./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d611551bdd81171138955e09eec2c35a3c053022d643f86b25023a5ba282a01a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:06:00,142 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:06:00,222 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 08:06:00,229 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:06:00,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:06:00,279 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:06:00,280 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:06:00,281 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:06:00,282 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:06:00,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:06:00,283 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:06:00,284 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:06:00,284 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:06:00,285 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:06:00,286 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:06:00,286 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:06:00,287 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:06:00,288 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:06:00,288 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:06:00,289 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:06:00,290 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:06:00,290 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:06:00,291 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 08:06:00,292 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:06:00,292 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:06:00,293 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:06:00,294 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:06:00,312 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:06:00,312 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:06:00,313 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:06:00,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:06:00,314 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:06:00,314 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:06:00,317 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:06:00,318 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:06:00,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:06:00,319 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:06:00,319 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:06:00,319 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:06:00,319 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:06:00,320 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:06:00,320 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d611551bdd81171138955e09eec2c35a3c053022d643f86b25023a5ba282a01a [2023-11-19 08:06:00,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:06:00,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:06:00,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:06:00,676 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:06:00,677 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:06:00,679 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c [2023-11-19 08:06:03,967 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:06:04,318 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:06:04,320 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c [2023-11-19 08:06:04,332 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/data/ec1278e93/2ad9b29f231a4b6488b5502c39b080bf/FLAGda6330075 [2023-11-19 08:06:04,353 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/data/ec1278e93/2ad9b29f231a4b6488b5502c39b080bf [2023-11-19 08:06:04,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:06:04,365 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:06:04,370 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:04,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:06:04,377 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:06:04,381 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:04" (1/1) ... [2023-11-19 08:06:04,382 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f673bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:04, skipping insertion in model container [2023-11-19 08:06:04,383 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:04" (1/1) ... [2023-11-19 08:06:04,418 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:06:04,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:04,694 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:06:04,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:04,742 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:06:04,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:04 WrapperNode [2023-11-19 08:06:04,743 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:04,745 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:06:04,745 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:06:04,746 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:06:04,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:04" (1/1) ... [2023-11-19 08:06:04,778 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:04" (1/1) ... [2023-11-19 08:06:04,824 INFO L138 Inliner]: procedures = 16, calls = 67, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 102 [2023-11-19 08:06:04,825 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:06:04,826 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:06:04,827 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:06:04,827 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:06:04,837 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:04" (1/1) ... [2023-11-19 08:06:04,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:04" (1/1) ... [2023-11-19 08:06:04,840 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:04" (1/1) ... [2023-11-19 08:06:04,841 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:04" (1/1) ... [2023-11-19 08:06:04,848 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:04" (1/1) ... [2023-11-19 08:06:04,850 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:04" (1/1) ... [2023-11-19 08:06:04,852 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:04" (1/1) ... [2023-11-19 08:06:04,854 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:04" (1/1) ... [2023-11-19 08:06:04,857 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:06:04,859 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:06:04,859 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:06:04,859 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:06:04,860 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:04" (1/1) ... [2023-11-19 08:06:04,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:06:04,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:06:04,906 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:06:04,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:06:04,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:06:04,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:06:04,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:06:04,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:06:04,945 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_30_to_38_0 [2023-11-19 08:06:04,945 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_30_to_38_0 [2023-11-19 08:06:04,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:06:04,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:06:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:06:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 08:06:04,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 08:06:04,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:06:05,047 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:06:05,050 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:06:05,590 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:06:05,607 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:06:05,607 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 08:06:05,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:05 BoogieIcfgContainer [2023-11-19 08:06:05,612 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:06:05,615 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:06:05,615 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:06:05,618 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:06:05,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:06:04" (1/3) ... [2023-11-19 08:06:05,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c64782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:05, skipping insertion in model container [2023-11-19 08:06:05,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:04" (2/3) ... [2023-11-19 08:06:05,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c64782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:05, skipping insertion in model container [2023-11-19 08:06:05,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:05" (3/3) ... [2023-11-19 08:06:05,622 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_geo3-ll.c [2023-11-19 08:06:05,640 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:06:05,640 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-19 08:06:05,693 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:06:05,702 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@5e6bdc33, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:06:05,702 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-11-19 08:06:05,708 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 46 states have (on average 1.7173913043478262) internal successors, (79), 77 states have internal predecessors, (79), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 08:06:05,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 08:06:05,716 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:05,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 08:06:05,718 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-11-19 08:06:05,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:05,724 INFO L85 PathProgramCache]: Analyzing trace with hash 80499, now seen corresponding path program 1 times [2023-11-19 08:06:05,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:05,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637888613] [2023-11-19 08:06:05,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:05,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:05,952 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:06:05,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [265817970] [2023-11-19 08:06:05,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:05,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:06:05,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:06:05,956 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:06:05,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 08:06:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:06,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-19 08:06:06,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:06,615 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 08:06:06,724 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 08:06:06,758 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 08:06:06,840 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 08:06:06,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:06,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 38 [2023-11-19 08:06:06,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:06,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:06,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:06,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:06,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:06,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:06,990 INFO L349 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2023-11-19 08:06:06,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 52 [2023-11-19 08:06:07,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 23 [2023-11-19 08:06:07,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:07,106 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:06:07,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:07,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637888613] [2023-11-19 08:06:07,108 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:06:07,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265817970] [2023-11-19 08:06:07,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265817970] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:07,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:07,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:06:07,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335821573] [2023-11-19 08:06:07,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:07,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:06:07,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:07,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:06:07,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:06:07,165 INFO L87 Difference]: Start difference. First operand has 83 states, 46 states have (on average 1.7173913043478262) internal successors, (79), 77 states have internal predecessors, (79), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:07,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:07,226 INFO L93 Difference]: Finished difference Result 158 states and 169 transitions. [2023-11-19 08:06:07,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:06:07,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-19 08:06:07,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:07,238 INFO L225 Difference]: With dead ends: 158 [2023-11-19 08:06:07,239 INFO L226 Difference]: Without dead ends: 74 [2023-11-19 08:06:07,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:06:07,247 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 1 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:07,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 158 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:06:07,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-11-19 08:06:07,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2023-11-19 08:06:07,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 41 states have (on average 1.6829268292682926) internal successors, (69), 69 states have internal predecessors, (69), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:06:07,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2023-11-19 08:06:07,305 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 3 [2023-11-19 08:06:07,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:07,306 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2023-11-19 08:06:07,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:07,306 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2023-11-19 08:06:07,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 08:06:07,307 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:07,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:07,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 08:06:07,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 08:06:07,523 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-11-19 08:06:07,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:07,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1695132767, now seen corresponding path program 1 times [2023-11-19 08:06:07,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:07,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337041109] [2023-11-19 08:06:07,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:07,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:07,574 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:06:07,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [800193706] [2023-11-19 08:06:07,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:07,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:06:07,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:06:07,577 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:06:07,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 08:06:07,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:07,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 54 conjunts are in the unsatisfiable core [2023-11-19 08:06:07,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:07,790 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:07,791 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:07,793 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:07,797 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 08:06:07,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 15 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 22 [2023-11-19 08:06:07,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:07,964 INFO L349 Elim1Store]: treesize reduction 88, result has 1.1 percent of original size [2023-11-19 08:06:07,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 99 treesize of output 87 [2023-11-19 08:06:07,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2023-11-19 08:06:07,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2023-11-19 08:06:08,043 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:08,044 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:08,045 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:08,049 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 08:06:08,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2023-11-19 08:06:08,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 17 [2023-11-19 08:06:08,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:08,427 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:06:08,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:08,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337041109] [2023-11-19 08:06:08,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:06:08,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800193706] [2023-11-19 08:06:08,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800193706] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:08,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:08,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 08:06:08,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245286056] [2023-11-19 08:06:08,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:08,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 08:06:08,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:08,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 08:06:08,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:06:08,432 INFO L87 Difference]: Start difference. First operand 74 states and 75 transitions. Second operand has 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 7 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:09,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:09,959 INFO L93 Difference]: Finished difference Result 126 states and 128 transitions. [2023-11-19 08:06:09,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 08:06:09,963 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 7 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 08:06:09,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:09,965 INFO L225 Difference]: With dead ends: 126 [2023-11-19 08:06:09,965 INFO L226 Difference]: Without dead ends: 125 [2023-11-19 08:06:09,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:06:09,967 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 113 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:09,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 269 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-19 08:06:09,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-11-19 08:06:09,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 91. [2023-11-19 08:06:09,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 56 states have (on average 1.6785714285714286) internal successors, (94), 84 states have internal predecessors, (94), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-19 08:06:10,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions. [2023-11-19 08:06:10,007 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 103 transitions. Word has length 8 [2023-11-19 08:06:10,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:10,008 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 103 transitions. [2023-11-19 08:06:10,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 7 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:10,009 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions. [2023-11-19 08:06:10,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 08:06:10,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:10,010 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:10,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 08:06:10,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:06:10,230 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-11-19 08:06:10,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:10,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1009508188, now seen corresponding path program 1 times [2023-11-19 08:06:10,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:10,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618867877] [2023-11-19 08:06:10,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:10,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:10,284 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:06:10,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [121135669] [2023-11-19 08:06:10,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:10,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:06:10,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:06:10,295 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:06:10,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 08:06:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:10,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 57 conjunts are in the unsatisfiable core [2023-11-19 08:06:10,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:10,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:10,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 49 [2023-11-19 08:06:10,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:10,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:10,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:10,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:10,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:10,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:10,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:10,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:10,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:10,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:10,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:10,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 21 [2023-11-19 08:06:10,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:10,626 INFO L349 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2023-11-19 08:06:10,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 111 treesize of output 99 [2023-11-19 08:06:10,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2023-11-19 08:06:10,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 32 [2023-11-19 08:06:10,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 15 [2023-11-19 08:06:10,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:10,972 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:06:10,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:10,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618867877] [2023-11-19 08:06:10,977 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:06:10,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121135669] [2023-11-19 08:06:10,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121135669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:10,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:10,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 08:06:10,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644582631] [2023-11-19 08:06:10,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:10,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 08:06:10,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:10,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 08:06:10,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:06:10,982 INFO L87 Difference]: Start difference. First operand 91 states and 103 transitions. Second operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:12,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:12,556 INFO L93 Difference]: Finished difference Result 125 states and 127 transitions. [2023-11-19 08:06:12,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:06:12,557 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 08:06:12,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:12,559 INFO L225 Difference]: With dead ends: 125 [2023-11-19 08:06:12,559 INFO L226 Difference]: Without dead ends: 124 [2023-11-19 08:06:12,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-19 08:06:12,560 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 107 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:12,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 258 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-19 08:06:12,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-19 08:06:12,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 91. [2023-11-19 08:06:12,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 56 states have (on average 1.6607142857142858) internal successors, (93), 84 states have internal predecessors, (93), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-19 08:06:12,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 102 transitions. [2023-11-19 08:06:12,574 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 102 transitions. Word has length 9 [2023-11-19 08:06:12,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:12,575 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 102 transitions. [2023-11-19 08:06:12,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:12,575 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 102 transitions. [2023-11-19 08:06:12,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 08:06:12,576 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:12,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:12,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 08:06:12,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-19 08:06:12,798 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_30_to_38_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-11-19 08:06:12,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:12,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1229982717, now seen corresponding path program 1 times [2023-11-19 08:06:12,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:12,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239962075] [2023-11-19 08:06:12,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:12,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:12,832 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:06:12,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1275846109] [2023-11-19 08:06:12,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:12,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:06:12,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:06:12,841 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:06:12,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 08:06:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:12,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 59 conjunts are in the unsatisfiable core [2023-11-19 08:06:12,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:13,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:13,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 49 [2023-11-19 08:06:13,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:13,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:13,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:13,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:13,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:13,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:13,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:13,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:13,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:13,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:13,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:13,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:13,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:13,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:13,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:13,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:13,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 15 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 50 [2023-11-19 08:06:13,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:13,102 INFO L349 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2023-11-19 08:06:13,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 111 treesize of output 99 [2023-11-19 08:06:13,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2023-11-19 08:06:13,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 47 [2023-11-19 08:06:13,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 29 [2023-11-19 08:06:13,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:13,585 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:06:13,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:13,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239962075] [2023-11-19 08:06:13,586 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:06:13,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275846109] [2023-11-19 08:06:13,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275846109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:13,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:13,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 08:06:13,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835243553] [2023-11-19 08:06:13,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:13,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 08:06:13,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:13,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 08:06:13,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:06:13,589 INFO L87 Difference]: Start difference. First operand 91 states and 102 transitions. Second operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:14,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:14,303 INFO L93 Difference]: Finished difference Result 124 states and 126 transitions. [2023-11-19 08:06:14,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:06:14,306 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-19 08:06:14,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:14,307 INFO L225 Difference]: With dead ends: 124 [2023-11-19 08:06:14,307 INFO L226 Difference]: Without dead ends: 122 [2023-11-19 08:06:14,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:06:14,308 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 98 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:14,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 334 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 08:06:14,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-11-19 08:06:14,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 91. [2023-11-19 08:06:14,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 56 states have (on average 1.625) internal successors, (91), 84 states have internal predecessors, (91), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-19 08:06:14,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2023-11-19 08:06:14,322 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 10 [2023-11-19 08:06:14,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:14,323 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2023-11-19 08:06:14,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:14,323 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2023-11-19 08:06:14,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 08:06:14,324 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:14,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:14,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 08:06:14,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:06:14,546 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting func_to_recursive_line_30_to_38_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-11-19 08:06:14,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:14,547 INFO L85 PathProgramCache]: Analyzing trace with hash -897383323, now seen corresponding path program 1 times [2023-11-19 08:06:14,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:14,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28671307] [2023-11-19 08:06:14,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:14,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:14,587 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:06:14,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [220720376] [2023-11-19 08:06:14,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:14,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:06:14,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:06:14,599 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:06:14,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 08:06:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:14,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 45 conjunts are in the unsatisfiable core [2023-11-19 08:06:14,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:14,754 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:14,755 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:14,756 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:14,759 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 08:06:14,769 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:14,770 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:14,771 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:14,773 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 08:06:14,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:14,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:14,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:14,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:14,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:14,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:14,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:14,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:14,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:15,433 INFO L349 Elim1Store]: treesize reduction 368, result has 18.8 percent of original size [2023-11-19 08:06:15,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 170 treesize of output 473 [2023-11-19 08:06:15,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:15,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:15,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:15,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:15,647 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2023-11-19 08:06:15,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 314 treesize of output 294 [2023-11-19 08:06:15,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2023-11-19 08:06:15,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2023-11-19 08:06:16,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2023-11-19 08:06:16,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2023-11-19 08:06:16,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2023-11-19 08:06:17,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2023-11-19 08:06:17,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2023-11-19 08:06:20,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:20,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:20,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:20,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:20,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:20,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:20,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:20,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:20,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:20,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:20,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:20,170 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:20,186 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:20,191 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:20,383 INFO L349 Elim1Store]: treesize reduction 152, result has 17.8 percent of original size [2023-11-19 08:06:20,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 8743 treesize of output 8620 [2023-11-19 08:06:23,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:23,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:23,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:23,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:23,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:23,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:23,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:23,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:23,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:23,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:23,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:23,114 INFO L349 Elim1Store]: treesize reduction 86, result has 27.7 percent of original size [2023-11-19 08:06:23,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 5699 treesize of output 5614 [2023-11-19 08:06:23,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2023-11-19 08:06:23,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2023-11-19 08:06:23,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2023-11-19 08:06:24,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-11-19 08:06:24,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2023-11-19 08:06:24,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:24,683 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:06:24,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:24,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28671307] [2023-11-19 08:06:24,683 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:06:24,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220720376] [2023-11-19 08:06:24,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220720376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:24,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:24,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 08:06:24,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268037998] [2023-11-19 08:06:24,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:24,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:06:24,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:24,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:06:24,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:06:24,686 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:25,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:25,134 INFO L93 Difference]: Finished difference Result 122 states and 124 transitions. [2023-11-19 08:06:25,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:06:25,135 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-19 08:06:25,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:25,136 INFO L225 Difference]: With dead ends: 122 [2023-11-19 08:06:25,136 INFO L226 Difference]: Without dead ends: 121 [2023-11-19 08:06:25,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2023-11-19 08:06:25,138 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 102 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:25,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 345 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 08:06:25,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-11-19 08:06:25,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 91. [2023-11-19 08:06:25,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 56 states have (on average 1.6071428571428572) internal successors, (90), 84 states have internal predecessors, (90), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-19 08:06:25,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 99 transitions. [2023-11-19 08:06:25,154 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 99 transitions. Word has length 12 [2023-11-19 08:06:25,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:25,155 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 99 transitions. [2023-11-19 08:06:25,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:25,155 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 99 transitions. [2023-11-19 08:06:25,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 08:06:25,156 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:25,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:25,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 08:06:25,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:06:25,381 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting func_to_recursive_line_30_to_38_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-11-19 08:06:25,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:25,381 INFO L85 PathProgramCache]: Analyzing trace with hash -2049079192, now seen corresponding path program 1 times [2023-11-19 08:06:25,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:25,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502328024] [2023-11-19 08:06:25,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:25,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:25,421 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:06:25,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [305584636] [2023-11-19 08:06:25,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:25,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:06:25,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:06:25,440 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:06:25,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 08:06:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:25,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 43 conjunts are in the unsatisfiable core [2023-11-19 08:06:25,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:25,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:25,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:25,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:25,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:25,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:25,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:25,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:25,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:25,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:25,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:25,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:25,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:26,374 INFO L349 Elim1Store]: treesize reduction 360, result has 19.1 percent of original size [2023-11-19 08:06:26,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 179 treesize of output 481 [2023-11-19 08:06:26,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:26,640 INFO L349 Elim1Store]: treesize reduction 65, result has 11.0 percent of original size [2023-11-19 08:06:26,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 1457 treesize of output 1441 [2023-11-19 08:06:26,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 7 [2023-11-19 08:06:26,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2023-11-19 08:06:28,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 58 [2023-11-19 08:06:28,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 58 [2023-11-19 08:06:28,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 58 [2023-11-19 08:06:28,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 58 [2023-11-19 08:06:29,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 58 [2023-11-19 08:06:29,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:29,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:29,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:29,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:29,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:29,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:29,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:29,604 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:29,676 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:29,688 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:29,710 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:29,719 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:29,735 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:29,743 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:29,746 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:29,762 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:29,762 INFO L224 Elim1Store]: Index analysis took 179 ms [2023-11-19 08:06:29,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 422 treesize of output 396 [2023-11-19 08:06:29,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:29,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:29,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:29,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:29,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:29,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:29,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:29,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:30,000 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:30,034 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:30,044 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:30,088 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:30,097 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:30,106 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:30,113 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:30,114 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:30,130 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:30,133 INFO L224 Elim1Store]: Index analysis took 148 ms [2023-11-19 08:06:30,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 472 treesize of output 446 [2023-11-19 08:06:30,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:30,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:30,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:30,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:30,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:30,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:30,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:30,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:31,118 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:31,138 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:31,156 INFO L224 Elim1Store]: Index analysis took 227 ms [2023-11-19 08:06:31,257 INFO L349 Elim1Store]: treesize reduction 90, result has 21.7 percent of original size [2023-11-19 08:06:31,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 338 treesize of output 295 [2023-11-19 08:06:31,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:31,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:31,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:31,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:31,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:31,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:31,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:31,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:31,959 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:31,964 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:31,964 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:31,989 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:31,998 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:32,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 96 [2023-11-19 08:06:32,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-19 08:06:33,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:33,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:33,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:33,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:33,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:33,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:33,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:33,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:33,070 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:33,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 43 [2023-11-19 08:06:33,093 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2023-11-19 08:06:33,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 7 [2023-11-19 08:06:41,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:41,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:41,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:41,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:41,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:41,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:41,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:41,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:41,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:42,022 INFO L349 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2023-11-19 08:06:42,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 159 treesize of output 339 [2023-11-19 08:06:42,164 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2023-11-19 08:06:42,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 165 treesize of output 157 [2023-11-19 08:06:42,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:42,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 1 [2023-11-19 08:06:42,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-11-19 08:06:42,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2023-11-19 08:06:42,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:42,392 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:06:42,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:06:42,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502328024] [2023-11-19 08:06:42,392 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 08:06:42,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305584636] [2023-11-19 08:06:42,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305584636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:42,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:42,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 08:06:42,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801546405] [2023-11-19 08:06:42,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:42,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 08:06:42,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:06:42,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 08:06:42,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:06:42,395 INFO L87 Difference]: Start difference. First operand 91 states and 99 transitions. Second operand has 8 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:42,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:42,767 INFO L93 Difference]: Finished difference Result 121 states and 123 transitions. [2023-11-19 08:06:42,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 08:06:42,768 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-19 08:06:42,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:42,769 INFO L225 Difference]: With dead ends: 121 [2023-11-19 08:06:42,770 INFO L226 Difference]: Without dead ends: 120 [2023-11-19 08:06:42,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:06:42,771 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 83 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:42,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 343 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 08:06:42,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-11-19 08:06:42,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 91. [2023-11-19 08:06:42,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 56 states have (on average 1.5892857142857142) internal successors, (89), 84 states have internal predecessors, (89), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-19 08:06:42,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 98 transitions. [2023-11-19 08:06:42,786 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 98 transitions. Word has length 13 [2023-11-19 08:06:42,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:42,787 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 98 transitions. [2023-11-19 08:06:42,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:42,787 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 98 transitions. [2023-11-19 08:06:42,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 08:06:42,788 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:42,788 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:42,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 08:06:43,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:06:43,001 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting func_to_recursive_line_30_to_38_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-11-19 08:06:43,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:43,002 INFO L85 PathProgramCache]: Analyzing trace with hash 903054535, now seen corresponding path program 1 times [2023-11-19 08:06:43,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:06:43,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202400230] [2023-11-19 08:06:43,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:43,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:06:43,023 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 08:06:43,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [535300579] [2023-11-19 08:06:43,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:43,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:06:43,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:06:43,025 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:06:43,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c852193-2279-48db-92b7-2992b351d925/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 08:06:43,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:43,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-19 08:06:43,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:43,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 42 [2023-11-19 08:06:43,342 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:06:43,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 407117 treesize of output 405589 [2023-11-19 08:06:43,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:44,488 INFO L349 Elim1Store]: treesize reduction 540, result has 25.1 percent of original size [2023-11-19 08:06:44,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 2118 treesize of output 1231 [2023-11-19 08:06:44,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-19 08:06:47,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-19 08:06:47,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-19 08:06:48,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-19 08:06:48,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-19 08:06:48,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-19 08:06:48,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-19 08:06:48,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-19 08:06:48,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-19 08:06:48,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-19 08:06:48,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:48,818 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:48,845 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:48,853 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:48,874 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:48,891 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:48,892 INFO L224 Elim1Store]: Index analysis took 134 ms [2023-11-19 08:06:49,024 INFO L349 Elim1Store]: treesize reduction 216, result has 16.0 percent of original size [2023-11-19 08:06:49,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 19 case distinctions, treesize of input 282 treesize of output 300 [2023-11-19 08:06:50,039 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 08:06:50,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-19 08:06:50,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-19 08:06:50,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-19 08:06:50,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-19 08:06:50,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:50,678 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:50,743 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:50,755 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:50,779 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:50,813 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:50,814 INFO L224 Elim1Store]: Index analysis took 177 ms [2023-11-19 08:06:50,940 INFO L349 Elim1Store]: treesize reduction 171, result has 16.2 percent of original size [2023-11-19 08:06:50,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 17 case distinctions, treesize of input 260 treesize of output 270 [2023-11-19 08:06:51,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-19 08:06:51,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-19 08:06:51,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-19 08:06:51,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-19 08:06:51,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-19 08:06:52,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:52,026 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:52,090 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:52,097 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:52,101 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:52,126 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 08:06:52,128 INFO L224 Elim1Store]: Index analysis took 111 ms [2023-11-19 08:06:52,211 INFO L349 Elim1Store]: treesize reduction 117, result has 17.6 percent of original size [2023-11-19 08:06:52,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 15 case distinctions, treesize of input 238 treesize of output 240 [2023-11-19 08:06:52,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-19 08:06:53,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:53,313 INFO L173 IndexEqualityManager]: detected equality via solver