,221 WARN L293 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 155 DAG size of output: 116 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:40:49,414 WARN L293 SmtUtils]: Spent 6.00s on a formula simplification. DAG size of input: 158 DAG size of output: 99 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:40:49,415 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '846#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (or (not (= |ULTIMATE.start_main_~ret2~0#1| |ULTIMATE.start_main_~ret~1#1|)) (not (= |ULTIMATE.start_main_~ret5~0#1| |ULTIMATE.start_main_~ret~1#1|))) (<= 0 (+ |ULTIMATE.start_main_~ret~1#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~ret5~0#1| 2147483648)) (or (and (exists ((|v_#memory_int_50| (Array Int (Array Int Int)))) (= (store |v_#memory_int_50| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_50| |ULTIMATE.start_main_~#x~0#1.base|) 76 |ULTIMATE.start_main_~temp~0#1|)) |#memory_int|)) (exists ((v_rangesum_~ret~0_BEFORE_RETURN_12 Int) (v_rangesum_~cnt~0_BEFORE_RETURN_12 Int)) (and (or (and (or (and (= (mod (div v_rangesum_~ret~0_BEFORE_RETURN_12 v_rangesum_~cnt~0_BEFORE_RETURN_12) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296)) (or (= (mod v_rangesum_~ret~0_BEFORE_RETURN_12 v_rangesum_~cnt~0_BEFORE_RETURN_12) 0) (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_12 1)))) (and (= |ULTIMATE.start_main_~ret5~0#1| (mod (div v_rangesum_~ret~0_BEFORE_RETURN_12 v_rangesum_~cnt~0_BEFORE_RETURN_12) 4294967296)) (or (= (mod v_rangesum_~ret~0_BEFORE_RETURN_12 v_rangesum_~cnt~0_BEFORE_RETURN_12) 0) (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_12 1)))) (and (not (= (mod v_rangesum_~ret~0_BEFORE_RETURN_12 v_rangesum_~cnt~0_BEFORE_RETURN_12) 0)) (or (= (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296) (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_12 v_rangesum_~cnt~0_BEFORE_RETURN_12) 1) 4294967296)) (= |ULTIMATE.start_main_~ret5~0#1| (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_12 v_rangesum_~cnt~0_BEFORE_RETURN_12) 1) 4294967296))) (<= (+ v_rangesum_~ret~0_BEFORE_RETURN_12 1) 0))) (not (= v_rangesum_~cnt~0_BEFORE_RETURN_12 0))) (and (= v_rangesum_~cnt~0_BEFORE_RETURN_12 0) (= |ULTIMATE.start_main_~ret5~0#1| 0))) (<= 0 v_rangesum_~cnt~0_BEFORE_RETURN_12)))) (and (exists ((|v_#memory_int_50| (Array Int (Array Int Int)))) (= (store |v_#memory_int_50| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_50| |ULTIMATE.start_main_~#x~0#1.base|) 76 |ULTIMATE.start_main_~temp~0#1|)) |#memory_int|)) (exists ((v_rangesum_~cnt~0_BEFORE_RETURN_11 Int) (v_rangesum_~ret~0_BEFORE_RETURN_11 Int)) (and (<= 0 v_rangesum_~cnt~0_BEFORE_RETURN_11) (or (and (= v_rangesum_~cnt~0_BEFORE_RETURN_11 0) (= |ULTIMATE.start_main_~ret5~0#1| 0)) (and (or (and (= |ULTIMATE.start_main_~ret5~0#1| (mod (div v_rangesum_~ret~0_BEFORE_RETURN_11 v_rangesum_~cnt~0_BEFORE_RETURN_11) 4294967296)) (or (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_11 1)) (= (mod v_rangesum_~ret~0_BEFORE_RETURN_11 v_rangesum_~cnt~0_BEFORE_RETURN_11) 0))) (and (= (mod (div v_rangesum_~ret~0_BEFORE_RETURN_11 v_rangesum_~cnt~0_BEFORE_RETURN_11) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296)) (or (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_11 1)) (= (mod v_rangesum_~ret~0_BEFORE_RETURN_11 v_rangesum_~cnt~0_BEFORE_RETURN_11) 0))) (and (not (= (mod v_rangesum_~ret~0_BEFORE_RETURN_11 v_rangesum_~cnt~0_BEFORE_RETURN_11) 0)) (or (= (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296) (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_11 v_rangesum_~cnt~0_BEFORE_RETURN_11) 1) 4294967296)) (= |ULTIMATE.start_main_~ret5~0#1| (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_11 v_rangesum_~cnt~0_BEFORE_RETURN_11) 1) 4294967296))) (<= (+ v_rangesum_~ret~0_BEFORE_RETURN_11 1) 0))) (not (= v_rangesum_~cnt~0_BEFORE_RETURN_11 0)))))))) (<= |ULTIMATE.start_main_~ret~1#1| 2147483647) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= |ULTIMATE.start_main_~ret5~0#1| 2147483647))' at error location [2023-12-02 15:40:49,415 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 15:40:49,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 15:40:49,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-02 15:40:49,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245854099] [2023-12-02 15:40:49,415 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 15:40:49,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:40:49,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:40:49,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:40:49,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=265, Unknown=14, NotChecked=0, Total=342 [2023-12-02 15:40:49,417 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 15:40:49,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:40:49,435 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions. [2023-12-02 15:40:49,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:40:49,436 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2023-12-02 15:40:49,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:40:49,437 INFO L225 Difference]: With dead ends: 38 [2023-12-02 15:40:49,437 INFO L226 Difference]: Without dead ends: 24 [2023-12-02 15:40:49,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 48.4s TimeCoverageRelationStatistics Valid=63, Invalid=265, Unknown=14, NotChecked=0, Total=342 [2023-12-02 15:40:49,438 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:40:49,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:40:49,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-12-02 15:40:49,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-12-02 15:40:49,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 15:40:49,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2023-12-02 15:40:49,443 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 28 [2023-12-02 15:40:49,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:40:49,443 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2023-12-02 15:40:49,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 15:40:49,444 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2023-12-02 15:40:49,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 15:40:49,445 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:40:49,445 INFO L195 NwaCegarLoop]: trace histogram [12, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:40:49,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 15:40:49,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:40:49,646 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:40:49,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:40:49,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1105412936, now seen corresponding path program 3 times [2023-12-02 15:40:49,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:40:49,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460576485] [2023-12-02 15:40:49,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:40:49,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:40:49,672 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 15:40:49,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1290543050] [2023-12-02 15:40:49,672 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 15:40:49,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:40:49,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:40:49,674 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:40:49,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 15:40:49,757 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 15:40:49,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 15:40:49,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 15:40:49,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:40:49,782 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-02 15:40:49,782 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:40:49,832 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-02 15:40:49,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:40:49,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460576485] [2023-12-02 15:40:49,833 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 15:40:49,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290543050] [2023-12-02 15:40:49,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290543050] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:40:49,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1218125029] [2023-12-02 15:40:49,836 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2023-12-02 15:40:49,836 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:40:49,836 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:40:49,836 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:40:49,836 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:40:53,320 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2023-12-02 15:40:53,557 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:41:10,490 WARN L293 SmtUtils]: Spent 7.21s on a formula simplification. DAG size of input: 136 DAG size of output: 97 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:41:42,759 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1188#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (or (not (= |ULTIMATE.start_main_~ret2~0#1| |ULTIMATE.start_main_~ret~1#1|)) (not (= |ULTIMATE.start_main_~ret5~0#1| |ULTIMATE.start_main_~ret~1#1|))) (<= 0 (+ |ULTIMATE.start_main_~ret~1#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~ret5~0#1| 2147483648)) (<= |ULTIMATE.start_main_~ret~1#1| 2147483647) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= |ULTIMATE.start_main_~ret5~0#1| 2147483647) (or (and (exists ((|v_#memory_int_65| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_65| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_65| |ULTIMATE.start_main_~#x~0#1.base|) 76 |ULTIMATE.start_main_~temp~0#1|)))) (exists ((v_rangesum_~cnt~0_BEFORE_RETURN_18 Int) (v_rangesum_~ret~0_BEFORE_RETURN_18 Int)) (and (or (and (= v_rangesum_~cnt~0_BEFORE_RETURN_18 0) (= |ULTIMATE.start_main_~ret5~0#1| 0)) (and (or (and (not (= (mod v_rangesum_~ret~0_BEFORE_RETURN_18 v_rangesum_~cnt~0_BEFORE_RETURN_18) 0)) (<= (+ v_rangesum_~ret~0_BEFORE_RETURN_18 1) 0) (or (= |ULTIMATE.start_main_~ret5~0#1| (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_18 v_rangesum_~cnt~0_BEFORE_RETURN_18) 1) 4294967296)) (= (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_18 v_rangesum_~cnt~0_BEFORE_RETURN_18) 1) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296)))) (and (= (mod (div v_rangesum_~ret~0_BEFORE_RETURN_18 v_rangesum_~cnt~0_BEFORE_RETURN_18) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296)) (or (= (mod v_rangesum_~ret~0_BEFORE_RETURN_18 v_rangesum_~cnt~0_BEFORE_RETURN_18) 0) (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_18 1)))) (and (= |ULTIMATE.start_main_~ret5~0#1| (mod (div v_rangesum_~ret~0_BEFORE_RETURN_18 v_rangesum_~cnt~0_BEFORE_RETURN_18) 4294967296)) (or (= (mod v_rangesum_~ret~0_BEFORE_RETURN_18 v_rangesum_~cnt~0_BEFORE_RETURN_18) 0) (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_18 1))))) (not (= v_rangesum_~cnt~0_BEFORE_RETURN_18 0)))) (<= 0 v_rangesum_~cnt~0_BEFORE_RETURN_18)))) (and (exists ((|v_#memory_int_65| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_65| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_65| |ULTIMATE.start_main_~#x~0#1.base|) 76 |ULTIMATE.start_main_~temp~0#1|)))) (exists ((v_rangesum_~ret~0_BEFORE_RETURN_17 Int) (v_rangesum_~cnt~0_BEFORE_RETURN_17 Int)) (and (<= 0 v_rangesum_~cnt~0_BEFORE_RETURN_17) (or (and (= v_rangesum_~cnt~0_BEFORE_RETURN_17 0) (= |ULTIMATE.start_main_~ret5~0#1| 0)) (and (not (= v_rangesum_~cnt~0_BEFORE_RETURN_17 0)) (or (and (= |ULTIMATE.start_main_~ret5~0#1| (mod (div v_rangesum_~ret~0_BEFORE_RETURN_17 v_rangesum_~cnt~0_BEFORE_RETURN_17) 4294967296)) (or (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_17 1)) (= (mod v_rangesum_~ret~0_BEFORE_RETURN_17 v_rangesum_~cnt~0_BEFORE_RETURN_17) 0))) (and (<= (+ v_rangesum_~ret~0_BEFORE_RETURN_17 1) 0) (not (= (mod v_rangesum_~ret~0_BEFORE_RETURN_17 v_rangesum_~cnt~0_BEFORE_RETURN_17) 0)) (or (= (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296) (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_17 v_rangesum_~cnt~0_BEFORE_RETURN_17) 1) 4294967296)) (= |ULTIMATE.start_main_~ret5~0#1| (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_17 v_rangesum_~cnt~0_BEFORE_RETURN_17) 1) 4294967296)))) (and (= (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296) (mod (div v_rangesum_~ret~0_BEFORE_RETURN_17 v_rangesum_~cnt~0_BEFORE_RETURN_17) 4294967296)) (or (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_17 1)) (= (mod v_rangesum_~ret~0_BEFORE_RETURN_17 v_rangesum_~cnt~0_BEFORE_RETURN_17) 0)))))))))))' at error location [2023-12-02 15:41:42,759 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 15:41:42,759 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 15:41:42,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2023-12-02 15:41:42,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365381050] [2023-12-02 15:41:42,760 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 15:41:42,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 15:41:42,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:41:42,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 15:41:42,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=473, Unknown=13, NotChecked=0, Total=600 [2023-12-02 15:41:42,762 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-02 15:41:42,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:41:42,788 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2023-12-02 15:41:42,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 15:41:42,788 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 37 [2023-12-02 15:41:42,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:41:42,789 INFO L225 Difference]: With dead ends: 48 [2023-12-02 15:41:42,789 INFO L226 Difference]: Without dead ends: 30 [2023-12-02 15:41:42,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 49.2s TimeCoverageRelationStatistics Valid=114, Invalid=473, Unknown=13, NotChecked=0, Total=600 [2023-12-02 15:41:42,790 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:41:42,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:41:42,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-12-02 15:41:42,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-12-02 15:41:42,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 15:41:42,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2023-12-02 15:41:42,795 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 37 [2023-12-02 15:41:42,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:41:42,795 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2023-12-02 15:41:42,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-02 15:41:42,796 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2023-12-02 15:41:42,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 15:41:42,797 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:41:42,797 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:41:42,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 15:41:42,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:41:42,998 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:41:42,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:41:42,998 INFO L85 PathProgramCache]: Analyzing trace with hash 478405112, now seen corresponding path program 4 times [2023-12-02 15:41:42,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:41:42,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759270612] [2023-12-02 15:41:42,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:41:42,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:41:43,023 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 15:41:43,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [27736769] [2023-12-02 15:41:43,023 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-02 15:41:43,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:41:43,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:41:43,024 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:41:43,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 15:41:43,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:41:43,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 15:41:43,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:41:43,210 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-02 15:41:43,210 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:41:43,357 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-02 15:41:43,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:41:43,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759270612] [2023-12-02 15:41:43,358 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 15:41:43,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27736769] [2023-12-02 15:41:43,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27736769] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:41:43,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [311871614] [2023-12-02 15:41:43,359 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2023-12-02 15:41:43,360 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:41:43,360 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:41:43,360 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:41:43,360 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:41:47,048 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2023-12-02 15:41:47,321 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:42:23,373 WARN L293 SmtUtils]: Spent 5.76s on a formula simplification. DAG size of input: 155 DAG size of output: 116 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:42:33,472 WARN L293 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 158 DAG size of output: 99 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:42:33,473 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1608#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (or (not (= |ULTIMATE.start_main_~ret2~0#1| |ULTIMATE.start_main_~ret~1#1|)) (not (= |ULTIMATE.start_main_~ret5~0#1| |ULTIMATE.start_main_~ret~1#1|))) (<= 0 (+ |ULTIMATE.start_main_~ret~1#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~ret5~0#1| 2147483648)) (<= |ULTIMATE.start_main_~ret~1#1| 2147483647) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= |ULTIMATE.start_main_~ret5~0#1| 2147483647) (or (and (exists ((|v_#memory_int_86| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_86| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_86| |ULTIMATE.start_main_~#x~0#1.base|) 76 |ULTIMATE.start_main_~temp~0#1|)))) (exists ((v_rangesum_~ret~0_BEFORE_RETURN_23 Int) (v_rangesum_~cnt~0_BEFORE_RETURN_23 Int)) (and (or (and (not (= v_rangesum_~cnt~0_BEFORE_RETURN_23 0)) (or (and (not (= (mod v_rangesum_~ret~0_BEFORE_RETURN_23 v_rangesum_~cnt~0_BEFORE_RETURN_23) 0)) (<= (+ v_rangesum_~ret~0_BEFORE_RETURN_23 1) 0) (or (= (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_23 v_rangesum_~cnt~0_BEFORE_RETURN_23) 1) 4294967296) |ULTIMATE.start_main_~ret5~0#1|) (= (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_23 v_rangesum_~cnt~0_BEFORE_RETURN_23) 1) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296)))) (and (or (= (mod v_rangesum_~ret~0_BEFORE_RETURN_23 v_rangesum_~cnt~0_BEFORE_RETURN_23) 0) (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_23 1))) (= |ULTIMATE.start_main_~ret5~0#1| (mod (div v_rangesum_~ret~0_BEFORE_RETURN_23 v_rangesum_~cnt~0_BEFORE_RETURN_23) 4294967296))) (and (or (= (mod v_rangesum_~ret~0_BEFORE_RETURN_23 v_rangesum_~cnt~0_BEFORE_RETURN_23) 0) (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_23 1))) (= (mod (div v_rangesum_~ret~0_BEFORE_RETURN_23 v_rangesum_~cnt~0_BEFORE_RETURN_23) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296))))) (and (= v_rangesum_~cnt~0_BEFORE_RETURN_23 0) (= |ULTIMATE.start_main_~ret5~0#1| 0))) (<= 0 v_rangesum_~cnt~0_BEFORE_RETURN_23)))) (and (exists ((|v_#memory_int_86| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_86| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_86| |ULTIMATE.start_main_~#x~0#1.base|) 76 |ULTIMATE.start_main_~temp~0#1|)))) (exists ((v_rangesum_~ret~0_BEFORE_RETURN_24 Int) (v_rangesum_~cnt~0_BEFORE_RETURN_24 Int)) (and (or (and (= v_rangesum_~cnt~0_BEFORE_RETURN_24 0) (= |ULTIMATE.start_main_~ret5~0#1| 0)) (and (not (= v_rangesum_~cnt~0_BEFORE_RETURN_24 0)) (or (and (or (= 0 (mod v_rangesum_~ret~0_BEFORE_RETURN_24 v_rangesum_~cnt~0_BEFORE_RETURN_24)) (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_24 1))) (= |ULTIMATE.start_main_~ret5~0#1| (mod (div v_rangesum_~ret~0_BEFORE_RETURN_24 v_rangesum_~cnt~0_BEFORE_RETURN_24) 4294967296))) (and (or (= 0 (mod v_rangesum_~ret~0_BEFORE_RETURN_24 v_rangesum_~cnt~0_BEFORE_RETURN_24)) (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_24 1))) (= (mod (div v_rangesum_~ret~0_BEFORE_RETURN_24 v_rangesum_~cnt~0_BEFORE_RETURN_24) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296))) (and (not (= 0 (mod v_rangesum_~ret~0_BEFORE_RETURN_24 v_rangesum_~cnt~0_BEFORE_RETURN_24))) (or (= |ULTIMATE.start_main_~ret5~0#1| (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_24 v_rangesum_~cnt~0_BEFORE_RETURN_24) 1) 4294967296)) (= (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_24 v_rangesum_~cnt~0_BEFORE_RETURN_24) 1) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296))) (<= (+ v_rangesum_~ret~0_BEFORE_RETURN_24 1) 0))))) (<= 0 v_rangesum_~cnt~0_BEFORE_RETURN_24))))))' at error location [2023-12-02 15:42:33,473 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 15:42:33,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 15:42:33,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 22 [2023-12-02 15:42:33,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947711766] [2023-12-02 15:42:33,474 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 15:42:33,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-02 15:42:33,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:42:33,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-02 15:42:33,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=899, Unknown=12, NotChecked=0, Total=1190 [2023-12-02 15:42:33,476 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 22 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 22 states have internal predecessors, (36), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-02 15:42:33,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:42:33,524 INFO L93 Difference]: Finished difference Result 58 states and 75 transitions. [2023-12-02 15:42:33,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-02 15:42:33,524 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 22 states have internal predecessors, (36), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 43 [2023-12-02 15:42:33,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:42:33,525 INFO L225 Difference]: With dead ends: 58 [2023-12-02 15:42:33,525 INFO L226 Difference]: Without dead ends: 40 [2023-12-02 15:42:33,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 92 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 46.3s TimeCoverageRelationStatistics Valid=279, Invalid=899, Unknown=12, NotChecked=0, Total=1190 [2023-12-02 15:42:33,527 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:42:33,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:42:33,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-12-02 15:42:33,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-12-02 15:42:33,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 35 states have (on average 1.0857142857142856) internal successors, (38), 35 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 15:42:33,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2023-12-02 15:42:33,533 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 43 [2023-12-02 15:42:33,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:42:33,533 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2023-12-02 15:42:33,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 22 states have internal predecessors, (36), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-02 15:42:33,533 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2023-12-02 15:42:33,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 15:42:33,535 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:42:33,535 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:42:33,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 15:42:33,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:42:33,736 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:42:33,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:42:33,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1406989640, now seen corresponding path program 5 times [2023-12-02 15:42:33,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:42:33,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671318449] [2023-12-02 15:42:33,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:42:33,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:42:33,776 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 15:42:33,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2115178789] [2023-12-02 15:42:33,776 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 15:42:33,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:42:33,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:42:33,777 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:42:33,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 15:42:33,867 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-02 15:42:33,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 15:42:33,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:42:33,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:42:33,880 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 54 proven. 1 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2023-12-02 15:42:33,880 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:42:33,896 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2023-12-02 15:42:33,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:42:33,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671318449] [2023-12-02 15:42:33,897 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 15:42:33,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115178789] [2023-12-02 15:42:33,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115178789] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:42:33,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1204958597] [2023-12-02 15:42:33,898 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2023-12-02 15:42:33,899 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:42:33,899 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:42:33,899 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:42:33,899 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:42:37,609 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2023-12-02 15:42:37,839 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:42:59,697 WARN L293 SmtUtils]: Spent 7.06s on a formula simplification. DAG size of input: 136 DAG size of output: 97 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:43:26,807 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2112#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (or (not (= |ULTIMATE.start_main_~ret2~0#1| |ULTIMATE.start_main_~ret~1#1|)) (not (= |ULTIMATE.start_main_~ret5~0#1| |ULTIMATE.start_main_~ret~1#1|))) (<= 0 (+ |ULTIMATE.start_main_~ret~1#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~ret5~0#1| 2147483648)) (<= |ULTIMATE.start_main_~ret~1#1| 2147483647) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= |ULTIMATE.start_main_~ret5~0#1| 2147483647) (or (and (exists ((v_rangesum_~ret~0_BEFORE_RETURN_30 Int) (v_rangesum_~cnt~0_BEFORE_RETURN_30 Int)) (and (or (and (= v_rangesum_~cnt~0_BEFORE_RETURN_30 0) (= |ULTIMATE.start_main_~ret5~0#1| 0)) (and (not (= v_rangesum_~cnt~0_BEFORE_RETURN_30 0)) (or (and (= (mod (div v_rangesum_~ret~0_BEFORE_RETURN_30 v_rangesum_~cnt~0_BEFORE_RETURN_30) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296)) (or (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_30 1)) (= (mod v_rangesum_~ret~0_BEFORE_RETURN_30 v_rangesum_~cnt~0_BEFORE_RETURN_30) 0))) (and (not (= (mod v_rangesum_~ret~0_BEFORE_RETURN_30 v_rangesum_~cnt~0_BEFORE_RETURN_30) 0)) (<= (+ v_rangesum_~ret~0_BEFORE_RETURN_30 1) 0) (or (= (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_30 v_rangesum_~cnt~0_BEFORE_RETURN_30) 1) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296)) (= |ULTIMATE.start_main_~ret5~0#1| (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_30 v_rangesum_~cnt~0_BEFORE_RETURN_30) 1) 4294967296)))) (and (= |ULTIMATE.start_main_~ret5~0#1| (mod (div v_rangesum_~ret~0_BEFORE_RETURN_30 v_rangesum_~cnt~0_BEFORE_RETURN_30) 4294967296)) (or (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_30 1)) (= (mod v_rangesum_~ret~0_BEFORE_RETURN_30 v_rangesum_~cnt~0_BEFORE_RETURN_30) 0)))))) (<= 0 v_rangesum_~cnt~0_BEFORE_RETURN_30))) (exists ((|v_#memory_int_96| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_96| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_96| |ULTIMATE.start_main_~#x~0#1.base|) 76 |ULTIMATE.start_main_~temp~0#1|))))) (and (exists ((v_rangesum_~cnt~0_BEFORE_RETURN_29 Int) (v_rangesum_~ret~0_BEFORE_RETURN_29 Int)) (and (<= 0 v_rangesum_~cnt~0_BEFORE_RETURN_29) (or (and (= v_rangesum_~cnt~0_BEFORE_RETURN_29 0) (= |ULTIMATE.start_main_~ret5~0#1| 0)) (and (or (and (= (mod (div v_rangesum_~ret~0_BEFORE_RETURN_29 v_rangesum_~cnt~0_BEFORE_RETURN_29) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296)) (or (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_29 1)) (= (mod v_rangesum_~ret~0_BEFORE_RETURN_29 v_rangesum_~cnt~0_BEFORE_RETURN_29) 0))) (and (<= (+ v_rangesum_~ret~0_BEFORE_RETURN_29 1) 0) (or (= (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_29 v_rangesum_~cnt~0_BEFORE_RETURN_29) 1) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296)) (= |ULTIMATE.start_main_~ret5~0#1| (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_29 v_rangesum_~cnt~0_BEFORE_RETURN_29) 1) 4294967296))) (not (= (mod v_rangesum_~ret~0_BEFORE_RETURN_29 v_rangesum_~cnt~0_BEFORE_RETURN_29) 0))) (and (= |ULTIMATE.start_main_~ret5~0#1| (mod (div v_rangesum_~ret~0_BEFORE_RETURN_29 v_rangesum_~cnt~0_BEFORE_RETURN_29) 4294967296)) (or (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_29 1)) (= (mod v_rangesum_~ret~0_BEFORE_RETURN_29 v_rangesum_~cnt~0_BEFORE_RETURN_29) 0)))) (not (= v_rangesum_~cnt~0_BEFORE_RETURN_29 0)))))) (exists ((|v_#memory_int_96| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_96| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_96| |ULTIMATE.start_main_~#x~0#1.base|) 76 |ULTIMATE.start_main_~temp~0#1|)))))))' at error location [2023-12-02 15:43:26,807 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 15:43:26,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 15:43:26,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-02 15:43:26,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476695662] [2023-12-02 15:43:26,807 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 15:43:26,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:43:26,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:43:26,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:43:26,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=266, Unknown=13, NotChecked=0, Total=342 [2023-12-02 15:43:26,808 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 15:43:26,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:43:26,826 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2023-12-02 15:43:26,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:43:26,827 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 53 [2023-12-02 15:43:26,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:43:26,828 INFO L225 Difference]: With dead ends: 55 [2023-12-02 15:43:26,828 INFO L226 Difference]: Without dead ends: 43 [2023-12-02 15:43:26,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 49.0s TimeCoverageRelationStatistics Valid=63, Invalid=266, Unknown=13, NotChecked=0, Total=342 [2023-12-02 15:43:26,829 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:43:26,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:43:26,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-12-02 15:43:26,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-12-02 15:43:26,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 38 states have (on average 1.0789473684210527) internal successors, (41), 38 states have internal predecessors, (41), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 15:43:26,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2023-12-02 15:43:26,833 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 53 [2023-12-02 15:43:26,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:43:26,834 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2023-12-02 15:43:26,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 15:43:26,834 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2023-12-02 15:43:26,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 15:43:26,835 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:43:26,835 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:43:26,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 15:43:27,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-02 15:43:27,035 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:43:27,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:43:27,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1364678343, now seen corresponding path program 6 times [2023-12-02 15:43:27,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:43:27,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058510706] [2023-12-02 15:43:27,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:43:27,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:43:27,067 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 15:43:27,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [17333533] [2023-12-02 15:43:27,067 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 15:43:27,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:43:27,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:43:27,069 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:43:27,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 15:43:27,192 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 15:43:27,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 15:43:27,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 15:43:27,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:43:27,220 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 52 proven. 10 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2023-12-02 15:43:27,220 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:43:27,276 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2023-12-02 15:43:27,276 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:43:27,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058510706] [2023-12-02 15:43:27,276 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 15:43:27,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17333533] [2023-12-02 15:43:27,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17333533] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:43:27,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [513287422] [2023-12-02 15:43:27,278 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2023-12-02 15:43:27,278 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:43:27,279 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:43:27,279 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:43:27,279 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:43:30,952 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2023-12-02 15:43:31,186 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:43:37,239 WARN L293 SmtUtils]: Spent 5.92s on a formula simplification. DAG size of input: 163 DAG size of output: 104 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:43:48,646 WARN L293 SmtUtils]: Spent 6.57s on a formula simplification. DAG size of input: 136 DAG size of output: 97 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:44:21,530 WARN L293 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 158 DAG size of output: 99 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:44:21,531 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2642#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (or (not (= |ULTIMATE.start_main_~ret2~0#1| |ULTIMATE.start_main_~ret~1#1|)) (not (= |ULTIMATE.start_main_~ret5~0#1| |ULTIMATE.start_main_~ret~1#1|))) (<= 0 (+ |ULTIMATE.start_main_~ret~1#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~ret5~0#1| 2147483648)) (<= |ULTIMATE.start_main_~ret~1#1| 2147483647) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (or (and (exists ((v_rangesum_~ret~0_BEFORE_RETURN_35 Int) (v_rangesum_~cnt~0_BEFORE_RETURN_35 Int)) (and (<= 0 v_rangesum_~cnt~0_BEFORE_RETURN_35) (or (and (= v_rangesum_~cnt~0_BEFORE_RETURN_35 0) (= |ULTIMATE.start_main_~ret5~0#1| 0)) (and (or (and (or (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_35 1)) (= (mod v_rangesum_~ret~0_BEFORE_RETURN_35 v_rangesum_~cnt~0_BEFORE_RETURN_35) 0)) (= |ULTIMATE.start_main_~ret5~0#1| (mod (div v_rangesum_~ret~0_BEFORE_RETURN_35 v_rangesum_~cnt~0_BEFORE_RETURN_35) 4294967296))) (and (or (= |ULTIMATE.start_main_~ret5~0#1| (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_35 v_rangesum_~cnt~0_BEFORE_RETURN_35) 1) 4294967296)) (= (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_35 v_rangesum_~cnt~0_BEFORE_RETURN_35) 1) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296))) (not (= (mod v_rangesum_~ret~0_BEFORE_RETURN_35 v_rangesum_~cnt~0_BEFORE_RETURN_35) 0)) (<= (+ v_rangesum_~ret~0_BEFORE_RETURN_35 1) 0)) (and (or (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_35 1)) (= (mod v_rangesum_~ret~0_BEFORE_RETURN_35 v_rangesum_~cnt~0_BEFORE_RETURN_35) 0)) (= (mod (div v_rangesum_~ret~0_BEFORE_RETURN_35 v_rangesum_~cnt~0_BEFORE_RETURN_35) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296)))) (not (= v_rangesum_~cnt~0_BEFORE_RETURN_35 0)))))) (exists ((|v_#memory_int_110| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_110| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_110| |ULTIMATE.start_main_~#x~0#1.base|) 76 |ULTIMATE.start_main_~temp~0#1|))))) (and (exists ((v_rangesum_~cnt~0_BEFORE_RETURN_36 Int) (v_rangesum_~ret~0_BEFORE_RETURN_36 Int)) (and (or (and (= |ULTIMATE.start_main_~ret5~0#1| 0) (= v_rangesum_~cnt~0_BEFORE_RETURN_36 0)) (and (or (and (= (mod (div v_rangesum_~ret~0_BEFORE_RETURN_36 v_rangesum_~cnt~0_BEFORE_RETURN_36) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296)) (or (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_36 1)) (= (mod v_rangesum_~ret~0_BEFORE_RETURN_36 v_rangesum_~cnt~0_BEFORE_RETURN_36) 0))) (and (or (= (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_36 v_rangesum_~cnt~0_BEFORE_RETURN_36) 1) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296)) (= |ULTIMATE.start_main_~ret5~0#1| (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_36 v_rangesum_~cnt~0_BEFORE_RETURN_36) 1) 4294967296))) (<= (+ v_rangesum_~ret~0_BEFORE_RETURN_36 1) 0) (not (= (mod v_rangesum_~ret~0_BEFORE_RETURN_36 v_rangesum_~cnt~0_BEFORE_RETURN_36) 0))) (and (= |ULTIMATE.start_main_~ret5~0#1| (mod (div v_rangesum_~ret~0_BEFORE_RETURN_36 v_rangesum_~cnt~0_BEFORE_RETURN_36) 4294967296)) (or (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_36 1)) (= (mod v_rangesum_~ret~0_BEFORE_RETURN_36 v_rangesum_~cnt~0_BEFORE_RETURN_36) 0)))) (not (= v_rangesum_~cnt~0_BEFORE_RETURN_36 0)))) (<= 0 v_rangesum_~cnt~0_BEFORE_RETURN_36))) (exists ((|v_#memory_int_110| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_110| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_110| |ULTIMATE.start_main_~#x~0#1.base|) 76 |ULTIMATE.start_main_~temp~0#1|)))))) (<= |ULTIMATE.start_main_~ret5~0#1| 2147483647))' at error location [2023-12-02 15:44:21,531 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 15:44:21,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 15:44:21,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-12-02 15:44:21,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857950758] [2023-12-02 15:44:21,532 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 15:44:21,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 15:44:21,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:44:21,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 15:44:21,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=474, Unknown=12, NotChecked=0, Total=600 [2023-12-02 15:44:21,533 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-02 15:44:21,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:44:21,581 INFO L93 Difference]: Finished difference Result 69 states and 84 transitions. [2023-12-02 15:44:21,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 15:44:21,581 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2023-12-02 15:44:21,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:44:21,582 INFO L225 Difference]: With dead ends: 69 [2023-12-02 15:44:21,582 INFO L226 Difference]: Without dead ends: 49 [2023-12-02 15:44:21,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 50.4s TimeCoverageRelationStatistics Valid=114, Invalid=474, Unknown=12, NotChecked=0, Total=600 [2023-12-02 15:44:21,584 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:44:21,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:44:21,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-12-02 15:44:21,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-12-02 15:44:21,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 44 states have (on average 1.0681818181818181) internal successors, (47), 44 states have internal predecessors, (47), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 15:44:21,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2023-12-02 15:44:21,591 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 56 [2023-12-02 15:44:21,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:44:21,591 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2023-12-02 15:44:21,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-02 15:44:21,591 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2023-12-02 15:44:21,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 15:44:21,593 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:44:21,593 INFO L195 NwaCegarLoop]: trace histogram [30, 20, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:44:21,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-02 15:44:21,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-12-02 15:44:21,794 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:44:21,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:44:21,794 INFO L85 PathProgramCache]: Analyzing trace with hash -823954055, now seen corresponding path program 7 times [2023-12-02 15:44:21,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:44:21,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880474265] [2023-12-02 15:44:21,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:44:21,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:44:21,834 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 15:44:21,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2007051761] [2023-12-02 15:44:21,834 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-02 15:44:21,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:44:21,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:44:21,835 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:44:21,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-02 15:44:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:44:21,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 15:44:21,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:44:22,070 INFO L134 CoverageAnalysis]: Checked inductivity of 754 backedges. 244 proven. 55 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2023-12-02 15:44:22,070 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:44:22,213 INFO L134 CoverageAnalysis]: Checked inductivity of 754 backedges. 0 proven. 299 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2023-12-02 15:44:22,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:44:22,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880474265] [2023-12-02 15:44:22,213 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 15:44:22,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007051761] [2023-12-02 15:44:22,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007051761] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:44:22,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [466098479] [2023-12-02 15:44:22,214 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2023-12-02 15:44:22,215 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:44:22,215 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:44:22,215 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:44:22,215 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:44:26,263 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2023-12-02 15:44:26,495 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:44:45,953 WARN L293 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 136 DAG size of output: 97 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:45:11,544 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3328#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (or (not (= |ULTIMATE.start_main_~ret2~0#1| |ULTIMATE.start_main_~ret~1#1|)) (not (= |ULTIMATE.start_main_~ret5~0#1| |ULTIMATE.start_main_~ret~1#1|))) (<= 0 (+ |ULTIMATE.start_main_~ret~1#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~ret5~0#1| 2147483648)) (<= |ULTIMATE.start_main_~ret~1#1| 2147483647) (or (and (exists ((v_rangesum_~ret~0_BEFORE_RETURN_41 Int) (v_rangesum_~cnt~0_BEFORE_RETURN_41 Int)) (and (or (and (not (= v_rangesum_~cnt~0_BEFORE_RETURN_41 0)) (or (and (or (= (mod v_rangesum_~ret~0_BEFORE_RETURN_41 v_rangesum_~cnt~0_BEFORE_RETURN_41) 0) (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_41 1))) (= |ULTIMATE.start_main_~ret5~0#1| (mod (div v_rangesum_~ret~0_BEFORE_RETURN_41 v_rangesum_~cnt~0_BEFORE_RETURN_41) 4294967296))) (and (<= (+ v_rangesum_~ret~0_BEFORE_RETURN_41 1) 0) (or (= |ULTIMATE.start_main_~ret5~0#1| (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_41 v_rangesum_~cnt~0_BEFORE_RETURN_41) 1) 4294967296)) (= (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_41 v_rangesum_~cnt~0_BEFORE_RETURN_41) 1) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296))) (not (= (mod v_rangesum_~ret~0_BEFORE_RETURN_41 v_rangesum_~cnt~0_BEFORE_RETURN_41) 0))) (and (= (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296) (mod (div v_rangesum_~ret~0_BEFORE_RETURN_41 v_rangesum_~cnt~0_BEFORE_RETURN_41) 4294967296)) (or (= (mod v_rangesum_~ret~0_BEFORE_RETURN_41 v_rangesum_~cnt~0_BEFORE_RETURN_41) 0) (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_41 1)))))) (and (= v_rangesum_~cnt~0_BEFORE_RETURN_41 0) (= |ULTIMATE.start_main_~ret5~0#1| 0))) (<= 0 v_rangesum_~cnt~0_BEFORE_RETURN_41))) (exists ((|v_#memory_int_124| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_124| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_124| |ULTIMATE.start_main_~#x~0#1.base|) 76 |ULTIMATE.start_main_~temp~0#1|))))) (and (exists ((v_rangesum_~ret~0_BEFORE_RETURN_42 Int) (v_rangesum_~cnt~0_BEFORE_RETURN_42 Int)) (and (<= 0 v_rangesum_~cnt~0_BEFORE_RETURN_42) (or (and (= v_rangesum_~cnt~0_BEFORE_RETURN_42 0) (= |ULTIMATE.start_main_~ret5~0#1| 0)) (and (or (and (= (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296) (mod (div v_rangesum_~ret~0_BEFORE_RETURN_42 v_rangesum_~cnt~0_BEFORE_RETURN_42) 4294967296)) (or (= (mod v_rangesum_~ret~0_BEFORE_RETURN_42 v_rangesum_~cnt~0_BEFORE_RETURN_42) 0) (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_42 1)))) (and (= |ULTIMATE.start_main_~ret5~0#1| (mod (div v_rangesum_~ret~0_BEFORE_RETURN_42 v_rangesum_~cnt~0_BEFORE_RETURN_42) 4294967296)) (or (= (mod v_rangesum_~ret~0_BEFORE_RETURN_42 v_rangesum_~cnt~0_BEFORE_RETURN_42) 0) (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_42 1)))) (and (not (= (mod v_rangesum_~ret~0_BEFORE_RETURN_42 v_rangesum_~cnt~0_BEFORE_RETURN_42) 0)) (<= (+ v_rangesum_~ret~0_BEFORE_RETURN_42 1) 0) (or (= (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_42 v_rangesum_~cnt~0_BEFORE_RETURN_42) 1) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296)) (= |ULTIMATE.start_main_~ret5~0#1| (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_42 v_rangesum_~cnt~0_BEFORE_RETURN_42) 1) 4294967296))))) (not (= v_rangesum_~cnt~0_BEFORE_RETURN_42 0)))))) (exists ((|v_#memory_int_124| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_124| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_124| |ULTIMATE.start_main_~#x~0#1.base|) 76 |ULTIMATE.start_main_~temp~0#1|)))))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= |ULTIMATE.start_main_~ret5~0#1| 2147483647))' at error location [2023-12-02 15:45:11,544 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 15:45:11,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 15:45:11,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 22 [2023-12-02 15:45:11,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750662570] [2023-12-02 15:45:11,545 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 15:45:11,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-02 15:45:11,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:45:11,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-02 15:45:11,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=899, Unknown=12, NotChecked=0, Total=1190 [2023-12-02 15:45:11,547 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand has 22 states, 22 states have (on average 1.7727272727272727) internal successors, (39), 22 states have internal predecessors, (39), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-02 15:45:11,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:45:11,589 INFO L93 Difference]: Finished difference Result 85 states and 104 transitions. [2023-12-02 15:45:11,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-02 15:45:11,589 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.7727272727272727) internal successors, (39), 22 states have internal predecessors, (39), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 74 [2023-12-02 15:45:11,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:45:11,590 INFO L225 Difference]: With dead ends: 85 [2023-12-02 15:45:11,590 INFO L226 Difference]: Without dead ends: 59 [2023-12-02 15:45:11,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 185 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 45.2s TimeCoverageRelationStatistics Valid=279, Invalid=899, Unknown=12, NotChecked=0, Total=1190 [2023-12-02 15:45:11,592 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:45:11,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:45:11,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-12-02 15:45:11,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-12-02 15:45:11,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 54 states have (on average 1.0555555555555556) internal successors, (57), 54 states have internal predecessors, (57), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 15:45:11,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2023-12-02 15:45:11,597 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 74 [2023-12-02 15:45:11,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:45:11,597 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2023-12-02 15:45:11,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.7727272727272727) internal successors, (39), 22 states have internal predecessors, (39), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-02 15:45:11,598 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2023-12-02 15:45:11,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-02 15:45:11,599 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:45:11,599 INFO L195 NwaCegarLoop]: trace histogram [60, 20, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:45:11,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-02 15:45:11,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-02 15:45:11,800 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:45:11,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:45:11,800 INFO L85 PathProgramCache]: Analyzing trace with hash 2049564473, now seen corresponding path program 8 times [2023-12-02 15:45:11,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:45:11,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006145818] [2023-12-02 15:45:11,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:45:11,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:45:11,848 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 15:45:11,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [404002249] [2023-12-02 15:45:11,848 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 15:45:11,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:45:11,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:45:11,850 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:45:11,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-02 15:45:12,043 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-12-02 15:45:12,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 15:45:12,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 15:45:12,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:45:12,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2179 backedges. 886 proven. 10 refuted. 0 times theorem prover too weak. 1283 trivial. 0 not checked. [2023-12-02 15:45:12,078 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:45:12,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2179 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2169 trivial. 0 not checked. [2023-12-02 15:45:12,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:45:12,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006145818] [2023-12-02 15:45:12,136 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 15:45:12,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404002249] [2023-12-02 15:45:12,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404002249] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:45:12,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1083168771] [2023-12-02 15:45:12,138 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2023-12-02 15:45:12,139 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:45:12,139 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:45:12,139 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:45:12,139 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:45:16,091 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2023-12-02 15:45:16,327 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:45:22,593 WARN L293 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 163 DAG size of output: 104 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:45:37,651 WARN L293 SmtUtils]: Spent 5.86s on a formula simplification. DAG size of input: 136 DAG size of output: 97 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:46:05,499 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4236#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (or (not (= |ULTIMATE.start_main_~ret2~0#1| |ULTIMATE.start_main_~ret~1#1|)) (not (= |ULTIMATE.start_main_~ret5~0#1| |ULTIMATE.start_main_~ret~1#1|))) (<= 0 (+ |ULTIMATE.start_main_~ret~1#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~ret5~0#1| 2147483648)) (<= |ULTIMATE.start_main_~ret~1#1| 2147483647) (or (and (exists ((v_rangesum_~cnt~0_BEFORE_RETURN_48 Int) (v_rangesum_~ret~0_BEFORE_RETURN_48 Int)) (and (<= 0 v_rangesum_~cnt~0_BEFORE_RETURN_48) (or (and (= v_rangesum_~cnt~0_BEFORE_RETURN_48 0) (= |ULTIMATE.start_main_~ret5~0#1| 0)) (and (or (and (<= (+ v_rangesum_~ret~0_BEFORE_RETURN_48 1) 0) (or (= (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_48 v_rangesum_~cnt~0_BEFORE_RETURN_48) 1) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296)) (= |ULTIMATE.start_main_~ret5~0#1| (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_48 v_rangesum_~cnt~0_BEFORE_RETURN_48) 1) 4294967296))) (not (= (mod v_rangesum_~ret~0_BEFORE_RETURN_48 v_rangesum_~cnt~0_BEFORE_RETURN_48) 0))) (and (or (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_48 1)) (= (mod v_rangesum_~ret~0_BEFORE_RETURN_48 v_rangesum_~cnt~0_BEFORE_RETURN_48) 0)) (= (mod (div v_rangesum_~ret~0_BEFORE_RETURN_48 v_rangesum_~cnt~0_BEFORE_RETURN_48) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296))) (and (= |ULTIMATE.start_main_~ret5~0#1| (mod (div v_rangesum_~ret~0_BEFORE_RETURN_48 v_rangesum_~cnt~0_BEFORE_RETURN_48) 4294967296)) (or (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_48 1)) (= (mod v_rangesum_~ret~0_BEFORE_RETURN_48 v_rangesum_~cnt~0_BEFORE_RETURN_48) 0)))) (not (= v_rangesum_~cnt~0_BEFORE_RETURN_48 0)))))) (exists ((|v_#memory_int_137| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_137| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_137| |ULTIMATE.start_main_~#x~0#1.base|) 76 |ULTIMATE.start_main_~temp~0#1|))))) (and (exists ((|v_#memory_int_137| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_137| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_137| |ULTIMATE.start_main_~#x~0#1.base|) 76 |ULTIMATE.start_main_~temp~0#1|)))) (exists ((v_rangesum_~cnt~0_BEFORE_RETURN_47 Int) (v_rangesum_~ret~0_BEFORE_RETURN_47 Int)) (and (or (and (= v_rangesum_~cnt~0_BEFORE_RETURN_47 0) (= |ULTIMATE.start_main_~ret5~0#1| 0)) (and (or (and (= |ULTIMATE.start_main_~ret5~0#1| (mod (div v_rangesum_~ret~0_BEFORE_RETURN_47 v_rangesum_~cnt~0_BEFORE_RETURN_47) 4294967296)) (or (= (mod v_rangesum_~ret~0_BEFORE_RETURN_47 v_rangesum_~cnt~0_BEFORE_RETURN_47) 0) (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_47 1)))) (and (or (= (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_47 v_rangesum_~cnt~0_BEFORE_RETURN_47) 1) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296)) (= |ULTIMATE.start_main_~ret5~0#1| (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_47 v_rangesum_~cnt~0_BEFORE_RETURN_47) 1) 4294967296))) (not (= (mod v_rangesum_~ret~0_BEFORE_RETURN_47 v_rangesum_~cnt~0_BEFORE_RETURN_47) 0)) (<= (+ v_rangesum_~ret~0_BEFORE_RETURN_47 1) 0)) (and (= (mod (div v_rangesum_~ret~0_BEFORE_RETURN_47 v_rangesum_~cnt~0_BEFORE_RETURN_47) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296)) (or (= (mod v_rangesum_~ret~0_BEFORE_RETURN_47 v_rangesum_~cnt~0_BEFORE_RETURN_47) 0) (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_47 1))))) (not (= v_rangesum_~cnt~0_BEFORE_RETURN_47 0)))) (<= 0 v_rangesum_~cnt~0_BEFORE_RETURN_47))))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= |ULTIMATE.start_main_~ret5~0#1| 2147483647))' at error location [2023-12-02 15:46:05,499 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 15:46:05,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 15:46:05,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-12-02 15:46:05,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294701601] [2023-12-02 15:46:05,499 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 15:46:05,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 15:46:05,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:46:05,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 15:46:05,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=473, Unknown=13, NotChecked=0, Total=600 [2023-12-02 15:46:05,501 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 15:46:05,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:46:05,532 INFO L93 Difference]: Finished difference Result 93 states and 103 transitions. [2023-12-02 15:46:05,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 15:46:05,533 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 104 [2023-12-02 15:46:05,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:46:05,534 INFO L225 Difference]: With dead ends: 93 [2023-12-02 15:46:05,534 INFO L226 Difference]: Without dead ends: 65 [2023-12-02 15:46:05,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 49.2s TimeCoverageRelationStatistics Valid=114, Invalid=473, Unknown=13, NotChecked=0, Total=600 [2023-12-02 15:46:05,535 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:46:05,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:46:05,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-12-02 15:46:05,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2023-12-02 15:46:05,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 60 states have (on average 1.05) internal successors, (63), 60 states have internal predecessors, (63), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 15:46:05,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2023-12-02 15:46:05,540 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 104 [2023-12-02 15:46:05,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:46:05,541 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2023-12-02 15:46:05,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 15:46:05,541 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2023-12-02 15:46:05,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-02 15:46:05,542 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:46:05,542 INFO L195 NwaCegarLoop]: trace histogram [60, 20, 10, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:46:05,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-02 15:46:05,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-02 15:46:05,743 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:46:05,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:46:05,743 INFO L85 PathProgramCache]: Analyzing trace with hash 955571929, now seen corresponding path program 9 times [2023-12-02 15:46:05,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:46:05,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677153149] [2023-12-02 15:46:05,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:46:05,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:46:05,787 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 15:46:05,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1068917304] [2023-12-02 15:46:05,788 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 15:46:05,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:46:05,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:46:05,789 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:46:05,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 15:46:06,024 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 15:46:06,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 15:46:06,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 15:46:06,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:46:06,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2224 backedges. 886 proven. 55 refuted. 0 times theorem prover too weak. 1283 trivial. 0 not checked. [2023-12-02 15:46:06,131 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:46:06,288 INFO L134 CoverageAnalysis]: Checked inductivity of 2224 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2169 trivial. 0 not checked. [2023-12-02 15:46:06,289 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:46:06,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677153149] [2023-12-02 15:46:06,289 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 15:46:06,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068917304] [2023-12-02 15:46:06,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068917304] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:46:06,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [685032695] [2023-12-02 15:46:06,291 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2023-12-02 15:46:06,291 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:46:06,292 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:46:06,292 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:46:06,292 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:46:10,255 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2023-12-02 15:46:10,486 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:46:29,939 WARN L293 SmtUtils]: Spent 6.90s on a formula simplification. DAG size of input: 136 DAG size of output: 97 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:46:55,644 WARN L293 SmtUtils]: Spent 5.94s on a formula simplification. DAG size of input: 155 DAG size of output: 116 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:47:04,430 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5219#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (or (not (= |ULTIMATE.start_main_~ret2~0#1| |ULTIMATE.start_main_~ret~1#1|)) (not (= |ULTIMATE.start_main_~ret5~0#1| |ULTIMATE.start_main_~ret~1#1|))) (<= 0 (+ |ULTIMATE.start_main_~ret~1#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~ret5~0#1| 2147483648)) (<= |ULTIMATE.start_main_~ret~1#1| 2147483647) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (or (and (exists ((v_rangesum_~cnt~0_BEFORE_RETURN_54 Int) (v_rangesum_~ret~0_BEFORE_RETURN_54 Int)) (and (<= 0 v_rangesum_~cnt~0_BEFORE_RETURN_54) (or (and (= v_rangesum_~cnt~0_BEFORE_RETURN_54 0) (= |ULTIMATE.start_main_~ret5~0#1| 0)) (and (or (and (= |ULTIMATE.start_main_~ret5~0#1| (mod (div v_rangesum_~ret~0_BEFORE_RETURN_54 v_rangesum_~cnt~0_BEFORE_RETURN_54) 4294967296)) (or (= (mod v_rangesum_~ret~0_BEFORE_RETURN_54 v_rangesum_~cnt~0_BEFORE_RETURN_54) 0) (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_54 1)))) (and (not (= (mod v_rangesum_~ret~0_BEFORE_RETURN_54 v_rangesum_~cnt~0_BEFORE_RETURN_54) 0)) (<= (+ v_rangesum_~ret~0_BEFORE_RETURN_54 1) 0) (or (= (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_54 v_rangesum_~cnt~0_BEFORE_RETURN_54) 1) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296)) (= |ULTIMATE.start_main_~ret5~0#1| (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_54 v_rangesum_~cnt~0_BEFORE_RETURN_54) 1) 4294967296)))) (and (or (= (mod v_rangesum_~ret~0_BEFORE_RETURN_54 v_rangesum_~cnt~0_BEFORE_RETURN_54) 0) (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_54 1))) (= (mod (div v_rangesum_~ret~0_BEFORE_RETURN_54 v_rangesum_~cnt~0_BEFORE_RETURN_54) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296)))) (not (= v_rangesum_~cnt~0_BEFORE_RETURN_54 0)))))) (exists ((|v_#memory_int_156| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_156| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_156| |ULTIMATE.start_main_~#x~0#1.base|) 76 |ULTIMATE.start_main_~temp~0#1|))))) (and (exists ((|v_#memory_int_156| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_156| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_156| |ULTIMATE.start_main_~#x~0#1.base|) 76 |ULTIMATE.start_main_~temp~0#1|)))) (exists ((v_rangesum_~ret~0_BEFORE_RETURN_53 Int) (v_rangesum_~cnt~0_BEFORE_RETURN_53 Int)) (and (or (and (or (and (= (mod (div v_rangesum_~ret~0_BEFORE_RETURN_53 v_rangesum_~cnt~0_BEFORE_RETURN_53) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296)) (or (= (mod v_rangesum_~ret~0_BEFORE_RETURN_53 v_rangesum_~cnt~0_BEFORE_RETURN_53) 0) (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_53 1)))) (and (<= (+ v_rangesum_~ret~0_BEFORE_RETURN_53 1) 0) (not (= (mod v_rangesum_~ret~0_BEFORE_RETURN_53 v_rangesum_~cnt~0_BEFORE_RETURN_53) 0)) (or (= |ULTIMATE.start_main_~ret5~0#1| (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_53 v_rangesum_~cnt~0_BEFORE_RETURN_53) 1) 4294967296)) (= (mod (+ (div v_rangesum_~ret~0_BEFORE_RETURN_53 v_rangesum_~cnt~0_BEFORE_RETURN_53) 1) 4294967296) (+ |ULTIMATE.start_main_~ret5~0#1| 4294967296)))) (and (or (= (mod v_rangesum_~ret~0_BEFORE_RETURN_53 v_rangesum_~cnt~0_BEFORE_RETURN_53) 0) (< 0 (+ v_rangesum_~ret~0_BEFORE_RETURN_53 1))) (= |ULTIMATE.start_main_~ret5~0#1| (mod (div v_rangesum_~ret~0_BEFORE_RETURN_53 v_rangesum_~cnt~0_BEFORE_RETURN_53) 4294967296)))) (not (= v_rangesum_~cnt~0_BEFORE_RETURN_53 0))) (and (= v_rangesum_~cnt~0_BEFORE_RETURN_53 0) (= |ULTIMATE.start_main_~ret5~0#1| 0))) (<= 0 v_rangesum_~cnt~0_BEFORE_RETURN_53))))) (<= |ULTIMATE.start_main_~ret5~0#1| 2147483647))' at error location [2023-12-02 15:47:04,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 15:47:04,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 15:47:04,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2023-12-02 15:47:04,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440034166] [2023-12-02 15:47:04,430 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 15:47:04,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-02 15:47:04,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:47:04,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-02 15:47:04,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=849, Unknown=15, NotChecked=0, Total=1122 [2023-12-02 15:47:04,432 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand has 21 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 21 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 15:47:04,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:47:04,474 INFO L93 Difference]: Finished difference Result 102 states and 115 transitions. [2023-12-02 15:47:04,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 15:47:04,475 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 21 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 110 [2023-12-02 15:47:04,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:47:04,476 INFO L225 Difference]: With dead ends: 102 [2023-12-02 15:47:04,476 INFO L226 Difference]: Without dead ends: 74 [2023-12-02 15:47:04,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 293 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 54.1s TimeCoverageRelationStatistics Valid=258, Invalid=849, Unknown=15, NotChecked=0, Total=1122 [2023-12-02 15:47:04,477 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:47:04,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:47:04,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-12-02 15:47:04,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2023-12-02 15:47:04,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 69 states have (on average 1.0434782608695652) internal successors, (72), 69 states have internal predecessors, (72), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 15:47:04,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 78 transitions. [2023-12-02 15:47:04,483 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 78 transitions. Word has length 110 [2023-12-02 15:47:04,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:47:04,483 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 78 transitions. [2023-12-02 15:47:04,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 21 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 15:47:04,483 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 78 transitions. [2023-12-02 15:47:04,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-02 15:47:04,484 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:47:04,484 INFO L195 NwaCegarLoop]: trace histogram [60, 20, 19, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:47:04,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-02 15:47:04,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-02 15:47:04,685 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:47:04,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:47:04,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1769521112, now seen corresponding path program 10 times [2023-12-02 15:47:04,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:47:04,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336435005] [2023-12-02 15:47:04,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:47:04,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:47:04,727 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 15:47:04,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [931337553] [2023-12-02 15:47:04,728 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-02 15:47:04,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:47:04,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:47:04,729 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:47:04,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-02 15:47:09,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:47:09,311 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 15:47:16,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:47:16,919 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 15:47:16,919 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 15:47:16,920 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 15:47:16,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-12-02 15:47:17,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-02 15:47:17,126 INFO L445 BasicCegarLoop]: Path program histogram: [10, 1, 1, 1] [2023-12-02 15:47:17,129 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 15:47:17,176 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,176 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,177 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,177 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,177 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,178 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,178 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,178 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,179 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,179 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,179 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,180 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,180 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,180 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,181 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,181 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,182 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,182 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,182 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,183 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,183 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated [2023-12-02 15:47:17,184 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,184 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,184 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,184 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,185 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,185 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,185 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,186 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,186 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,186 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,186 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,187 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,187 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,187 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,188 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,188 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,188 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,189 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,189 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,190 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,190 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret8 could not be translated [2023-12-02 15:47:17,193 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-12-02 15:47:17,194 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,194 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,194 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,195 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,195 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,195 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,195 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,196 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,196 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,197 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,197 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,197 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,198 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,198 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,198 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,199 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,199 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,199 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,199 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,200 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,200 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret12 could not be translated [2023-12-02 15:47:17,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:47:17 BoogieIcfgContainer [2023-12-02 15:47:17,235 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:47:17,236 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:47:17,236 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:47:17,236 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:47:17,236 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:39:12" (3/4) ... [2023-12-02 15:47:17,237 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-12-02 15:47:17,257 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,257 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,257 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,258 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,258 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,258 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,258 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,259 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,259 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,259 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,259 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,260 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,260 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,260 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,261 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,261 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,261 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,262 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,262 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,262 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,262 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated [2023-12-02 15:47:17,263 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,263 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,263 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,264 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,264 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,264 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,264 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,265 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,265 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,265 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,265 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,266 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,266 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,266 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,267 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,267 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,267 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,268 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,268 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,268 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,268 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret8 could not be translated [2023-12-02 15:47:17,270 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-12-02 15:47:17,271 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,271 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,271 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,271 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,272 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,272 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,272 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,272 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,273 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,273 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,273 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,273 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,274 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,274 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,274 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,274 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,275 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,275 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,275 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,275 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-12-02 15:47:17,276 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret12 could not be translated [2023-12-02 15:47:17,342 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 15:47:17,343 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:47:17,343 INFO L158 Benchmark]: Toolchain (without parser) took 485491.86ms. Allocated memory was 165.7MB in the beginning and 513.8MB in the end (delta: 348.1MB). Free memory was 126.5MB in the beginning and 347.3MB in the end (delta: -220.8MB). Peak memory consumption was 129.4MB. Max. memory is 16.1GB. [2023-12-02 15:47:17,344 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory is still 62.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:47:17,344 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.06ms. Allocated memory is still 165.7MB. Free memory was 126.0MB in the beginning and 115.4MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 15:47:17,344 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.24ms. Allocated memory is still 165.7MB. Free memory was 115.4MB in the beginning and 114.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:47:17,345 INFO L158 Benchmark]: Boogie Preprocessor took 26.02ms. Allocated memory is still 165.7MB. Free memory was 113.9MB in the beginning and 112.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:47:17,345 INFO L158 Benchmark]: RCFGBuilder took 346.03ms. Allocated memory is still 165.7MB. Free memory was 112.5MB in the beginning and 97.1MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 15:47:17,345 INFO L158 Benchmark]: TraceAbstraction took 484770.87ms. Allocated memory was 165.7MB in the beginning and 513.8MB in the end (delta: 348.1MB). Free memory was 96.2MB in the beginning and 358.8MB in the end (delta: -262.6MB). Peak memory consumption was 87.5MB. Max. memory is 16.1GB. [2023-12-02 15:47:17,346 INFO L158 Benchmark]: Witness Printer took 107.37ms. Allocated memory is still 513.8MB. Free memory was 358.8MB in the beginning and 347.3MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 15:47:17,347 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory is still 62.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 206.06ms. Allocated memory is still 165.7MB. Free memory was 126.0MB in the beginning and 115.4MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.24ms. Allocated memory is still 165.7MB. Free memory was 115.4MB in the beginning and 114.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.02ms. Allocated memory is still 165.7MB. Free memory was 113.9MB in the beginning and 112.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 346.03ms. Allocated memory is still 165.7MB. Free memory was 112.5MB in the beginning and 97.1MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 484770.87ms. Allocated memory was 165.7MB in the beginning and 513.8MB in the end (delta: 348.1MB). Free memory was 96.2MB in the beginning and 358.8MB in the end (delta: -262.6MB). Peak memory consumption was 87.5MB. Max. memory is 16.1GB. * Witness Printer took 107.37ms. Allocated memory is still 513.8MB. Free memory was 358.8MB in the beginning and 347.3MB 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret12 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret12 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - CounterExampleResult [Line: 61]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] int x[20]; [L43] CALL init_nondet(x) [L16] int i; [L17] i = 0 VAL [i=0, x={4:0}, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=1, x={4:0}, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=2, x={4:0}, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=3, x={4:0}, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=4, x={4:0}, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=5, x={4:0}, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=6, x={4:0}, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=7, x={4:0}, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=8, x={4:0}, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=9, x={4:0}, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=10, x={4:0}, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=11, x={4:0}, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=12, x={4:0}, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=13, x={4:0}, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=14, x={4:0}, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=15, x={4:0}, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=16, x={4:0}, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=17, x={4:0}, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=18, x={4:0}, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=19, x={4:0}, x={4:0}] [L17] COND TRUE i < 20 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=20, x={4:0}, x={4:0}] [L17] COND FALSE !(i < 20) [L43] RET init_nondet(x) [L44] int temp; [L45] int ret; [L46] int ret2; [L47] int ret5; VAL [x={4:0}] [L49] CALL, EXPR rangesum(x) VAL [x={4:0}] [L24] int i; [L25] long long ret; [L26] ret = 0 [L27] int cnt = 0; [L28] i = 0 VAL [cnt=0, i=0, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=1, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=2, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=3, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=4, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=5, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=6, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=7, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=8, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=9, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=10, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=11, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=1, i=12, ret=5, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=2, i=13, ret=27, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=3, i=14, ret=19, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=4, i=15, ret=16, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=5, i=16, ret=3, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=6, i=17, ret=-4, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=7, i=18, ret=-5, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=8, i=19, ret=-9, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=9, i=20, ret=-11, x={4:0}, x={4:0}] [L28] COND FALSE !(i < 20) [L34] COND TRUE cnt !=0 [L35] return ret / cnt; [L49] RET, EXPR rangesum(x) VAL [x={4:0}] [L49] ret = rangesum(x) [L51] EXPR x[0] [L51] temp=x[0] [L51] EXPR x[1] [L51] x[0] = x[1] [L51] x[1] = temp VAL [ret=-1, temp=26, x={4:0}] [L52] CALL, EXPR rangesum(x) VAL [x={4:0}] [L24] int i; [L25] long long ret; [L26] ret = 0 [L27] int cnt = 0; [L28] i = 0 VAL [cnt=0, i=0, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=1, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=2, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=3, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=4, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=5, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=6, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=7, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=8, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=9, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=10, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=11, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=1, i=12, ret=5, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=2, i=13, ret=27, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=3, i=14, ret=19, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=4, i=15, ret=16, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=5, i=16, ret=3, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=6, i=17, ret=-4, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=7, i=18, ret=-5, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=8, i=19, ret=-9, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=9, i=20, ret=-11, x={4:0}, x={4:0}] [L28] COND FALSE !(i < 20) [L34] COND TRUE cnt !=0 [L35] return ret / cnt; [L52] RET, EXPR rangesum(x) VAL [ret=-1, temp=26, x={4:0}] [L52] ret2 = rangesum(x) [L53] EXPR x[0] [L53] temp=x[0] [L54] int i =0 ; VAL [i=0, ret2=-1, ret=-1, temp=25, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=1, ret2=-1, ret=-1, temp=25, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=2, ret2=-1, ret=-1, temp=25, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=3, ret2=-1, ret=-1, temp=25, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=4, ret2=-1, ret=-1, temp=25, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=5, ret2=-1, ret=-1, temp=25, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=6, ret2=-1, ret=-1, temp=25, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=7, ret2=-1, ret=-1, temp=25, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=8, ret2=-1, ret=-1, temp=25, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=9, ret2=-1, ret=-1, temp=25, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=10, ret2=-1, ret=-1, temp=25, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=11, ret2=-1, ret=-1, temp=25, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=12, ret2=-1, ret=-1, temp=25, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=13, ret2=-1, ret=-1, temp=25, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=14, ret2=-1, ret=-1, temp=25, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=15, ret2=-1, ret=-1, temp=25, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=16, ret2=-1, ret=-1, temp=25, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=17, ret2=-1, ret=-1, temp=25, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=18, ret2=-1, ret=-1, temp=25, x={4:0}] [L54] COND TRUE i<20 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=19, ret2=-1, ret=-1, temp=25, x={4:0}] [L54] COND FALSE !(i<20 -1) [L57] x[20 -1] = temp VAL [ret2=-1, ret=-1, temp=25, x={4:0}] [L58] CALL, EXPR rangesum(x) VAL [x={4:0}] [L24] int i; [L25] long long ret; [L26] ret = 0 [L27] int cnt = 0; [L28] i = 0 VAL [cnt=0, i=0, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=1, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=2, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=3, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=4, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=5, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=6, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=7, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=8, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=9, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=10, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND FALSE !(i > 20/2) [L28] i++ VAL [cnt=0, i=11, ret=0, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=1, i=12, ret=22, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=2, i=13, ret=14, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=3, i=14, ret=11, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=4, i=15, ret=-2, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=5, i=16, ret=-9, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=6, i=17, ret=-10, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=7, i=18, ret=-14, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=8, i=19, ret=-16, x={4:0}, x={4:0}] [L28] COND TRUE i < 20 [L29] COND TRUE i > 20/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [cnt=9, i=20, ret=9, x={4:0}, x={4:0}] [L28] COND FALSE !(i < 20) [L34] COND TRUE cnt !=0 [L35] return ret / cnt; [L58] RET, EXPR rangesum(x) VAL [ret2=-1, ret=-1, temp=25, x={4:0}] [L58] ret5 = rangesum(x) [L60] COND TRUE ret != ret2 || ret !=ret5 VAL [ret2=-1, ret5=1, ret=-1, temp=25, x={4:0}] [L61] reach_error() VAL [ret2=-1, ret5=1, ret=-1, temp=25, x={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 484.6s, OverallIterations: 13, TraceHistogramMax: 60, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 452 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 307 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 343 IncrementalHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 145 mSDtfsCounter, 343 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1634 GetRequests, 1406 SyntacticMatches, 7 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2002 ImplicationChecksByTransitivity, 428.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=12, InterpolantAutomatonStates: 128, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 5.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 804 NumberOfCodeBlocks, 698 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 1104 ConstructedInterpolants, 0 QuantifiedInterpolants, 1326 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3055 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 21 InterpolantComputations, 3 PerfectInterpolantSequences, 11657/12349 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-12-02 15:47:17,567 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2023-12-02 15:47:17,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdfbab4-bc69-4396-b29c-bc2d545d12be/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE