./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/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_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad27d809606deb561fe152191ab0a1443c0552410f06ac9bb9a7a7bf17dec4e9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:33:58,880 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:33:58,997 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:33:59,005 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:33:59,006 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:33:59,048 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:33:59,048 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:33:59,049 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:33:59,050 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:33:59,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:33:59,057 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:33:59,057 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:33:59,058 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:33:59,060 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:33:59,060 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:33:59,061 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:33:59,061 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:33:59,061 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:33:59,062 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:33:59,062 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:33:59,063 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:33:59,063 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:33:59,064 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:33:59,064 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:33:59,065 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:33:59,066 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:33:59,066 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:33:59,066 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:33:59,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:33:59,067 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:33:59,069 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:33:59,069 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:33:59,069 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:33:59,069 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:33:59,070 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:33:59,070 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:33:59,070 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:33:59,070 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:33:59,071 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:33:59,071 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_38db5404-bf4b-43fb-960b-fe1a37bcdf06/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad27d809606deb561fe152191ab0a1443c0552410f06ac9bb9a7a7bf17dec4e9 [2023-11-19 07:33:59,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:33:59,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:33:59,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:33:59,447 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:33:59,448 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:33:59,449 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c [2023-11-19 07:34:02,606 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:34:02,842 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:34:02,842 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c [2023-11-19 07:34:02,851 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/data/5e1c032c2/c4d27bc75d7842539bd49ddff5cba4de/FLAG0eb784548 [2023-11-19 07:34:02,866 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/data/5e1c032c2/c4d27bc75d7842539bd49ddff5cba4de [2023-11-19 07:34:02,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:34:02,870 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:34:02,872 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:34:02,872 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:34:02,878 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:34:02,879 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:02" (1/1) ... [2023-11-19 07:34:02,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bec1c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:02, skipping insertion in model container [2023-11-19 07:34:02,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:02" (1/1) ... [2023-11-19 07:34:02,904 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:34:03,090 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c[983,996] [2023-11-19 07:34:03,113 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:34:03,125 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:34:03,141 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/sv-benchmarks/c/recursified_nla-digbench/recursified_ps2-ll.c[983,996] [2023-11-19 07:34:03,161 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:34:03,179 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:34:03,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:03 WrapperNode [2023-11-19 07:34:03,180 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:34:03,182 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:34:03,183 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:34:03,183 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:34:03,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:03" (1/1) ... [2023-11-19 07:34:03,203 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:03" (1/1) ... [2023-11-19 07:34:03,225 INFO L138 Inliner]: procedures = 16, calls = 44, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48 [2023-11-19 07:34:03,226 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:34:03,227 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:34:03,228 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:34:03,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:34:03,239 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:03" (1/1) ... [2023-11-19 07:34:03,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:03" (1/1) ... [2023-11-19 07:34:03,255 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:03" (1/1) ... [2023-11-19 07:34:03,257 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:03" (1/1) ... [2023-11-19 07:34:03,263 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:03" (1/1) ... [2023-11-19 07:34:03,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:03" (1/1) ... [2023-11-19 07:34:03,273 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:03" (1/1) ... [2023-11-19 07:34:03,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:03" (1/1) ... [2023-11-19 07:34:03,283 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:34:03,288 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:34:03,288 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:34:03,289 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:34:03,290 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:03" (1/1) ... [2023-11-19 07:34:03,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:34:03,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:03,345 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:34:03,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:34:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:34:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:34:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:34:03,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:34:03,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:34:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:34:03,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:34:03,390 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_26_to_34_0 [2023-11-19 07:34:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_26_to_34_0 [2023-11-19 07:34:03,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:34:03,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:34:03,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:34:03,472 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:34:03,475 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:34:03,688 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:34:03,700 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:34:03,701 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:34:03,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:03 BoogieIcfgContainer [2023-11-19 07:34:03,705 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:34:03,709 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:34:03,710 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:34:03,713 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:34:03,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:34:02" (1/3) ... [2023-11-19 07:34:03,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c978c29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:03, skipping insertion in model container [2023-11-19 07:34:03,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:03" (2/3) ... [2023-11-19 07:34:03,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c978c29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:03, skipping insertion in model container [2023-11-19 07:34:03,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:03" (3/3) ... [2023-11-19 07:34:03,716 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_ps2-ll.c [2023-11-19 07:34:03,736 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:34:03,736 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:34:03,781 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:34:03,788 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;@12492de, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:34:03,790 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:34:03,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 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 07:34:03,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 07:34:03,801 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:03,802 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:03,803 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:34:03,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:03,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1179015159, now seen corresponding path program 1 times [2023-11-19 07:34:03,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:03,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801220166] [2023-11-19 07:34:03,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:03,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:04,105 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:04,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1888231383] [2023-11-19 07:34:04,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:04,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:04,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:04,109 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:04,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:34:04,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:04,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-19 07:34:04,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:04,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:04,500 INFO L349 Elim1Store]: treesize reduction 40, result has 35.5 percent of original size [2023-11-19 07:34:04,502 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 1 case distinctions, treesize of input 64 treesize of output 45 [2023-11-19 07:34:04,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:04,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:04,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:04,551 INFO L349 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2023-11-19 07:34:04,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2023-11-19 07:34:04,601 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-19 07:34:04,602 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 76 treesize of output 70 [2023-11-19 07:34:04,892 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 07:34:04,892 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:34:04,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:04,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801220166] [2023-11-19 07:34:04,894 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:04,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888231383] [2023-11-19 07:34:04,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888231383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:04,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:04,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:34:04,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689402450] [2023-11-19 07:34:04,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:04,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:34:04,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:04,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:34:04,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:34:04,944 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 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 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:05,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:05,187 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions. [2023-11-19 07:34:05,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:34:05,190 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 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 07:34:05,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:05,199 INFO L225 Difference]: With dead ends: 57 [2023-11-19 07:34:05,199 INFO L226 Difference]: Without dead ends: 32 [2023-11-19 07:34:05,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:34:05,206 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 15 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:05,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 87 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:34:05,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-19 07:34:05,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2023-11-19 07:34:05,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-19 07:34:05,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2023-11-19 07:34:05,255 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 9 [2023-11-19 07:34:05,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:05,256 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2023-11-19 07:34:05,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:05,257 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2023-11-19 07:34:05,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 07:34:05,259 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:05,259 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:05,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:05,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:34:05,472 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:34:05,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:05,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1547283466, now seen corresponding path program 1 times [2023-11-19 07:34:05,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:05,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716117795] [2023-11-19 07:34:05,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:05,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:05,510 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:05,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [725126763] [2023-11-19 07:34:05,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:05,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:05,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:05,513 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:05,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:34:05,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:05,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 81 conjunts are in the unsatisfiable core [2023-11-19 07:34:05,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:05,709 INFO L349 Elim1Store]: treesize reduction 78, result has 16.1 percent of original size [2023-11-19 07:34:05,710 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 0 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 22 [2023-11-19 07:34:05,749 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 53 treesize of output 49 [2023-11-19 07:34:05,828 INFO L349 Elim1Store]: treesize reduction 78, result has 16.1 percent of original size [2023-11-19 07:34:05,829 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 0 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 22 [2023-11-19 07:34:05,851 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-19 07:34:05,852 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 23 treesize of output 19 [2023-11-19 07:34:05,909 INFO L349 Elim1Store]: treesize reduction 78, result has 16.1 percent of original size [2023-11-19 07:34:05,910 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 0 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 22 [2023-11-19 07:34:05,931 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 21 treesize of output 19 [2023-11-19 07:34:05,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:05,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:05,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:05,972 INFO L349 Elim1Store]: treesize reduction 69, result has 1.4 percent of original size [2023-11-19 07:34:05,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 155 treesize of output 22 [2023-11-19 07:34:05,999 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-19 07:34:06,000 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 61 treesize of output 57 [2023-11-19 07:34:06,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:06,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:06,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:06,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 104 treesize of output 36 [2023-11-19 07:34:06,731 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:06,731 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:34:07,588 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:07,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:07,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716117795] [2023-11-19 07:34:07,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:34:07,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725126763] [2023-11-19 07:34:07,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725126763] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:34:07,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:34:07,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2023-11-19 07:34:07,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655272232] [2023-11-19 07:34:07,594 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:34:07,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-19 07:34:07,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:07,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-19 07:34:07,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2023-11-19 07:34:07,604 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 19 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 13 states have internal predecessors, (26), 8 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:34:13,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-19 07:34:18,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-19 07:34:18,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:18,588 INFO L93 Difference]: Finished difference Result 74 states and 84 transitions. [2023-11-19 07:34:18,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-19 07:34:18,588 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 13 states have internal predecessors, (26), 8 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2023-11-19 07:34:18,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:18,592 INFO L225 Difference]: With dead ends: 74 [2023-11-19 07:34:18,592 INFO L226 Difference]: Without dead ends: 70 [2023-11-19 07:34:18,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=189, Invalid=1001, Unknown=0, NotChecked=0, Total=1190 [2023-11-19 07:34:18,595 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 91 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:18,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 106 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 207 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2023-11-19 07:34:18,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-11-19 07:34:18,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2023-11-19 07:34:18,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 44 states have (on average 1.1363636363636365) internal successors, (50), 48 states have internal predecessors, (50), 12 states have call successors, (12), 9 states have call predecessors, (12), 11 states have return successors, (17), 11 states have call predecessors, (17), 10 states have call successors, (17) [2023-11-19 07:34:18,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2023-11-19 07:34:18,622 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 19 [2023-11-19 07:34:18,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:18,622 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2023-11-19 07:34:18,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 13 states have internal predecessors, (26), 8 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:34:18,623 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2023-11-19 07:34:18,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 07:34:18,624 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:18,624 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:18,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:18,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:18,840 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:34:18,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:18,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1773891863, now seen corresponding path program 1 times [2023-11-19 07:34:18,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:18,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73815130] [2023-11-19 07:34:18,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:18,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:18,895 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:34:18,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [781883872] [2023-11-19 07:34:18,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:18,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:34:18,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:18,912 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:34:18,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5404-bf4b-43fb-960b-fe1a37bcdf06/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:34:19,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:19,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-19 07:34:19,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:19,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:19,854 INFO L349 Elim1Store]: treesize reduction 401, result has 34.8 percent of original size [2023-11-19 07:34:19,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 18 case distinctions, treesize of input 1362 treesize of output 694 [2023-11-19 07:34:20,014 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 39 treesize of output 37 [2023-11-19 07:34:20,131 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 1 [2023-11-19 07:34:20,186 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 07:34:20,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:20,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 8 treesize of output 1 [2023-11-19 07:34:20,420 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 07:34:20,508 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 17 treesize of output 23 [2023-11-19 07:34:27,772 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:27,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:29,869 INFO L349 Elim1Store]: treesize reduction 214, result has 32.1 percent of original size [2023-11-19 07:34:29,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 11 new quantified variables, introduced 18 case distinctions, treesize of input 31460 treesize of output 30430 [2023-11-19 07:34:52,216 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 3237 treesize of output 3208 [2023-11-19 07:34:54,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:54,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:54,609 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:54,626 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:54,629 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:54,638 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-19 07:34:54,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 295 treesize of output 244 [2023-11-19 07:34:54,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:54,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:54,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:54,745 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:54,758 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:54,766 INFO L349 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-19 07:34:54,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 295 treesize of output 244 [2023-11-19 07:34:55,040 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:55,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:55,042 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:55,055 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:55,057 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:55,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 808 treesize of output 802 [2023-11-19 07:34:55,393 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:55,395 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:55,397 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-11-19 07:34:55,500 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:55,502 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:55,503 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-11-19 07:34:55,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:55,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:55,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:55,575 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:55,576 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:55,582 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:55,585 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:55,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 137 treesize of output 186 [2023-11-19 07:34:55,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:55,769 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:55,784 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:55,787 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:55,799 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2023-11-19 07:34:55,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 801 treesize of output 772 [2023-11-19 07:34:56,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:56,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:56,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:56,024 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:56,036 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:56,055 INFO L349 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-11-19 07:34:56,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 167 treesize of output 138 [2023-11-19 07:34:56,164 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:56,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:56,167 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:56,172 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:56,174 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:56,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 148 treesize of output 197 [2023-11-19 07:34:56,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:56,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:56,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:56,272 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:56,273 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:56,278 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:56,280 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:56,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 148 treesize of output 151 [2023-11-19 07:34:56,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:56,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:56,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:56,508 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:56,509 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:56,514 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:56,517 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:56,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 137 treesize of output 52 [2023-11-19 07:34:56,530 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-19 07:34:56,532 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 19 treesize of output 3 [2023-11-19 07:34:56,547 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:34:56,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:56,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:56,580 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:56,594 INFO L349 Elim1Store]: treesize reduction 67, result has 1.5 percent of original size [2023-11-19 07:34:56,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 183 treesize of output 127 [2023-11-19 07:34:56,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:56,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:56,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:56,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:56,627 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:56,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:56,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 116 [2023-11-19 07:34:56,803 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:56,804 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:56,804 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:56,808 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:34:56,813 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:56,814 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:56,815 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:34:56,818 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:34:56,838 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 07:34:56,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:56,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17 treesize of output 1 [2023-11-19 07:34:56,877 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 119 treesize of output 174 [2023-11-19 07:34:56,892 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 07:34:56,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:56,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 8 treesize of output 1 [2023-11-19 07:34:57,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:57,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:57,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:34:57,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 210 treesize of output 186 [2023-11-19 07:34:57,073 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 160 treesize of output 155 [2023-11-19 07:34:57,084 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 156 treesize of output 148 [2023-11-19 07:34:57,091 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38