./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 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d611551bdd81171138955e09eec2c35a3c053022d643f86b25023a5ba282a01a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:21:57,068 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:21:57,145 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-23 21:21:57,152 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:21:57,152 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:21:57,181 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:21:57,182 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:21:57,183 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:21:57,184 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:21:57,184 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:21:57,185 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:21:57,186 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:21:57,186 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:21:57,187 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:21:57,187 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:21:57,188 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:21:57,193 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:21:57,193 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:21:57,194 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:21:57,195 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:21:57,196 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:21:57,197 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:21:57,197 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:21:57,198 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:21:57,199 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:21:57,199 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:21:57,200 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:21:57,200 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:21:57,201 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:21:57,201 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:21:57,203 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:21:57,203 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:21:57,203 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:21:57,204 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:21:57,204 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:21:57,204 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:21:57,204 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:21:57,205 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:21:57,206 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:21:57,206 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:21:57,206 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:21:57,207 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:21:57,207 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:21:57,207 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:21:57,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:21:57,208 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:21:57,209 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:21:57,209 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:21:57,209 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:21:57,209 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d611551bdd81171138955e09eec2c35a3c053022d643f86b25023a5ba282a01a [2023-11-23 21:21:57,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:21:57,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:21:57,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:21:57,577 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:21:57,577 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:21:57,579 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c [2023-11-23 21:22:00,785 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:22:01,061 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:22:01,062 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c [2023-11-23 21:22:01,072 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/data/0059cabdc/a1b7825651d94640a8433a19b79a1571/FLAG74eab884d [2023-11-23 21:22:01,093 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/data/0059cabdc/a1b7825651d94640a8433a19b79a1571 [2023-11-23 21:22:01,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:22:01,107 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:22:01,109 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:22:01,109 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:22:01,115 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:22:01,115 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:22:01" (1/1) ... [2023-11-23 21:22:01,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54424e91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:01, skipping insertion in model container [2023-11-23 21:22:01,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:22:01" (1/1) ... [2023-11-23 21:22:01,148 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:22:01,364 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:22:01,379 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:22:01,406 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:22:01,420 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:22:01,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:01 WrapperNode [2023-11-23 21:22:01,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:22:01,422 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:22:01,422 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:22:01,423 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:22:01,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:01" (1/1) ... [2023-11-23 21:22:01,440 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:01" (1/1) ... [2023-11-23 21:22:01,464 INFO L138 Inliner]: procedures = 16, calls = 67, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 102 [2023-11-23 21:22:01,465 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:22:01,465 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:22:01,466 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:22:01,466 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:22:01,477 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:01" (1/1) ... [2023-11-23 21:22:01,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:01" (1/1) ... [2023-11-23 21:22:01,486 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:01" (1/1) ... [2023-11-23 21:22:01,487 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:01" (1/1) ... [2023-11-23 21:22:01,496 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:01" (1/1) ... [2023-11-23 21:22:01,498 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:01" (1/1) ... [2023-11-23 21:22:01,500 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:01" (1/1) ... [2023-11-23 21:22:01,501 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:01" (1/1) ... [2023-11-23 21:22:01,509 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:22:01,510 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:22:01,510 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:22:01,510 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:22:01,511 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:01" (1/1) ... [2023-11-23 21:22:01,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:22:01,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:22:01,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:22:01,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:22:01,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:22:01,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:22:01,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:22:01,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:22:01,619 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_30_to_38_0 [2023-11-23 21:22:01,620 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_30_to_38_0 [2023-11-23 21:22:01,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:22:01,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:22:01,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:22:01,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 21:22:01,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 21:22:01,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:22:01,714 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:22:01,717 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:22:02,175 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:22:02,242 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:22:02,244 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:22:02,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:22:02 BoogieIcfgContainer [2023-11-23 21:22:02,247 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:22:02,250 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:22:02,251 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:22:02,255 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:22:02,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:22:01" (1/3) ... [2023-11-23 21:22:02,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42284751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:22:02, skipping insertion in model container [2023-11-23 21:22:02,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:01" (2/3) ... [2023-11-23 21:22:02,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42284751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:22:02, skipping insertion in model container [2023-11-23 21:22:02,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:22:02" (3/3) ... [2023-11-23 21:22:02,261 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_geo3-ll.c [2023-11-23 21:22:02,283 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:22:02,284 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-23 21:22:02,341 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:22:02,348 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3008156c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:22:02,349 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-11-23 21:22:02,354 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 39 states have (on average 1.8205128205128205) internal successors, (71), 70 states have internal predecessors, (71), 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) [2023-11-23 21:22:02,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-23 21:22:02,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:02,362 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-23 21:22:02,362 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)] === [2023-11-23 21:22:02,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:02,369 INFO L85 PathProgramCache]: Analyzing trace with hash 4301, now seen corresponding path program 1 times [2023-11-23 21:22:02,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:02,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828626572] [2023-11-23 21:22:02,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:02,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:02,580 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:22:02,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2139297646] [2023-11-23 21:22:02,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:02,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:22:02,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:22:02,584 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:22:02,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:22:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:02,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-23 21:22:02,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:22:02,997 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:03,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:03,064 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 [2023-11-23 21:22:03,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:03,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:03,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:03,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:03,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:03,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:03,130 INFO L349 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2023-11-23 21:22:03,131 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 [2023-11-23 21:22:03,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:03,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:03,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:03,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:03,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:03,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:03,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:03,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:03,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:03,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:03,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:03,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:03,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:03,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:03,204 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 [2023-11-23 21:22:03,273 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:03,305 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:03,360 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:03,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:22:03,375 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:22:03,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:03,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828626572] [2023-11-23 21:22:03,376 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:22:03,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139297646] [2023-11-23 21:22:03,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139297646] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:03,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:22:03,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 21:22:03,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859291291] [2023-11-23 21:22:03,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:03,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:22:03,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:03,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:22:03,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:22:03,429 INFO L87 Difference]: Start difference. First operand has 76 states, 39 states have (on average 1.8205128205128205) internal successors, (71), 70 states have internal predecessors, (71), 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 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:22:03,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:03,506 INFO L93 Difference]: Finished difference Result 104 states and 107 transitions. [2023-11-23 21:22:03,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:22:03,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-23 21:22:03,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:22:03,519 INFO L225 Difference]: With dead ends: 104 [2023-11-23 21:22:03,520 INFO L226 Difference]: Without dead ends: 71 [2023-11-23 21:22:03,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:22:03,529 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 1 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:22:03,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 142 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:22:03,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-23 21:22:03,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2023-11-23 21:22:03,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 38 states have (on average 1.736842105263158) internal successors, (66), 66 states have internal predecessors, (66), 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) [2023-11-23 21:22:03,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2023-11-23 21:22:03,582 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 2 [2023-11-23 21:22:03,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:22:03,583 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2023-11-23 21:22:03,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:22:03,585 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2023-11-23 21:22:03,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 21:22:03,586 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:03,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:22:03,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:22:03,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:22:03,791 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)] === [2023-11-23 21:22:03,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:03,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1335794297, now seen corresponding path program 1 times [2023-11-23 21:22:03,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:03,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076173218] [2023-11-23 21:22:03,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:03,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:03,840 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:22:03,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2034461374] [2023-11-23 21:22:03,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:03,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:22:03,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:22:03,842 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:22:03,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:22:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:04,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 61 conjunts are in the unsatisfiable core [2023-11-23 21:22:04,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:22:04,142 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,143 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,144 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,154 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:04,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 80 [2023-11-23 21:22:04,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,350 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,354 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:04,369 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,374 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:04,387 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,391 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:04,440 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,441 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,445 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:04,457 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,457 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,462 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:04,500 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,501 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,507 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:04,539 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,540 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,544 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:04,559 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,560 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,564 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:04,573 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,574 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,579 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:04,591 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,592 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,596 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:04,626 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,627 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,632 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:04,642 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,643 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,648 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:04,661 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,662 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,666 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:04,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,737 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 63 treesize of output 29 [2023-11-23 21:22:04,745 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 [2023-11-23 21:22:04,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:04,783 INFO L349 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2023-11-23 21:22:04,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 63 treesize of output 51 [2023-11-23 21:22:04,798 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 10 treesize of output 9 [2023-11-23 21:22:04,805 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 19 treesize of output 15 [2023-11-23 21:22:04,852 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,853 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,858 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:04,870 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,870 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,875 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:04,898 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,899 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,904 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:04,922 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,923 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,923 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:04,928 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:05,066 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 [2023-11-23 21:22:05,264 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 [2023-11-23 21:22:05,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:22:05,285 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:22:05,285 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:05,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076173218] [2023-11-23 21:22:05,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:22:05,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034461374] [2023-11-23 21:22:05,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034461374] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:05,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:22:05,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 21:22:05,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591773408] [2023-11-23 21:22:05,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:05,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:22:05,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:05,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:22:05,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:22:05,289 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand has 8 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 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) [2023-11-23 21:22:06,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:06,208 INFO L93 Difference]: Finished difference Result 123 states and 125 transitions. [2023-11-23 21:22:06,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 21:22:06,209 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 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 7 [2023-11-23 21:22:06,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:22:06,211 INFO L225 Difference]: With dead ends: 123 [2023-11-23 21:22:06,211 INFO L226 Difference]: Without dead ends: 122 [2023-11-23 21:22:06,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-23 21:22:06,213 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 113 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:22:06,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 268 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 21:22:06,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-11-23 21:22:06,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 88. [2023-11-23 21:22:06,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 53 states have (on average 1.7169811320754718) internal successors, (91), 81 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) [2023-11-23 21:22:06,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 100 transitions. [2023-11-23 21:22:06,230 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 100 transitions. Word has length 7 [2023-11-23 21:22:06,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:22:06,230 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 100 transitions. [2023-11-23 21:22:06,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 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) [2023-11-23 21:22:06,231 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 100 transitions. [2023-11-23 21:22:06,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 21:22:06,231 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:06,232 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:22:06,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:22:06,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:22:06,454 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)] === [2023-11-23 21:22:06,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:06,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1540049790, now seen corresponding path program 1 times [2023-11-23 21:22:06,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:06,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584258265] [2023-11-23 21:22:06,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:06,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:06,519 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:22:06,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [679979891] [2023-11-23 21:22:06,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:06,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:22:06,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:22:06,531 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:22:06,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 21:22:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:06,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 59 conjunts are in the unsatisfiable core [2023-11-23 21:22:06,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:22:06,724 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:06,724 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:06,725 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:06,729 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:06,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 80 [2023-11-23 21:22:06,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,858 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 47 treesize of output 35 [2023-11-23 21:22:06,863 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 [2023-11-23 21:22:06,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:06,906 INFO L349 Elim1Store]: treesize reduction 88, result has 1.1 percent of original size [2023-11-23 21:22:06,906 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 [2023-11-23 21:22:06,924 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 20 treesize of output 16 [2023-11-23 21:22:06,931 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 [2023-11-23 21:22:06,959 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:06,960 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:06,961 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:06,964 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:07,056 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 [2023-11-23 21:22:07,199 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 [2023-11-23 21:22:07,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:22:07,219 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:22:07,219 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:07,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584258265] [2023-11-23 21:22:07,219 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:22:07,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679979891] [2023-11-23 21:22:07,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679979891] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:07,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:22:07,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:22:07,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622370146] [2023-11-23 21:22:07,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:07,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 21:22:07,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:07,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 21:22:07,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:22:07,222 INFO L87 Difference]: Start difference. First operand 88 states and 100 transitions. Second operand has 7 states, 5 states have (on average 1.4) internal successors, (7), 5 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) [2023-11-23 21:22:08,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:08,524 INFO L93 Difference]: Finished difference Result 122 states and 124 transitions. [2023-11-23 21:22:08,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 21:22:08,525 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.4) internal successors, (7), 5 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 [2023-11-23 21:22:08,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:22:08,527 INFO L225 Difference]: With dead ends: 122 [2023-11-23 21:22:08,527 INFO L226 Difference]: Without dead ends: 121 [2023-11-23 21:22:08,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:22:08,528 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 107 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:22:08,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 236 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-23 21:22:08,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-11-23 21:22:08,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 88. [2023-11-23 21:22:08,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 53 states have (on average 1.6981132075471699) internal successors, (90), 81 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) [2023-11-23 21:22:08,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2023-11-23 21:22:08,542 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 8 [2023-11-23 21:22:08,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:22:08,542 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2023-11-23 21:22:08,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.4) internal successors, (7), 5 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) [2023-11-23 21:22:08,543 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2023-11-23 21:22:08,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 21:22:08,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:08,544 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:22:08,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:22:08,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:22:08,766 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)] === [2023-11-23 21:22:08,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:08,767 INFO L85 PathProgramCache]: Analyzing trace with hash 496903273, now seen corresponding path program 1 times [2023-11-23 21:22:08,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:08,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578165797] [2023-11-23 21:22:08,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:08,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:08,830 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:22:08,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1829646461] [2023-11-23 21:22:08,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:08,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:22:08,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:22:08,845 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:22:08,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 21:22:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:08,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 62 conjunts are in the unsatisfiable core [2023-11-23 21:22:08,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:22:09,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:09,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:09,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:09,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:09,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:09,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:09,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:09,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:09,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 42 [2023-11-23 21:22:09,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:09,112 INFO L349 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2023-11-23 21:22:09,113 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 [2023-11-23 21:22:09,136 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 57 treesize of output 47 [2023-11-23 21:22:09,262 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 [2023-11-23 21:22:09,613 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 [2023-11-23 21:22:09,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:22:09,651 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:22:09,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:09,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578165797] [2023-11-23 21:22:09,653 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:22:09,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829646461] [2023-11-23 21:22:09,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829646461] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:09,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:22:09,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 21:22:09,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54489425] [2023-11-23 21:22:09,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:09,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:22:09,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:09,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:22:09,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:22:09,656 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand has 8 states, 6 states have (on average 1.3333333333333333) 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) [2023-11-23 21:22:10,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:10,462 INFO L93 Difference]: Finished difference Result 121 states and 123 transitions. [2023-11-23 21:22:10,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 21:22:10,463 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.3333333333333333) 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 [2023-11-23 21:22:10,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:22:10,464 INFO L225 Difference]: With dead ends: 121 [2023-11-23 21:22:10,464 INFO L226 Difference]: Without dead ends: 119 [2023-11-23 21:22:10,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-23 21:22:10,465 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 98 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:22:10,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 309 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:22:10,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-23 21:22:10,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 88. [2023-11-23 21:22:10,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 53 states have (on average 1.6603773584905661) internal successors, (88), 81 states have internal predecessors, (88), 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) [2023-11-23 21:22:10,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 97 transitions. [2023-11-23 21:22:10,482 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 97 transitions. Word has length 9 [2023-11-23 21:22:10,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:22:10,482 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 97 transitions. [2023-11-23 21:22:10,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.3333333333333333) 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) [2023-11-23 21:22:10,483 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 97 transitions. [2023-11-23 21:22:10,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 21:22:10,483 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:10,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:22:10,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:22:10,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:22:10,697 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)] === [2023-11-23 21:22:10,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:10,697 INFO L85 PathProgramCache]: Analyzing trace with hash 782676811, now seen corresponding path program 1 times [2023-11-23 21:22:10,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:10,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924647946] [2023-11-23 21:22:10,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:10,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:10,731 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:22:10,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1359542333] [2023-11-23 21:22:10,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:10,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:22:10,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:22:10,741 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:22:10,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 21:22:10,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:10,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 50 conjunts are in the unsatisfiable core [2023-11-23 21:22:10,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:22:10,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:10,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:10,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:10,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:10,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:10,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:10,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:10,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:10,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:10,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:10,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:10,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:10,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 44 [2023-11-23 21:22:10,986 INFO L349 Elim1Store]: treesize reduction 114, result has 5.8 percent of original size [2023-11-23 21:22:10,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 1169 treesize of output 1159 [2023-11-23 21:22:11,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:11,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:11,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 20 treesize of output 18 [2023-11-23 21:22:12,136 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 [2023-11-23 21:22:12,267 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 [2023-11-23 21:22:12,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:22:12,287 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:22:12,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:12,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924647946] [2023-11-23 21:22:12,287 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:22:12,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359542333] [2023-11-23 21:22:12,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359542333] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:12,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:22:12,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 21:22:12,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174462838] [2023-11-23 21:22:12,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:12,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 21:22:12,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:12,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 21:22:12,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:22:12,290 INFO L87 Difference]: Start difference. First operand 88 states and 97 transitions. Second operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2023-11-23 21:22:12,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:12,676 INFO L93 Difference]: Finished difference Result 119 states and 121 transitions. [2023-11-23 21:22:12,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 21:22:12,677 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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 11 [2023-11-23 21:22:12,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:22:12,679 INFO L225 Difference]: With dead ends: 119 [2023-11-23 21:22:12,679 INFO L226 Difference]: Without dead ends: 118 [2023-11-23 21:22:12,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2023-11-23 21:22:12,680 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 108 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:22:12,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 311 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:22:12,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-23 21:22:12,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 88. [2023-11-23 21:22:12,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 53 states have (on average 1.6415094339622642) internal successors, (87), 81 states have internal predecessors, (87), 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) [2023-11-23 21:22:12,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 96 transitions. [2023-11-23 21:22:12,705 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 96 transitions. Word has length 11 [2023-11-23 21:22:12,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:22:12,705 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 96 transitions. [2023-11-23 21:22:12,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2023-11-23 21:22:12,706 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 96 transitions. [2023-11-23 21:22:12,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 21:22:12,706 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:12,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:22:12,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:22:12,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:22:12,907 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)] === [2023-11-23 21:22:12,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:12,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1506822590, now seen corresponding path program 1 times [2023-11-23 21:22:12,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:12,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467582754] [2023-11-23 21:22:12,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:12,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:12,955 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:22:12,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2031743488] [2023-11-23 21:22:12,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:12,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:22:12,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:22:12,957 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:22:12,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 21:22:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:13,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 46 conjunts are in the unsatisfiable core [2023-11-23 21:22:13,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:22:13,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:13,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:13,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:13,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:13,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:13,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:13,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:13,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:13,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:13,835 INFO L349 Elim1Store]: treesize reduction 368, result has 18.8 percent of original size [2023-11-23 21:22:13,835 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 354 treesize of output 528 [2023-11-23 21:22:13,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:13,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:13,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:13,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:13,994 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2023-11-23 21:22:13,995 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 247 treesize of output 229 [2023-11-23 21:22:14,064 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 [2023-11-23 21:22:14,120 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 [2023-11-23 21:22:14,677 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 [2023-11-23 21:22:15,089 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 [2023-11-23 21:22:15,193 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 [2023-11-23 21:22:15,317 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 [2023-11-23 21:22:15,401 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 [2023-11-23 21:22:16,037 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:16,065 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:16,079 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:16,133 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:16,142 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:16,152 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:16,160 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:16,191 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:16,192 INFO L224 Elim1Store]: Index analysis took 242 ms [2023-11-23 21:22:16,346 INFO L349 Elim1Store]: treesize reduction 198, result has 14.3 percent of original size [2023-11-23 21:22:16,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 444 treesize of output 400 [2023-11-23 21:22:17,463 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:17,481 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:17,481 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:17,496 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:17,501 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:17,525 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:17,529 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:17,535 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:17,537 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:17,538 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:17,555 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:17,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 366 treesize of output 306 [2023-11-23 21:22:19,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:19,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:19,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:19,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:19,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:19,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:19,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:19,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:19,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:19,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:20,247 INFO L349 Elim1Store]: treesize reduction 240, result has 9.4 percent of original size [2023-11-23 21:22:20,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 719756 treesize of output 687044 [2023-11-23 21:22:20,645 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-23 21:22:20,646 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 376 treesize of output 379 [2023-11-23 21:22:21,200 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 [2023-11-23 21:22:21,226 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:21,246 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:21,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:21,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:21,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:21,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:21,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:21,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:21,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:21,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:21,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:21,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:21,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 76 [2023-11-23 21:22:21,342 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 19 treesize of output 15 [2023-11-23 21:22:21,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:21,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:21,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:21,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:21,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:21,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:21,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:21,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:21,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:21,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:21,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 74 [2023-11-23 21:22:21,385 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-23 21:22:21,385 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 23 treesize of output 7 [2023-11-23 21:22:21,391 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 [2023-11-23 21:22:21,745 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:21,746 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:21,747 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:21,750 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:21,763 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:21,764 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:21,766 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:22:21,769 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 21:22:21,837 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 [2023-11-23 21:22:21,952 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 [2023-11-23 21:22:21,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:22:21,980 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:22:21,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:21,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467582754] [2023-11-23 21:22:21,981 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:22:21,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031743488] [2023-11-23 21:22:21,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031743488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:21,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:22:21,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 21:22:21,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611145269] [2023-11-23 21:22:21,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:21,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:22:21,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:21,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:22:21,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:22:21,984 INFO L87 Difference]: Start difference. First operand 88 states and 96 transitions. Second operand has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2023-11-23 21:22:22,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:22,391 INFO L93 Difference]: Finished difference Result 118 states and 120 transitions. [2023-11-23 21:22:22,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:22:22,392 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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 [2023-11-23 21:22:22,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:22:22,393 INFO L225 Difference]: With dead ends: 118 [2023-11-23 21:22:22,393 INFO L226 Difference]: Without dead ends: 117 [2023-11-23 21:22:22,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-23 21:22:22,395 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 83 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:22:22,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 318 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:22:22,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-23 21:22:22,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 88. [2023-11-23 21:22:22,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 53 states have (on average 1.6226415094339623) internal successors, (86), 81 states have internal predecessors, (86), 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) [2023-11-23 21:22:22,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 95 transitions. [2023-11-23 21:22:22,421 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 95 transitions. Word has length 12 [2023-11-23 21:22:22,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:22:22,422 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 95 transitions. [2023-11-23 21:22:22,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2023-11-23 21:22:22,422 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 95 transitions. [2023-11-23 21:22:22,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 21:22:22,423 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:22,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:22:22,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 21:22:22,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:22:22,637 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)] === [2023-11-23 21:22:22,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:22,637 INFO L85 PathProgramCache]: Analyzing trace with hash 533140013, now seen corresponding path program 1 times [2023-11-23 21:22:22,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:22,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504709112] [2023-11-23 21:22:22,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:22,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:22,659 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:22:22,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2097644588] [2023-11-23 21:22:22,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:22,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:22:22,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:22:22,661 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:22:22,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54eb0f74-42fc-48cc-9df3-1bec4da223cf/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 21:22:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:22,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-23 21:22:22,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:22:22,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:22:26,241 INFO L349 Elim1Store]: treesize reduction 1100, result has 23.1 percent of original size [2023-11-23 21:22:26,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 9238 treesize of output 4054 [2023-11-23 21:22:26,511 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:22:26,512 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 26125 treesize of output 26037 [2023-11-23 21:22:26,766 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 [2023-11-23 21:22:38,600 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 [2023-11-23 21:22:39,259 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 [2023-11-23 21:22:39,359 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 [2023-11-23 21:22:39,451 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 [2023-11-23 21:22:40,026 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 [2023-11-23 21:22:40,139 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 [2023-11-23 21:22:40,203 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 [2023-11-23 21:22:40,298 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 [2023-11-23 21:22:40,412 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 [2023-11-23 21:22:41,013 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 [2023-11-23 21:22:41,119 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 [2023-11-23 21:22:41,815 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 [2023-11-23 21:22:41,903 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 [2023-11-23 21:22:42,036 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