./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_cohendiv.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_cohendiv.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c56685f9b6d3ffae51cc6068fd351a6683202b948d7f1ef6f1e8af6f2a55035a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:15:49,013 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:15:49,080 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 19:15:49,084 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:15:49,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:15:49,110 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:15:49,110 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:15:49,111 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:15:49,112 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:15:49,112 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:15:49,113 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:15:49,113 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:15:49,114 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:15:49,114 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:15:49,115 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:15:49,115 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:15:49,116 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:15:49,116 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:15:49,117 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:15:49,117 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:15:49,118 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:15:49,118 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:15:49,119 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:15:49,120 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:15:49,120 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 19:15:49,121 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:15:49,121 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 19:15:49,122 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:15:49,122 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:15:49,123 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:15:49,123 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:15:49,124 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 19:15:49,124 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 19:15:49,124 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 19:15:49,124 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:15:49,124 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:15:49,125 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:15:49,125 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:15:49,125 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:15:49,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:15:49,126 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:15:49,126 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:15:49,126 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:15:49,126 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:15:49,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:15:49,127 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:15:49,127 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:15:49,127 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:15:49,127 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:15:49,127 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_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c56685f9b6d3ffae51cc6068fd351a6683202b948d7f1ef6f1e8af6f2a55035a [2023-12-02 19:15:49,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:15:49,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:15:49,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:15:49,389 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:15:49,390 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:15:49,391 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/recursified_nla-digbench/recursified_cohendiv.c [2023-12-02 19:15:52,232 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:15:52,439 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:15:52,440 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/sv-benchmarks/c/recursified_nla-digbench/recursified_cohendiv.c [2023-12-02 19:15:52,449 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/data/ecbab0b3c/545b821d765f4308bfa97237f1b8bd8c/FLAGed848f3b1 [2023-12-02 19:15:52,465 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/data/ecbab0b3c/545b821d765f4308bfa97237f1b8bd8c [2023-12-02 19:15:52,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:15:52,470 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:15:52,471 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:15:52,472 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:15:52,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:15:52,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:15:52" (1/1) ... [2023-12-02 19:15:52,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@198c1081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:15:52, skipping insertion in model container [2023-12-02 19:15:52,480 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:15:52" (1/1) ... [2023-12-02 19:15:52,510 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:15:52,703 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:15:52,715 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:15:52,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:15:52,761 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:15:52,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:15:52 WrapperNode [2023-12-02 19:15:52,762 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:15:52,763 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:15:52,764 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:15:52,764 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:15:52,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:15:52" (1/1) ... [2023-12-02 19:15:52,781 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:15:52" (1/1) ... [2023-12-02 19:15:52,806 INFO L138 Inliner]: procedures = 17, calls = 85, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2023-12-02 19:15:52,806 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:15:52,807 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:15:52,807 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:15:52,807 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:15:52,819 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:15:52" (1/1) ... [2023-12-02 19:15:52,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:15:52" (1/1) ... [2023-12-02 19:15:52,823 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:15:52" (1/1) ... [2023-12-02 19:15:52,824 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:15:52" (1/1) ... [2023-12-02 19:15:52,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:15:52" (1/1) ... [2023-12-02 19:15:52,835 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:15:52" (1/1) ... [2023-12-02 19:15:52,838 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:15:52" (1/1) ... [2023-12-02 19:15:52,840 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:15:52" (1/1) ... [2023-12-02 19:15:52,844 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:15:52,845 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:15:52,845 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:15:52,845 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:15:52,846 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:15:52" (1/1) ... [2023-12-02 19:15:52,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:15:52,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:15:52,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:15:52,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:15:52,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:15:52,918 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_40_to_51_0 [2023-12-02 19:15:52,918 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_40_to_51_0 [2023-12-02 19:15:52,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:15:52,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 19:15:52,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 19:15:52,919 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_31_to_54_0 [2023-12-02 19:15:52,919 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_31_to_54_0 [2023-12-02 19:15:52,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:15:52,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:15:52,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 19:15:52,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 19:15:52,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 19:15:52,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 19:15:53,032 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:15:53,035 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:15:53,410 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:15:53,472 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:15:53,472 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 19:15:53,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:15:53 BoogieIcfgContainer [2023-12-02 19:15:53,474 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:15:53,477 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:15:53,478 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:15:53,481 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:15:53,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:15:52" (1/3) ... [2023-12-02 19:15:53,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b1928f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:15:53, skipping insertion in model container [2023-12-02 19:15:53,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:15:52" (2/3) ... [2023-12-02 19:15:53,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b1928f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:15:53, skipping insertion in model container [2023-12-02 19:15:53,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:15:53" (3/3) ... [2023-12-02 19:15:53,484 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_cohendiv.c [2023-12-02 19:15:53,502 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:15:53,502 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-12-02 19:15:53,554 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:15:53,561 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;@19eaaf3b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:15:53,561 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-12-02 19:15:53,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 49 states have (on average 1.6938775510204083) internal successors, (83), 81 states have internal predecessors, (83), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-02 19:15:53,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 19:15:53,571 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:15:53,572 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 19:15:53,572 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_31_to_54_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_40_to_51_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_40_to_51_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-12-02 19:15:53,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:15:53,577 INFO L85 PathProgramCache]: Analyzing trace with hash 181748035, now seen corresponding path program 1 times [2023-12-02 19:15:53,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:15:53,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548271217] [2023-12-02 19:15:53,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:15:53,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:15:53,745 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 19:15:53,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1982123733] [2023-12-02 19:15:53,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:15:53,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:15:53,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:15:53,752 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:15:53,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 19:15:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:15:53,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 51 conjunts are in the unsatisfiable core [2023-12-02 19:15:53,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:15:54,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,198 INFO L349 Elim1Store]: treesize reduction 34, result has 42.4 percent of original size [2023-12-02 19:15:54,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 14 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 90 treesize of output 144 [2023-12-02 19:15:54,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:54,296 INFO L349 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2023-12-02 19:15:54,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 79 treesize of output 77 [2023-12-02 19:15:54,346 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 [2023-12-02 19:15:54,478 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 22 [2023-12-02 19:15:54,520 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 57 treesize of output 53 [2023-12-02 19:15:54,692 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:15:54,702 INFO L349 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-12-02 19:15:54,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 94 treesize of output 45 [2023-12-02 19:15:55,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,336 INFO L349 Elim1Store]: treesize reduction 45, result has 33.8 percent of original size [2023-12-02 19:15:55,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 89 treesize of output 126 [2023-12-02 19:15:55,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,397 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-02 19:15:55,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 36 [2023-12-02 19:15:55,433 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 [2023-12-02 19:15:55,461 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 19:15:55,461 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 1 case distinctions, treesize of input 34 treesize of output 29 [2023-12-02 19:15:55,477 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 [2023-12-02 19:15:55,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 35 [2023-12-02 19:15:55,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,659 INFO L349 Elim1Store]: treesize reduction 65, result has 30.1 percent of original size [2023-12-02 19:15:55,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 185 treesize of output 244 [2023-12-02 19:15:55,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,736 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-02 19:15:55,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 36 [2023-12-02 19:15:55,779 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 310 treesize of output 296 [2023-12-02 19:15:55,801 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 105 treesize of output 60 [2023-12-02 19:15:55,840 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 19:15:55,841 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 1 case distinctions, treesize of input 34 treesize of output 29 [2023-12-02 19:15:55,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:55,983 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:15:56,001 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:15:56,010 INFO L349 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-12-02 19:15:56,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 559 treesize of output 453 [2023-12-02 19:15:56,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,296 INFO L349 Elim1Store]: treesize reduction 42, result has 28.8 percent of original size [2023-12-02 19:15:56,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 80 treesize of output 117 [2023-12-02 19:15:56,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,338 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-02 19:15:56,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 33 [2023-12-02 19:15:56,354 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 22 [2023-12-02 19:15:56,371 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 [2023-12-02 19:15:56,389 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 [2023-12-02 19:15:56,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:56,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 26 [2023-12-02 19:15:56,536 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:15:56,537 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:15:56,537 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:15:56,541 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 19:15:56,547 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:15:56,548 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:15:56,549 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:15:56,552 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 19:15:56,559 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:15:56,560 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:15:56,561 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:15:56,562 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:15:56,566 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 19:15:56,763 INFO L349 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2023-12-02 19:15:56,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 21 [2023-12-02 19:15:56,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:15:56,778 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:15:56,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:15:56,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548271217] [2023-12-02 19:15:56,778 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 19:15:56,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982123733] [2023-12-02 19:15:56,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982123733] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:15:56,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:15:56,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:15:56,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756625155] [2023-12-02 19:15:56,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:15:56,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:15:56,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:15:56,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:15:56,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:15:56,812 INFO L87 Difference]: Start difference. First operand has 94 states, 49 states have (on average 1.6938775510204083) internal successors, (83), 81 states have internal predecessors, (83), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 6 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 19:15:57,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:15:57,196 INFO L93 Difference]: Finished difference Result 217 states and 248 transitions. [2023-12-02 19:15:57,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:15:57,199 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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 5 [2023-12-02 19:15:57,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:15:57,207 INFO L225 Difference]: With dead ends: 217 [2023-12-02 19:15:57,207 INFO L226 Difference]: Without dead ends: 120 [2023-12-02 19:15:57,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:15:57,215 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 45 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:15:57,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 389 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 19:15:57,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-12-02 19:15:57,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 106. [2023-12-02 19:15:57,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 60 states have (on average 1.6166666666666667) internal successors, (97), 91 states have internal predecessors, (97), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2023-12-02 19:15:57,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 122 transitions. [2023-12-02 19:15:57,265 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 122 transitions. Word has length 5 [2023-12-02 19:15:57,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:15:57,266 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 122 transitions. [2023-12-02 19:15:57,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 19:15:57,266 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 122 transitions. [2023-12-02 19:15:57,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 19:15:57,267 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:15:57,267 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-02 19:15:57,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 19:15:57,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 19:15:57,468 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_31_to_54_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_40_to_51_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_40_to_51_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-12-02 19:15:57,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:15:57,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1339221879, now seen corresponding path program 1 times [2023-12-02 19:15:57,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:15:57,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939070158] [2023-12-02 19:15:57,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:15:57,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:15:57,512 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 19:15:57,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [813496008] [2023-12-02 19:15:57,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:15:57,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:15:57,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:15:57,514 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:15:57,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 19:15:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:15:57,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-02 19:15:57,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:15:57,658 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:15:57,659 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:15:57,664 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 19:15:57,670 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:15:57,672 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:15:57,677 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 19:15:57,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,811 INFO L349 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2023-12-02 19:15:57,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 358 treesize of output 234 [2023-12-02 19:15:57,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:57,987 INFO L349 Elim1Store]: treesize reduction 42, result has 36.4 percent of original size [2023-12-02 19:15:57,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 260 treesize of output 348 [2023-12-02 19:15:58,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:58,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:58,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:58,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:58,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:58,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:58,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:15:58,078 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-02 19:15:58,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 41 [2023-12-02 19:15:58,107 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 29 treesize of output 21 [2023-12-02 19:15:58,137 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 82 treesize of output 72 [2023-12-02 19:15:58,546 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 22 treesize of output 16 [2023-12-02 19:15:58,598 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 17 treesize of output 13 [2023-12-02 19:15:59,169 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:15:59,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 542 treesize of output 554 [2023-12-02 19:15:59,593 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:15:59,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 530 treesize of output 596 [2023-12-02 19:19:10,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:10,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:10,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:10,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:10,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:10,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:10,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:11,163 INFO L349 Elim1Store]: treesize reduction 85, result has 4.5 percent of original size [2023-12-02 19:19:11,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 7896 treesize of output 5310 [2023-12-02 19:19:12,307 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 [2023-12-02 19:19:12,341 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 [2023-12-02 19:19:12,371 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 [2023-12-02 19:19:12,459 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 [2023-12-02 19:19:12,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:12,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:12,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:12,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:12,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:12,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:12,588 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 [2023-12-02 19:19:12,628 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 [2023-12-02 19:19:12,661 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 [2023-12-02 19:19:12,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:12,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:12,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:12,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:12,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:12,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:12,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:12,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:12,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:12,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:12,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:12,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:12,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:12,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:12,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:12,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:12,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:12,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:12,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:12,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:13,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 19:19:13,826 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:19:13,827 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:19:13,830 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 19:19:13,845 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:19:13,845 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 19:19:13,849 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 19:19:13,903 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-02 19:19:13,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 22 treesize of output 14 [2023-12-02 19:19:13,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:19:13,917 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:19:13,917 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:19:13,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939070158] [2023-12-02 19:19:13,917 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 19:19:13,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813496008] [2023-12-02 19:19:13,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813496008] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:19:13,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:19:13,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:19:13,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180756934] [2023-12-02 19:19:13,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:19:13,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:19:13,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:19:13,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:19:13,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:19:13,919 INFO L87 Difference]: Start difference. First operand 106 states and 122 transitions. Second operand has 6 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 19:19:14,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:19:14,120 INFO L93 Difference]: Finished difference Result 120 states and 130 transitions. [2023-12-02 19:19:14,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:19:14,121 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 6 [2023-12-02 19:19:14,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:19:14,122 INFO L225 Difference]: With dead ends: 120 [2023-12-02 19:19:14,122 INFO L226 Difference]: Without dead ends: 119 [2023-12-02 19:19:14,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:19:14,124 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 40 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:19:14,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 381 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:19:14,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-12-02 19:19:14,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 106. [2023-12-02 19:19:14,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 60 states have (on average 1.6) internal successors, (96), 91 states have internal predecessors, (96), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2023-12-02 19:19:14,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 121 transitions. [2023-12-02 19:19:14,136 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 121 transitions. Word has length 6 [2023-12-02 19:19:14,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:19:14,137 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 121 transitions. [2023-12-02 19:19:14,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 19:19:14,137 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 121 transitions. [2023-12-02 19:19:14,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 19:19:14,137 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:19:14,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:19:14,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 19:19:14,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:19:14,338 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_31_to_54_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_40_to_51_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_40_to_51_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-12-02 19:19:14,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:19:14,338 INFO L85 PathProgramCache]: Analyzing trace with hash -946098558, now seen corresponding path program 1 times [2023-12-02 19:19:14,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:19:14,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659746106] [2023-12-02 19:19:14,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:19:14,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:19:14,366 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 19:19:14,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1332621676] [2023-12-02 19:19:14,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:19:14,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:19:14,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:19:14,367 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:19:14,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 19:19:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:19:14,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 51 conjunts are in the unsatisfiable core [2023-12-02 19:19:14,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:19:14,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:14,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:14,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:14,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:14,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:14,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:14,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:14,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:14,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:14,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:14,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:14,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:14,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:14,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:14,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:14,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:14,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:14,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:14,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:14,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:14,516 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 40 treesize of output 30 [2023-12-02 19:19:14,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2023-12-02 19:19:14,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:14,538 INFO L349 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2023-12-02 19:19:14,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 82 treesize of output 72 [2023-12-02 19:19:14,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2023-12-02 19:19:14,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-02 19:19:14,664 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-02 19:19:14,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 22 treesize of output 14 [2023-12-02 19:19:14,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:19:14,676 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:19:14,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:19:14,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659746106] [2023-12-02 19:19:14,677 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 19:19:14,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332621676] [2023-12-02 19:19:14,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332621676] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:19:14,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:19:14,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:19:14,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908579463] [2023-12-02 19:19:14,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:19:14,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 19:19:14,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:19:14,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 19:19:14,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:19:14,679 INFO L87 Difference]: Start difference. First operand 106 states and 121 transitions. Second operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 19:19:14,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:19:14,945 INFO L93 Difference]: Finished difference Result 121 states and 130 transitions. [2023-12-02 19:19:14,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 19:19:14,945 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2023-12-02 19:19:14,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:19:14,946 INFO L225 Difference]: With dead ends: 121 [2023-12-02 19:19:14,947 INFO L226 Difference]: Without dead ends: 120 [2023-12-02 19:19:14,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-12-02 19:19:14,947 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 41 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:19:14,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 443 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 19:19:14,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-12-02 19:19:14,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 108. [2023-12-02 19:19:14,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 61 states have (on average 1.5737704918032787) internal successors, (96), 92 states have internal predecessors, (96), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2023-12-02 19:19:14,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 121 transitions. [2023-12-02 19:19:14,958 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 121 transitions. Word has length 11 [2023-12-02 19:19:14,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:19:14,958 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 121 transitions. [2023-12-02 19:19:14,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 19:19:14,958 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 121 transitions. [2023-12-02 19:19:14,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 19:19:14,958 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:19:14,958 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:19:14,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 19:19:15,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:19:15,159 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_31_to_54_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_40_to_51_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_40_to_51_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-12-02 19:19:15,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:19:15,159 INFO L85 PathProgramCache]: Analyzing trace with hash 735715870, now seen corresponding path program 1 times [2023-12-02 19:19:15,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:19:15,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074367396] [2023-12-02 19:19:15,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:19:15,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:19:15,192 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 19:19:15,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1720181100] [2023-12-02 19:19:15,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:19:15,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:19:15,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:19:15,194 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:19:15,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f80b1d-30b4-408d-b4fd-fbc8ccfe7290/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 19:19:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:19:15,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 66 conjunts are in the unsatisfiable core [2023-12-02 19:19:15,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:19:15,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,827 INFO L349 Elim1Store]: treesize reduction 214, result has 29.1 percent of original size [2023-12-02 19:19:15,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 448 treesize of output 254 [2023-12-02 19:19:15,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:15,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:16,157 INFO L349 Elim1Store]: treesize reduction 198, result has 14.3 percent of original size [2023-12-02 19:19:16,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 7283 treesize of output 7466 [2023-12-02 19:19:16,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:16,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:16,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:16,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:16,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:16,387 INFO L349 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2023-12-02 19:19:16,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 129 treesize of output 121 [2023-12-02 19:19:17,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:17,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:17,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:17,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:17,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:17,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:17,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:17,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:17,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:17,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:17,297 INFO L224 Elim1Store]: Index analysis took 102 ms [2023-12-02 19:19:17,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:17,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:19:17,326 INFO L349 Elim1Store]: treesize reduction 181, result has 0.5 percent of original size [2023-12-02 19:19:17,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 361 treesize of output 225 [2023-12-02 19:19:17,511 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 27 treesize of output 25 [2023-12-02 19:19:17,576 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 27 treesize of output 25 [2023-12-02 19:19:17,605 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 19:19:17,729 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 27 treesize of output 25 [2023-12-02 19:19:17,845 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 7 treesize of output 5 [2023-12-02 19:19:18,442 INFO L349 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2023-12-02 19:19:18,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 132 treesize of output 145 [2023-12-02 19:19:18,585 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 19:19:18,901 INFO L349 Elim1Store]: treesize reduction 32, result has 54.9 percent of original size [2023-12-02 19:19:18,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 193 treesize of output 220 [2023-12-02 19:19:19,337 INFO L349 Elim1Store]: treesize reduction 88, result has 43.9 percent of original size [2023-12-02 19:19:19,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 393 treesize of output 445 [2023-12-02 19:19:21,634 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:19:21,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 236 treesize of output 254 [2023-12-02 19:19:24,492 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 19:20:27,331 WARN L293 SmtUtils]: Spent 11.89s on a formula simplification that was a NOOP. DAG size: 425 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)